Invention Grant
- Patent Title: System and method for rapidly discharging a battery cell during a thermal event
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Application No.: US17534079Application Date: 2021-11-23
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Publication No.: US12027675B2Publication Date: 2024-07-02
- Inventor: Niklas Roos , Robert Wassmur
- Applicant: Polestar Performance AB
- Applicant Address: SE Gothenburg
- Assignee: POLESTAR PERFORMANCE AB
- Current Assignee: POLESTAR PERFORMANCE AB
- Current Assignee Address: SE Gothenburg
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: H01M10/42
- IPC: H01M10/42 ; H01M10/052 ; H01M10/48 ; H01M10/625 ; H01M10/658 ; H01M50/204 ; H01M50/249

Abstract:
An electric vehicle battery pack configured to rapidly discharge one or more individual battery cells within a multi-cell battery arrangement to mitigate a propagation of a multi-cell thermal runaway event, the vehicle battery pack including a plurality of battery cells and a battery management system including sensing circuitry configured to sense one or more conditions of the plurality of battery cells, a processor configured to process data sensed by the sensing circuitry to determine whether any of the plurality of battery cells is experiencing the onset of a thermal runaway event, and a control engine configured to isolate and rapidly discharge a potential energy from a battery cell experiencing the onset of a thermal runaway event, thereby mitigating a potential for a propagation of a thermal runaway event experienced by a single cell into a multi-cell thermal runaway event.
Public/Granted literature
- US20230163370A1 SYSTEM AND METHOD FOR RAPIDLY DISCHARGING A BATTERY CELL DURING A THERMAL EVENT Public/Granted day:2023-05-25
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