公开(公告)号：US20150228881A1

公开(公告)日：2015-08-13

申请号：US14425544

申请日：2013-08-26

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Ryoji Funahashi

IPC: H01L35/20 ,  C22C22/00 ,  C22C30/02 ,  C30B29/52 ,  C22C30/00

CPC classification number: H01L35/20 ,  B22F3/105 ,  B22F3/14 ,  B22F3/16 ,  B22F2003/1054 ,  B22F2009/041 ,  C01B33/06 ,  C22C1/02 ,  C22C22/00 ,  C22C29/18 ,  C22C30/00 ,  C22C30/02 ,  C30B29/52

Abstract: The present invention provides a metal material represented by compositional formula MnxMySimAln wherein M is at least one element selected from the group consisting of Ti, V, Cr, Fe, Co, Ni, and Cu; and 2.0≦x≦3.5, 0≦y≦1.4, 2.5≦x+y≦3.5, 3.5≦m≦4.5, and 1.5≦n≦2.49, the metal material having a negative Seebeck coefficient and an electrical resistivity of 2 mΩ·cm or less at a temperature of 25° C. or more, the metal material being in a crystalline form. The present invention provides a novel material useful as an n-type thermoelectric conversion material exhibiting favorable thermoelectric conversion performance in the intermediate temperature range and excellent durability.

Abstract translation: 本发明提供一种由组成式Mn x M y S im Al n表示的金属材料，其中M是选自Ti，V，Cr，Fe，Co，Ni和Cu中的至少一种元素; 和2.0＆nlE; x＆nlE; 3.5,0和nlE; y＆nlE; 1.4,2.5＆amp; nlE; x + y＆nlE; 3.5,3.5＆nlE; m＆nlE; 4.5和1.5＆amp; nlE; n＆nlE; 2.49，金属材料具有负的塞贝克系数和电阻率 在25℃或更高的温度下为2m＆OHgr·cm或更小，金属材料为结晶形式。 本发明提供了一种新颖的材料，可用作在中间温度范围内表现出良好的热电转换性能和优异的耐久性的n型热电转换材料。

公开(公告)号：US20170125658A1

公开(公告)日：2017-05-04

申请号：US15311658

申请日：2015-05-13

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Ryoji Funahashi

IPC: H01L35/14 ,  H01L35/08 ,  B23K35/36 ,  C01B33/06 ,  B23K35/02 ,  B23K35/30

CPC classification number: H01L35/14 ,  B23K35/025 ,  B23K35/3006 ,  B23K35/3601 ,  B23K35/3613 ,  C01B33/06 ,  C01P2006/32 ,  C01P2006/40 ,  C22C5/06 ,  C22C29/18 ,  H01B1/22 ,  H01L35/08 ,  H01L35/34 ,  H02N11/00

Abstract: A thermoelectric conversion element in which one end of an n-type thermoelectric conversion material and one end of a p-type thermoelectric conversion material are each bonded to a conductive substrate using a bonding agent, the n-type thermoelectric conversion material and the p-type thermoelectric conversion material being specific silicides, the bonding agent being a conductive paste containing conductive metals consisting of silver and at least one noble metal selected from the group consisting of gold, platinum, and palladium, as well as a thermoelectric conversion module comprising a plurality of these thermoelectric conversion elements and having a specific structure, achieve excellent thermoelectric conversion performance in an intermediate temperature range of room temperature to about 700° C., and performance degradation hardly occurs even when electric generation is repeated, making it possible to maintain the excellent performance over a long period of time.

公开(公告)号：US12102007B2

公开(公告)日：2024-09-24

申请号：US17759843

申请日：2021-01-26

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Ryoji Funahashi

IPC: H10N10/817 ,  H10N10/01 ,  H10N10/17 ,  H10N10/853

CPC classification number: H10N10/817 ,  H10N10/01 ,  H10N10/17 ,  H10N10/853

Abstract: This thermoelectric conversion module is formed by electrically connecting, by a conductive member, one end of an n-type thermoelectric conversion element having a negative Seebeck coefficient and having a half-Heusler structure to one end of a p-type thermoelectric conversion element containing an oxide having a positive Seebeck coefficient at a temperature of 25° C. or higher. The conductive member is connected to the n-type thermoelectric conversion element and the p-type thermoelectric conversion element through a connection layer containing a conductive metal comprising silver, and the connection layer is characterized by further containing an oxide to reduce the bond resistance between the n-type thermoelectric conversion element and/or the p-type thermoelectric conversion element.