Page 105 - Battery Reference Book

Secondary batteries 2/21

1.2
1 .o

0.8
0.6
‘Nickel-iron
0.4
0.2 c
I- I I I I I I I I I I
0 1 2 3 4 5 6 7 8 9 10
Discharge time (h)
Figure 2.10 Typical discharge characteristics of various secondary battery systems of equal weight discharging under the
same conditions

Table 2.12 Energy density data quoted by different manufacturers for rechargeable batteries

Tjpe Source wfig W h/dm3
Nickel-zinc Theoretical 374 -
Yardne y 44-77 79-134
Eagle Picher 29-75 52-126
Other sources up to 66 134
Other sources 33-77 67-134
Nickel-cadmium Nife 24-33 61-90
sealed Button mass 21-22 61-62
Round mass 22 69
Round sintered 27 78
Rectangular mass 18 37
Rectangular sintered 21 52
Other sources 26-37 61-85
(Vented) 26-44 61-99
Silver-zinc Theoretical 440 -
Yardney 70- 120 150-250
Eagle Picher 55-209 (as cells) 80-415
Eagle Picher 37-114 55-262
(as batteries)
Other sources 123 220
Other sources 130 -
Other sources 55-220 80-610
Silver-cadmium Theoretical 310 -
Yardney 48-75 (as cells) 91-165
Yardney 18-51 -
(as batteries)
Eagle Picher 24-73 (as cells) 40-171
Eagle Picher 18 to 44 24-122
(as batteries)
Other sources 77 171
Other sonrces 24-120 37-250
Lead-acid Sonnenschein (sealed) 23-34 51-83
Other sources 22-33 49-83