Title:
NEGATIVE ELECTRODE ACTIVE SUBSTANCE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING NEGATIVE ELECTRODE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2018206574
Kind Code:
A
Abstract:
To provide a negative electrode active substance for a nonaqueous electrolyte secondary battery, which is high in the stability to an aqueous slurry, and has a high capacity and good cycle characteristics and a satisfactory initial efficiency.SOLUTION: A negative electrode active substance for a nonaqueous electrolyte secondary battery comprises a negative electrode active substance particles. The negative electrode active substance particles include silicon compound particles containing a silicon compound (SiO, where 0.5≤x≤1.6). The silicon compound particles include a Li compound. The silicon compound particles are at least partially covered with a carbon material. The surface of the silicon compound particles or the surface of the carbon material, or each of them is partially covered with a layer including a compound having a silyl group.SELECTED DRAWING: Figure 1
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Inventors:
TAKAHASHI KOTA
HIROSE KIICHI
MATSUNO TAKUMI
HIROSE KIICHI
MATSUNO TAKUMI
Application Number:
JP2017109785A
Publication Date:
December 27, 2018
Filing Date:
June 02, 2017
Export Citation:
Assignee:
SHINETSU CHEMICAL CO
International Classes:
H01M4/48; H01M4/36
Domestic Patent References:
| JP2016207446A | 2016-12-08 | |||
| JP2004178917A | 2004-06-24 | |||
| JP2014026984A | 2014-02-06 | |||
| JP2017010645A | 2017-01-12 | |||
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| JP2014002956A | 2014-01-09 |
Foreign References:
| WO2014007027A1 | 2014-01-09 | |||
| WO2017051500A1 | 2017-03-30 |
Attorney, Agent or Firm:
Mikio Yoshimiya
Toshihiro Kobayashi
Toshihiro Kobayashi