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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

Abstract

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.

Inventors:
Issue Date:
Research Org.:
GM Global Technology Operations LLC, Detroit, MI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1600366
Patent Number(s):
10497927
Application Number:
15/692,107
Assignee:
GM Global Technology Operations LLC (Detroit, MI)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
EE0007787
Resource Type:
Patent
Resource Relation:
Patent File Date: 08/31/2017
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE

Citation Formats

Xiao, Xingcheng. Methods of applying self-forming artificial solid electrolyte interface (SEI) layer to stabilize cycle stability of electrodes in lithium batteries. United States: N. p., 2019. Web.
Xiao, Xingcheng. Methods of applying self-forming artificial solid electrolyte interface (SEI) layer to stabilize cycle stability of electrodes in lithium batteries. United States.
Xiao, Xingcheng. Tue . "Methods of applying self-forming artificial solid electrolyte interface (SEI) layer to stabilize cycle stability of electrodes in lithium batteries". United States. https://www.osti.gov/servlets/purl/1600366.
@article{osti_1600366,
title = {Methods of applying self-forming artificial solid electrolyte interface (SEI) layer to stabilize cycle stability of electrodes in lithium batteries},
author = {Xiao, Xingcheng},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {12}
}

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