公开(公告)号：US09700850B2

公开(公告)日：2017-07-11

申请号：US14783873

申请日：2013-04-12

Applicant: General Electric Company

Inventor： Kai Zhang ,  John H. Barber ,  Russell James MacDonald ,  Yongchang Zheng ,  Li May Goh ,  Yan Gao ,  Yonghong Zhao

IPC: B01D69/12 ,  C08J5/22 ,  H01M8/10 ,  H01M8/103 ,  H01M8/1051

CPC classification number: B01D69/125 ,  C07D303/16 ,  C08J5/2231 ,  C08J5/2275 ,  H01M8/103 ,  H01M8/1051 ,  Y02E60/521 ,  Y02P70/56

Abstract: An ion exchange membrane and a method of making it. The membrane may be used, for example, in an electrodialysis module or electrochemical cell. The membrane comprises an ion exchange polymer and inorganic particles preferably linked to the ion exchange polymer. To make a membrane, inorganic particles are mixed into an ion exchange membrane pre-cursor. A polymerization initiator or catalyst is then added and the resulting mixture is placed in a form and cured. The inorganic particles may comprise, for example, an oxidized form of graphite such as graphite oxide. The ion exchange polymer may comprise an ionic monomer, containing a quaternary ammonium group for anion exchange or a sulfonate group for cation exchange, along with a crosslinking co-monomer containing polymerizable diacrylic functionalities. The membrane is self-supporting and can be made without a supporting fabric.

公开(公告)号：US10221289B2

公开(公告)日：2019-03-05

申请号：US15613949

申请日：2017-06-05

Applicant: General Electric Company

Inventor： Kai Zhang ,  John H. Barber ,  Russell James MacDonald ,  Yongchang Zheng ,  Li May Goh ,  Yan Gao ,  Yonghong Zhao

IPC: C08J5/22 ,  H01M8/10 ,  C02F1/42 ,  H01M8/103 ,  H01M8/1051 ,  H01M8/22

Abstract: This specification describes an ion exchange membrane and a method of making it. The membrane may be used, for example, in an electrodialysis module or electrochemical cell. The membrane comprises an ion exchange polymer and inorganic particles preferably linked to the ion exchange polymer. To make a membrane, inorganic particles are mixed into an ion exchange membrane pre-cursor. A polymerization initiator or catalyst is then added and the resulting mixture is placed in a form and cured. The inorganic particles may comprise, for example, an oxidized form of graphite such as graphite oxide. The ion exchange polymer may comprise an ionic monomer, containing a quaternary ammonium group for anion exchange or a sulfonate group for cation exchange, along with a crosslinking co-monomer containing polymerizable diacrylic functionalities. The membrane is self-supporting and can be made without a supporting fabric.