Appeal 2007-1524
Application 09/770,725
1 14. Watanabe discloses a non-aqueous electrolyte secondary battery
2 comprising a lithium-containing silicon oxide electrode as a
3 negative electrode, either a lithium-containing titanium oxide or
4 lithium-containing iron sulfide as a positive electrode, and a
5 non-aqueous electrolyte. (Watanabe, 3:45-50.)
6 15. Watanabe teaches that the negative electrode may contain non-
7 metals such as carbon in addition to the lithium-containing
8 silicon oxide and specifically discusses the use of calcined
9 carbonaceous compounds capable of absorbing and releasing
10 lithium ion or lithium metal. (Watanabe, 6:2-14, 7:37-40.)
11 16. Watanabe also teaches that the positive electrode material may
12 contain other metals such as nickel and manganese in addition
13 to lithium and titanium. (Watanabe, 8:22-34.)
14 17. Watanabe discloses the use of lithium salts such as lithium
15 phosphorus hexafluoride (LiPF6) as the electrolyte. (Watanabe,
16 12:44-46.)
17 18. Watanabe discloses the desirability of the battery to be
18 assembled in a moisture-free atmosphere. (Watanabe, 14:37-
19 38.)
20 19. Watanabe discloses the moisture content to be preferably 2,000
21 ppm or less for the entire battery and 50 ppm for the positive
22 electrode mixture, the negative electrode mixture, or the
23 electrolyte from the point of cycle property. (Watanabe, 14:47-
24 51.)
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