End-plate assembly of an electrochemical cell with a polymer elctrolyte membrane construction
The end-plate assembly clamps an electrochemical cell or a stack of electrochemical cells with a polymer electrolyte membrane construction, in addition to forming the contact. An end plate ( 1 ) consisting of a synthetic material or metal, which is used to introduce the compressive forces into the c...
Saved in:
| Main Authors | , |
|---|---|
| Format | Patent |
| Language | English |
| Published |
17.06.2004
|
| Online Access | Get full text |
Cover
Loading…
| Summary: | The end-plate assembly clamps an electrochemical cell or a stack of electrochemical cells with a polymer electrolyte membrane construction, in addition to forming the contact. An end plate (
1
) consisting of a synthetic material or metal, which is used to introduce the compressive forces into the cells or the cell stack, is provided. The end plate (
1
) is provided with a compensation layer (
5
) in the vicinity of the cell, which evens out the force introduction into the cell or the stack over the surface. The compensation layer (
5
) is covered with an electrically conductive layer (
6
), in order to form the electric connection (
7
) to the cell. The electrically conductive layer (
6
) is coupled to a connection (
7
) that is externally accessible. The compensation layer is formed by a material that is free-flowing under pressure, in such a way that it can be manipulated like a solid or pasty material during assembly, but takes on substantially liquid and thus excellent pressure distribution properties after the application of the clamping forces to the cell stack. |
|---|