Title:
A manufacturing method of silicon content particles, a manufacturing method of the cathode material of a nonaqueous electrolyte secondary battery, and a manufacturing method of a nonaqueous electrolyte secondary battery
Document Type and Number:
Japanese Patent JP6006662
Kind Code:
B2
Abstract:
The present invention is directed to a silicon-containing particle for use as a negative-electrode active material of a non-aqueous electrolyte secondary battery, wherein a crystal grain size is 300 nm or less, the crystal grain size being obtained by a Scherrer method from a full width at half maximum of a diffraction line attributable to Si (111) and near 2¸=28.4° in an x-ray diffraction pattern analysis, and a true density is more than 2.320 g/cm 3 and less than 3.500 g/cm 3 . The invention provides silicon-containing particles for use as a negative-electrode active material of a non-aqueous electrolyte secondary battery that enable manufacture of a non-aqueous electrolyte secondary battery having an excellent cycle characteristics and a higher capacity compared with graphite types.
Inventors:
Nakanishi Tetsuo
Taniguchi
Yamada Yoshimasu
Taniguchi
Yamada Yoshimasu
Application Number:
JP2013042840A
Publication Date:
October 12, 2016
Filing Date:
March 05, 2013
Export Citation:
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classes:
H01M4/38; H01M4/134; H01M4/62
Domestic Patent References:
| JP2012009421A | ||||
| JP2012178344A | ||||
| JP2011222151A |
Attorney, Agent or Firm:
Mikio Yoshimiya