Title:
LITHIUM-CONTAINING METAL OXIDE, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES, AND LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/182153
Kind Code:
A1
Abstract:
A lithium-containing metal oxide containing secondary particles each composed of an aggregate of primary particles, wherein, when a cross-sectional image of each of the secondary particles is obtained and the cross-sectional image is observed, the abundance of reference primary particles in a center part of the secondary particle is 20 to 50% inclusive and the abundance of the reference primary particles in a surface part of the secondary particle is 30 to 100% inclusive.
Inventors:
NAGAO DAISUKE (JP)
KAGEURA JUN-ICHI (JP)
MAEDA YUSUKE (JP)
KAGEURA JUN-ICHI (JP)
MAEDA YUSUKE (JP)
Application Number:
PCT/JP2019/012264
Publication Date:
September 26, 2019
Filing Date:
March 22, 2019
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
TANAKA CHEMICAL CORP (JP)
TANAKA CHEMICAL CORP (JP)
International Classes:
C01G53/00; H01M4/505; H01M4/525
Domestic Patent References:
| WO2016002158A1 | 2016-01-07 | |||
| WO2018020845A1 | 2018-02-01 | |||
| WO2006118279A1 | 2006-11-09 | |||
| WO2016175597A1 | 2016-11-03 | |||
| WO2016002158A1 | 2016-01-07 |
Foreign References:
| JP2018506156A | 2018-03-01 | |||
| JP2017533568A | 2017-11-09 | |||
| US20140158932A1 | 2014-06-12 | |||
| JP2018056857A | 2018-04-05 | |||
| JP2002201028A | 2002-07-16 |
Other References:
See also references of EP 3770121A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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