Appeal 2007-1524
Application 09/770,725
1 describes a cylindrical non-aqueous secondary battery in which an electrode
2 assembly 3 is constructed such that a strip-like laminate body comprising a
3 positive electrode 4, a separator 5, and a negative electrode 6 stacked in this
4 order is spirally wound with the separator being disposed at the outermost
5 side of the electrode assembly 3. (Takami, 4:7-15; fig. 1.) Takami further
6 teaches that the positive electrode may be made from “various kinds of
7 oxides,” thus indicating to one skilled in the relevant art that the oxides for
8 use as the positive electrode material are not particularly limited, but states
9 that lithium cobalt oxide, lithium nickel oxide, and lithium manganese oxide
10 are preferred. (Takami, 4:39-49.) Takami also teaches that the
11 carbonaceous material of the negative electrode should be a multi-phase
12 structure having a region of graphite structure and a region of amorphous
13 carbon structure. (Takami, 5:2-7.) As to the non-aqueous electrolyte,
14 Takami discloses that a lithium salt such as lithium hexafluorophosphate
15 (LiPF6), among other possibilities, may be incorporated. (Takami, 10:41-
16 48.)
17 That Takami describes a “positive electrode active substance
18 comprising lithium manganese oxide,” a “negative electrode active
19 substance comprising at least one material selected from the group
20 consisting of amorphous carbonaceous material and graphitized
21 carbonaceous material,” “a non-aqueous electrolytic solution containing a
22 lithium compound as an electrolyte,” and “an electrode unit produced by
23 winding or laminating a positive electrode and a negative electrode via a
24 separator,” all as recited in appealed claim 1, is not contested.
25 Watanabe discloses a non-aqueous electrolyte secondary battery
26 comprising a lithium-containing silicon oxide electrode as a negative
11
Page: Previous 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Next
Last modified: September 9, 2013