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非侵入性热波传感器用于商业电池降解的操作量化
Yuqiang Zeng1,2, Fengyu Shen2, Buyi Zhang2,3
1School of Microelectronics, Southern University of Science and Technology, Shenzhen, 518055, China.
Nature communications
|December 11, 2023
概括
有效电池导热率量化了电池的退化情况. 该方法使用非嵌入式热波传感器来检测涂层和电解质消耗,从而能够精确监测电池健康状况.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 现实世界的电池降解监测对于可靠的储能应用是必不可少的.
- 现有的传感技术难以进行商业电池健康状况的定量,非侵入性评估.
- 目前的方法受到电池系统的复杂性和嵌入式性质的限制.
研究的目的:
- 引入有效电池导热率 (k_eff) 作为电池退化的定量指标.
- 开发一个非嵌入式的测量方案,使用可连接的热波传感器.
- 证明该方法在区分特定降解机制方面的能力.
主要方法:
- 利用了k_eff和内部电池结构变化之间的强烈相关性.
- 开发了一种测量方案,采用可连接的热波传感器进行非侵入式检测.
- 应用该方法研究快速充电周期期间的电池降解.
主要成果:
- 成功使用k_eff来定量评估电池退化.
- 在快速充电期间区分和电解质消耗.
- 验证了k_eff对副作用引起的结构变化的敏感性.
结论:
- 有效电池导热率是电池退化的一个可行的定量指标.
- 非嵌入式热波传感器为现场电池健康监测提供了实用解决方案.
- 这种方法促进了商业电池中复杂的降解过程的定量评估.
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