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2、 Negative electrode
Lithium ion battery negative electrode materials grasp the safety lifeline of power lithium batteries. In addition to a small market share of graphitized mesophase carbon microspheres (MCMB), amorphous carbon, silicon or tin, natural graphite and artificial graphite account for over 90% of the negative electrode material market share in lithium-ion battery negative electrode materials.
The negative electrode material contains active substances, adhesives, solvents, substrates, and other substances.
3、 Diaphragm
The important use of separators is to separate the positive and negative electrodes of batteries, prevent short circuits caused by contact between the two poles, and also have the function of allowing electrolyte ions to pass through.
The most important market-oriented diaphragm materials are polyolefin membranes, mainly composed of polyethylene (PE) and polypropylene (PP). PE products are mainly produced by wet process, while PP products are mainly produced by dry process.
4、 Electrolyte
The electrolyte of lithium-ion batteries is the carrier for ion transport in batteries. Generally composed of lithium salts and organic solvents. Electrolyte plays a role in conducting ions between the positive and negative electrodes of lithium-ion batteries, ensuring the advantages of high voltage and high specific energy of lithium-ion batteries.
Electrolytes are generally prepared from high-purity organic solvents, electrolyte lithium salts, necessary additives, and other raw materials under certain conditions and in a certain proportion.
5、 Shell
The shell of a lithium-ion battery includes hardware components such as steel shell, aluminum shell, cover plate, pole ear, insulation tape, etc.
Production and processing process of lithium-ion batteries
The production and processing process of lithium-ion batteries is not very consistent among each manufacturer, but most of them cannot do without these links
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