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Title: High valent lithiated surface structures for lithium ion battery electrode materials

Abstract

The surface of a lithium ion cathode material (e.g., a lithium metal oxide material capable of releasing and accepting lithium ions during charging and discharging, respectively, of a lithium ion electrochemical cell) is coated with a lithium metal oxide (LMO) material comprising a high-valent metal to, inter alia, reduce interfacial resistance toward lithium exchange. Li-rich phases on the surface of the treated LMO particles allow for better lithium ion diffusion. The inclusion of elements that form phases with lithium and can substitute in the host structure allow for mixing across interfaces leading to more robust structures that better mimic epitaxial-type layers. Inclusion of doping elements in place of some of the high-valent metal in the surface-treating composition provides unexpectedly improved performance over surface treatments comprising lithium metal oxides that only include a high-valent metal.

Inventors:
; ;
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1576264
Patent Number(s):
10431820
Application Number:
15/645,678
Assignee:
UChicago Argonne, LLC (Chicago, IL)
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:  
AC02-06CH11357
Resource Type:
Patent
Resource Relation:
Patent File Date: 2017 Jul 10
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Croy, Jason, Balasubramanian, Mahalingam, and Park, Joong Sun. High valent lithiated surface structures for lithium ion battery electrode materials. United States: N. p., 2019. Web.
Croy, Jason, Balasubramanian, Mahalingam, & Park, Joong Sun. High valent lithiated surface structures for lithium ion battery electrode materials. United States.
Croy, Jason, Balasubramanian, Mahalingam, and Park, Joong Sun. Tue . "High valent lithiated surface structures for lithium ion battery electrode materials". United States. https://www.osti.gov/servlets/purl/1576264.
@article{osti_1576264,
title = {High valent lithiated surface structures for lithium ion battery electrode materials},
author = {Croy, Jason and Balasubramanian, Mahalingam and Park, Joong Sun},
abstractNote = {The surface of a lithium ion cathode material (e.g., a lithium metal oxide material capable of releasing and accepting lithium ions during charging and discharging, respectively, of a lithium ion electrochemical cell) is coated with a lithium metal oxide (LMO) material comprising a high-valent metal to, inter alia, reduce interfacial resistance toward lithium exchange. Li-rich phases on the surface of the treated LMO particles allow for better lithium ion diffusion. The inclusion of elements that form phases with lithium and can substitute in the host structure allow for mixing across interfaces leading to more robust structures that better mimic epitaxial-type layers. Inclusion of doping elements in place of some of the high-valent metal in the surface-treating composition provides unexpectedly improved performance over surface treatments comprising lithium metal oxides that only include a high-valent metal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {10}
}

Patent:

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