Battery classification and battery module assembly based on internal resistance of battery
Through the controller and test device combined with Kalman filter and principal component analysis, the internal resistance of the battery is quickly and accurately determined, solving the problem of low battery classification and utilization rate during battery assembly, and improving battery assembly efficiency and utilization rate.
CN120275847APending Publication Date: 2025-07-08GM GLOBAL TECHNOLOGY OPERATIONS LLC
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Patent Information
- Application Number
- CN202410241350.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-01-05
- Filing Date
- 2024-03-04
- Publication Date
- 2025-07-08
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Figure CN120275847A_ABST
Abstract
A method for assembling a plurality of batteries into a battery module employs a controller having a processor and a tangible non-transient memory. The method includes positioning the plurality of batteries in a test device for a pre-assembly test. The test device is adapted to receive a selected group of the plurality of batteries at a time. The method includes performing, via the test device, a pulse power test on the selected group. The method includes receiving respective voltage trace data based in part on the pulsed power test. Respective internal resistance parameters of the plurality of batteries are tracked, via the controller, based in part on the respective voltage trace data. The method includes: arranging the plurality of batteries into a classified group based in part on the respective internal resistance parameters; and assembling the classified groups into the battery module in a predefined pattern.
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