The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2026
Filed:
Jul. 12, 2022
Institute of Metal Research, Chinese Academy of Sciences, Liaoning, CN;
Abstract
The present invention aims to provide an application of an ammonium ion-containing halogen compound in solid-state refrigeration and a novel efficient solid-state refrigeration method driven by a pressure. The ammonium ion-containing halogen compound is characterized in that phase change can be induced with only a small pressure, resulting in a huge barocaloric effect, and the unit pressure thereof drives the phase-change temperature displacement as high as 0.81 Kmin. Ammonium iodide produces 89.07 J kgKisothermal entropy change under a pressure of 20 MPa; and the use of this material for a refrigeration cycle is far superior to other material systems having a barocaloric effect.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile