公开(公告)号：US10707494B2

公开(公告)日：2020-07-07

申请号：US15767303

申请日：2016-10-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tsutomu Kawashima ,  Keiichi Kondou ,  Masashi Shoji ,  Koji Ogawa

IPC: H01M4/86 ,  H01M4/88 ,  H01M8/02 ,  H01M4/96 ,  H01M8/0243 ,  H01M8/10 ,  H01M8/0239 ,  H01M8/0234

Abstract: Disclosed is a gas-diffusion layer used for fuel cells, including: a porous material that includes as main ingredients conductive particles and a polymer resin, wherein said gas-diffusion layer internally possesses pores with a size from 0.01 μm to 0.05 μm, and hollows with a size from 1 μm to 200 μm. Further disclosed is a process for producing a gas-diffusion layer used for fuel cells, including: (i) kneading conductive particles, a polymer resin, a pore-forming agent, a surfactant, and a dispersion solvent; (ii) rolling the mixture obtained in Step (i) to shape said mixture into a sheet; (iii) baking the sheet-shaped mixture to sublime the pore-forming agent, thereby forming hollows therein, and to remove the surfactant and the dispersion solvent; and (iv) further rolling the baked mixture to adjust a thickness of the baked mixture.

公开(公告)号：US10714761B2

公开(公告)日：2020-07-14

申请号：US15695036

申请日：2017-09-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuya Yamasaki ,  Hitoshi Ishimoto ,  Masashi Shoji ,  Keiichi Kondou

IPC: H01M4/90 ,  H01M4/86 ,  H01M4/88 ,  H01M4/92 ,  H01M8/02 ,  H01M8/10 ,  H01M8/1004 ,  B01J23/42

Abstract: A fuel cell catalyst layer includes a plurality of carbon particles, a plurality of catalyst particles, and at least one plate-shaped carbon member disposed between the plurality of carbon particles. The plurality of catalyst particles are supported on surfaces of the plurality of carbon particles. The plate-shaped carbon member may be replaced with a rod-shaped carbon member.

公开(公告)号：US10388966B2

公开(公告)日：2019-08-20

申请号：US15823571

申请日：2017-11-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Keiichi Kondou ,  Kazuya Yamasaki ,  Hitoshi Ishimoto

IPC: H01M4/90 ,  B01J23/42 ,  B01J35/08 ,  H01M8/1004 ,  H01M4/92 ,  H01M8/083 ,  H01M8/1018

Abstract: An electrode catalyst material includes graphite particles and catalyst particles. Each of the graphite particles has a hollow structure that includes an outer shell, and the outer shell has at least one of a through-hole and a recess. Each of the catalyst particles is supported by the at least one of through-hole and recess.

公开(公告)号：US20180083291A1

公开(公告)日：2018-03-22

申请号：US15823571

申请日：2017-11-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Keiichi Kondou ,  Kazuya Yamasaki ,  Hitoshi Ishimoto

IPC: H01M4/90 ,  H01M8/1004

CPC classification number: H01M4/9058 ,  B01J23/42 ,  B01J35/023 ,  H01M4/9083 ,  H01M4/926 ,  H01M8/083 ,  H01M8/1004 ,  H01M2008/1095

Abstract: An electrode catalyst material includes graphite particles and catalyst particles. Each of the graphite particles has a hollow structure that includes an outer shell, and the outer shell has at least one of a through-hole and a recess. Each of the catalyst particles is supported by the at least one of through-hole and recess.