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US 6,585,869 B2Granted
Means of maintaining compression of the active area in an electrochemical cell
AssigneeProton Energy Systems, Inc.
InventorsJason K. Shiepe, Mark E. Dristy, Trent M. Molter, Lawrence C. Moulthrop, Jr.
Life of this patent
Estimating the term…
Abstract
The present invention relates to a unique electrochemical cell stack which employs an electrically conductive pressure pad. The pressure pad is composed of material compatible with the electrochemical cell environment and is disposed on the high pressure side of the membrane assembly, in intimate contact with the high pressure side screen pack.
Claims32
An electrochemical cell, comprising:
- a) a high pressure side electrode;
- b) a low pressure side electrode;
- c) a membrane disposed between and in intimate contact with said high pressure side electrode and said low pressure side electrode;
- d) means for providing a low pressure flow field;
- e) means for providing a high pressure flow field;
- and
- f) an electrically conductive pressure pad located adjacent to and in intimate contact with said high pressure flow field.
4 more elements
An electrochemical cell, comprising:
- a) a high pressure side electrode;
- b) a low pressure side electrode;
- c) a membrane disposed between and in intimate contact with said high pressure side electrode and said low pressure side electrode;
- d) a low pressure flow field;
- e) a high pressure flow field;
- and
- f) an electrically conductive pressure pad located adjacent to and in intimate contact with said high pressure flow field.
4 more elements
Dependencies are inferred from the claim text.