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  • Battery
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    Battery Materials
    TOB NEW ENERGY provides lithium ion battery materials include Cathode Materials, Anode Materials, Casing Materials, Battery Current Collectors, Conducive Materials, Graphene and Graphite Oxide, Binders, Battery Tabs, Battery Separator and Tape, Aluminum Laminate Film, Electrolyte, Pack Materials, Porous Metal Foam Materials, Nanomaterials and many others.
  • Coin
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    Coin Cell Equipment
    TOB New Energy provides professional coin cell lab equipment for lithium ion coin cell lab research, mainly include the small mixer device for slurry, manual film coating machine, electrode cutter, electrode press machine and crimping machine for coin cell sealing.  All the equipment suitable for all kinds of coin cells, such as CR2016, CR2025, CR2032, CR2430 and so on. Coin cell research is the most convenient way for powder materials analysis.
  • Dry
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    Dry Electrode Film Solution
    TOB New Energy dry electrode technology is to mix electrode active material, conductive agent and battery binder to get electrode powder, without using any solvent, then rolled the dry electrode powder into the electrode film. After that, according to the production process requirements, the film of dry electrode material was rolled to the appropriate thickness. Then, conductive adhesive coating on the current collector foil and drying it. The last, laminated the dry electrode film and current collector foil together to get the finished dry electrode.
  • Electrode
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    Electrode Preparation
    Electrode preparation from materials baking to spot welding process before battery cells finished. Including slurry mixing, slurry testing, electrode coating, electrode rolling press, notching and battery tab welding.
  • Cylindrical
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    Cylindrical Cell Assembly Machine
    From winding process to the last sealing process for 18650, 21700, 26650, 32650, 4680, 4690, cylindrical cell assemblY line.
  • Pouch
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    Pouch Cell Assembly Equipment
    From winding process to the last sealing process for pouch polymer cell assemble line.
  • Prismatic
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    Prismatic Cell Assembly Machine
    Aluminum Shell Cell Assembly Machine
  • Supercapacitor
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    Supercapacitor Equipment
    TOB can provide a set of supercapacitor solutions, including production line design and equipment supply.
  • Battery
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    Battery Tester
    Lithium ion Battery Testing Equipment is used for pouch cell, cylinder cell, coin cell parameter testing, it can test voltage, cycle life, capacitry and resistance.
  • Battery
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    Battery Production Line
    A full set of lithium battery producing equipment from mixing to last testing equipment, Including Manual machine, semi-auto battery machine and full auto battery machine.
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what we do for you
about us
WHAT WE DO? Xiamen TOB New Energy Technology Co., Ltd. is a high-tech enterprise specialized in high-end equipment of lithium-ion battery and supercapacitor. Our core technology team has over 20 years experience in lithium-ion battery researching and manufacturing.  TOB new energy was established in 2012, we have always been focusing on the development and operation of lithium-ion battery and its peripheral products. We provide advanced equipment and materials, professional and experienced battery manufacturing technology and comprehensive battery production line solutions for international companies and research institutions who work in lithium-ion battery sector. Our main products include Battery mixer, Electrode coating machine, Electrode slitting machine, Battery winding machine, Electrode stacking machine, Battery sealing and crimping machine, and Battery test system.  TOB adheres to strict quality control and thoughtful customer service, we have obtained the ISO9001 quality management system and C E certificates. Our clients include BMW, Mercedes Benz, A123, SKC, MIT, IIT, and many others. We have designed more than 200 lithium-ion battery and supercapacitor production lines for the companies located in United States, Europe, Russia, India, Korea, Southeast Asia, Australia and South America.  We warmly welcome customers around the world to establish cooperation and create a bright future with us together. We are not only selling the equipment or materials, but provide you an integrated battery solution.
