Secondary Chemistries Overview
|
SLA |
NiCd |
NiMH |
Li-ion |
Li-Poly |
Renewal |
|
|
Cell Voltage: |
2V |
1.2V |
1.2V |
3.6V |
3.6V |
1.5V |
|
Energy by Weight: |
30
Watt Hour/Kilogram
|
40-60
Watt Hour/Kilogram
|
60-80
Watt Hour/Kilogram
|
105
Wh/kg to 130 Wh/kg
|
120
Wh/kg
|
80
watt-hr/kg (initial)
|
|
Energy by Volume: |
N/A
|
N/A
|
N/A
|
270
Wh/L to 325 Wh/L
|
250
Wh/L
|
220 watt-hr/liter (initial) |
|
Cycle Life: |
200-500
Cycles
|
500
to 5000 cycles.
|
500
Cycles
|
500
Cycles
|
500
Cycles
|
10
Cycles to 65% Capacity
|
|
Self Discharge: |
5%/month
|
20%/month
|
30%/month
|
10%/month
|
N/A
|
0.3%/month
|
|
Temperature Range: |
-20°
C to +60°C
|
-40°
C to +60°C
|
-20°
C to +60°C
|
-20°
C to +60° C
|
-20°
C to +60° C
|
0°C
to 50°C
|
|
Preferred Charge Methods: |
Constant
Voltage C/10 to C/4
|
Constant
Current
(-D V fast) |
DT/dt
-
Peak Voltage Detect and Timer |
Constant
Voltage/Constant Current
|
Constant
Current/Constant Voltage
|
Pulse/Taper
Charge Method
|
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|
Copyright © 1999 House of
Batteries All rights reserved
|
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