A method and system for optimizing a lithium battery module with a rate of charge and discharge, and a lithium battery module

By calculating and analyzing the voltage difference, rise and fall of the lithium battery module, and optimizing the connection and heat dissipation structure, the problem of voltage imbalance and stability of the lithium battery module during high-rate charging and discharging was solved, resulting in higher safety and service life.

CN121439943BActive Publication Date: 2026-05-26GUANGDONG BAK BENHOO TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG BAK BENHOO TECHNOLOGY CO LTD
Filing Date
2025-10-20
Publication Date
2026-05-26

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Abstract

This invention specifically relates to the field of lithium battery module technology, and discloses a method, system, and lithium battery module optimization method for high-rate charge and discharge. The method includes: S100, collecting real-time voltage data of each cell in the lithium battery module at different charge and discharge rates within a preset ambient temperature; S200, calculating the voltage difference between adjacent cells, the voltage rise during charging, and the voltage drop during discharging for each cell; S300, analyzing the causes of lithium battery module anomalies based on the voltage difference, voltage rise, and voltage drop data, and adaptively optimizing the lithium battery module; S400, using steps S100 and S200, verifying whether the voltage difference, voltage rise, and voltage drop meet preset standards; if not, repeating until the preset standards are met. This method effectively solves the problems of single detection dimensions, one-sided optimization strategies, and insufficient testing accuracy in existing battery module optimization processes.
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