电池电子化:电池内部执行和热管理
Ryan S Longchamps1,2, Shanhai Ge1, Zachary J Trdinich1
1Electrochemical Engine Center (ECEC) and Department of Mechanical Engineering, The Pennsylvania State University, University Park, PA, USA.
Nature communications
|June 25, 2024
概括
一种新的芯片电池集成了加热器和微开关,用于内部热管理. 这种设计提高了电化学电池的性能,安全性和寿命,而不需要外部组件.
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:
- 电化学电池对于汽车电气化和可再生能源储能至关重要.
- 现有的电池设计往往涉及由于反应接口的功率,能量,寿命和安全性之间的妥协.
- 外部热管理系统可能是庞大而低效的.
研究的目的:
- 开发一个集成的电池系统,克服外部热管理的局限性.
- 通过内部监管来提高电池性能,安全性和寿命.
- 推出一个简化的,可放入的电池解决方案.
主要方法:
- 在电池电池的层层结构中集成了一种超薄片加热器和一个微开关.
- 使用电池内驱动和开关和电池材料之间的相互热管理.
- 一个双终端,独立的电池设计的演示.
主要成果:
- 实现了快速的自我加热率 (大约60°C分-1).
- 证明了用于加热的低能耗 (每°C电池能量的0.138%).
- 展现出优异的耐用性,超过2000个周期.
结论:
- 芯片内电池为热管理提供了一种简化和高效的方法.
- 这种集成的平台可以对电池性能,寿命和安全进行内部调节.
- 该技术为"电池电子化"铺平了道路,并集成了传感,控制和通信功能.
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