在离子电池中无线传输内部危险信号
Jinbao Fan1, Chenchen Liu1, Na Li2
1Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, China.
Nature
|May 14, 2025
概括
研究人员开发了一个新的系统来监测离子电池 (LIB) 的内部温度和应变. 这项技术可提早发现故障,提高电动汽车和电子设备的安全性.
科学领域:
- 材料科学
- 电气工程
- 电池技术
背景情况:
- 高容量离子电池对于电子,电动汽车和储能至关重要.
- 越来越多的安全问题和事件凸显了LIB中先进监控系统的需要.
- 在LIB内部的内部温度和应变是潜在故障的关键指标.
研究的目的:
- 开发一个小型的,低功耗的系统,用于感知和无线传输LIB内部的温度和应变信号.
- 在不影响电池性能的情况下早期诊断和警告LIB故障.
- 为下一代智能LIB提供基础,并增强安全功能.
主要方法:
- 实施一个准确检测内部温度和应变的系统.
- 从LIB内部收集数据的无线传输.
- 使用温度信号和电极短路面积比率对热失控和滥用行为进行定量分析.
主要成果:
- 一个能够监测内部温度和应变,对LIB性能影响微不足道的系统.
- 该系统可以评估热失控强度和识别热滥用.
- 成功获取和传输关键的内部电池信号以进行安全分析.
结论:
- 开发的系统为LIB的早期故障诊断和预警提供了一个有前途的方法.
- 这项技术为创建具有故障定位能力的更安全,更智能的LIB奠定了基础.
- 监测内部信号对于确保商业LIB在各个部门的安全应用至关重要.
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