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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.:

US 10374205 B1

PDFFull Text
Date of Patent:
Aug. 06, 2019

Filed:

Mar. 08, 2016

Nonaqueous electrolyte secondary battery

Applicant:

Sanyo Electric Co., Ltd., Daito-shi, Osaka, JP;

Inventors:

Fumiharu Niina, Hyogo, JP;

Daisuke Nishide, Hyogo, JP;

Atsushi Fukui, Hyogo, JP;

Assignee:

SANYO Electric Co., Ltd., Daito-shi, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Jane J Rhee

Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 2/18 (2006.01); H01M 4/62 (2006.01); H01M 10/052 (2010.01); H01M 2/16 (2006.01); H01M 4/134 (2010.01); H01M 4/136 (2010.01); H01M 4/38 (2006.01); H01M 10/0525 (2010.01); H01M 4/48 (2010.01); H01M 4/133 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 2/18 (2013.01); H01M 2/1653 (2013.01); H01M 4/13 (2013.01); H01M 4/134 (2013.01); H01M 4/136 (2013.01); H01M 4/38 (2013.01); H01M 4/483 (2013.01); H01M 4/62 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 4/133 (2013.01); H01M 2004/028 (2013.01); H01M 2220/20 (2013.01); H01M 2220/30 (2013.01); Y02T 10/7011 (2013.01);
Abstract

It is an object of the present invention to improve the low-temperature output characteristics of a nonaqueous electrolyte secondary battery. A nonaqueous electrolyte secondary battery according to an embodiment includes an electrode assembly having a structure in which a positive electrode and a negative electrode are stacked with a porous separator provided therebetween. The positive electrode contains tungsten and a phosphate compound. The separator contains a material having higher oxidation resistance than a polyethylene and has a pore distribution peak sharpness index of 40 or more in the range of 0.01 μm to 10 μm as calculated using formula 1: formula 1: pore distribution peak sharpness index=(peak value of Log differential pore volume)/(difference between maximum pore size and minimum pore size at position corresponding to ½ peak value of Log differential pore volume).

Find Patent Forward Citations

Niina, Fumiharu. (2019). Nonaqueous electrolyte secondary battery (U.S. Patent No. 10374205). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10374205

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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