公开(公告)号：US20190003746A1

公开(公告)日：2019-01-03

申请号：US16064784

申请日：2015-12-21

Applicant: United Technologies Corporation

Inventor： Wei Xie ,  Subramanyaravi Annapragada ,  Joseph V. Mantese ,  Parmesh Verma ,  Thomas D. Radcliff

IPC: F25B21/00 ,  B29C41/00

Abstract: A method of making an electrocaloric element includes dissolving or dispersing an electrocaloric polymer in an organic solvent having a boiling point of less than 100° C. at 1 atmosphere to form a liquid composition comprising the electrocaloric polymer. A film of the liquid composition is cast on a substrate, and the organic solvent is evaporated to form a film of the electrocaloric polymer. The film is removed from the substrate and disposed between electrical conductors to form an electrocaloric element.

公开(公告)号：US10050290B2

公开(公告)日：2018-08-14

申请号：US15107517

申请日：2013-12-26

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Michael L. Perry ,  Andrew Smeltz ,  Wei Xie

IPC: H01M8/20 ,  H01M8/04276 ,  H01M8/04186 ,  H01M8/0444 ,  H01M8/04746 ,  H01M8/18

CPC classification number: H01M8/04186 ,  H01M8/04276 ,  H01M8/0444 ,  H01M8/04783 ,  H01M8/188 ,  H01M8/20 ,  Y02E60/528

Abstract: A flow battery that includes an electrochemical cell having first and second half-cells and an ion-selective separator there between wherein a fluid pressure differential across the ion-selective separator for a controlled amount of time is selectively utilized to urge a concentration imbalance of the electrochemically active species between the first and second electrolytes toward a concentration balance.

公开(公告)号：US20170279130A1

公开(公告)日：2017-09-28

申请号：US15079239

申请日：2016-03-24

Applicant: United Technologies Corporation

Inventor： Scott Alan Eastman ,  Wei Xie ,  Michael L. Perry

IPC: H01M8/0221 ,  H01M8/0213 ,  H01M4/86 ,  H01M4/96 ,  H01M8/18 ,  H01M8/20

CPC classification number: H01M8/0221 ,  H01M2/1653 ,  H01M4/8605 ,  H01M4/96 ,  H01M8/0213 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/188 ,  H01M8/20 ,  H01M2250/10 ,  Y02B90/14 ,  Y02E60/521 ,  Y02E60/528

Abstract: A flow battery includes an electrochemical cell that has a first electrode, a second electrode spaced apart from the first electrode, and a separator layer arranged between the first electrode and the second electrode. The separator layer is formed of a polymer that has a polymer backbone with cyclic groups that are free of unsaturated nitrogen and one or more polar groups bonded between the cyclic groups.

公开(公告)号：US20190170409A1

公开(公告)日：2019-06-06

申请号：US16313762

申请日：2016-06-27

Applicant: United Technologies Corporation

Inventor： Scott Alan Eastman ,  Joseph V. Mantese ,  Wei Xie ,  Subramanyaravi Annapragada ,  Parmesh Verma ,  Sergei F. Burlatsky ,  Wayde R. Schmidt ,  Treese Hugener-Campbell

IPC: F25B21/00 ,  H01L37/02

Abstract: A heat transfer system is disclosed in which, an electrocaloric material includes a copolymer of a monomer mixture including (i) vinylidene fluoride, (ii) an addition polymerization monomer selected from tetrafluoroethylene, trifluoroethylene, or a monomer smaller than trifluoroethylene, and (iii) a halogenated addition polymerization monomer different than (ii) that is larger than vinylidene fluoride. The electrocaloric material also includes an additive selected from a nucleating agent having a polar surface charge, electrocalorically active solid particles, or a combination thereof. Electrodes are disposed on opposite surfaces of the electrocaloric material, and an electric power source is configured to provide voltage to the electrodes. The system also includes a first thermal flow path between the electrocaloric material and a heat sink, and a second thermal flow path between the electrocaloric material and a heat source.