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The electrodes of Lithium-ion Batteries (LIBs) are primarily composed of electrochemically active electrode materials, conductive additives, binders, current collectors, and other components. Among these, binders serve as a critical component of LIBs electrodes. Binders can firmly adhere active materials and conductive materials to the current collector, forming a complete electrode structure. They prevent the detachment or exfoliation of active materials during charging and discharging processes, while also uniformly dispersing active materials and conductive agents. This enables the formation of a favorable electron and ion transport network, thereby facilitating efficient transport of electrons and lithium ions. Currently, substances used as electrode binders include poly(vinylidene fluoride) (PVDF), carboxymethyl cellulose (CMC), styrene-butadiene rubber (SBR), poly(vinyl pyrrolidone) (PVP), poly(methyl methacrylate) (PMMA), poly(acrylonitrile) (PAN), poly(acrylic acid) (PAA), poly(vinyl alcohol) (PVA), sodium alginate (Alg), β-cyclodextrin polymer (β-CDp), polypropylene emulsion (LA132), poly(tetrafluoroethylene) (PTFE), and so on, as well as functionalized derivatives of the above-mentioned polymers or copolymers formed by monomers. In lithium-ion battery (LIB) electrodes, the ideal binder performance should include: (1) chemical and electrochemical stability in a given electrode/electrolyte system, resistance to electrolyte corrosion, and no occurrence of redox reactions within the operating voltage range; (2) It should exhibit good solubility, with fast dissolution rate and high solubility in solvents, and the required solvents should be safe, environmentally friendly, and non-toxic, with water-based solvents being preferred; (3) It should have moderate viscosity to facilitate slurry mixing and maintain slurry stability, while also possessing strong adhesion, resulting in electrodes with high peeling strength, excellent mechanical properties, and low binder usage; (4) It should demonstrate good flexibility to tolerate bending during electrode handling and volume changes of active material particles during the charge-discharge cycles of LIBs; (5) It should be capable of forming an ideal conductive network with conductive agents, leading to electrodes with good electrical conductivity and lithium ion conduction capability; (6) It should be widely available and low-cost. This paper summarizes recent research achievements related to LIB electrode binders, with a focus on introducing the adhesion mechanisms of binders in electrodes and the commonly used oil-based and water-based binders in current LIB electrodes. 1 Adhesion Mechanism of Binders in Lithium-Ion Battery Electrodes The production process of LIB electrodes typically involves four steps: mixing various materials (including electrode active materials) in a solvent to form a battery slurry, coating the slurry onto a current collector, drying, and rolling. It is generally believed that...

Dear Valued Customers and Partners, On behalf of everyone at XIAMEN TOB NEW ENERGY TECHNOLOGY CO., LTD., we extend our warmest wishes for a joyful and peaceful Dragon Boat Festival! To celebrate this traditional festival, our offices will be closed for the holiday period: Holiday Dates: Saturday, May 31st, 2025 - Monday, June 2nd, 2025 Resuming Operations: We will resume normal business operations on Tuesday, June 3rd, 2025. During the holiday closure (May 31st - June 2nd), regular business operations, including order processing, shipping, and customer service responses, may experience delays. For urgent matters requiring immediate attention during the holiday period, please contact our dedicated representative: Contact Person: Amy Wang Email: tob.amy@tobmachine.com Phone: +86-18120715609 We sincerely appreciate your understanding and patience during this time. Normal communication channels and service levels will resume fully on Tuesday, June 3rd. Thank you for your continued trust and partnership with XIAMEN TOB NEW ENERGY TECHNOLOGY CO., LTD. We wish you and your loved ones a wonderful Dragon Boat Festival filled with happiness and prosperity! Warm Regards, The Team at XIAMEN TOB NEW ENERGY TECHNOLOGY CO., LTD. May 30, 2025

On the second day of CIBF2025, TOB NEW ENERGY experienced a peak in visitor traffic. Our CEO Dany Huang , Sales Director Amy Wang, and team members, leveraging their extensive experience, patiently shared industry trends and product knowledge, leaving a strong impression on visitors while attracting the attention of CCTV reporters. During the event, an exclusive interview with our Sales Director Amy was scheduled to highlight TOB’s achievements and insights. TOB NEW ENERGYspecializes in providing end-to-end solutions for the global new energy industry. Our core services span customized construction of R&D lines, pilot production lines, and mass production lines. We also offer advanced battery equipment R&D and manufacturing, technical consulting, and material supply services. Welcome to our Booth 13T001.

TOB NEW ENERGY is showcase its new product - the Sealed Drying Room,Welcome to Booth 13T001 for Live Demos and Product Insights

Lithium Nickel Manganese Cobalt Oxide(NCM) Conductive Additive Multi-walled Carbon Nanotubes SWCNT Single-walled Carbon Nanotubes Polyvinylidene Fluoride（ PVDF） N-Methylpyrrolidon(NMP) Bombshell Aluminum Foil Graphite powder Carbon Coated Silicon Conductive Carbon black Carboxymethyl Cellulose Polymerized Styrene Butadiene Rubber（SBR） Lithium Polyacrylate PAALi Battery Binder(PAALi) Copper Foil Ceramic Battery Separtor High Temperature Tape(Green) Aluminum Battery Tab Copper Coated Nickel Battery Tab Aluminum Laminated Film

