Solid porous zinc electrodes and methods of making same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 6, 2007
Grant Date -
May 4, 2006
app pub date -
Nov 1, 2004
filing date -
Nov 1, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A solid porous zinc electrode for use in alkaline-zinc batteries, zinc-air batteries and fuel cells is provided which comprises specific zinc filaments, fibers, threads or strands compressed into a physically-stable wooly mass to form the electrode with a controlled geometrical shape and porosity distribution. Differential densification incorporates ribs, borders, grids or tabs for good structural integrity, mechanical strength, electrochemical behavior, and electrical conductivity. Pressing in a mold or rolling of a compressed sheet can also provide an anode with a large anode/cathode interface area and a complex geometry. The filaments of controlled dimension and composition are preferably made by spin forming from molten zinc alloys. Such anodes are not susceptible to breakage, have a long storage life and can be used in high rate discharge applications.
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