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:
Jun. 04, 2019
Filed:
Oct. 21, 2008
Hiroyuki Yamaguchi, Fukushima, JP;
Hideki Nakai, Fukushima, JP;
Masayuki Ihara, Fukushima, JP;
Tadahiko Kubota, Kanagawa, JP;
Shigeru Fujita, Fukushima, JP;
Hiroyuki Yamaguchi, Fukushima, JP;
Hideki Nakai, Fukushima, JP;
Masayuki Ihara, Fukushima, JP;
Tadahiko Kubota, Kanagawa, JP;
Shigeru Fujita, Fukushima, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
An anode and a secondary battery capable of improving the charge and discharge efficiency are provided. The anode includes an anode current collector, and an anode active material layer provided on the anode current collector. The anode active material layer has a plurality of anode active material particles containing at least one of a simple substance of silicon, a compound of silicon, a simple substance of tin and a compound of tin, and has a coat containing an oxo acid salt in at least part of the surface of the anode active material particles.