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1. WO2019058902 - SPRING MEMBER, FUEL CELL UNIT, FUEL CELL STACK, AND METHOD FOR MANUFACTURING FUEL CELL STACK

Publication Number WO/2019/058902
Publication Date 28.03.2019
International Application No. PCT/JP2018/031819
International Filing Date 28.08.2018
IPC
H01M 8/0247 2016.01
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
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
0247characterised by the form
H01M 8/0297 2016.01
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
0297Arrangements for joining electrodes, reservoir layers, heat exchange units or bipolar separators to each other
H01M 8/2432 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
24Grouping of fuel cells, e.g. stacking of fuel cells
241with solid or matrix-supported electrolytes
2425High-temperature cells with solid electrolytes
2432Grouping of unit cells of planar configuration
H01M 8/12 2016.01
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
CPC
H01M 2/10
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details or processes of manufacture of the non-active parts
10Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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 8/006
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
002Shape, form of a fuel cell
006Flat
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
H01M 8/0247
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
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
0247characterised by the form
H01M 8/0297
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
0297Arrangements for joining electrodes, reservoir layers, heat exchange units or bipolar separators to each other
Applicants
  • 日産自動車株式会社 NISSAN MOTOR CO., LTD. [JP]/[JP]
  • 日本発條株式会社 NHK SPRING CO., LTD. [JP]/[JP] (JP)
Inventors
  • 柳沼 基 YAGINUMA, Motoki
  • 田島 典拓 TAJIMA, Norihiro
  • 川崎 公一 KAWASAKI, Koichi
Agents
  • 八田国際特許業務法人 HATTA & ASSOCIATES
Priority Data
2017-18298122.09.2017JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) SPRING MEMBER, FUEL CELL UNIT, FUEL CELL STACK, AND METHOD FOR MANUFACTURING FUEL CELL STACK
(FR) ÉLÉMENT RESSORT, UNITÉ DE PILE À COMBUSTIBLE, ASSEMBLAGE DE PILES À COMBUSTIBLE, ET PROCÉDÉ DE FABRICATION DUDIT ASSEMBLAGE
(JA) バネ部材、燃料電池ユニット、燃料電池スタックおよび燃料電池スタックの製造方法
Abstract
(EN)
[Problem] To provide a spring member, a fuel cell unit, a fuel cell stack, and a method for manufacturing the fuel cell stack, wherein degradation in power generation performance caused by creep deformation of a spring member can be prevented. [Solution] According to the present invention, a grid spring has: a first erect piece 130A which generates an elastic force that presses a separator 102 toward a power generation cell; and a second erect piece 130B which generates an elastic force independently of the first erect piece, wherein heating the grid spring reduces the spring constant of the first erect piece, and before being heated, the grid spring functions as a high-reaction force spring because the spring constant of the first erect piece is larger than the spring constant of the second erect piece, and after being heated, the grid spring functions as a low-reaction force spring because the spring constant of the first erect piece is smaller than the spring constant of the first erect piece before being heated.
(FR)
Le problème décrit par la présente invention est de fournir un élément ressort, une unité de pile à combustible, un assemblage de piles à combustible et un procédé de fabrication dudit assemblage, pouvant empêcher la dégradation de la performance de production d'énergie due à la déformation par fluage d'un élément ressort. La solution selon l'invention porte sur un ressort de grille, comprenant : une première pièce érigée (130A), destinée à produire une force élastique qui presse un séparateur (102) vers un élément de production d'énergie; et une seconde pièce érigée (130B) destinée à produire une force élastique indépendamment de la première pièce érigée, le chauffage du ressort de grille réduisant la constante du ressort de la première pièce érigée, et le ressort de grille agissant en tant que ressort à force de réaction élevée avant d'être chauffé étant donné que la constante du ressort de la première pièce érigée est supérieure à celle de la seconde pièce érigée, et agissant en tant que ressort à faible force de réaction après avoir été chauffé étant donné que la constante du ressort de la première pièce érigée est inférieure à celle de la première pièce érigée avant d'être chauffé.
(JA)
【課題】バネ部材のクリープ変形に起因した発電性能の低下を防止できるバネ部材、燃料電池ユニット、燃料電池スタックおよび燃料電池スタックの製造方法を提供する。 【解決手段】グリッドバネは、発電セルに向かってセパレータ102を押圧する弾発力を発生させる第1起立片130Aと、第1起立片130Aとは独立して弾発力を発生させる第2起立片130Bと、を有し、第1起立片のバネ定数は、グリッドバネが加熱されることによって低下し、加熱前の状態では、第1起立片のバネ定数が第2起立片のバネ定数よりも大きいことによって高反力バネとして機能し、加熱後の状態では、第1起立片のバネ定数が加熱前の状態よりも小さいことによって低反力バネとして機能する。
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