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:
Oct. 15, 2019
Filed:
Aug. 27, 2014
Kabushiki Kaisha Toyota Jidoshokki, Kariya-shi, Aichi, JP;
Takeshi Kondo, Kariya, JP;
Yusuke Sugiyama, Kariya, JP;
Takashi Mohri, Kariya, JP;
Hiroki Oshima, Kariya, JP;
Tomohiro Niimi, Kariya, JP;
Mutsumi Takahashi, Kariya, JP;
Nobuhiro Goda, Kariya, JP;
Takahiro Sugioka, Kariya, JP;
Yuta Kawamoto, Kariya, JP;
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya-shi, Aichi, JP;
Abstract
Cycle characteristics of a nonaqueous secondary battery are to be improved. An active material including: a first active material that contains a nano silicon produced by heating a layered polysilane represented by a composition formula (SiH)and having a structure in which multiple six-membered rings formed from silicon atoms are connected; and a second active material that contains a graphite, is used in a negative electrode. With this, expansion and contraction due to stress during charging and discharging can be mitigated, and thereby cycle characteristics improve.