Title:
ACTIVE MATERIAL FOR SECONDARY BATTERIES
Document Type and Number:
WIPO Patent Application WO/2013/008581
Kind Code:
A1
Abstract:
Provided is an active material for secondary batteries, which has improved lifetime properties. An active material for secondary batteries, comprising: a first active material represented by Lip[M1mM22-m-nM3n]O4 (wherein M1 represents at least one element selected from Ni, Cr, Fe, Co and Cu; M2 represents at least one element selected from Mn, Ti and Si, wherein Mn is contained in M2; M3 represents at least one element selected from Li, B, Mg, Al, Na and Ca; and 0 ≤ p, 0 < m, 0 < n, and m+n < 2); and a second active material represented by Liq[LiaXxZzMn1-a-x-z]O2 (wherein X represents at least one element selected from Ni, Cr, Fe, Co and Cu; Z represents at least one element selected from Al, Mg, B, Si, Na, Ca and Ti; and 0 ≤ q, 0 < a, 0 < x, 0 ≤ z, and a+x+z < 1).
Inventors:
NOGUCHI TAKEHIRO (JP)
SASAKI HIDEAKI (JP)
UEHARA MAKIKO (JP)
KATOU YUUKOU (JP)
SASAKI HIDEAKI (JP)
UEHARA MAKIKO (JP)
KATOU YUUKOU (JP)
Application Number:
PCT/JP2012/065309
Publication Date:
January 17, 2013
Filing Date:
June 15, 2012
Export Citation:
Assignee:
NEC CORP (JP)
NOGUCHI TAKEHIRO (JP)
SASAKI HIDEAKI (JP)
UEHARA MAKIKO (JP)
KATOU YUUKOU (JP)
NOGUCHI TAKEHIRO (JP)
SASAKI HIDEAKI (JP)
UEHARA MAKIKO (JP)
KATOU YUUKOU (JP)
International Classes:
H01M4/505; H01M4/36; H01M4/38; H01M4/485; H01M4/525; H01M4/587; H01M10/052
Foreign References:
| JP2005085720A | 2005-03-31 | |||
| JP2003229130A | 2003-08-15 | |||
| JP2000323140A | 2000-11-24 | |||
| JP2001068109A | 2001-03-16 |
Attorney, Agent or Firm:
MIYAZAKI, Teruo et al. (JP)
Akio Miyazaki (JP)
Akio Miyazaki (JP)
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Claims: