Appeal No. 1996-2758
Application No. 08/103,792
used in known lithium electrochemical cells may be employed.
See specification, page 10. However, appellants claim only
those preferred non-aqueous solvents which have a certain
functional property, i.e., a donor number not larger than 5.
These preferred solvents include, inter alia, 1, 2-
dichloroethane. See claims 1 and 20, in conjunction with
specification, page 11. The specification states (page 6)
that:
When the non-aqueous electrolyte of the invention is
used [in a secondary cell], Al can be reversibly
electrodedeposited from and dissolved in the non-
aqueous electrolyte. Accordingly, it will be
possible to fabricate a secondary cell which
exhibits good charge and discharge characteristics
and has a high energy density.
As evidence of obviousness, the examiner relies on the
disclosure of Horiba. We find that Horiba discloses an
electrolyte useful for a secondary battery cell. See column
1, lines 43-45. The electrolyte contains “a dopant consisting
of an anion and a cation . . .”. See column 1, lines 46-47.
The electrode used in a secondary cell is “made of a material
which is capable of being reversibly converted into highly
conductive substance by doping anions or cations thereinto
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