Page 387 - Lindens Handbook of Batteries

14.52 PriMAry BATTerieS

3.5
Load:15 kΩ (≅190 µA)
3.0
70°C
Cell voltage, V 2.5 –20°C 23°C

2.0

1.5

0 20 40 60
Discharge time in days
FIGURE 14.44 Typical discharge performance of Li/MnO coin-type battery (230 mAh) at
2
various temperatures. (Courtesy of Sanyo Electric Co., Ltd.)

100

80
70°C
Cell capacity, mAh 60 23°C 0°C –20°C

40

20
End voltage: 2.0 V
0.5 1 3 5 10 30 50
Discharge load, kΩ
FIGURE 14.45 Delivered capacity of Li/MnO coin-type (80 mAh size) at various tempera-
2
tures and loads. (Courtesy of Sanyo Electric Co., Ltd.)

The Li/MnO coin-type battery is capable of performing over a wide temperature range, from
2
about -20 to 70°C, as shown in Fig. 14.44.
The discharge characteristics of the Li/MnO battery are summarized in Fig. 14.45, which shows
2
the percent capacity delivered at various temperatures and discharge loads.
Discharge Characteristics of Cylindrical Bobbin Batteries. Typical discharge curves for the Li/MnO
2
cylindrical bobbin batteries are given in Fig. 14.46. These bobbin electrode batteries are designed
for use at low to moderate discharge rates, delivering higher capacities at these discharge rates than
the spirally wound electrode batteries of the same size (see Table 14.18). The discharge profile is
fairly flat at these low rates throughout most of the discharge, with the typical gradual slope near