Invention Grant
- Patent Title: Evaluation method of secondary battery
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Application No.: US17378305Application Date: 2021-07-16
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Publication No.: US12025674B2Publication Date: 2024-07-02
- Inventor: Aiko Nagano , Mamoru Mizutani
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Toyota
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota
- Agency: Sughrue Mion, PLLC
- Priority: JP 20147270 2020.09.02
- Main IPC: G01R31/388
- IPC: G01R31/388 ; G01R31/389 ; H01M10/0525 ; H01M10/48

Abstract:
A durability evaluation method of a secondary battery includes a durability step of continuing to apply an alternating current voltage of a durability frequency to a first secondary battery for evaluation over a durability test period, and an evaluation step of evaluating durability of an associated battery reaction associated with the durability frequency from among battery reactions of the first secondary battery. A temperature and a state of charge of the first secondary battery are adjusted to a first temperature and a first state of charge, respectively.
Public/Granted literature
- US20220065937A1 EVALUATION METHOD OF SECONDARY BATTERY Public/Granted day:2022-03-03
Information query
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