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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 12074295 B1

PDFFull Text
Date of Patent:
Aug. 27, 2024

Filed:

Mar. 01, 2021

Circuit board assembly

Applicant:

Ngk Insulators, Ltd., Nagoya, JP;

Inventors:

Yukinobu Yura, Nagoya, JP;

Kazuki Maeda, Nagoya, JP;

Shunsuke Mizukami, Nagoya, JP;

Assignee:

NGK INSULATORS, LTD., Nagoya, JP;

Attorney:

BURR PATENT LAW, PLLC

Primary Examiner:

Kenneth J Douyette

Int. Cl.
CPC ...
H01M 50/10 (2021.01); H01M 4/131 (2010.01); H01M 4/485 (2010.01); H01M 10/04 (2006.01); H01M 10/0525 (2010.01); H01M 10/0585 (2010.01); H01M 10/42 (2006.01); H01M 50/109 (2021.01); H01M 50/50 (2021.01); H01M 50/528 (2021.01); H05K 1/18 (2006.01);
U.S. Cl.
CPC ...
H01M 10/425 (2013.01); H01M 4/131 (2013.01); H01M 4/485 (2013.01); H01M 10/0436 (2013.01); H01M 10/0525 (2013.01); H01M 10/0585 (2013.01); H01M 50/109 (2021.01); H01M 50/50 (2021.01); H01M 50/528 (2021.01); H05K 1/181 (2013.01); H05K 2201/10037 (2013.01);
Abstract

A circuit board assembly includes a wiring board, a coin-type secondary cell that is a lithium secondary cell electrically connected to the wiring board by reflow soldering, and a wireless communication device electrically connected to the wiring board. The coin-type secondary cell includes a positive electrode including a sintered body, a negative electrode including a sintered body, an electrolyte layer provided between the positive electrode and the negative electrode, and a cell case having an enclosed space in which the positive electrode, the negative electrode, and the electrolyte layer are housed. When C is given as the capacity of the positive electrode and A is given as the capacity of the negative electrode, 1.03<C/A<1.60 is satisfied.

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