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1. US20200321627 - ELECTROCHEMICAL CELL

官庁 アメリカ合衆国
出願番号 16907846
出願日 22.06.2020
公開番号 20200321627
公開日 08.10.2020
公報種別 A1
IPC
H01M 4/90
H電気
01基本的電気素子
M化学的エネルギーを電気的エネルギーに直接変換するための方法または手段,例.電池
4電極
86触媒により活性化された無消耗性電極,例.燃料電池のためのもの
90触媒の選択
H01M 8/02
H電気
01基本的電気素子
M化学的エネルギーを電気的エネルギーに直接変換するための方法または手段,例.電池
8燃料電池;その製造
02細部
H01M 8/12
H電気
01基本的電気素子
M化学的エネルギーを電気的エネルギーに直接変換するための方法または手段,例.電池
8燃料電池;その製造
10固体電解質をもつ燃料電池
12高温で動作するもの,例.安定化ZrO↓2をもつもの
CPC
H01M 2008/1293
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
12operating at high temperature, e.g. with stabilised ZrO2 electrolyte
1293Fuel cells with solid oxide electrolytes
H01M 4/9033
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
90Selection of catalytic material
9016Oxides, hydroxides or oxygenated metallic salts
9025Oxides specially used in fuel cell operating at high temperature, e.g. SOFC
9033Complex oxides, optionally doped, of the type M1MeO3, M1 being an alkaline earth metal or a rare earth, Me being a metal, e.g. perovskites
H01M 8/12
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
12operating at high temperature, e.g. with stabilised ZrO2 electrolyte
H01M 8/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
出願人 NGK INSULATORS, LTD.
発明者 Shinji FUJISAKI
Takashi RYU
Makoto OHMORI
優先権情報 2019-014748 30.01.2019 JP
発明の名称
(EN) ELECTROCHEMICAL CELL
要約
(EN)

An electrochemical cell includes a fuel electrode, an air electrode containing a perovskite type oxide as a main component, the perovskite type oxide being represented by a general formula ABO3 and containing La and Sr at the A site, and a solid electrolyte layer arranged between the fuel electrode and the air electrode. The air electrode includes a first portion and a second portion, the first portion being located on the most upstream side in a flow direction of an oxidant gas that flows through a surface of the air electrode, the second portion being located on the most downstream side in the flow direction. A first ratio of an La concentration to an Sr concentration detected at the first portion through Auger electron spectroscopy is at least 1.1 times a second ratio of an La concentration to an Sr concentration detected at the second portion through Auger electron spectroscopy.

他の公開
DE112020000010