Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND ELECTRICITY STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/039120
Kind Code:
A1
Abstract:
A positive electrode active material for nonaqueous electrolyte secondary batteries containing a lithium transition metal composite oxide, wherein: the lithium transition metal complex oxide has an α-NaFeO2 structure, contains Ni, Co and Mn as transition metals (Me), has an X-ray diffraction pattern which can be attributed to the space group R3-m, and has a crystallite size of 410 Å or more; and with respect to the lithium transition metal complex oxide, the ratio of the half-width of the diffraction peak of the (003) plane to the half-width of the diffraction peak of the (104) plane at the Miller index hkl by X-ray diffraction measurement using CuKα rays is from 0.810 to 0.865.
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Inventors:
YOSHIKAWA DAISUKE (JP)
OTANI SHINYA (JP)
OTANI SHINYA (JP)
Application Number:
PCT/JP2020/026198
Publication Date:
March 04, 2021
Filing Date:
July 03, 2020
Export Citation:
Assignee:
GS YUASA INT LTD (JP)
International Classes:
C01G53/00; H01M4/525
Domestic Patent References:
| WO2017104736A1 | 2017-06-22 | |||
| WO2012133113A1 | 2012-10-04 | |||
| WO2017104688A1 | 2017-06-22 |
Foreign References:
| JP2014203509A | 2014-10-27 | |||
| JP2018041657A | 2018-03-15 | |||
| JP2018206609A | 2018-12-27 | |||
| JP2019149371A | 2019-09-05 |
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