Invention Grant
- Patent Title: Method for parameter estimation in an impedance model of a lithium ion cell
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Application No.: US17767569Application Date: 2020-09-24
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Publication No.: US12055593B2Publication Date: 2024-08-06
- Inventor: Stefan Roemersperger , Jan Philipp Schmidt , Tobias Thiem , Christopher Wagner
- Applicant: Bayerische Motoren Werke Aktiengesellschaft
- Applicant Address: DE Munich
- Assignee: Bayerische Motoren Werke Aktiengesellschaft
- Current Assignee: Bayerische Motoren Werke Aktiengesellschaft
- Current Assignee Address: DE Munich
- Agency: Crowell & Moring LLP
- Priority: DE 2019127384.6 2019.10.10
- International Application: PCT/EP2020/076766 2020.09.24
- International Announcement: WO2021/069232A 2021.04.15
- Date entered country: 2022-04-08
- Main IPC: G01R31/389
- IPC: G01R31/389 ; G01R31/367 ; G01R31/3842 ; G01R31/392 ; G01R31/396
Abstract:
A method for determining the parameters of an equivalent circuit for representation of the impedance of a lithium ion cell is provided. The equivalent circuit includes at least one RC element having an ohmic resistor R1, a capacitor C1, and a series resistor Rs. The series resistor Rs is determined by an impedance measurement.
Public/Granted literature
- US20240085485A1 Method for Parameter Estimation in an Impedance Model of a Lithium Ion Cell Public/Granted day:2024-03-14
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