300
+
engineers & workers
5000
+
clients in worldwide
100
+
projects completed
    our works
    latest projects
    We have designed more than 200 lithium-ion battery and supercapacitor production lines for the companies located in United States, Europe, Russia, India, Korea, Southeast Asia, Australia and South America.
    all projects
  • Sodium-ion Battery Lab Line Project
    Sodium-ion Battery Lab Line Project
    Project Name: Sodium-ion Battery Lab Line Project Description: Xiamen Tob New Energy Technology Co., Ltd. designs and establishes a sodium-ion battery lab line for the customer's laboratory, which can manufacture pouch cell, coin cell and 18650S/1.3Ah, 32138S/10Ah, 32140S /10Ah sodium-ion cell. Xiamen Tob New Energy Technology Co., Ltd. provides a complete set of battery manufacturing technology, production line equipment, raw materials, and various consumables. Date: May 2023 Location: China .container-t001 { max-width: 1000px; margin: 0 left; } .carousel { display: block; text-align: left; position: relative; margin-bottom: 50px; } .carousel > input { clip: rect(1px, 1px, 1px, 1px); clip-path: inset(100%); height: 1px; width: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; } .carousel > input:nth-of-type(7):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -600%; } .carousel > input:nth-of-type(6):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -500%; } .carousel > input:nth-of-type(5):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -400%; } .carousel > input:nth-of-type(4):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -300%; } .carousel > input:nth-of-type(3):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -200%; } .carousel > input:nth-of-type(2):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -100%; } .carousel > input:nth-of-type(1):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: 0%; } .carousel > input:nth-of-type(1):checked ~ .carousel__thumbnails li:nth-of-type(1) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(2):checked ~ .carousel__thumbnails li:nth-of-type(2) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(3):checked ~ .carousel__thumbnails li:nth-of-type(3) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(4):checked ~ .carousel__thumbnails li:nth-of-type(4) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(5):checked ~ .carousel__thumbnails li:nth-of-type(5) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(6):checked ~ .carousel__thumbnails li:nth-of-type(6) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(7):checked ~ .carousel__thumbnails li:nth-of-type(7) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel__slides { position: relative; z-index: 1; padding: 0; margin: 0; overflow: hidden; white-space: nowrap; box-sizing: border-box; display: flex; } .carousel__slide { position: relative; display: block; flex: 0 0 100%; width: 100%; height: 100%; overflow: hidden; transition: all 300ms ease-out; vertical-align: top; box-sizing: border-box; white-space: normal; } .carousel__slide div:before { d...
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  • Cylindrical Supercapacitor Lab Line Project In Europe
    Cylindrical Supercapacitor Lab Line Project In Europe
    Project Name: Cylindrical Supercapacitor Lab Line Project Description: Xiamen Tob New Energy Technology Co., Ltd. has designed and established a cylindrical supercapacitor lab line for European customers. TOB provides a complete set of supercapacitor production technology, production line design, supercapacitor lab line equipment, raw materials, and various consumables. The entire supercapacitor lab line will be installed and debugged by TOB engineers at the customer's factory, and training will be provided on the use and maintenance of the equipment until it reaches the acceptance standards. Date: 2023 - 2024 Location: Europe .container-t001 { max-width: 1000px; margin: 0 left; } .carousel { display: block; text-align: left; position: relative; margin-bottom: 50px; } .carousel > input { clip: rect(1px, 1px, 1px, 1px); clip-path: inset(100%); height: 1px; width: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; } .carousel > input:nth-of-type(7):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -600%; } .carousel > input:nth-of-type(6):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -500%; } .carousel > input:nth-of-type(5):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -400%; } .carousel > input:nth-of-type(4):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -300%; } .carousel > input:nth-of-type(3):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -200%; } .carousel > input:nth-of-type(2):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -100%; } .carousel > input:nth-of-type(1):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: 0%; } .carousel > input:nth-of-type(1):checked ~ .carousel__thumbnails li:nth-of-type(1) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(2):checked ~ .carousel__thumbnails li:nth-of-type(2) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(3):checked ~ .carousel__thumbnails li:nth-of-type(3) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(4):checked ~ .carousel__thumbnails li:nth-of-type(4) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(5):checked ~ .carousel__thumbnails li:nth-of-type(5) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(6):checked ~ .carousel__thumbnails li:nth-of-type(6) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(7):checked ~ .carousel__thumbnails li:nth-of-type(7) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel__slides { position: relative; z-index: 1; padding: 0; margin: 0; overflow: hidden; white-space: nowrap; box-sizing: border-box; display: flex; } .carousel__slide { position: relative; display: block; flex: 0 0 100%; width: 100%; height: 100%; overflow: hi...
