Title:
NEGATIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERIES, AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/129652
Kind Code:
A1
Abstract:
The present invention relates to a negative electrode active material for secondary batteries, which comprises silicate composite particles each containing a silicate phase, silicon particles that are dispersed in the silicate phase, and a carbon phase, and which is configured such that: the silicate phase contains at least one element that is selected from the group consisting of alkali metals and alkaline earth metals; and at least a part of the carbon phase covers at least parts of the surfaces of the silicon particle.
Inventors:
SATO YOSUKE
UCHIYAMA YOHEI
ASANO TAISUKE
UCHIYAMA YOHEI
ASANO TAISUKE
Application Number:
PCT/JP2019/047480
Publication Date:
June 25, 2020
Filing Date:
December 04, 2019
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
C01B33/02; H01M4/36; H01M4/38; H01M4/58
Domestic Patent References:
| WO2016035290A1 | 2016-03-10 | |||
| WO2016121321A1 | 2016-08-04 | |||
| WO2015145521A1 | 2015-10-01 | |||
| WO2018042361A1 | 2018-03-08 |
Foreign References:
| JP2007059213A | 2007-03-08 | |||
| JP2013161705A | 2013-08-19 | |||
| CN103400971A | 2013-11-20 |
Attorney, Agent or Firm:
KAWASAKI, HASHIMOTO AND PARTNERS (JP)
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