热敏结晶增强液体热电池用于低等级的热收获
Boyang Yu1, Jiangjiang Duan1, Hengjiang Cong2
1Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China.
概括
研究人员开发了一种新型的液态热电池 (LTC), 这项突破性的技术实现了超过11%的相对效率,为废热回收提供了具有成本效益的解决方案.
科学领域:
- 热电能转换
- 用于能源应用的材料科学
背景情况:
- 低级热量 (<373K) 是丰富的,但由于效率低下的回收技术而被大量浪费.
- 如果卡诺相对效率 (ηr) 超过5%,则液态热电池 (LTC) 显示出具有成本效益的热收获潜力.
研究的目的:
- 开发一个高效的LTC,以节省成本的低级热回收.
- 克服在LTC中实现高 ηr的实验挑战.
主要方法:
- 使用热敏结晶和溶解过程.
- 在LTC中诱导了氧化还原离子的持续度梯度.
- 实现了增强的西贝克系数和抑制的导热性.
主要成果:
- 在室温附近LTC的记录为11.1%.
- 达到3.73mV/K的西贝克系数.
- 显著抑制了导热性.
结论:
- 开发的LTC技术为高效和成本效益的低等级热收获提供了有前途的途径.
- 这种新的方法克服了热电器的效率限制.
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