公开(公告)号：US20190097241A1

公开(公告)日：2019-03-28

申请号：US16085712

申请日：2017-03-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Brian T. Weber ,  Brandon A. Bartling ,  Onur S. Yordem ,  Raymond P. Johnston ,  Andrew T. Haug ,  John E. Abulu ,  Gregory M. Haugen ,  Kazuki Noda ,  Shunsuke Suzuki ,  Jimmy M. Le ,  Blake R. Griffith ,  Daniel E. Johnson ,  Bharat R. Acharya ,  Bradley W. Eaton ,  Michael D. Romano ,  Daniel M. Pierpont ,  David J. Miller ,  Eric J. Iverson

IPC: H01M4/86 ,  H01M4/88 ,  H01M8/1004 ,  H01M8/18

Abstract: The present disclosure relates to electrode assemblies, membrane-electrode assemblies and electrochemical cells and liquid flow batteries produced therefrom. The electrode and membrane-electrode assemblies include (i) a porous electrode having a first major surface with a first surface area, Ae, an opposed second major surface and a plurality of voids; (ii) a discontinuous transport protection layer, comprising polymer, disposed on the first major surface and having a cross-sectional area, Ap, substantially parallel to the first major surface; and (iii) an interfacial region wherein the interfacial region includes a portion of the polymer embedded in at least a portion of the plurality of voids, a portion of the porous electrode embedded in a portion of the polymer or a combination thereof; and wherein 0.02Ae≤Ap≤0.85Ae and the porous electrode and discontinuous transport protection layer form an integral structure. The disclosure further provides methods of making the electrode assemblies and membrane-electrode assemblies.

公开(公告)号：US20190181461A1

公开(公告)日：2019-06-13

申请号：US16324519

申请日：2017-08-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Brian T. Weber ,  Brandon A. Bartling ,  Onur Sinan Yordem ,  Andrew T. Haug ,  John E. Abulu ,  Gregory M. Haugen ,  Kazuki Noda ,  Shunsuke Suzuki ,  Bharat R. Acharya ,  Daniel M. Pierpont ,  David J. Miller ,  Eric J. Iverson

IPC: H01M8/0273 ,  H01M8/0276 ,  H01M8/0297 ,  H01M8/18

Abstract: The present disclosure relates membrane-electrode assemblies and electrochemical cells and liquid flow batteries produced therefrom. The membrane-electrode assemblies include a first porous electrode; an ion permeable membrane, having a first major surface and an opposed second major surface; a first discontinuous transport protection layer disposed between the first porous electrode and the first major surface of the ion permeable membrane; and a first adhesive layer in contact with the first porous electrode and at least one of the first discontinuous transport protection layer and the ion permeable membrane. The first adhesive layer is disposed along the perimeter of the membrane-electrode assembly. The first porous electrode and first discontinuous transport protection layer, without the presence of the first adhesive layer, are not an integral structure and the membrane-electrode assembly is an integral structure