Title:
NEGATIVE ELECTRODE ACTIVE SUBSTANCE FOR SECONDARY BATTERY, AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/151016
Kind Code:
A1
Abstract:
A negative electrode active substance for a secondary battery, which is one embodiment of the present disclosure, comprises: a silicate phase 11 which contains Li, Si and Mx (Mx is an alkali metal, an alkaline earth metal or an element other than Si); silicon particles 12 dispersed in the silicate phase 11; and metal particles 15 which are dispersed in the silicate phase 11 and are constituted mainly from one or more metals selected from among Fe, Cr, Ni, Mn, Cu, Mo, Zn and Al or an alloy of these. In the silicate phase, the content of the following elements, relative to the total amount of elements other than oxygen, is: 3-45 mol% of Li; 40-78 mol% of Si; and 1-40 mol% of Mx.
Inventors:
AKIRA TATSUYA
UCHIYAMA YOHEI
YAMAMOTO NORIHISA
UCHIYAMA YOHEI
YAMAMOTO NORIHISA
Application Number:
PCT/JP2019/001662
Publication Date:
August 08, 2019
Filing Date:
January 21, 2019
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M4/38; H01M4/36; H01M4/48
Domestic Patent References:
| WO2016121320A1 | 2016-08-04 | |||
| WO2016121323A1 | 2016-08-04 | |||
| WO2017051500A1 | 2017-03-30 | |||
| WO2016136180A1 | 2016-09-01 | |||
| WO2018179969A1 | 2018-10-04 | |||
| WO2018179970A1 | 2018-10-04 |
Foreign References:
| JP2011233245A | 2011-11-17 |
Other References:
See also references of EP 3748738A4
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)
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