IDiyas

For the Inventor, By the Inventor

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 11217784 B1

PDFFull Text
Date of Patent:
Jan. 04, 2022

Filed:

Mar. 03, 2021

Positive electrode structure for secondary battery

Applicant:

Ngk Insulators, Ltd., Nagoya, JP;

Inventors:

Junki Matsuya, Nagoya, JP;

Kenshin Kitoh, Nagoya, JP;

Takeshi Yagi, Toyohashi, JP;

Assignee:

NGK Insulators, Ltd., Nagoya, JP;

Attorney:

Burr & Brown, PLLC

Primary Examiner:

Basia A Ridley

Assistant Examiner:

Heng M Chan

Int. Cl.
CPC ...
H01M 4/32 (2006.01); H01M 4/24 (2006.01); H01M 4/52 (2010.01); H01M 4/66 (2006.01); H01M 4/80 (2006.01); H01M 10/30 (2006.01); H01M 4/02 (2006.01); H01M 50/497 (2021.01); H01M 50/414 (2021.01); H01M 50/417 (2021.01); H01M 50/446 (2021.01); H01M 50/434 (2021.01); H01M 50/431 (2021.01);
U.S. Cl.
CPC ...
H01M 4/32 (2013.01); H01M 4/244 (2013.01); H01M 4/52 (2013.01); H01M 4/661 (2013.01); H01M 4/668 (2013.01); H01M 4/808 (2013.01); H01M 10/30 (2013.01); H01M 50/414 (2021.01); H01M 50/417 (2021.01); H01M 50/431 (2021.01); H01M 50/434 (2021.01); H01M 50/446 (2021.01); H01M 50/497 (2021.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

Provided is a positive electrode structure for a secondary battery. This positive electrode structure includes: a positive electrode current collector composed of a tabular nickel foam and having a tabular coated portion and an uncoated portion extending from an outer peripheral portion of the coated portion; and a positive electrode active material containing nickel hydroxide and/or nickel oxyhydroxide incorporated into the coated portion of the positive electrode current collector. The positive electrode active material is not present in the uncoated portion of the positive electrode current collector, and the nickel foam constituting the uncoated portion is compressed so as to have a thickness of 0.10 times or more and less than 0.8 times a thickness of the nickel foam constituting the coated portion.

Find Patent Forward Citations

Loading…