Final2.psd

RECHARGEABLE COIN TYPE LITHIUM BATTERIES
Vanadium pentoxide lithium rechargeable batteries (VL series) This coin type lithium rechargeable battery has a totally •• Flat high voltage of about 3 V
new composition, employing vanadium pentoxide A single battery can provide the voltage equivalent cathode, lithium alloy anode, and non-aqueous solvents to two or even three nickel cadmium batteries in the electrolyte solution. With an energy density about (approx. 1.2 V) and capacitors. Benefits include: twice that of button type nickel cadmium batteries, this battery is especially suited for applications such as •• Several months of continuous backup
memory backup power supply in electronic devices. VL3032 (nominal capacity l00mAh) is capable of continuous backup for 10,000 hours at a memory backup load of 10µA (when discharged to 2.5 V). •• Small self-discharge allows use without rechar-
Memory backup power supplies for OA equipment ging even after long storage.
(personal computers, facsimiles, etc.), AV equip- Unlike nickel cadmium batteries which lose consid- ment (VTRs), and communications equipment (por- erable capacity in 6 months due to self-discharge, the vanadium lithium secondary battery's self- Hybrid systems with solar batteries (solar remote discharge is very small, i.e., annual rate of approxi- •• Stable to continuous overcharging and overdis-
charging.
Vanadium lithium batteries exhibit stable character-
istics in continuous overcharging and overdischar-
ging to 0V, important in memory backup considera-
tions.
Electrical characteristics 20°C
Continuous
Dimensions (Max.)
Nominal *1
Model No.
capacity
voltage (V)
Standard
Diameter
* 1 Nominal capacity shown above is based on standard drain and cut off voltage down to 2.5 V at 20°C About 1,000 times at 10% discharge depth to nominal capacity Constant-voltage charging (Refer to recommended charging circuit) Lithium Batteries Handbook, Page 49
January 2000
RECHARGEABLE COIN TYPE LITHIUM BATTERIES
Load characteristics (VL2020)
Temperature characteristics (VL2020)

Storage characteristics (without charge) (VL2020)
Charge/discharge characteristics vs. discharge depth
(VL2020)
Discharge depth (%) as a function of nominal capacity Withstand voltage characteristics (Overcharge
Overdischarge characteristics (VL2020)
characteristics) (VL2020)
Lithium Batteries Handbook, Page 50
January 2000
BATTERY SELECTOR CHART
Current drain as a function of duration

Temp: 20˚C Initial cut off volatage: 2.5V Lithium Batteries Handbook, Page 51
January 2000
RECOMMENDED CHARGING CIRCUITS
Basic conditions: Fixed-voltage charging Charging circuits are important. Be sure to refer to "Precautions in handling "(page 61).
VL 1216,VL1220 approx. 0.5 mA or below VL 2020 (Note: current can be increased when voltage is below 3 V.) (Use caution in setting the charge voltage.) Reference: Examples of 5-V charging circuits
Standard circuits
For D2, select a diode of small inverse current (IR = 1µA or below / 5 V) D1, D2 = MA716 (Diode type code) D3 = MA704, MA700 Simple economical circuits
Type VL3032 VL2330 VL2320 VL2020 VL1220 VL1216 VL621 For D2, select a diode of small inverse current (IR = 1µA or below /5 V)
Charging curve: circuits c and d
UL recognition conditions
When a protective component is shorted or opened,
maximum charge current is regulated to the following Call Panasonic for answers to specific questions about Lithium Batteries Handbook, Page 52
January 2000
OTHER CHARGING CIRCUITS
4 For minimizing current leakage due to resistance, etc., In such a case as charging by another battery
For the details, refer to the constant voltage element specifications 5 Zener control
6 LED control
* Select a diode having an inverse current as small as possible. (IR=1µA or below / 5 V) 7 Transistor control
8 Parallel circuit
(Note) Be sure to consult with us regarding the charge circuit to be used. Lithium Batteries Handbook, Page 53
January 2000
VANADIUM PENTOXIDE LITHIUM RECHARGEABLE BATTERIES (VL SERIES)
Specification Table (Vanadium pentoxide lithium rechargeable batteries with terminals) P.V.C. Cover
Product availability
Model No. With P.V.C.
Capacity
Voltage (V)
Standard
• See page 61 for precautions in charging and handling. Recommended charging circuit is shown on page 52.
• Items with terminals other than those listed above are also available. Contact Panasonic for details.
Lithium Batteries Handbook, Page 87
December1998
DIMENSIONS (MM)
Model No.
Dimension (mm)
Model No.
Dimensions (mm)
VL2330/1VC
VL2320/1VC
VL2020/1VC
VL1220/1VC
VL2020/1GU7
VL2330/1HF
VL2320/1HF
VL2020/1HF
Lithium Batteries Handbook, Page 88
December1998
DIMENSIONS (MM) - CONTINUED
Model No.
Dimension (mm)
Model No.
Dimensions (mm)
VL621/F9D
VL3032/1F2
(1.5mAh)
(100mAh)
VL2320/1F2
VL2330/1F3
VL1216/1F5U
VL1220/1FC
Distance between the seal outer endand the Sumitube end VL2330/1S22
VL2330/2S22
Lithium Batteries Handbook, Page 89
December1998

Source: http://www.jm.pl/karty/VL2330.pdf