Title:
POSITIVE ELECTRODE, CELL, CELL PACK, ELECTRONIC DEVICE, ELECTRIC VEHICLE, ELECTRIC STORAGE DEVICE, AND ELECTRIC POWER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/198521
Kind Code:
A1
Abstract:
In the present invention, a positive electrode contains a first active material and a second active material. The first active material and the second active material contain a lithium composite oxide that contains at least manganese (Mn), nickel (Ni), and cobalt (Co) as transition metals. The first active material assumes a particulate configuration. The interparticle voidage (V1) of the first active material is 10[%]≤V1≤30[%]. The average particle diameter (D1) of the first active material is 6 [μm]≤D1≤20 [μm]. The second active material assumes a particulate configuration. The interparticle voidage (V2) of the second active material is 0[%]≤V2≤10[%]. The average particle diameter (D2) of the second active material is 1 [μm]≤D2≤6 [μm].
Inventors:
ENDOH KAZUAKI (JP)
MOTOHASHI KAZUNARI (JP)
HAYASHI NAOKI (JP)
MOTOHASHI KAZUNARI (JP)
HAYASHI NAOKI (JP)
Application Number:
PCT/JP2015/002479
Publication Date:
December 30, 2015
Filing Date:
May 18, 2015
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
H01M4/1391; B60L50/64; H01M4/131; H01M4/36; H01M4/38; H01M4/48; H01M4/505; H01M4/525; H01M10/052
Domestic Patent References:
| WO2013191179A1 | 2013-12-27 |
Foreign References:
| JP2009110942A | 2009-05-21 | |||
| JP2013065468A | 2013-04-11 | |||
| JP2015026594A | 2015-02-05 |
Attorney, Agent or Firm:
SUGIURA, Masatomo et al. (JP)
Masatomo Sugiura (JP)
Masatomo Sugiura (JP)
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