TOB NEW ENERGY, a leading provider of integrated battery manufacturing solutions, is proud to announce its participation in the upcoming CIBF 2025, scheduled for May 15th to 17th, 2025 in Shenzhen. With two decades of industry expertise, the Xiamen-based innovator will present its comprehensive suite of solutions for battery research and production at Booth 13T001. Complete Battery Ecosystem Solutions As a turnkey solution provider for global clients across 20+ countries, TOB will demonstrate its full-range capabilities: End-to-End Production Lines Customized battery manufacturing systems encompassing plant design, equipment selection, installation, commissioning, and staff training - all optimized for budget and output requirements. Pilot & Lab Line Expertise Specialized solutions for R&D facilities featuring adaptive laboratory design, precision equipment configuration, and researcher-oriented technical support. Next-Gen Battery Technologies Live demonstrations of advanced solutions including: - Solid-state battery systems - Sodium-ion battery architectures - Lithium-sulfur battery configurations - Dry electrode processing technologies Custom Equipment Solutions From lab-scale prototypes to mass production systems - modular equipment adaptable to all development stages. Advanced Material Portfolio Comprehensive supply chain support with innovative materials for emerging battery technologies. "Our participation at CIBF 2025 underscores our commitment to driving battery innovation," said Dany Huang. "With over 2,000 global partners and 20 years of technical accumulation, we're ready to empower researchers and manufacturers in their transition to next-generation energy storage solutions." Visit Us at CIBF 2025 Explore our solutions at Booth 13T001, where our technical team will present live equipment demonstrations and discuss customized cooperation opportunities. About TOB NEW ENERGY Headquartered in Xiamen, China, TOB NEW ENERGY specializes in integrated battery manufacturing solutions, serving global enterprises and academic institutions since 2002. With 2000+ overseas clients and strategic partnerships with leading industry players, the company continues to push boundaries in energy storage innovation. Contact: Website: www.tobmachine.com Email: tob.amy@tobmachine.com Tel: +86-18120715609 Address: Tong'an District, Xiamen City, Fujian Province, China

Dear Valued Customers, We would like to inform you that TOB New Energy Technology Co., Ltd. will observe the International Labor Day holiday from May 1st to May 5th, 2024. Regular business operations will resume on Monday, May 6th, 2024. Service Arrangements During the Holiday: Order Processing: Orders placed after April 30th, 4:00 PM (GMT+8) will be processed starting May 6th. Urgent Support: For critical technical issues, please contact our 24/7 Emergency Team at +86-18120715609 or email tob.amy@tobmachine.com. Project Inquiries: Non-urgent requests will be responded to within 1 business day after May 6th. We apologize for any inconvenience this may cause and appreciate your understanding. Thank you for your continued trust in TOB New Energy. Wishing you a peaceful and rejuvenating holiday! TOB New Energy Technology Co., Ltd. Email: tob.amy@tobmachine.com | Tel: +86-18120715609 April 30th, 2025

During the lithium battery coating process, misalignment of the A and B surfaces is a critical yet often overlooked issue that directly impacts battery capacity, safety, and cycle life. This misalignment manifests as deviations in coating areas or uneven thickness between the front and back surfaces, potentially leading to risks such as lithium plating and electrode sheet fracture. This article will analyze the multi-dimensional causes from equipment, process, material, and other aspects, while sharing key improvement measures to enhance battery quality consistency. 1. Main Causes of A&B Surface Misalignment 1.1Equipment Factors Insufficient installation accuracy of backup roller/coating roller: Horizontal deviation, coaxial misalignment, or installation errors lead to coating displacement. Positioning error of the coating head: Inadequate encoder/grating ruler precision or sensor signal drift. Abnormal tension control: Uneven tension during unwinding/spooling causes foil stretching, deformation, or wrinkles. 1.2 Material Factors Uneven ductility: Variations in foil ductility result in loss of control over coating gap. Inadequate surface treatment: Surface oxides affect paste adhesion, indirectly causing positional deviation. 1.3Slurry Factors Excessive viscosity: Poor leveling results in slurry accumulation and misalignment. Significant surface tension differences: Uneven edge shrinkage of A/B side slurries. 1.4Process Parameters Coating speed disparity: Different speeds between the two sides lead to inconsistent leveling rates. Inconsistent drying conditions: Temperature differences in A/B side ovens cause varying substrate shrinkage. 2 Improvement Measures 2.1Equipment Optimization Regularly calibrate coaxiality and horizontal alignment of coating rollers and backup rollers. Replace high-precision encoders and grating rulers to ensure coating head positioning error ≤±0.1mm. Optimize tension control systems (e.g., PID closed-loop control) to maintain substrate tension fluctuation ≤±3%. 2.2Foil Material Control Select foils with consistent ductility (e.g., copper/aluminum foil with uniform tensile strength). Enhance foil surface treatment processes (e.g., plasma cleaning or chemical passivation). 2.3Slurry Adjustment Adjust slurry viscosity to optimal leveling range (anode: 10–12 Pa·s; cathode: 4–5 Pa·s). Add surfactants (e.g., PVP or SDS) to balance surface tension differences between A/B side slurries. 2.4Process Parameter Optimization Ensure A/B side coating speeds are consistent, with speed deviation <0.5 m/min. Implement segmented temperature-controlled drying (low-temperature stage for stress relaxation, high-temperature stage for rapid curing), maintaining temperature difference ≤5℃. 3. Specific Troubleshooting Procedures 3.1Equipment Inspection Use a laser interferometer to detect parallelism between coating rollers and backup rollers (error ≤0.02 mm/m). Check servo motor and sensor signal stability (avoid signal drift exceed...