Lithium supplementing method for the lithium ion battery positive electrode
A lithium-ion battery and positive electrode technology, which is applied in the field of lithium-ion battery positive electrode lithium supplementation, can solve the problems of low initial battery efficiency, improve initial efficiency and battery capacity, avoid dust pollution and safety issues, and increase energy density.
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Embodiment 1
[0015] Example 1: In the positive electrode pulping process, the Li 5 FeO 4 The lithium supplement material is mixed evenly with the main material of lithium cobalt oxide, SUPER-P conductive agent, PVDF binder and NMP solvent, among which Li 5 FeO 4 The amount of lithium cobalt oxide is 2% of the weight of lithium cobalt oxide, and then lithium-ion batteries are made through processes such as coating, rolling, assembly, liquid injection, formation, and volume separation.
Embodiment 2
[0016] Example 2: In the positive electrode pulping process, the Li 5 FeO 4 The lithium supplement material is mixed evenly with the main material of lithium manganese oxide, SUPER-P conductive agent, PVDF binder and NMP solvent, among which Li 5 FeO 4 The amount of lithium manganate is 1% of the weight of lithium manganate, and then the lithium-ion battery is made into a lithium-ion battery through processes such as coating, rolling, assembly, liquid injection, formation, and volume separation.
Embodiment 3
[0017] Example 3: During the positive electrode pulping process, the Li2MnO3-LiNiCoMnO2 lithium supplement material is mixed with the main material of nickel-cobalt lithium manganese oxide, SUPER-P, kS-6 conductive agent, PVDF binder and NMP solvent and other materials, wherein The amount of Li2MnO3-LiNiCoMnO2 is 5% of the weight of nickel-cobalt lithium manganese oxide, and then the lithium-ion battery is made through processes such as coating, rolling, assembly, liquid injection, formation, and volume separation.
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