Title:
SECONDARY BATTERY, MOBILE INFORMATION TERMINAL, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2021/111257
Kind Code:
A1
Abstract:
The present invention provides at least a secondary battery having a structure that enables the secondary battery to withstand high temperatures. The secondary battery uses a positive electrode active material obtained by a production method having: a first step for producing a first mixture by turning each of magnesium fluoride, lithium fluoride, a nickel source, and an aluminum source into a fine powder and subsequently mixing these with a lithium cobalt oxide powder; and a second step for producing a second mixture by performing heating at a temperature lower than the heatproof temperature of the lithium cobalt oxide. LiBOB is added to the electrolytic solution of the secondary battery.
Inventors:
KURIKI KAZUTAKA (JP)
YONEDA YUMIKO (JP)
MIKAMI MAYUMI (JP)
KADOMA HIROSHI (JP)
SUZUKI KUNIHIKO (JP)
YAMAZAKI SHUNPEI (JP)
YONEDA YUMIKO (JP)
MIKAMI MAYUMI (JP)
KADOMA HIROSHI (JP)
SUZUKI KUNIHIKO (JP)
YAMAZAKI SHUNPEI (JP)
Application Number:
PCT/IB2020/061166
Publication Date:
June 10, 2021
Filing Date:
November 26, 2020
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
International Classes:
H01M10/052; H01M4/505; H01M4/525; H01M4/587; H01M10/0525; H01M10/0567; H01M10/0568; H01M10/0569
Domestic Patent References:
| WO2019050282A1 | 2019-03-14 |
Foreign References:
| JP2013164992A | 2013-08-22 | |||
| JP2014532285A | 2014-12-04 | |||
| JP2017069184A | 2017-04-06 | |||
| JP2019179758A | 2019-10-17 | |||
| JP2004103566A | 2004-04-02 |
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