What is the material of lithium battery separator?
Lithium-ion battery separator , in the structure of lithium battery, the separator is one of the key inner components. For the lithium battery series, since the electrolyte is an organic solvent system, a diaphragm material resistant to organic solvents is required, and a high-strength thin-film polyolefin porous film is generally used. 1. Performance of lithium-ion battery separator products Since the performance of the lithium-ion battery separator determines the key characteristics of the lithium-ion battery, such as capacity, cycle performance , and charge-discharge current density, the separator is required to have appropriate thickness, ion transmission rate, pore size and porosity, and sufficient chemical stability. performance, thermal stability and mechanical stability. Lithium-ion battery separator has a large number of zigzag through micropores, which can ensure the free passage of electrolyte ions to form a charge-discharge circuit; when the battery is overch...
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