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:
Apr. 25, 2017
Filed:
Apr. 23, 2009
Takakazu Hirose, Fukushima, JP;
Kenichi Kawase, Fukushima, JP;
Tomoo Takada, Fukushima, JP;
Kazunori Noguchi, Fukushima, JP;
Takayuki Fujii, Fukushima, JP;
Takakazu Hirose, Fukushima, JP;
Kenichi Kawase, Fukushima, JP;
Tomoo Takada, Fukushima, JP;
Kazunori Noguchi, Fukushima, JP;
Takayuki Fujii, Fukushima, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
A secondary battery capable of improving the cycle characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. The anode has an anode structure on an anode current collector. The anode structure has a structure in which a plurality of anode active material particles having silicon are held by a plurality of metal fibers forming a three-dimensional network structure. Due to the plurality of metal fibers, sufficient conductive paths are obtained among the plurality of anode active material particles. Thus, compared to a general anode in which an active material layer is provided on a current collector made of a metal foil or the like, the current collectivity is improved.