MnO2-Based Thermopower Wave Sources with Exceptionally Large Output Voltages

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• 作者：Sumeet Walia ; Sivacarendran Balendhran ; Pyshar Yi ; David Yao ; Serge Zhuiykov ; Muthu Pannirselvam ; Rodney Weber ; Michael S. Strano ; Madhu Bhaskaran ; Sharath Sriram ; Kourosh Kalantar-zadeh
• 刊名：The Journal of Physical Chemistry C
• 出版年：2013
• 出版时间：May 9, 2013
• 年：2013
• 卷：117
• 期：18
• 页码：9137-9142
• 全文大小：335K
• 年卷期：v.117,no.18(May 9, 2013)
• ISSN：1932-7455

文摘

Miniaturization of conventional energy sources has so far proven to be a cumbersome process. A recently developed concept of thermopower waves has shown tremendous potential to reduce the dimensions of power sources while maintaining their energy generation capabilities. We demonstrate a tremendous improvement in the output for these thermopower wave-based energy generation devices by implementing manganese dioxide (MnO₂) as the core thermoelectric material. In this work, the thermoelectric MnO₂ layer is used as a pathway for the propagation of thermopower waves that are generated as a result of an exothermic chemical reaction of a solid fuel (nitrocellulose). Such self-propagating thermopower waves result in exceptionally high voltage output on the order of 1.8 V and a specific power (power-to-mass ratio) on the order of 1.0 kW路kg^鈥?. The output voltage is at least 300% higher than any other thermopower wave system reported so far.