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Title: Production of battery grade materials via an oxalate method

Patent ·
OSTI ID:1253338

An active electrode material for electrochemical devices such as lithium ion batteries includes a lithium transition metal oxide which is free of sodium and sulfur contaminants. The lithium transition metal oxide is prepared by calcining a mixture of a lithium precursor and a transition metal oxalate. Electrochemical devices use such active electrodes.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-06CH11357
Assignee:
UCHICAGO ARGONNE, LLC (Chicago, IL)
Patent Number(s):
9,343,738
Application Number:
14/172,317
OSTI ID:
1253338
Resource Relation:
Patent File Date: 2014 Feb 04
Country of Publication:
United States
Language:
English

References (3)

Process for preparing a positive electrode active material for a nonaqueous secondary battery by forming an oxalate precipitate patent February 2002
Lithium secondary battery patent-application June 2006
Battery patent-application October 2006

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