Appeal 2007-0693
Application 10/188,519
1 such as acrylic and alkacrylic acids or their esters.
2 [Emphases added.]
3
4 10. That Boer describes a non-aqueous electrolyte battery
5 comprising a rechargeable positive electrode, a non-aqueous
6 liquid electrolyte, and a negative electrode comprising a
7 negative electrode on a current collector is not contested.
8 (Br. 11-15.)
9 11. Appellants do not dispute the examiner’s factual finding that
10 Boer teaches a negative electrode material comprising a
11 mixture of (1) a graphite capable of absorbing and desorbing
12 lithium and (2) a ethylene-propylene interpolymer binder.
13 (Examiner’s Answer at 3-5; Br. 11-15.)
14 12. Table 17 of the present Specification provides data for four
15 classes of batteries (D1-D4) in which the ethylene-propylene
16 content of the binder polymer is varied (60%, 70%, 80%,
17 95%, and 98%).
18 13. Table 17 reports the corresponding discharge capacities and
19 electrode strengths for batteries D1-D4.
20 14. According to the present specification, “low-temperature
21 discharge characteristic was assessed by discharging at a
22 constant discharge current of 900 mA until a discharge
23 termination voltage of 3.0 V is reached after a constant-
24 current constant-voltage charging at a charging current of
25 630 mA at a charging voltage of 4.2 V for a charging time of
8
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