Battery cell and battery system comprising the same

By employing wireless communication and SoC priority allocation mechanisms in lithium-ion battery systems, the energy and heat loss issues during cell balancing are resolved, achieving efficient battery cell balancing management and improving the overall performance of the battery system.

CN122423104APending Publication Date: 2026-07-17LG ENERGY SOLUTION LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LG ENERGY SOLUTION LTD
Filing Date
2024-09-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, there are problems of energy loss and heat loss during the equalization process of lithium-ion battery cells. In particular, in active cell equalization, it is difficult to efficiently manage the differences in the charging state of multiple battery cells.

Method used

By setting up multiple battery cells in the battery system, each battery cell communicates wirelessly with the upper-level controller. The processor calculates the state of charge (SoC) of each battery cell and allocates priorities and communication periods based on the SoC differences to achieve cell balancing.

Benefits of technology

While reducing energy and power consumption, it achieves effective balanced management of multiple battery cells, improving the overall efficiency and lifespan of the battery system.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及电池单元和包括该电池单元的电池系统,并且电池单元可以在预设时段与上级控制器通信并且可以基于与上级控制器通信所消耗的电力实现电芯均衡效果。根据本发明的实施方式的电池系统包括:多个电池单元;以及上级控制器,其与多个电池单元之中被分配为主单元的电池单元无线通信,其中,多个电池单元分别在不同的时段被分配为用于与上级控制器通信的主单元。
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