Panasonic Intellectual Property Management Co., Ltd.

Takehito Goto

Tomohiro Kuroha

Yoichiro Tsuji

Atsuo Okaichi

Takashi Kakuwa

Shigenori Onuma

Tomoya Kamata

Yuichi Mikami

Yuji Okuyama

Takeshi Terayama

Kosuke Yamauchi

Kosuke Nunoo

Kyohei Kawada

A membrane electrode assembly of an electrochemical device includes a proton conductive solid electrolyte membrane and an electrode including Ni and an electrolyte material which contains as a primary component, at least one of a first compound having a composition represented by BaZrMO(Mrepresents at least one element selected from trivalent elements each having an ion radius of more than 0.720 A&#xb0; to less than 0.880 A&#xb0;, and 0&#x3c;x&#x3c;1 holds) and a second compound having a composition represented by BaZrTmO(0&#x3c;x&#x3c;0.3 holds).

Membrane electrode assembly of electrochemical device, membrane electrode assembly of fuel cell, fuel cell, membrane electrode assembly of electrochemical hydrogen pump, electrochemical hydrogen pump, membrane electrode assembly of hydrogen sensor, and hydrogen sensor

The fuel cell of the present disclosure includes: a fuel single cell comprising a fuel electrode, an air electrode, and an electrolyte disposed between the electrodes; a separator for separating a fuel gas flowing through the fuel electrode and air flowing through the air electrode; and a sealing portion for hermetically bonding between the separator and the electrolyte, wherein the sealing portion is constituted of a glass composition containing at least two of metallic or metalloid elements contained in the electrolyte and at least two of metallic or metalloid elements contained in the separator; the electrolyte includes a proton conductor; and the proton conductor is represented by a compositional formula: BaZrMO, where 0.05&#x2264;x&#x2264;0.5; and M is at least one selected from the group consisting of Sc, In, Lu, Yb, Tm, Er, Y, Ho, Dy, and/or Gd.

Fuel cell

The fuel cell of the present disclosure includes: a unit cell including: a fuel electrode, an air electrode and electrolyte disposed between the fuel electrode and the air electrodes; a separator for separating a fuel gas flowing though the fuel electrode and air flowing through the air electrode; and a sealing constituted of a glass composition for bonding the separator and the electrolyte, and at least a surface region of the sealing portion exposed to the fuel gas and the air does not contain Ba.

Fuel cell including glass seal with barium free surface regions

Growing community of inventors

Osaka, Japan

Takehito Goto