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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 11223038 B1

PDFFull Text
Date of Patent:
Jan. 11, 2022

Filed:

Mar. 08, 2018

Method for manufacturing secondary battery

Applicant:

Vehicle Energy Japan Inc., Hitachinaka, JP;

Inventors:

Hiroyuki Toshiro, Hitachinaka, JP;

Motonari Kifune, Hitachinaka, JP;

Yasuo Arishima, Hitachinaka, JP;

Assignee:

VEHICLE ENERGY JAPAN INC., Hitachinaka, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Tracy M Dove

Int. Cl.
CPC ...
H01M 4/139 (2010.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/66 (2006.01); H01M 4/62 (2006.01);
U.S. Cl.
CPC ...
H01M 4/139 (2013.01); H01M 4/0404 (2013.01); H01M 4/366 (2013.01); H01M 4/628 (2013.01);
Abstract

An object of the present invention is to provide a method for manufacturing a secondary battery with enhanced insulating reliability without degrading the performance of an active material mixture layer formed on an electrode. The present invention provides a method for manufacturing a prismatic secondary battery () including a negative electrode () having a negative electrode current-collecting foil (), a negative electrode mixture layer () formed thereon, and an insulating layer () formed on the negative electrode mixture layer (). The method of the present invention includes a step of forming the negative electrode mixture layer () and the insulating layer () by concurrently applying an active material mixture slurry and an insulating layer dispersion liquid to the negative electrode current-collecting foil (). Each ceramic particle () has a plate shape with an aspect ratio greater than or equal to 2.0 and less than or equal to 5.0. The particle size of each mixture particle () is greater than the length of the long side of each ceramic particle ().

Find Patent Forward Citations

Toshiro, Hiroyuki. (2022). Method for manufacturing secondary battery (U.S. Patent No. 11223038). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11223038

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

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