KMS Shanghai Institute of Ceramics，Chinese Academy of Sciences
| Half-Heusler Thermoelectric Module with High Conversion Efficiency and High Power Density | |
| Yu, JJ; Xing, YF; Hu, CL; Huang, ZJ; Qiu, QY; Wang, C; Xia, KY; Wang, ZY; Bai, SQ; Zhao, XB; Chen, LD; Zhu, TJ | |
| 2020-07-01 | |
| Source Publication | ADVANCED ENERGY MATERIALS
 |
| ISSN | 1614-6832 |
| Issue | 25 |
| Subtype | Article |
| Abstract | Half-Heusler (HH) compounds have shown great potential in waste heat recovery. Among them, p-type NbFeSb and n-type ZrNiSn based alloys have exhibited the best thermoelectric (TE) performance. However, TE devices based on NbFeSb-based HH compounds are rarely studied. In this work, bulk volumes of p-type (Nb0.8Ta0.2)(0.8)Ti0.2FeSb and n-type Hf0.5Zr0.5NiSn0.98Sb0.02 compounds are successfully prepared with good phase purity, compositional homogeneity, and matchable TE performance. The peak zTs are higher than 1.0 at 973 K for Hf0.5Zr0.5NiSn0.98Sb0.02 and at 1200 K for (Nb0.8Ta0.2)(0.8)Ti0.2FeSb. Based on an optimal design by a full-parameters 3D finite element model, a single stage TE module with 8 n-p HH couples is assembled. A high conversion efficiency of 8.3% and high power density of 2.11 W cm(-2) are obtained when hot and cold side temperatures are 997 and 342 K, respectively. Compared to the previous TE module assembled by the same materials, the conversion efficiency is enhanced by 33%, while the power density is almost the same. Given the excellent mechanical robustness and thermal stability, matchable thermal expansion coefficient and TE properties of NbFeSb and ZrNiSn based HH alloys, this work demonstrates their great promise for power generation with both high conversion efficiency and high power density. |
| DOI | 10.1002/aenm.202000888 |
| WOS Keyword | HIGH-TEMPERATURE ; PERFORMANCE ; GENERATION ; REALIZATION ; STABILITY ; FIGURE ; MERIT ; GETE ; PBTE |
| Language | 英语 |
| WOS Research Area | Chemistry ; Energy & Fuels ; Materials Science ; Physics |
| Publisher | WILEY-V C H VERLAG GMBH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sic.ac.cn/handle/331005/28054 |
| Collection | 中国科学院上海硅酸盐研究所 |
| Recommended Citation GB/T 7714 | Yu, JJ,Xing, YF,Hu, CL,et al. Half-Heusler Thermoelectric Module with High Conversion Efficiency and High Power Density[J]. ADVANCED ENERGY MATERIALS,2020(25). |
| APA | Yu, JJ.,Xing, YF.,Hu, CL.,Huang, ZJ.,Qiu, QY.,...&Zhu, TJ.(2020).Half-Heusler Thermoelectric Module with High Conversion Efficiency and High Power Density.ADVANCED ENERGY MATERIALS(25). |
| MLA | Yu, JJ,et al."Half-Heusler Thermoelectric Module with High Conversion Efficiency and High Power Density".ADVANCED ENERGY MATERIALS .25(2020). |
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