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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 8914243 B1

PDFFull Text
Date of Patent:
Dec. 16, 2014

Filed:

Oct. 21, 2011

Method for calculating number of healthy strings of sodium-sulfur battery and failure detection method using same

Applicants:

Naoki Hirai, Nagoya, JP;

Motohiro Fukuhara, Nagoya, JP;

Inventors:

Naoki Hirai, Nagoya, JP;

Motohiro Fukuhara, Nagoya, JP;

Assignee:

NGK Insulators, Ltd., Nagoya, JP;

Attorney:

Burr & Brown, PLLC

Primary Examiner:

Aditya Bhat

Int. Cl.
CPC ...
G01N 31/00 (2006.01); H01M 6/42 (2006.01); H01M 10/48 (2006.01); H01M 10/39 (2006.01); G01R 31/36 (2006.01);
U.S. Cl.
CPC ...
H01M 10/3909 (2013.01); H01M 6/42 (2013.01); G01R 31/3658 (2013.01); G01R 31/3679 (2013.01); H01M 10/48 (2013.01);
Abstract

A number (uo) of healthy strings of one block in a sodium-sulfur battery is determined according to expression (1), and a failure of the sodium-sulfur battery is detected on the basis of the determination of the value of the uo. This method makes it possible to properly determine a failure of the sodium-sulfur battery, which can be used to compensate for fluctuations of electric power generated by a renewable energy generating device. uo=(Qo/Qs)×us . . . (1) where Qs: used capacity of reference block; Qo: used capacity of target block; and us: number of healthy strings of reference block (us≦u).

Find Patent Forward Citations

Hirai, Naoki. (2014). Method for calculating number of healthy strings of sodium-sulfur battery and failure detection method using same (U.S. Patent No. 8914243). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8914243

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