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:
Nov. 05, 2019
Filed:
Dec. 02, 2015
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Kenji Essaki, Kanagawa-ken, JP;
Takayuki Fukasawa, Kanagawa-ken, JP;
Miho Muramatsu, Kanagawa-ken, JP;
Tomokazu Morita, Chiba-ken, JP;
Takashi Kuboki, Tokyo, JP;
Yumiko Kita, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Abstract
An active material for a nonaqueous electrolyte battery according to the embodiment is a composite including at least: a carbonaceous substance; and silicon-containing particles dispersed in the carbonaceous substance, the silicon-containing particles including at least one of silicon, a silicon alloy and a silicon oxide, wherein in an argon ion laser Raman spectrum, the half-width (ΔG) of a peak having a maximum intensity Iin the range of 1575 cmor more and 1625 cmor less is 100 cmor more and 150 cmor less, and the intensity ratio of a peak having a maximum intensity Iin the range of 500 cmor more and 550 cmor less to the peak having the maximum intensity Iin the range of 1575 cmor more and 1625 cmor less (I/I) is 0.25 or more and 0.50 or less.