The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 2010
Filed:
Mar. 22, 2007
Mikio Aramata, Annaka, JP;
Koichiro Watanabe, Annaka, JP;
Satoru Miyawaki, Annaka, JP;
Meguru Kashida, Annaka, JP;
Hirofumi Fukuoka, Annaka, JP;
Mikio Aramata, Annaka, JP;
Koichiro Watanabe, Annaka, JP;
Satoru Miyawaki, Annaka, JP;
Meguru Kashida, Annaka, JP;
Hirofumi Fukuoka, Annaka, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
A silicon-silicon oxide-lithium composite comprises a silicon-silicon oxide composite having such a structure that silicon grains having a size of 0.5-50 nm are dispersed in silicon oxide, the silicon-silicon oxide composite being doped with lithium. Using the silicon-silicon oxide-lithium composite as a negative electrode material, a lithium ion secondary cell having a high initial efficiency and improved cycle performance can be constructed.