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Patent Searching and Data


Title:
NON-AQUEOUS ELECTROLYTE CELL AND BATTERY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/158724
Kind Code:
A1
Abstract:
According to one embodiment of the present invention, a non-aqueous electrolyte cell that is provided with a positive electrode, a negative electrode, and a non-aqueous electrolyte is provided. The positive electrode includes a positive-electrode active material layer. The positive-electrode active material layer contains lithium-nickel-cobalt-manganese composite oxide. The negative electrode includes a negative-electrode active material layer. The negative-electrode active material layer contains spinel-type lithium titanate. The non-aqueous electrolyte has an ion conductivity of 7-10 mS/cm at 25°C. The capacity ratio p/n is within the range of 1.4-1.8. The thickness ratio Tp/Tn is equal to or more than 1.05 but less than 1.3. The ratio Pp/Pn is equal to or more than 0.55 but less than 0.8.

Inventors:
YAMAMOTO DAI (JP)
WATANABE YUKI (JP)
KANO TETSURO (JP)
NEGISHI NOBUYASU (JP)
SARUWATARI HIDESATO (JP)
Application Number:
PCT/JP2016/058150
Publication Date:
September 21, 2017
Filing Date:
March 15, 2016
Export Citation:
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Assignee:
TOSHIBA KK (JP)
International Classes:
H01M2/02; H01M4/525; H01M4/131; H01M4/485; H01M4/505; H01M10/052; H01M10/0569; H01M16/00
Domestic Patent References:
WO2015041167A12015-03-26
WO2015029084A12015-03-05
Foreign References:
JP2014110228A2014-06-12
JP2004171955A2004-06-17
JP2002203602A2002-07-19
JP2007087909A2007-04-05
JP2006108113A2006-04-20
Other References:
See also references of EP 3432393A4
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (JP)
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