Title:
NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK AND BATTERY SYSTEM
Document Type and Number:
Japanese Patent JP2017204452
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery which enables the materialization of a battery system capable of showing a high energy density and superior charge/discharge cycle characteristics.SOLUTION: A nonaqueous electrolyte battery 1 is provided according to an embodiment, which comprises: a positive electrode 6; a negative electrode 7; and a nonaqueous electrolyte. The positive electrode 6 has a positive electrode layer 62 including a positive electrode active material. The positive electrode active material has a spinel type crystal structure, and includes an aluminum-containing lithium manganate represented by the following general formula: LiMnAlMO. In the positive electrode layer 62, the content of the positive electrode active material is 91 wt% or more and less than 96 wt% to a weight of the positive electrode layer 62. In the nonaqueous electrolyte battery, the proportion of a capacity C2 to a capacity C1 is 92 to 99%, where the capacity C1 is a charging capacity when the nonaqueous electrolyte battery 1 is charged from a voltage of 1.5 V to a voltage of 3 V, and the capacity C2 is a charging capacity when the nonaqueous electrolyte battery 1 is charged from 2.3 V to 2.7 V.SELECTED DRAWING: Figure 1
Inventors:
YOSHIKAWA TERU
MURASHI YASUAKI
NISHIO NAOMI
YAJIMA TORU
MURASHI YASUAKI
NISHIO NAOMI
YAJIMA TORU
Application Number:
JP2016097340A
Publication Date:
November 16, 2017
Filing Date:
May 13, 2016
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
H01M10/052; H01M2/10; H01M4/131; H01M4/485; H01M4/505; H01M4/525; H01M10/0525; H01M10/44; H01M16/00
Domestic Patent References:
| JP2012094460A | 2012-05-17 | |||
| JP2007294164A | 2007-11-08 | |||
| JP2007273405A | 2007-10-18 | |||
| JP2013041844A | 2013-02-28 | |||
| JP2012190569A | 2012-10-04 |
Foreign References:
| WO2013108841A1 | 2013-07-25 | |||
| WO2014142078A1 | 2014-09-18 | |||
| US20150050527A1 | 2015-02-19 |
Attorney, Agent or Firm:
Kurata Masatoshi
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Tadashi Inoue
Ukai Ken
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Tadashi Inoue
Ukai Ken
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