公开(公告)号：US20240365669A1

公开(公告)日：2024-10-31

申请号：US18771347

申请日：2024-07-12

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuriko KANEKO ,  Hiromasa TAMAKI ,  Tsutomu KANNO ,  Reiko HAGAWA ,  Hiroki SATO ,  Hyunjeong NAM

IPC: H10N10/852 ,  C22C1/04 ,  C22C12/00 ,  C22C30/00

CPC classification number: H10N10/852 ,  C22C1/04 ,  C22C12/00 ,  C22C30/00

Abstract: A thermoelectric conversion material is a polycrystalline material composed of a plurality of crystal grains and has a composition represented by formula (I): Mg3+mSbaBi2−a−cAc. In the formula (I), A is at least one element selected from the group consisting of Se and Te, the value of m is greater than or equal to 0.01 and less than or equal to 0.5, the value of a is greater than or equal to 0 and less than or equal to 1.0, and the value of c is greater than or equal to 0.001 and less than or equal to 0.06. The thermoelectric conversion material has an Mg-rich region.