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  • 60138 Supercapacitor Pilot Line Project
    60138 Supercapacitor Pilot Line Project
    Project Name: 60138( Dia:60mm,Height:138mm),3000F Super-Capacitor Pilot Line Project Description: Xiamen TOB New Energy Technology Co., Ltd. designs and builds a 60138 super- capacitor pilot line for our southeast Asia customers. TOB NEW ENERGY provide a full set of super-capacitor production equipment, testing equipment and materials. TOB New Energy send engineers to the customer's factory for equipment debugging until the super-capacitor production line can run normally. After the project is completed, supply good after sales service to promise the line running stable. Date: 2022 - 2023 Location: Southeast Asia .container-t001 { max-width: 1000px; margin: 0 left; } .carousel { display: block; text-align: left; position: relative; margin-bottom: 50px; } .carousel > input { clip: rect(1px, 1px, 1px, 1px); clip-path: inset(100%); height: 1px; width: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; } .carousel > input:nth-of-type(12):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -1100%; } .carousel > input:nth-of-type(11):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -1000%; } .carousel > input:nth-of-type(10):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -900%; } .carousel > input:nth-of-type(9):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -800%; } .carousel > input:nth-of-type(8):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -700%; } .carousel > input:nth-of-type(7):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -600%; } .carousel > input:nth-of-type(6):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -500%; } .carousel > input:nth-of-type(5):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -400%; } .carousel > input:nth-of-type(4):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -300%; } .carousel > input:nth-of-type(3):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -200%; } .carousel > input:nth-of-type(2):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -100%; } .carousel > input:nth-of-type(1):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: 0%; } .carousel > input:nth-of-type(1):checked ~ .carousel__thumbnails li:nth-of-type(1) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(2):checked ~ .carousel__thumbnails li:nth-of-type(2) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(3):checked ~ .carousel__thumbnails li:nth-of-type(3) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(4):checked ~ .carousel__thumbnails li:nth-of-type(4) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(5):checked ~ .carousel__thumbnails li:nth-of-type(5) { box-shadow: 0px 0px 0px 5px r...
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  • Dry Electrode Supercapacitor Production Line
    Dry Electrode Supercapacitor Production Line
    Project Name: Dry Electrode Supercapacitor Production Line Description: XIAMEN TOB NEW ENERGY TECHNOLOGY CO., LTD. designed and established a 60138 supercapacitor production line which is using dry electrode process for the customer's battery factory, and TOB New Energy provides a full set of production technology, production line equipment, raw materials and supplies of various consumables. Date: From January 2021 to January 2023 Location: North America .container-t001 { max-width: 1000px; margin: 0 left; } .carousel { display: block; text-align: left; position: relative; margin-bottom: 50px; } .carousel > input { clip: rect(1px, 1px, 1px, 1px); clip-path: inset(100%); height: 1px; width: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; } .carousel > input:nth-of-type(6):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -500%; } .carousel > input:nth-of-type(5):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -400%; } .carousel > input:nth-of-type(4):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -300%; } .carousel > input:nth-of-type(3):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -200%; } .carousel > input:nth-of-type(2):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -100%; } .carousel > input:nth-of-type(1):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: 0%; } .carousel > input:nth-of-type(1):checked ~ .carousel__thumbnails li:nth-of-type(1) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(2):checked ~ .carousel__thumbnails li:nth-of-type(2) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(3):checked ~ .carousel__thumbnails li:nth-of-type(3) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(4):checked ~ .carousel__thumbnails li:nth-of-type(4) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(5):checked ~ .carousel__thumbnails li:nth-of-type(5) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(6):checked ~ .carousel__thumbnails li:nth-of-type(6) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel__slides { position: relative; z-index: 1; padding: 0; margin: 0; overflow: hidden; white-space: nowrap; box-sizing: border-box; display: flex; } .carousel__slide { position: relative; display: block; flex: 0 0 100%; width: 100%; height: 100%; overflow: hidden; transition: all 300ms ease-out; vertical-align: top; box-sizing: border-box; white-space: normal; } .carousel__slide div:before { display: block; content: ""; width: 100%; padding-top: 60%; } .carousel__slide div > img { position: absolute; top: 0; left: 0; right: 0; bottom: 0; width: 100%; height: 100%; } .carousel__thumbnails { list-style: none; padding: 0; margin: 0; display: flex; margin: 0 -10px; } .carousel__slides +...
