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Title: Method for making a battery

Patent ·
OSTI ID:1531616
;

A method for coating an active material with carbon to form an electrode material is disclosed, comprising: exposing olivine or nasicon to a carbon source gas in a furnace; and heating the carbon source gas to deposit carbon thereon. The carbon source gas, which may be mixed with an inert gas, generally decomposes between 100° C. and 1300° C. to generate carbon material. The amount of coated carbon on the olivine or nasicon is preferably <15 wt %, and more preferably about 4 wt % or less. Also disclosed is a battery comprising: a positive electrode comprising the inventive electrode material; a negative electrode; and an electrolyte.

Research Organization:
Quallion LLC, Sylmar, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-31-109-ENG-38
Assignee:
Quallion LLC (Sylmar, CA)
Patent Number(s):
7,632,317
Application Number:
10/612,439
OSTI ID:
1531616
Resource Relation:
Patent File Date: 2003-07-01
Country of Publication:
United States
Language:
English

References (17)

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Negative active material for rechargeable lithium battery and method of preparing same patent July 2003

Cited By (3)

Surface treatment of electrochemically active materials for rechargeable cells patent June 2015
Alkali metal oxyanion electrode material having a carbon deposited by pyrolysis and process for making same patent September 2017
Positive electrode active material, preparation method thereof, and lithium battery including the same patent March 2017

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