Enter your Required Power, Backup Time, System Rated Voltage, and voltage window (Working Voltage Max/Min) alongside your Supercapacitor Type, Discharge Type, and Cell Voltage to calculate the Required Capacity, plus your Energy Storage, Maximum Current, Cells in Series, and Module Voltage.
Required Capacity
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Energy Storage
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Maximum Current
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Cells in Series
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Module Voltage
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EDLC (Electrochemical Double Layer Capacitors) use activated carbon and offer high power density with symmetric voltage operation. LIC (Lithium-Ion Capacitors) combine lithium-ion battery technology with supercapacitor benefits, providing higher energy density and asymmetric voltage characteristics.
The minimum working voltage should be set based on your system's operational requirements. Generally, it's 60-80% of the maximum voltage to ensure adequate energy extraction while maintaining system stability.
Capacity derating accounts for real-world performance variations due to temperature, aging, and manufacturing tolerances. A 90% derating factor provides a safety margin to ensure your supercapacitor meets performance requirements over its lifetime.
Constant power discharge is typical for backup power applications where you need steady power output. Constant current discharge is used when your load draws a fixed current regardless of voltage changes.
The number of cells in series is calculated by dividing your system voltage by the individual cell voltage. For example, a 12V system using 2.7V cells would need approximately 5 cells in series.
Key factors include required power output, backup time duration, operating voltage range, temperature conditions, discharge type, and safety derating factors. Each affects the final capacity and configuration requirements.
ESR (Equivalent Series Resistance) derating accounts for resistance increases due to temperature and aging. A 2x derating factor is conservative and ensures adequate current delivery capability throughout the supercapacitor's life.