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  • Projects for Lithium ion Pouch Cell Lab Scale Line Building in Brazil
    Projects for Lithium ion Pouch Cell Lab Scale Line Building in Brazil
    Project Name: Projects for Lithium ion pouch cell lab scale line building Description: Xiamen TOB New Energy Technology Co., Ltd. designed a lithium-ion pouch cell lab line for the customer's battery laboratory, and TOB New Energy also provided a complete set of the battery lab equipment and some raw materials for their research. Date: 2020 Location: Brazil .container-t001 { max-width: 1000px; margin: 0 left; } .carousel { display: block; text-align: left; position: relative; margin-bottom: 50px; } .carousel > input { clip: rect(1px, 1px, 1px, 1px); clip-path: inset(100%); height: 1px; width: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; } .carousel > input:nth-of-type(6):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -500%; } .carousel > input:nth-of-type(5):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -400%; } .carousel > input:nth-of-type(4):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -300%; } .carousel > input:nth-of-type(3):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -200%; } .carousel > input:nth-of-type(2):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: -100%; } .carousel > input:nth-of-type(1):checked ~ .carousel__slides .carousel__slide:first-of-type { margin-left: 0%; } .carousel > input:nth-of-type(1):checked ~ .carousel__thumbnails li:nth-of-type(1) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(2):checked ~ .carousel__thumbnails li:nth-of-type(2) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(3):checked ~ .carousel__thumbnails li:nth-of-type(3) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(4):checked ~ .carousel__thumbnails li:nth-of-type(4) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(5):checked ~ .carousel__thumbnails li:nth-of-type(5) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel > input:nth-of-type(6):checked ~ .carousel__thumbnails li:nth-of-type(6) { box-shadow: 0px 0px 0px 5px rgba(40, 170, 130, 0.6); } .carousel__slides { position: relative; z-index: 1; padding: 0; margin: 0; overflow: hidden; white-space: nowrap; box-sizing: border-box; display: flex; } .carousel__slide { position: relative; display: block; flex: 0 0 100%; width: 100%; height: 100%; overflow: hidden; transition: all 300ms ease-out; vertical-align: top; box-sizing: border-box; white-space: normal; } .carousel__slide div:before { display: block; content: ""; width: 100%; padding-top: 50%; } .carousel__slide div > img { position: absolute; top: 0; left: 0; right: 0; bottom: 0; width: 100%; height: 100%; } .carousel__thumbnails { list-style: none; padding: 0; margin: 0; display: flex; margin: 0 -10px; } .carousel__slides + .carousel__thumbnails { margin-top: 10px; } .carousel__thumbnails li { flex: 1 1 auto; max-width: ...
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testimonials
what customers said
Great experience with TOB NEW ENERGY. l found the machines l was looking for on their website. They quickly confirmed that it was available and shipped it. l worked with Gavin. Gavin was very professional, helpful, and easy to work with. Process was easy and smooth.
Brian Howie
Brian Howie
eco systcm
It is a pleasure doing business with supplier. Great communication and fast delivery! I ordered this coating machine and its quality is very good. I really appreciate the people who worked behind delivering the product from China to my place.
Olivia Silva
Olivia Silva
eco systcm
I chose TOB because I simply could not find any other provider that offered all the materials I needed under one platform, such NCA, NMC,graphene oxide powder,etc. I really liked the speed of the supplier and quality of the product.
Marry Smith
Marry Smith
eco systcm
We developed a great partnership with TOB New Energy and their dedication to our researching is evident in all aspects of the lab. We appreciate their attention to detail and creative approach to bringing our new inspiration to move forward.
