Title:
NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE, LITHIUM ION SECONDARY CELL, METHOD FOR MANUFACTURING NEGATIVE ELECTRODE ACTIVE MATERIAL, AND METHOD FOR MANUFACTURING LITHIUM ION SECONDARY CELL
Document Type and Number:
WIPO Patent Application WO/2018/074053
Kind Code:
A1
Abstract:
The present invention is a negative electrode active material that contains negative electrode active material particles, the negative electrode active material characterized in that the negative electrode active material particles contain a silicon compound represented by SiOx (0.5 ≤ x ≤ 1.6), and in a XANES spectrum obtained from a XANES measurement of the negative electrode active material particles, the peak is in a range of 539-541 eV. As a result, provided is a negative electrode active material that, when used as the negative electrode active material of a secondary cell, is able to increase cell capacity and improve cycle characteristics.
Inventors:
HIROSE TAKAKAZU (JP)
SAKAI REIKO (JP)
SAKAI REIKO (JP)
Application Number:
PCT/JP2017/030123
Publication Date:
April 26, 2018
Filing Date:
August 23, 2017
Export Citation:
Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
H01M4/48; C01B33/113; H01M4/36
Foreign References:
| JP2007242590A | 2007-09-20 | |||
| JP2009224145A | 2009-10-01 | |||
| JP2015156355A | 2015-08-27 |
Other References:
See also references of EP 3531482A4
Attorney, Agent or Firm:
YOSHIMIYA Mikio et al. (JP)
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