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Title: Methods of applying self-forming artificial solid electrolyte interface (SEI) layer to stabilize cycle stability of electrodes in lithium batteries

Patent ·
OSTI ID:1600366

A method of making a negative electrode for an electrochemical cell includes applying a fluoropolymer via a deposition process to one or more surface regions of an electroactive material. The electroactive material may be selected from the group consisting of: lithium metal, silicon metal, silicon-containing alloys, and combinations thereof. The fluoropolymer reacts with lithium to form a composite surface layer on the one or more surface regions that comprises an organic matrix material having lithium fluoride particles distributed therein. Electrochemical cells including such negative electrode are also provided.

Research Organization:
GM Global Technology Operations LLC, Detroit, MI (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0007787
Assignee:
GM Global Technology Operations LLC (Detroit, MI)
Patent Number(s):
10,497,927
Application Number:
15/692,107
OSTI ID:
1600366
Resource Relation:
Patent File Date: 08/31/2017
Country of Publication:
United States
Language:
English

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