热电发电器件与应用技术: 现状、挑战与展望

张骐昊, 柏胜强, 陈立东

Technologies and Applications of Thermoelectric Devices: Current Status, Challenges and Prospects

Qi-Hao ZHANG, Sheng-Qiang BAI, Li-Dong CHEN

表1 典型热电发电元件的电极材料、过渡层材料及其连接方式

Table 1 Electrode, interface layer and joining method of typical thermoelectric devices

Thermoelectric material (Th/Tc)/℃ Electrode Interface layer Joining method Ref. Bismuth telluride 240/22 Cu Ni Soldering [59-60] Bismuth telluride - - Ni One-step hot press sintering [61] Bismuth telluride 200/- Cu Ni Solid-liquid diffusion welding [62] Bismuth telluride 250/50 Al Mo Plasma spraying [63] Bismuth telluride 240/20 Cu Mo Arc spraying [64] MgAg0.965Ni0.005Sb0.99 245/20 Ag - Diffusion welding [65] Poly[Ax(M-ett)] 147/67 Hot side: Al Au [66] Cold side: Ag n-type PbTe + p-type TAGS 85 500/100 Ag Ag/Fe/Ag + Fe Diffusion welding [25] Skutterudite 500/40 Al Mo Brazing [67] Skutterudite 550/70 n-type: CoSi2 [31] p-type: Co2Si Skutterudite 600/35 Hot side: Mo-Cu Cold side: Cu Ti-Al Brazing [17] n-type Bi2Te3/PbTe + p-type Sb2Te3/PbTe 600/10 Cu Hot side: Co0.8Fe0.2 Liquid InGa eutectic alloy [35] Cold side: Ni Bismuth telluride/ Skutterudite 600/35 Hot side: Mo-Cu Hot side: Ti-Al Welding [40] Cold side: Cu Cold side: Ni Half-Heusler 718/63 Hot side: Mo-Cu Brazing [18] Cold side: Cu n-type Fe0.93Co0.07Si1.99Al0.01 + p-type MnSi1.73 700/100 TiSi2 Welding [19] SiGealloy 870/31 Mo Pressure contact Cold side In welding [68] SiGe alloy 553/44 Mo C Brazing [69] SiGe alloy 1000/300 With Ti layer Diffusion welding [70] n-type Ca0.92La0.08MnO3 + p-type Ca2.75Gd0.25Co4O9 773 /383 Silver electrode Silver paste [71] p-type Mg2Si0.53Sn0.4Ge0.05Bi0.02 + n-type MnSi1.75Ge0.01 735/50 Hot side: Mo p-type: Ni/Pb/Ni Spring contact [37] Cold side: Cu n-type: Cu