Lithium battery intelligent equalization and life prolonging management method and system

By employing intelligent balancing and lifespan extension management methods for lithium batteries, and utilizing multi-parameter collaborative decision-making and DC/DC bidirectional conversion circuits, the problem of power supply stability and consistency in emergency scenarios for portable DC power supply devices is solved, achieving efficient and flexible energy management and extending the lifespan of lithium battery packs.

CN122159436APending Publication Date: 2026-06-05SHENZHEN TIEON ENERGY TECH
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Patent Information

Application Number
CN202610310194.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-13
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing portable DC power supply devices suffer from problems such as poor power supply stability, insufficient battery consistency management, weak AC input adaptability, large size and weight, and poor expandability in scenarios such as emergency maintenance and temporary power backup in substations, and cannot meet the requirements for high reliability and portability.

Method used

By adopting a lithium battery intelligent balancing and life extension management method, and through a multi-parameter collaborative balancing decision mechanism, combined with a DC/DC bidirectional conversion circuit and adaptive control strategy, the energy of the lithium battery pack is accurately and efficiently balanced, and the energy transfer parameters are dynamically adjusted to improve consistency and lifespan.

Benefits of technology

It significantly improves the charging and discharging consistency and overall efficiency of lithium battery packs, extends service life, reduces safety risks, enhances system flexibility and adaptability, and meets diverse power supply needs.

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Abstract

The invention belongs to the technical field of lithium battery management, and provides a lithium battery intelligent equalization and life prolonging management method and system, and the method comprises the steps: obtaining the state of charge (SOC) and the state of health (SOH) of each single battery in a lithium battery pack; based on the SOC and SOH of each single battery, determining the energy inconsistency of the lithium battery pack; when the energy inconsistency meets a preset equalization triggering condition, dynamically selecting at least one first target single battery for transferring out battery energy and at least one second target single battery for receiving battery energy based on the real-time difference between the SOC and SOH of each single battery; and the battery energy is transferred from the first target single battery to the second target single battery by controlling a pre-configured DC / DC bidirectional conversion circuit. According to the method, the SOC and SOH dynamic changes of the single batteries are captured, an energy inconsistency evaluation system is constructed, and the limitation that only the charge state difference is considered is overcome.
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