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How does the negative electrode of a lithium battery react with the electrolyte?

by：Vglory 2021-03-29

The reaction between the negative electrode of the lithium battery and the electrolyte 1. The structure of the carbon negative electrode is destroyed, and the reaction that occurs will cause the structure of the carbon material to change. 2. The surface of the carbon material is protected, that is, a passivation film or SEI film is formed on the surface of the carbon negative electrode (Solidelectrolyteinterface) Three different reaction changes of the electrolyte to the negative electrode carbon. The reaction of the negative electrode of the lithium battery and the electrolyte reduces the destruction and protects the solvated lithium ions directly into the carbon material layer through the electrode/electrolyte liquid interface. The solvent molecules of the intercalation layer are reduced and analyzed at a lower potential to generate lithium salts and precipitate between the graphite layers. At the same time, a large amount of gas is generated, which causes the carbon material structure to delaminate and solvate. The lithium ions also obtain electrons on the surface of the carbon negative electrode and undergo reduction analysis reactions In this process, lithium salt and gas are also generated, but the generated lithium salt dielectric will be deposited on the surface of the carbon negative electrode to form a passivation film to prevent solvent embedding and reduction. Statement: Some pictures and content of articles published on this site are from the Internet, if any Infringement, please contact to delete the previous article: How to evaluate the safety of lithium battery ARC?

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