Title:
A silicon oxide particle, a manufacturing method for the same, a rechargeable lithium-ion battery, and an electrochemical capacitor
Document Type and Number:
Japanese Patent JP6020331
Kind Code:
B2
Abstract:
Silicon oxide particles each comprising an inner portion having an iron content of 10-1,000 ppm and an outer portion having an iron content of up to 30 ppm are suitable as negative electrode active material in nonaqueous electrolyte secondary batteries. Using a negative electrode comprising the silicon oxide particles as active material, a lithium ion secondary battery or electrochemical capacitor having a high capacity and improved cycle performance can be constructed.
Inventors:
Hirofumi Fukuoka
Susumu Ueno
Koichiro Watanabe
Susumu Ueno
Koichiro Watanabe
Application Number:
JP2013090115A
Publication Date:
November 02, 2016
Filing Date:
April 23, 2013
Export Citation:
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classes:
H01M4/48; H01G11/46
Domestic Patent References:
| JP2011142021A | ||||
| JP2004349057A | ||||
| JP2011233497A | ||||
| JP2011192453A |
Foreign References:
| US20100243964 |
Attorney, Agent or Firm:
Takashi Kojima
Saori Shigematsu
Katsunari Kobayashi
Takeshi Ishikawa
Katsuhiko Masaki
Saori Shigematsu
Katsunari Kobayashi
Takeshi Ishikawa
Katsuhiko Masaki