公开(公告)号：US20220064510A1

公开(公告)日：2022-03-03

申请号：US17420737

申请日：2019-12-04

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Asaya FUJITA ,  Hiroyuki NAKAYAMA ,  Yoshiaki KINEMUCHI ,  Kimihiro OZAKI ,  Haruka ABE

IPC: C09K5/06 ,  C01G31/02 ,  F28D20/02

Abstract: [PROBLEM TO BE SOLVED] To provide a solid heat storage material that is made of a VO2-based inorganic material, is easy to sinter, has a high latent heat storage capacity, and can be suitably used as a phase change solid heat storage material, and a method of manufacturing the same.
[SOLUTION] A powder material for sintering of a first aspect of the present invention includes vanadium and oxygen and includes a vanadium oxide represented by the chemical formula VO2 and at least one other type of vanadium oxide, in which, when the molar ratio of V and O in all the powder is expressed as 1:(2+d), d is in the range of 0

公开(公告)号：US20230175789A1

公开(公告)日：2023-06-08

申请号：US17924167

申请日：2021-05-14

Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Inventor： Yoshiaki KINEMUCHI ,  Asaya FUJITA ,  Hiroyuki NAKAYAMA ,  Kimihiro OZAKI ,  Haruka ABE

IPC: F28D20/02 ,  C09K5/14

CPC classification number: F28D20/02 ,  C09K5/14

Abstract: A solid heat storage material includes a bonding of vanadium dioxide and a highly thermally conductive substance higher in thermal conductivity than the vanadium dioxide, the highly thermally conductive substance being dispersed in the vanadium dioxide, the vanadium dioxide and the highly thermally conductive substance adhering closely and densely together, the highly thermally conductive substance having a volume fraction of 0.03 or more.