Title:
PROCESS FOR PRODUCTION OF IRON SULFIDE/LITHIUM COMPOSITE
Document Type and Number:
WIPO Patent Application WO/2010/084808
Kind Code:
A1
Abstract:
Provided is a process for production of an iron sulfide/lithium composite containing at least 50mol% of either Li3Fe2S4 and/or Li2.33Fe0.67S2, which is characterized by subjecting a raw material consisting of a sulfur-containing compound, an iron-containing compound, and a lithium-containing compound to heat treatment in a moisture-free and non-oxidizing atmosphere according to an electric current sintering method. Also provided is a positive electrode active material for a lithium secondary battery, which consists of an iron sulfide/lithium composite obtained by the process.
According to the process, a lithium-containing metal sulfide such as Li3Fe2S4 or Li2.33Fe0.67S2, or a composite containing the same can be easily and efficiently produced in a short time.
Inventors:
TAKEUCHI TOMONARI (JP)
SAKAEBE HIKARI (JP)
SAKAI TETSUO (JP)
SENOH HIROSHI (JP)
TATSUMI KUNIAKI (JP)
SAKAEBE HIKARI (JP)
SAKAI TETSUO (JP)
SENOH HIROSHI (JP)
TATSUMI KUNIAKI (JP)
Application Number:
PCT/JP2010/050293
Publication Date:
July 29, 2010
Filing Date:
January 13, 2010
Export Citation:
Assignee:
NAT INST OF ADVANCED IND SCIEN (JP)
TAKEUCHI TOMONARI (JP)
SAKAEBE HIKARI (JP)
SAKAI TETSUO (JP)
SENOH HIROSHI (JP)
TATSUMI KUNIAKI (JP)
TAKEUCHI TOMONARI (JP)
SAKAEBE HIKARI (JP)
SAKAI TETSUO (JP)
SENOH HIROSHI (JP)
TATSUMI KUNIAKI (JP)
International Classes:
C01G49/00; H01M4/58
Foreign References:
JP2003502265A | 2003-01-21 | |||
JP2004522674A | 2004-07-29 |
Other References:
"Abstracts of Meeting of Japan Society of Powder and Powder Metallurgy Heisei 20 Nendo Shunki Taikai, 27 May 2008 (27.05.2008)", article TOMONARI TAKEUCHI ET AL.: "Tsuden Shoketsu Process o Mochiita Kinzoku Ryukabutsu no Sakusei to sono Denchi Tokusei", pages: 198
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
Patent business corporation 3 Edakuni [Hajime] patent firm (JP)
Patent business corporation 3 Edakuni [Hajime] patent firm (JP)
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