|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Alloys and Compounds for Thermoelectric and Solar Cell Applications VI
||Approaching Efficient Thermoelectrics: From Materials to Modules
||Lidong Chen, Shengqaing Bai
|On-Site Speaker (Planned)
The continuous enhancement of the figure of merit zT of thermoelectric (TE) materials is an important enabling step that bodes well for widespread practical applications of thermoelectric conversion technology. Nevertheless, the TE device technology has progressed less rapidly. Especially, the conversion efficiency of fabricated TE modules falls far below the theoretical efficiency based on the performance of TE materials themselves. The pivotal reason for this is the lack of notable breakthroughs regarding the optimized design of topology and integration technology with minimized energy loss. Recently, we have demonstrated the effectiveness of full-parameter numerical analysis for approaching maximized conversion efficiency of a TE module. Combined with the developed bonding schemes and assembly techniques, the segmented modules consisting of Bi2Te3-based alloys and CoSb3-based filled skutterudites were successfully fabricated with a record-high efficiency of up to 12% when operating under a temperature difference of 541 °C.
||Planned: Supplemental Proceedings volume