25-07-2023 дата публикации
Номер: CN116487818A
Принадлежит:
The invention particularly discloses a lithium battery SEI film stabilizing method and application thereof. The invention relates to a lithium battery SEI membrane stabilizing method, which comprises: 1, mixing an aromatic hydrocarbon and an ether solvent to obtain a solution A; 2, metal lithium and the solution A are mixed, and a solution B is obtained after the metal lithium is completely dissolved; step 3, soaking a graphite negative electrode plate in the solution B, taking out the soaked graphite negative electrode plate, cleaning and drying to obtain a pre-lithiated graphite negative electrode plate; step 4, placing the pre-lithiated graphite negative electrode plate in dry air, and generating an inorganic substance layer on the surface of the pre-lithiated graphite negative electrode plate to obtain a pre-treated graphite negative electrode plate; and assembling the pretreated graphite pole piece in a lithium battery, performing liquid injection packaging on the lithium battery, ...
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