Joe Deer
Joe Deer
eco systcm
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latest news
The influence of moisture in the lithium battery manufacturing process
The influence of moisture in the lithium battery manufacturing process Apr 10, 2024
The influence of moisture in the lithium battery manufacturing process
During the manufacturing process of lithium-ion batteries, there are three crucial items that must be strictly controlled: dust, metal particles, and moisture. If dust and metal particles are not properly controlled, it will directly lead to safety accidents such as internal short circuits and fires in the battery. If moisture is not effectively controlled, it will also cause significant harm to battery performance and lead to serious quality accidents! Therefore, it is crucial to strictly control the water content of main materials such as electrodes, separators, and electrolytes during the manufacturing process. There must be no relaxation and constant vigilance! The following is a detailed explanation from three aspects: the harm of moisture to lithium batteries, the source of moisture during the manufacturing process, and the control of moisture during the manufacturing process. 1.  The harm of moisture to lithium batteries (1) Battery swelling and leakage: If there is excessive moisture in lithium-ion batteries, it reacts chemically with the lithium salt in the electrolyte, generating HF: H2O + LiPF6 → POF3 + LiF + 2HF Hydrofluoric acid (HF) is a highly corrosive acid that can cause significant damage to battery performance: HF corrodes the metal components, battery shell, and sealing within the battery, eventually leading to cracks, ruptures, and leakage. HF also destroys the SEI (Solid-Electrolyte-Interface) film inside the battery by reacting with its main components: ROCO2Li + HF → ROCO2H + LiF Li2CO3 + 2HF → H2CO3 + 2LiF Eventually, LiF precipitates form inside the battery, causing irreversible chemical reactions in the negative electrode that consume active lithium ions, thereby reducing the battery's energy capacity. When there is a sufficient amount of moisture, more gas is generated, increasing the internal pressure of the battery. This can lead to deformation, swelling, and even leakage, posing a safety risk. Many instances of battery swelling and cover popping encountered in mobile phones or digital electronic products on the market are often attributed to high moisture content and gas generation inside the lithium battery.   (2) Increased battery internal resistance: Battery internal resistance is one of the most critical performance parameters, serving as a primary indicator of the ease with which ions and electrons can travel within the battery. It directly affects the battery's cycle life and operating state. A lower internal resistance means less voltage is consumed during discharge, resulting in higher energy output. An increase in moisture content can lead to the formation of POF3 and LiF precipitates on the surface of the SEI film (Solid-Electrolyte-Interface). This degrades the density and uniformity of the SEI film, gradually increasing the battery's internal resistance and decreasing its discharge capacity.   (3) Shortened cycle life: Excessive moisture can damage the SEI film, leading to a gradual increa...
  • What is the side voltage of lithium battery? How to control the side voltage?
    What is the side voltage of lithium battery? How to control the side voltage?
    What is the side voltage of lithium battery? How to control the side voltage? Apr 07, 2024
    The side voltage of the battery specifically refers to the voltage of the aluminum layer between the cathode tab and the aluminum laminated film of the polymer battery. The side voltage of the polymer lithium battery refers to: 1.The voltage of the aluminum layer between the cathode tab and the aluminum laminated film; 2. The voltage of the aluminum layer between the anode tab and the aluminum laminated film. In theory, the aluminum layer between the cathode tab and the aluminum laminated film is insulated, which means that their voltage should be 0. In fact, during the processing of the aluminum laminated film, the inner PP layer may be locally damaged, resulting in local conduction (including electronic channels and ionic channels) between them, forming a micro-battery and thus a potential difference (voltage). The side voltage standards vary among manufacturers, but most of the industry sets it below 1.0V. The standard of voltage is based on the dissolution potential of aluminum-lithium alloy Side voltage testing: Side voltage testing is primarily used to inspect the sealing effect of lithium battery packaging films and detect short circuits between the tab and the aluminum laminated film of the packaging film. Short circuits can cause corrosion of the aluminum laminated film, electrolyte leakage, gas swelling, low voltage, and a series of other issues, posing safety hazards. The side voltage of lithium polymer batteries specifically refers to the voltage across the aluminum layer between the positive tab and the aluminum-laminated film of a polymer lithium battery. In theory, the aluminum layer between the positive terminal and the aluminum-laminated film should be insulated, meaning that their voltage should be zero. However, during the processing of the aluminum-laminated film, the inner PP layer can suffer from localized damage, resulting in partial conduction (including both electronic and ionic channels) between them. This creates a micro-battery, leading to a potential difference (voltage). The side voltage standards vary across manufacturers, but the industry generally sets it below 1.0V. The basis for this voltage standard is derived from the dissolution potential of the aluminum-lithium alloy. The potential difference between the positive tab and the aluminum-laminated shell is used to check if there are electronic channels between the negative tab and the aluminum-laminated film. If there are electronic channels between the negative tab and the aluminum-laminated film, and the inner PP layer of the aluminum-laminated film is damaged, corrosion may occur. One of the reasons for gas swelling: packaging corrosion. Gas swelling can be quite troublesome. Without effective detection methods, it's difficult to control defective products within the company and prevent them from reaching customers. The issue may manifest months later as gas swelling, leading to returns. In such cases, the aluminum-laminated film of the battery cell has alrea...
