Appeal No. 2001-0319
Application 09/005,841
energy density and power density are optimized by reducing the
thickness of the support material 116 and maximizing the surface
area of the coating layer 119 (col. 13, lines 8-12). Ahmad
discloses (col. 5, lines 26-43):
"Electrically conducting support material" refers to
any electrically conducting metal or metal alloy,
electrically conducting polymer, electrically conducting
ceramic, electrically conducting glass, or combinations
thereof. Metals and metal alloys are preferred for
producing stock units. Preferred metals include, for
example, the metals of the following preferred metal oxides
listed for the following second electrically conducting
materials. The support material should have a conductivity
-4
of greater than about 10 S/cm.
"Second electrically conducting material" (having a
high surface area) refers to a porous electrode coating
which may be of the same or different composition on each
side of the support material. Preferred metal oxides of the
present invention include those independently selected from
tin, lead, vanadium, titanium, ruthenium, tantalum, rhodium,
osmium, iridium, iron, cobalt, nickel, copper, molybdenum,
niobium, chromium, . . . . [Emphasis added.]
As shown in figure 14, both facing surfaces of a cell are shown
with porous coatings. Ahmad further discloses that metal carbide
coatings can be used to replace the metal oxide coatings and that
metal carbides include any of the metals of the Periodic Table
(col. 7, lines 14-19).
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