一种梯次利用动力电池测评方法

Through a multi-dimensional testing system and automated processes, the problem of incomplete evaluation of retired power batteries has been solved, enabling efficient and accurate tiered utilization and improving safety and resource utilization.

CN120294598BActive Publication Date: 2026-07-17CHINA AUTOMOTIVE ENG RES INST +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA AUTOMOTIVE ENG RES INST
Filing Date
2025-06-03
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the evaluation methods for retired power batteries lack customized standards, resulting in incomplete testing, significant safety hazards, low efficiency, and incomplete data management, making it impossible to achieve efficient and accurate tiered utilization.

Method used

A multi-dimensional testing system is adopted, including appearance and odor inspection, safety performance testing, dynamic environment simulation, BMS function verification and data integration. Combined with automated equipment and standardized processes, a scenario adaptation risk score is generated through high-precision testing and simulation of actual battery operating conditions.

Benefits of technology

It enables efficient and accurate evaluation of retired batteries, significantly improves safety and testing efficiency, reduces costs, maximizes resource utilization, and increases the utilization rate to 85%.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及电池组测评技术领域,公开了一种梯次利用动力电池测评方法,包括:进行外观与气味检查,筛选无破损、漏液、异味的电池;依次进行安全性能测试,所述安全性能测试包括绝缘、耐压试验,淘汰不合格电池;动态环境模拟,通过室温和高低温充放电、倍率测试、内阻分析,进行健康状态检测,评估剩余容量及一致性;电压一致性评估采用高精度万用表,分辨率0.1mV,测量误差≤±0.5mV;温度一致性通过分布式温度传感器检测,精度±0.5℃,采样间隔≤2s;进行BMS功能验证,校准SOC估算及电压 / 电流测量精度;整合检测数据,生成电池健康状态报告及梯次利用建议。提升检测效率与安全性,最大化资源利用率并降低成本。
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