公开(公告)号：US20220102607A1

公开(公告)日：2022-03-31

申请号：US17422321

申请日：2019-06-11

Applicant: LG ELECTRONICS INC.

Inventor： Jongrae LIM ,  Jun KIM ,  Jooyoung PARK ,  Jeonghun SON ,  Youngil JANG

IPC: H01L35/16 ,  H01L35/18 ,  H01L35/34

Abstract: The present invention relates to a thermoelectric material and, specifically, to a thermoelectric material capable of improving the figure of merit and a preparation method therefor. In the present invention, the thermoelectric material may comprise: a matrix compound having a composition of chemical formula 1 or 2; and particles having a composition of chemical formula 3 dispersed in the matrix compound. (AB2)x(Bi2Se2.7Te0.3)1-x, (CB)x(Bi2Se2.7Te0.3)1-x, DyEz.

公开(公告)号：US20230182364A1

公开(公告)日：2023-06-15

申请号：US17925506

申请日：2020-05-15

Applicant: LG ELECTRONICS INC.

Inventor： Jongrae LIM ,  Jeonghun SON ,  Youngil JANG ,  Jooyoung PARK ,  Jun KIM

IPC: B29C48/25 ,  B21C29/02 ,  H10N10/01 ,  B29C48/475

CPC classification number: B29C48/251 ,  B21C29/02 ,  H10N10/01 ,  B29C48/475

Abstract: The present disclosure relates to an extrusion nozzle apparatus and a method for extruding a thermoelectric material using the extrusion nozzle apparatus. An extrusion nozzle apparatus according to one embodiment of the present disclosure comprises: an inlet introducing material; an outlet discharging the input material; and a discharge pipe formed in a multi-stage shape including a plurality of stages, wherein the input material is pressurized inside the discharge pipe and moves in a first direction from the inlet toward the outlet. The cross-sectional area of the plurality of stages in a direction perpendicular to the first direction progressively decreases from the inlet to the outlet. Accordingly, the thermoelectric performance of a thermoelectric material may be improved, and production cost and production time may be reduced.

公开(公告)号：US20220077375A1

公开(公告)日：2022-03-10

申请号：US17422362

申请日：2019-06-12

Applicant: LG ELECTRONICS INC.

Inventor： Jongrae LIM ,  Jun KIM ,  Jooyoung PARK ,  Jeonghun SON ,  Youngil JANG

IPC: H01L35/34 ,  H01L35/26 ,  B22F9/08 ,  B22F3/105 ,  B22F3/20

Abstract: The present invention relates to a thermoelectric material and, specifically, to a thermoelectric material manufacturing method for increasing potential density. The thermoelectric material manufacturing method of the present invention can comprise the steps of: preparing a bulk thermoelectric material by using thermoelectric material raw materials; preparing a powder of the bulk thermoelectric material; adding, to the powder, a metal additive selected from the thermoelectric material raw materials; forming an intermediate in which the metal additive is dispersed in the thermoelectric material; and sintering same at at least the melting point temperature of the metal additive.