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    Thermoelectric conversion element and thermoelectric conversion module
    2.
    发明授权
    Thermoelectric conversion element and thermoelectric conversion module 有权

    公开(公告)号：US11871666B2

    公开(公告)日：2024-01-09

    申请号：US16417791

    申请日：2019-05-21

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Miho Uehara ,  Yuriko Kaneko ,  Atsushi Ono ,  Masashige Kawabe ,  Tsutomu Kanno ,  Hiromasa Tamaki ,  Hiroki Sato

    IPC: H10N10/17 ,  H10N10/81 ,  H10N10/852

    CPC classification number: H10N10/17 ,  H10N10/81 ,  H10N10/852

    Abstract: The thermoelectric conversion element according to the present disclosure comprises a first electrode, a second electrode, a first intermediate layer, a second intermediate layer, and a thermoelectric conversion layer. The first intermediate layer is provided between the thermoelectric conversion layer and the first electrode. The first intermediate layer is in contact with the thermoelectric conversion layer. The first electrode is in contact with the first intermediate layer. The second intermediate layer is provided between the thermoelectric conversion layer and the second electrode. The second intermediate layer is in contact with the thermoelectric conversion layer. The second electrode is in contact with the second intermediate layer. The first electrode and the second electrode are composed of a CuZn alloy. The thermoelectric conversion layer is composed of a thermoelectric conversion material containing Mg. The thermoelectric conversion material contains at least one kind of element selected from the group consisting of Sb and Bi. The thermoelectric conversion material contains at least one kind of element selected from the group consisting of Se and Te. The thermoelectric conversion material has a La2O3-type crystalline structure. A composition of the first intermediate layer is different from both a composition of the first electrode and a composition of the thermoelectric conversion layer. A composition of the second intermediate layer is different from both a composition of the second electrode and a composition of the thermoelectric conversion layer.

    Thermoelectric conversion module
    6.
    发明授权
    Thermoelectric conversion module 有权

    公开(公告)号：US10714670B2

    公开(公告)日：2020-07-14

    申请号：US16426002

    申请日：2019-05-30

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Hiroki Sato ,  Tsutomu Kanno ,  Hiromasa Tamaki ,  Yuriko Kaneko ,  Miho Uehara

    IPC: H01L35/32 ,  H01L35/10

    Abstract: The present disclosure provides a thermoelectric conversion module that enables continued use of a thermoelectric generation system even when a part of a plurality of the thermoelectric conversion modules fails by being exposed to a higher temperature. The thermoelectric conversion module according to the present disclosure includes a substrate, a plurality of thermoelectric conversion element pairs electrically connected in series on the substrate, a pair of external terminals that carries out one of inputting and outputting of electric power, and a low melting point conductor. The low melting point conductor has a melting point that is substantially equal to a heat-resistant temperature of a p-type thermoelectric conversion element or an n-type thermoelectric conversion element. One of the pair of external terminals has a first connecting part connecting with the p-type thermoelectric conversion element positioned at one end of the plurality of thermoelectric conversion element pairs, whereas the other of the pair of external terminals has a second connecting part connecting with the n-type thermoelectric conversion element positioned at the other end of the plurality of thermoelectric conversion element pairs. The first and second connecting parts and the low melting point conductor are positioned in an inner region of the substrate. At least a part of the low melting point conductor is positioned between the pair of external terminals and is electrically insulated from at least one of the pair of external terminals.

    Thermoelectric conversion material
    10.
    发明授权
    Thermoelectric conversion material 有权

    公开(公告)号：US10121953B2

    公开(公告)日：2018-11-06

    申请号：US15243832

    申请日：2016-08-22

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Hiromasa Tamaki ,  Tsutomu Kanno ,  Hiroki Sato ,  Akihiro Sakai ,  Kohei Takahashi

    IPC: H01L35/16 ,  H02N3/00 ,  C22C12/00 ,  C22C30/00 ,  C22C30/06 ,  C04B35/547 ,  C22C1/04 ,  C22C23/00

    Abstract: The present invention provides a thermoelectric conversion material represented by the following chemical formula Mg3+mAaBbD2-eEe. The element A represents at least one selected from the group consisting of Ca, Sr, Ba and Yb. The element B represents at least one selected from the group consisting of Mn and Zn. The value of m is not less than −0.39 and not more than 0.42. The value of a is not less than 0 and not more than 0.12. The value of b is not less than 0 and not more than 0.48. The element D represents at least one selected from the group consisting of Sb and Bi. The element E represents at least one selected from the group consisting of Se and Te. The value of e is not less than 0.001 and not more than 0.06. The thermoelectric conversion material has a La2O3 crystalline structure. The thermoelectric conversion material is of n-type. The present invention provides a novel thermoelectric conversion material.

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