Non-in-situ preparation SEI filmA layer of SEI membranes were prepared from non-in-situ artificial artificial artificial in situ in metallic lithium, and the lithium battery negative electrode was directly in contact with the electrolyte, and the lithium negative electrode was corroded, inhibited the growth of lithium dendrites and certain side reactions. The artificial non-inotiter preparation SEI membrane method is simple and the effect is obvious, and scientific researchers have put a large number of research work in this regard, and various artificial manufactures, such as polyacetylene, tetraethoxysilane, LIPON. SiO2, Li3N, hollow carbon balls, etc. The material is mainly divided into inorganic matter, organic matter and mixture.
3.2.1 Inorganic
The inorganic film is usually highly mechanical strength and better chemical stability, and the lithium can be separated from too much contact with the electrolyte. Fan et al, a layer of LIF film is formed by a magnetron-controlled sputtering method, which has a LIF film, which is preferably insulated, stable chemical composition, adjustable thickness, high lithium diffusion coefficient and high mechanical strength, Effectively inhibits the growth of lithium dendrites, simple method, easy to promote.
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