Rechargeable lithium-ion battery VL12 V
Rechargeable lithium-ion battery
VL12 V - Very High Power Cell
Optimized for 2 C to 100 C continuous
discharge or up to 250 C pulse power
Benefits
• Excellent power density and
specific power • Power capability at cold
temperature
• 100% coulombic efficiency
• Completely maintenance-free
• Operates in any orientation
• Long cycle life:
- > 80% of initial capacity
remaining after 2,000 cycles at
100% DOD
- > 500,000 cycles during shallow
cycling (50C Δ ~3% DOD)
• Projected 15 years calendar life
for military hybrid electric vehicle
applications
• No memory effect
• Integral safety vent
Cell electrical characteristics
Main applications
• Military hybrid electric vehicles
• Very high pulse power applications
• Defense
Cell operating conditions
Key features
• Graphite-based negative
• Nickel-oxide based positive
• Hermetically-sealed cells
• Sold only as assembled batteries
• Incorporating electronics for
performance efficiency:
- Charge/floating/discharge
management
- Cell balancing
February 2007
Nominal voltage
Nominal capacity at C rate at 4.1 V/2.5 V & 25° C
Maximum discharge current at 25° C:
Continuous
2 s Pulse
100 ms Pulse
Specific energy
Energy density¹
Specific power at 25° C, 50% SOC (2.5 V)
Power density¹ (25° C/peak pulse/50% SOC)
2 s pulse at -30° C at 50% SOC (1.9 V)
3.6 V
12 Ah
1500 A
2200 A
3200 A
74 Wh/kg
175 Wh/l
5,000 W/kg*
6,900 W/kg**
12,000 W/kg***
12,000 W/l*
16,000 W/l**
29,000 W/l***
2150 W/kg
Cell mechanical characteristics
Diameter max
Height max¹ Mass max
Volume max ¹
47 mm
173 mm
0.64 kg
0.27 l
Lower voltage limit for discharge:
Continuous (- 20 C to + 45 C) pulse
2.5/2.0 V
Pulse
1.9 V
Charging method Constant current/Constant voltage (CCCV)
Charging voltage
4.1 + 0.04 V
Recommended continuous charge current at 25° C
C/1 (2.5 hours)
End of charge detection
100 mA
Total charging time:
15 C (80% SOC)
20 minutes
5 C (85% SOC)
50 minutes
Operating temperature
Charge
+ 5° C to + 35° C
Discharge
- 30° C to + 60° C
Storage and transportation temperature
- 40° C to + 65° C
¹Includes terminals
*18 s pulse (2.5 V)
**2 s pulse (2.5 V)
***200 ms pulse at 100% SOC (2.5 V)
Battery-level safety
• Incorporation of several levels of
redundant safety features
• Prevent abuse conditions such as
overcharge, over-discharge, and
short-circuit
• Battery protection controller at
battery pack level
• CANProbe at module level
• Vent and shutdown separator at cell
level
1-C
5-C
10-C
15-C
20-C
3.5
3
2.5
2
1.5
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
% of Nominal capacity
Rate performance at 25° C
4.1
1-C
10-C
20-°C
40-C
80-C
100-C
3.9
Loaded cell voltage (V)
VL12 V
Loaded cell voltage (V)
Rate capability at - 30° C
4
3.7
3.5
3.3
3.1
2.9
2.7
2.5
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
% of C-rate capacity measured at 25° C
4.1
Rate capability at 360 A
60° C
Loaded cell voltage (V)
3.9
40° C
25° C 10° C 0° C -10° C -20° C
3.7
3.5
3.3
3.1
2.9
2.7
2.5
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100% 110%
% of Nominal capacity
Energy delivered at 2000A/25° C, 4.1 V/2.5 V
5
4.5
6000
Power (W)
4
Power
5000
3.5
3
4000
2.5
3000
2
Cumulative energy
2000
1.5
1
1000
0
0.5
0
0
0.5
1
1.5
Time (s)
Saft America, Inc.
Space & Defense Division
Doc N° 54050-2-0207
Edition: February 2007
107 Beaver Court
Cockeysville, MD 21030 - USA
Tel +1 410 771 3200
Fax +1 410 771 1144
Data in this document are subject to change without notice and
become contractual only after written confirmation by Saft.
www.saftbatteries.com
Produced by Saft America, Inc. - Space & Defense Division
Published by the Communications Department
Photo credit: Saft
2
2.5
3
Energy (Wh)
7000
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising