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Lithium-ion Battery Anode Material Classification
Apr 26 , 2024
Si Anode Material
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Lithium-ion Battery Anode Material Classification As one of the key materials for lithium-ion batteries, negative electrode materials need to meet multiple conditions. The Li intercalation and deintercalation reaction has a low redox potential to satisfy the high output voltage of lithium-ion batteries. During the process of Li intercalation and deintercalation, the electrode potential changes lit...read more
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Key Points of Lithium-ion Battery Areal Density DesignJun 24 , 2024Areal density（mg/cm2）：Areal density refers to the mass per unit area, which in this case is (the mass per unit area ofthe region ignoring the volume). Compacted density（g/cm3）：The compacted density indicates the mass contained in a unit volume, which has a lot to do with the properties of the material itself. Thickness：The total thickness of the material and the foil is generally expressed in micr...read more
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Importance of Battery ConsistencyAug 12 , 2024The inconsistency of energy storage batteries mainly refers to the inconsistency of parameters such as battery capacity, internal resistance, and temperature. Our daily experience is that when two dry batteries are connected in positive and negative directions, the flashlight will light up, and we don’t consider consistency. However, once batteries are used on a large scale in energy storage syste...read more
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The stability and dispersibility of battery slurry have an important impact on the properties of electrodes and finished battery products. So how to characterize the stability and dispersibility of battery slurry? Characterization method of battery slurry stability 1. Solid content method The solid content test method is a low-cost and easy-to-test method. Its principle is to place the slurry in a...read more
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WANG Kunpeng ,1, LIU Zhaolin2, LIN Cunsheng2, WANG Zhiyu ,1,2 1. State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China 2. Branch of New Material Development, Valiant Co., Ltd., Yantai 265503, China Abstract In comparison to Li-ion batteries, Na-ion batteries offer the benefits of low cost, good low-temperature performance, and safety...read more
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Why do Lithium-ion Batteries Use Aluminum Shells?Dec 24 , 2024When designing lithium-ion batteries, the choice of battery casing material is critical. It must not only protect the battery's internal electrochemical components and structure but also possess properties like heat resistance, corrosion resistance, vibration resistance, and crush resistance. Among numerous materials, aluminum shells have emerged as the preferred choice due to their unique advanta...read more
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Lithium-ion batteries (LIBs) are the powerhouse of modern electronics and electric vehicles (EVs), and their performance hinges on the cathode materials. Among these, ternary cathode materials such as NCM (Nickel-Cobalt-Manganese oxides) and NCA (Nickel-Cobalt-Aluminum oxides) dominate due to their balanced energy density and stability. However, varying the ratios of nickel (Ni), cobalt (Co), mang...read more
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The voltage of a lithium battery is closely related to the electrode potentials of its cathode and anode materials. Variations in voltage among lithium batteries using different materials primarily stem from the following factors: Impact of Electrode Materials’ Chemical Properties Lithium batteries operate through the movement of lithium ions between the cathode and anode during charging and disch...read more
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Fineness Requirements for Lithium-Ion Battery SlurryJun 16 , 2025In lithium-ion battery manufacturing, the fineness of the slurry (mainly referring to the electrode slurry) is a key parameter affecting electrode performance (such as capacity, rate capability, cycle life, safety) and process stability. Different battery types have significantly different fineness requirements for the slurry (usually measured by particle size distribution indicators such as D50, ...read more
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I. Characteristics and Advantages of Polyacrylate (PAA) Binders Minimal Swelling in Electrolyte Solvents: Exhibits low swelling, maintaining structural integrity of electrode sheets during charge/discharge cycles. High Proportion of Carboxyl Groups: The high density of polar carboxyl groups forms strong hydrogen bonds with hydroxyl-containing active materials, enhancing dispersion stability. Conti...read more
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Reasons for Self-Discharge in Lithium-Ion BatteriesJul 15 , 2025Self-discharge in lithium-ion batteries refers to the phenomenon where the battery's charge/voltage naturally decreases when disconnected from an external circuit (i.e., in an open-circuit state). This is an inherent characteristic of all batteries, though the degree varies. Lithium-ion batteries exhibit a relatively low self-discharge rate but are still affected. The primary causes can be categor...read more
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In the pursuit of higher energy density for lithium-ion batteries, silicon-based anodes have emerged as a promising candidate. However, their commercialization is hindered by challenges such as significant volume expansion and, critically, non-uniform lithiation. This article explores the causes, detrimental effects, and advanced solutions to mitigate this issue, a key consideration for anyone inv...read more
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I. Structural Design of Power Battery Systems The structure of a power battery system comprises cells, modules, and battery packs. The cell is the most fundamental unit, and its structural design and material selection are decisive for battery performance. Mainstream cell types currently available include cylindrical, prismatic, and pouch cells, each offering certain advantages in terms of energy ...read more
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Ⅰ. Performance Advantages and Challenges of Silicon-Carbon Anode Materials (1) Electrochemical Characteristics of Silicon In lithium-ion battery anode research, silicon attracts significant attention due to its extremely high theoretical specific capacity. Upon full lithiation, silicon can form alloys with a specific capacity reaching 4200 mAh/g, nearly ten times that of conventional graphite. Thi...read more
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As the global battery industry seeks alternatives to lithium-based chemistries, sodium-ion batteries have steadily moved from academic research into early-stage commercialization. Among various cathode candidates, NFPP (Na₃Fe₂(PO₄)₃) has gained increasing attention due to its balanced performance, structural stability, and supply-chain advantages. Rather than pursuing extreme energy density, NFPP ...read more
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