Does Lithium iron phosphate battery use aluminum foil
Release time:
Jul 14,2023
Aluminum foil is commonly used for lithium iron batteries. For lithium-ion batteries, the positive current collector is aluminum foil, and the negative current collector is copper foil. To ensure the stability of the current collector inside the battery, the purity of both is required to be above 98%.
A conductive coating is composed of dispersed nano conductive graphite coated particles, etc. It can provide excellent static conductivity and is a protective energy absorbing layer. It can also provide good covering and protective performance. The coating is water-based and solvent based, and can be applied to aluminum sheets, copper sheets, stainless steel, aluminum and titanium bipolar plates.
Carbon coated aluminum foil can improve the performance of Lithium iron phosphate battery as follows
1. Reduce the internal resistance of the battery and suppress the dynamic internal resistance increase during the charging and discharging cycle;
2. Significantly improve the consistency of battery packs and reduce battery pack costs;
3. Improve the adhesion between active materials and fluid collectors, and reduce the manufacturing cost of electrode plates;
4. Reduce polarization, improve magnification performance, and reduce thermal effects;
5. Prevent electrolyte from corroding the collector fluid;
6. Integrating factors to extend battery life;
7. Coating thickness: Conventional single-sided thickness 1-3um.
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