公开(公告)号：US20200058945A1

公开(公告)日：2020-02-20

申请号：US16476502

申请日：2018-02-21

Applicant: Sakai Chemical Industry Co., Ltd.

Inventor： Seiichi YANO ,  Hiroshi TSUTSUMI ,  Miho KISHI ,  Akihiro UEMURA ,  Mayu OTA

IPC: H01M4/92 ,  C01G23/04 ,  H01B1/08 ,  H01M8/10

Abstract: The present invention provides an electrically conductive material having excellent resistance to a high potential and strongly acidic environment and high electrical conductivity; and an electrode material and a fuel cell each including the same. The present invention also provides a method for simply and easily producing such an electrically conductive material. The present invention relates to an electrically conductive material including a titanium suboxide particulate powder, the titanium suboxide particulate powder including a rutile crystalline phase as a main phase, and having a composition of TiOn wherein n is 1.5 or more and 1.90 or less, and a brightness L* in the L*a*b*color system of 35 to 45.

公开(公告)号：US20190237772A1

公开(公告)日：2019-08-01

申请号：US16340959

申请日：2017-10-19

Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.

Inventor： Keiichi TABATA ,  Seiichi YANO ,  Hiroshi TSUTSUMI ,  Jun NAITO ,  Mayu OTA ,  Miho KISHI

IPC: H01M4/92

CPC classification number: H01M4/925 ,  H01M4/86 ,  H01M4/88 ,  H01M4/90 ,  H01M4/92 ,  H01M8/10 ,  H01M2008/1095 ,  Y02P70/56

Abstract: The present invention provides an electrode material having excellent resistance to a high potential and strongly acidic environment, high conductivity, and excellent electrochemical properties; and a fuel cell including the same. The present invention also provides a method for simply and easily producing such an electrode material. The present invention relates to an electrode material containing: a titanium suboxide carrier whose crystal phase is single-phase Ti4O7 and having a specific surface area of 10 m2/g or more; and a noble metal and/or its oxide supported on the carrier.