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. 29, 2016
Filed:
Jun. 03, 2015
Sony Corporation, Tokyo, JP;
Takaaki Matsui, Fukushima, JP;
Aya Mashiko, Fukushima, JP;
Tadashi Matsushita, Fukushima, JP;
Takehiko Ishii, Fukushima, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
A battery comprising a positive electrode; a negative electrode including a negative electrode active material layer that is formed on at least one surface of a negative electrode collector; and an electrolyte, wherein in the negative electrode active material layer from the negative electrode collector up to ½ of a layer thickness in a surface direction of the negative electrode active material layer, a pore volume ratio expressed as (pore volume B/pore volume A) that is a ratio of a pore volume A (ml/g) in a range of 0.001 μm or more and 0.4 μm or less of a pore diameter measured by a mercury porosimeter and a pore volume B (ml/g) in a range of 0.4 μm or more and 10 μm or less of the pore diameter is 1.4 or more and 3.4 or less.