Metal gas batteries
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Mar 13, 2003
app pub date -
Sep 7, 2001
filing date -
Aug 22, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An improved gas-diffusion cathode for use in an electrochemical cell comprising an electrically conductive cathode member having a first side communicable with an aqueous electrolyte and a second side communicable with a gaseous medium; and a water-impermeable membrane adjacent said cathode member second side to reduce passage of liquid water between said cathode member and said gaseous medium and having a membrane first side and a membrane second side wherein said membrane first side faces said cathode member and wherein said water-impermeable membrane comprises one or more portions defining one or more openable and closeable apertures the improvement wherein said apertures are associated with one or more integrally-formed resiliently flexible flaps on said membrane first side to effect said opening and closing. The batteries have reduced unwanted water vapour ingress and egress characteristics in its no-load mode.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully