Page 404 - Lindens Handbook of Batteries

LiTHiUM PriMAry BATTerieS 14.69

3.2
3.0
2.8
2.6 85°C
60°C
Voltage, V 2.4 45°C
20°C
2.2
2.0 0°C
1.8
–20°C
1.6
–40°C
1.4
0.001 0.01 0.1 1 10 100 1000 10000
Discharge current, mA
FIGURE 14.67 Mid-point voltage for Li/CFx 2/3 A-size cylindrical battery as a function of temperature
and discharge current.

8
20°C 6 5
0°C
10
Discharge current, mA/cm 3 6 –20°C 50°C 4 3 2 1.5 Discharge current, mA/g
8
5
4
3
2

6 8 10 20 40 60 80 100 150 1
Hours of service
FIGURE 14.68 Service life of Li/(CF) cylindrical battery at vari-
n
ous discharge rates and temperatures; 1.8 V end voltage. (Courtesy of
Panasonic Corp. of North America.)

2
Fig. 14.69, which shows the discharge characteristics of the A-size cell at a 20-μA discharge rate
3
over a period of 7 years. Voltage delay after storage is not apparent with these cells, except under
severe discharge conditions.

14.9.4 Cell and Battery Types
The Li/(CF) batteries are manufactured in a number of coin, cylindrical, and pin configurations. The
n
major electrical and physical characteristics of some of these batteries are listed in Table 14.21a and b.