Battery system energy management method, battery system, battery management system and electric device

CN121123449BActive Publication Date: 2026-06-05CONTEMPORARY AMPEREX TECHNOLOGY CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
Filing Date
2025-11-06
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In existing battery systems, the risk of over-discharge due to self-discharge affects the performance and lifespan of the battery system.

Method used

By setting up independent energy zones in the battery system and using a method of energy transfer from the first battery pack to the second battery pack, the energy flow between battery packs is controlled to ensure energy transfer under specific conditions to reduce the risk of self-discharge, including replenishing energy from the first battery pack when the second battery pack has been idle for a certain period of time.

Benefits of technology

It effectively reduces the risk of over-discharge caused by battery self-discharge, improves the performance and lifespan of the battery pack, and ensures that the battery system can reliably supply power when it is idle for a long time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the application provides a battery system energy management method, a battery system, a battery management system and a power utilization device, the method comprises the following steps: acquiring the working state and the state parameter of the battery system; in the case that the second battery pack is in a static state and lasts for a first preset time, the state parameter of the first battery pack is greater than or equal to a first preset state value, and the state parameter of the second battery pack is less than or equal to a second preset state value, controlling the first battery pack to transfer energy to the second battery pack; if the state parameter of the first battery pack is less than a third preset state value after energy transfer, controlling the first battery pack to stop transferring energy to the second battery pack. The battery system energy management method, the battery system, the battery management system and the power utilization device provided by the embodiment of the application can improve the performance of the battery system.
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