A high performance eco-friendly MgAgSb-based thermoelectric power generation device near phase transition temperatures

Xinzhi,Wu1; Yangjian,Lin2; Chengyan,Liu1; Yupeng,Wang1; Huan,Li1; Binghui,Ge2; Weishu,Liu1,3

2024-03

10.1039/D4EE00019f

Energy & Environmental Science   影响因子和分区

1754-5692

1754-5706

["The utilization of thermoelectric (TE) technology for eco-friendly energy harvesting presents a promising solution for off-grid power generation from waste heat. Despite the dominance of Bi2Te3 TE devices in the current market, their widespread application is hindered by the scarcity of Te and the fragile electrode contact interface. In this study, we introduce a novel thermoelectric interface material (TEiM), AgMgMn0.1, for the MgAgSb TE material, utilizing a multi-element alloying approach. This results in an advanced interface with a high bonding strength of 34.5 MPa and a low contact resistivity of 4.5 mu omega cm2, thereby overcoming the phase transition stress. In situ microstructure characterization and simulation demonstrate robust stability near phase transition temperatures and a low maximum von Mises stress, respectively. Additionally, we achieved a high performance MgAgSb-based device, with a maximum conversion efficiency of 9.1% at a temperature difference of 325 degrees C. These values surpass those of commercial Bi2Te3 products at low-grade temperature ranges. Eco-friendly MgAgSb-based Te-free TE devices offer a reliable solution for waste heat harvesting.","The utilization of thermoelectric (TE) technology for eco-friendly energy harvesting presents a promising solution for off-grid power generation from waste heat."]

SCI

英语

第一 ; 共同第一 ; 通讯

Guangdong Provincial Department of Science and Technology[20200925164021002] ; Shenzhen Key Projects of Long-Term Support Plan[2021B1212040001]

Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology

Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences

WOS:001195050400001

Royal Society of Chemistry (RSC)

人工提交

1.Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
2.Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China
3.Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China

Xinzhi,Wu,Yangjian,Lin,Chengyan,Liu,et al. A high performance eco-friendly MgAgSb-based thermoelectric power generation device near phase transition temperatures[J]. Energy & Environmental Science,2024,17(8):2879-2887.

Xinzhi,Wu.,Yangjian,Lin.,Chengyan,Liu.,Yupeng,Wang.,Huan,Li.,...&Weishu,Liu.(2024).A high performance eco-friendly MgAgSb-based thermoelectric power generation device near phase transition temperatures.Energy & Environmental Science,17(8),2879-2887.

Xinzhi,Wu,et al."A high performance eco-friendly MgAgSb-based thermoelectric power generation device near phase transition temperatures".Energy & Environmental Science 17.8(2024):2879-2887.