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Tadiran - HLC-1520A <BACK
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1. Scope This data sheet describes the mechanical design and performance of Tadiran HLC (Hybrid Layer
Capacitor) model HLC-1520A, optimized for extreme temperatures, used in a Pulses Plus battery.
2. Characteristics  
  2.1 Physical  
    2.1.1. Length: 19.7 ± 0.3 mm.
    2.1.2. Diameter: 15.1 mm. max.
    2.1.3. Weight: 7.7 ± 0.2 gr.
  2.2. Electrical  
   

2.2.1. Discharge

Discharge capacity (at RT):
When charged to 3.67V:
When charged to 3.90V:

Discharge end voltage:
Maximum discharge current:

 


140 A*sec
210 A*sec

2.5V (discharge below 2.5V at RT and
discharge below 2 V at –40°C may increase
the HLC internal impedance)

Continuous: 500 mA
Pulse: 2 A
 

2.2.2. Charge (constant current)

Max. charge voltage:
Max. charging current:

 

3.95 V
25 mA

  2.2.3. Shelf life (Reversible Capacity): The table below describes the shelf life at different storage temperatures to 80% of initial
capacity specified at paragraph 2.2.1.

Temperature
HLC used
independently
HLC in Pulses Plus battery
RT
3 years
10 years
60°C
4 weeks
7 years
85°C
1 week
At least 1 year

  2.2.4. Self discharge current:
      At RT: 1µA
      At 80°C: 5µA

  2.2.5. Number of charge-discharge cycles to 80% of initial capacity :

 
100% DOD
10% DOD
1% DOD
Charged to
3.67V
4000
40,000
400,000
Charged to
3.90V
1000
10,000
100,000
DOD (Depth Of Discharge)

  2.2.6. Cell impedance: Less than 250 mOhm (at RT @ 1kHz)

2.2.7. Performance Data:
VOLTAGE vs. TIME CURVES for HLC-1520A at Li/SOCl2 potential, 200 mA.
VOLTAGE vs. TIME CURVES for HLC-1520A at Li/SOCl2 potential, 350 mA.
VOLTAGE vs. TIME CURVES for HLC-1520A at Li/SO2Cl2 potential, 200 mA.
VOLTAGE vs. TIME CURVES for HLC-1520A at Li/SO2Cl2 potential, 350 mA.
Discharge capacity vs. OCV for HLC-1520A (at RT, 50mA discharge)
  
 

2.3. Safety:      
 

2.3.1. The HLC successfully passed the following tests:

  • Short circuit at RT
  • Short circuit at 55°C
  • Compression
  • Impact

 

  • Overcharge
  • High temperature exposure
  • Shock and vibration
  • Forced discharge
  Tadiran Batteries performed the tests according to UL 1642 specification for lithium batteries. The HLC was approved by UL under file no. MH12193 issued at December 7, 2000.
  2.3.2. The HLC is not restricted for air transportation.

  2.4. Temperature range:

 
HLC used
independently
HLC in Pulses Plus battery
Operating temperature
-30 to 60°C
-40 to 85°C
Storage temperature
-30 to 60°C
-30 to 60°C

  Warning:
  • The HLC is designed for use in a Pulses Plus. battery or in low charge current as
    specified only. The HLC may explode or violently vent if over-charged above
    4.4V.
  • Charging the HLC at above 3.95V may lead to capacity loss and / or internal
    impedance rise.
  • Do not charge the HLC higher than 4.1V, over discharge, short circuit, heat above
    100°C, incinerate or expose content to water.

 

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