  • The influence of SBR on graphite dispersion
    The influence of SBR on graphite dispersion
    The influence of SBR on graphite dispersion Mar 28, 2024
    When there is only a low content of CMC in the slurry without SBR, graphite particles agglomerate during the homogenization process and cannot be well dispersed. When the ratio of CMC to graphite is moderate, adding 1.0% to 4.5% of SBR to the slurry will cause SBR to adsorb on the surface of graphite, dispersing the graphite particles and reducing the viscosity and modulus of the slurry. When the amount of CMC is 0.7% to 1.0%, the slurry exhibits viscoelasticity, and continuous addition of SBR will not change the rheological properties of the slurry. Comparing the two mixing methods of adding SBR and CMC simultaneously and adding CMC first and then SBR, the results show that CMC plays a leading role in the dispersion of graphite in the slurry, and CMC preferentially adsorbs on the surface of graphite particles. In general, when the amount of CMC added is very low, the addition of SBR will adsorb on the surface of graphite particles, which has a certain impact on the dispersion of graphite. As the amount of CMC added increases, the amount of adsorption on the surface of graphite also increases, and SBR cannot adsorb on the surface of graphite, thus playing no role in the dispersion of graphite. When a certain amount of CMC is reached, the combined attraction of excess CMC that fails to adsorb on the surface of graphite particles becomes greater than the repulsion, which can lead to agglomeration between graphite particles. Therefore, CMC plays a crucial role in the dispersion of graphite negative electrode slurry. Email :tob.amy@tobmachine.com Skype :amywangbest86 Whatsapp/Phone number :+86 181 2071 5609
  • Lithium-ion Battery Slurry Mixing Equipment
    Lithium-ion Battery Slurry Mixing Equipment
    Lithium-ion Battery Slurry Mixing Equipment Mar 19, 2024
    Double planetary mixer Currently, the mainstream slurry mixing equipment used by lithium-ion battery manufacturers is the double planetary mixer, also known as the PD mixer. This mixer is equipped with a low-speed mixing component, Planet, and a high-speed dispersing component, Disper. The low-speed mixing component comprises two folding frame agitators that utilize planetary gear transmission. As the agitators rotate and orbit, they allow the material to move in various directions, achieving the desired mixing effect within a relatively short time. The high-speed dispersing component typically features a toothed dispersing disk that rotates along with the planetary carrier while spinning rapidly, exerting intense shearing and dispersing forces on the material. This effect is several times greater than that of ordinary mixers. Additionally, the dispersing component can be configured with either a single or double dispersing shaft, depending on the specific requirements of the application. Ball mill mixing Ball milling mixing is also often used for the preparation of lithium-ion battery slurry, which is generally more common in laboratories. Similar to fluid mechanics-based mixing methods, the dispersion ability of the ball milling process is determined by the balance of cluster fragmentation and agglomeration reorganization speeds, which is related to the properties of powder particles and can be changed by the addition of surfactants. In the ball milling process, powder particles undergo a large number of surface and volumetric changes, which may lead to mechanical and chemical transformations of the material (such as the rupture of carbon nanotubes, changes in their aspect ratio and structure). Reactions may occur between particles, between powder and dispersing media (solvents and binders), and even between powder and grinding balls. Collisions between grinding balls and local fluid high-shear turbulence can also cause the rupture of binder molecules. Ultrasonic stirring Currently, ultrasound is used by people for mixing at the microscopic scale based on the transient acoustic cavitation effect. This effect needs to be generated under quite high ultrasonic intensity, accompanied by the formation and growth of a large number of microbubbles. When the bubble size reaches a certain critical value, the bubble growth rate increases rapidly and then ruptures instantly, forming shock waves to disperse agglomerates while causing local high temperature and high pressure (local pressure can reach thousands of atmospheres). Another process that occurs during ultrasonic mixing is the macroscopic flow of the liquid. The concentration of cavitation bubbles gradually decreases along the axis centered on the generator, and the bubbles diffuse to low-concentration regions, driving the liquid to flow with a speed of up to 2m/s. This fluid flow is sufficient to provide adequate mixing effects without the need for additional equipment. Email :tob.amy@tobmachine.c...

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