基于质量计量的电池循环寿命测试数据一致性研究

Research on Data Consistency of Battery Cycle Life Testing Based on Quality Measurement

摘要

电池循环寿命测试是评价动力电池、储能电池及消费类电池可靠性的重要依据，其测试结果直接影响产品分级、寿命预测、梯次利用评估和质量追溯。在实际测试过程中，不同测试通道、不同设备批次、不同实验室以及不同工况设定下获得的容量保持率、能量效率、内阻变化和寿命终止点往往存在差异，导致测试数据的一致性不足。本文以质量计量为切入点，从量值溯源、测试条件控制、设备计量确认、数据处理规则和不确定度评价等方面分析电池循环寿命测试数据差异的形成机理，构建面向循环寿命测试全过程的数据一致性控制思路。

Abstract

Battery cycle life testing is an important basis for evaluating the reliability of power batteries, energy storage batteries, and consumer batteries. Its test results directly affect product grading, life prediction, hierarchical utilization evaluation, and quality traceability. In the actual testing process, there are often differences in capacity retention, energy efficiency, internal resistance changes, and end-of-life points obtained under different testing channels, equipment batches, laboratories, and operating conditions, resulting in insufficient consistency of test data. This article takes quality measurement as the starting point, analyzes the formation mechanism of data differences in battery cycle life testing from the aspects of value traceability, testing condition control, equipment measurement confirmation, data processing rules, and uncertainty evaluation, and constructs a data consistency control approach for the entire process of cycle life testing.

关键词

质量计量 / 电池循环寿命 / 数据一致性 / 计量确认 / 不确定度

Key words

quality measurement / battery cycle life / data consistency / measurement confirmation / uncertainty

参考文献

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