Appeal 2006-3027
Application 10/369,706
OPINION
We determine the following factual findings from the record in this
appeal:
(1) Maruta discloses a sintered nickel porous plaque substrate for
alkaline storage batteries including a layer of nickel oxyhydroxide
active material that prevents the nickel skeleton from corroding
and an outside layer of cobalt oxyhydroxide that improves the
electric conductivity (Abstract; Figure 2; col. 3, ll. 33-59; col. 4, ll.
11-26; and col. 8, ll. 1-8; Answer 3-4);
(2) Kimiya discloses an active material used in a positive electrode for
alkaline storage batteries which exhibits high energy density (col.
1, ll. 5-10 and 36-38);
(3) Kimiya teaches that the main active material of a positive
electrode in industrial Ni-Cd storage batteries has been nickel
oxide (NiOOH), while recently the conventional substrate of the
electrode (sintered nickel plaque) has been replaced by a network
substrate having a higher porosity, and thus a higher energy
density when filled with active material (e.g., a foamed nickel
substrate) (col. 1, ll. 41-57);
(4) Kimiya teaches that problems of low conductivity have occurred
for foamed nickel substrates, which require the incorporation of
various metallic elements (col. 1, l. 59-col. 2, l. 10); and the
incorporation of metallic elements into the active material has
been known “for a long time” when using a sintered substrate (col.
2, ll. 17-24);
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