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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 12658489 B1

PDFFull Text
Date of Patent:
Jun. 16, 2026

Filed:

Jan. 05, 2024

Method, apparatus and computer-readable medium for estimating state of battery using radio frequency signal

Applicant:

Samsung Sdi Co., Ltd., Yongin-si, KR;

Inventor:

Minsu Kim, Yongin-si, KR;

Assignee:

SAMSUNG SDI CO., LTD., Yongin-si, KR;

Attorney:

Lee IP Law, P.C.

Primary Examiner:

Huy Q Phan

Assistant Examiner:

Trung Q Nguyen

Int. Cl.
CPC ...
H01M 10/48 (2006.01); G01R 31/367 (2019.01); G01R 31/371 (2019.01); G06N 3/08 (2023.01); G01R 31/382 (2019.01); G01R 31/392 (2019.01);
U.S. Cl.
CPC ...
H01M 10/48 (2013.01); G01R 31/367 (2019.01); G01R 31/371 (2019.01); G06N 3/08 (2013.01); G01R 31/382 (2019.01); G01R 31/392 (2019.01);
Abstract

A method of estimating a state of a battery cell provided in a battery pack includes obtaining, from a radio frequency (RF) antenna provided at opposite ends of the battery cell and configured to transmit and receive an RF signal, data regarding a phase and an amplitude of the RF signal, calculating an expansion coefficient of a jelly roll inside the battery cell based on the data regarding the phase and the amplitude of the RF signal, and estimating a state of the battery cell based on the expansion coefficient of the jelly roll. Corresponding apparatus and non-transitory computer-readable medium are also provided.

Find Patent Forward Citations

Kim, Minsu. (2026). Method, apparatus and computer-readable medium for estimating state of battery using radio frequency signal (U.S. Patent No. 12658489). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12658489

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

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