不确定度评定对电动自行车用锂电池放电容量判定结果影响研究  

Study on the Influence of Uncertainty Evaluation on the Result of Determining Discharge Capacity of Lithium Battery for Electric Bicycle

作　　者：于小芳 周怡 王帅 YU Xiao-fang;ZHOU Yi;WANG Shuai(Shanghai Institute of Quality Inspection and Technology Research,National Smart Grid Distributed Power Supply Equipment Quality Supervision and Inspection Center,Shanghai 201114)

机构地区：[1]上海市质量监督检验技术研究院,国家智能电网分布式电源装备质量监督检验中心,上海201114

出　　处：《环境技术》2023年第10期191-195,共5页Environmental Technology

基　　金：碳中和背景下锂电池循环寿命预测方法研究,项目编号:2023-33。

摘　　要：放电容量是评估电动自行车用锂电池电性能的重要指标。本文根据相关国家标准对电动自行车用锂电池放电容量进行测试,分析检测过程中可能因设备、电流、时间等因素产生的测量不确定度,并建立测量不确定度与实际应用相结合的符合性判定模型,分析不确定度评定对电动自行车锂电池放电容量符合性判定的影响。更好地保障检测结果的可靠性、准确性。Discharge capacity is an important index to evaluate the electric performance of lithium battery for electric bicycle.This paper tests the discharge capacity of lithium batteries for electric bicycles according to relevant national standards,analyzes the measurement uncertainty that may be caused by equipment,current,time and other factors in the detection process,and establishes a conformity judgment model combining measurement uncertainty and practical application,and analyzes the influence of uncertainty evaluation on the conformity judgment of discharge capacity of lithium batteries for electric bicycles.Better guarantee the reliability and accuracy of the test results.

关 键 词：锂电池 放电容量 不确定度评定 符合性判定 

分 类 号：U491.8[交通运输工程—交通运输规划与管理]