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Title: Surface protected lithium-metal-oxide electrodes

A lithium-metal-oxide positive electrode having a layered or spinel structure for a non-aqueous lithium electrochemical cell and battery is disclosed comprising electrode particles that are protected at the surface from undesirable effects, such as electrolyte oxidation, oxygen loss or dissolution by one or more lithium-metal-polyanionic compounds, such as a lithium-metal-phosphate or a lithium-metal-silicate material that can act as a solid electrolyte at or above the operating potential of the lithium-metal-oxide electrode. The surface protection significantly enhances the surface stability, rate capability and cycling stability of the lithium-metal-oxide electrodes, particularly when charged to high potentials.
Authors:
;
Publication Date:
OSTI Identifier:
1248481
Report Number(s):
9,306,210
14/326,845
DOE Contract Number:
W-31-109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Jul 09
Research Org:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; 30 DIRECT ENERGY CONVERSION