With the market's increasing demand for higher capacity and output power of energy storage devices, lithium-ion batteries and capacitors have become hot topics of current research. Lithium-ion batteries have the advantages of high energy density and low self-discharge rate, but their rate performance is not ideal, and power density is relatively low. On the other hand, capacitors have high power density and long cycle life, but their energy density is relatively low. To meet the demand for high energy density and high output characteristics, a product that combines the energy storage principles of lithium-ion batteries and double-layer capacitors has emerged, known as hybrid capacitors.
Our company, after understanding market demands and combining our production line and process level, has designed a lithium-ion capacitor product. This product possesses the characteristics of both lithium-ion batteries and capacitors. Additionally, the product can be used in conjunction with other power sources (such as primary lithium batteries), and its final product has broad application prospects in products such as ETC devices, smart parking lots, and smart water, electricity, and gas meters.
Item | SPC1550 Characteristics | SPC1520 Characteristics | SPC1734 Characteristics |
3.67V rated capacity | ≧175mAh(630As) | ≧35mAh(126As) | ≧135mAh(486As) |
Nominal Voltage | ≧3.60V | ≧3.60V | ≧3.60V |
Initial Internal Imperdance | ≦80mΩ | ≦150mΩ | ≦100mΩ |
End-off Voltage | 2.7V | 2.7V | 2.7V |
Charge Voltage | 3.67V | 3.67V | 3.67V |
Max. Charge Voltage | 4.1V | 4.1V | 3.95V |
Performance
Item | SPC1550 Characteristics | SPC1520 Characteristics | SPC1734 Characteristics |
Discharge Voltage | 100mA | 20mA | 50mA |
Max.Charge Current | 200mA | 50mA | 100mA |
Charge process | Following a constant current followed by constant voltage charging method, under environmental temperature conditions of (23±2)℃, the charging source charges at a constant current of 100mA until the voltage reaches 3.67V, then charges at a constant voltage of 3.67V until the current is less than or equal to 5mA. | Following a constant current followed by constant voltage charging method, under ambient temperature conditions of (23±2)℃, the charging source charges at a constant current of 20mA until the voltage reaches 3.67V, and then charges at a constant voltage of 3.67V until the current is less than or equal to 5mA. | Following a constant current followed by constant voltage charging method, under environmental temperature conditions of (23±2)℃, the charging source charges at a constant current of 50mA until the voltage reaches 3.67V, then charges at a constant voltage of 3.67V until the current is less than or equal to 5mA. |
4.1V max continuous discharge current | 5A | 3A | 1000mA |
3.6V parallel ER battery max pulse discharge current | 3.0A | 1.0A | 3.0A |
Current loss | <8μA | <3μA | |
Weight | ≦21.0g | ≦8.6g | ≦18.0g |
Working temperature | -40oC~85oC | -40oC~85oC | -40oC~85oC |
Storage temperature | -30oC~60oC | -30oC~60oC | -30oC~60oC |
Dimension(With wrapper) | Diameter:Max 15mm | Diameter：Max 15mm | Diameter：17.0±0.1mm |
Electrical performance
| Item | SPC1550 Characteristics | SPC1520 Characteristics | SPC1734 Characteristics |
Standard Charging | 100mA 3.67V | 20mA 3.67V | |
Standard discharging | 250mA 2.5V | 50mA 2.5V | |
Rated capacity | ≧175mAh(630As) | ≧35mAh(126As) | ≧135mAh |
Cycles | 1.No less than 5000 cycles 2. No leakage during the cycle period | 1.No less than 5000 cycles 2. No leakage during the cycle period | 1.No less than 1000 cycles 2. No leakage during the cycle period |
Impedance | ≦80mΩ | ≦150mΩ | ≦100mΩ |
Feature under high impulse current | Pulse count ≥ 20 times | Pulse count ≥ 20 times | Pulse count ≥ 20 times |
Feature under extreme temperature | In the temperature range of -40oC to +85oC, the pulse capacity is 7.5As (2.08mAh) at a voltage of ≧2.5V. | In the temperature range of -40oC to +85oC, the pulse capacity is 3.5As (0.83mAh) at a voltage of ≧2.5V. | Low-temperature pulse discharge with a pulse count of at least 55 times. |
High-temperature pulse discharge with a pulse count of at least 30 times. | |||
Capacity holding | ≥95% (within one month at room temperature) | ≥95% (within one month at room temperature) | Remaining capacity is greater than or equal to 85% of the rated capacity. |
Capacity recovery after storage | Recovery capacity ≥95% rated capacity | Recovery capacity ≥95% rated capacity | Remaining capacity ≥ 90% of the rated capacity. |
Storage life | 10 years | 10 years | Remaining capacity is greater than or equal to 80% of the rated capacity. |
Shipment voltage | 3.6v | 3.6v | 3.55v~3.67v |
