85V20.6F Super Capacitor Module


Product Model: DUCM 8520R6 E20A

Categorize:

800F Core Module Sequence

Introduction


  • The DUCM 8520R6 E20A type supercapacitor module consists of 34 2.7V 800F supercapacitor cores connected in series, and the module casing is made of Q235 material.

    The module features low internal resistance, high power, long lifespan, and low-temperature resistance.

    The module core is equipped with a voltage balancing circuit and outputs over-temperature alarm signals, over-voltage alarm signals, and polarity reverse connection alarm signals.

    Multiple modules can be combined in series and parallel to achieve higher voltage or energy storage.

     

     

Parameters


    • Performance Parameters
    • Service Life

    Product Model

    DUCM 8520R6 E20A

    Rated Capacity

    20.6F (25℃)

    Capacity Deviation

    0% ~ +20%

    Rated Voltage

    85V

    Maximum Voltage

    91.8V

    Energy Storage

    20.67wh

    Equivalent DC Internal Resistance

    ≤ 140mΩ

    Leakage Current

    ≤ 32mA @ 85V

    Maximum Continuous Current

    40A (T=△40℃, <5min)

    Peak Current

    318A (<1S, not repeated within 24h)

    Operating Temperature

    -40℃ - 65℃

    Storage Temperature

    -40℃ - 70℃

    Lifespan

    65℃, after 1500h of no-load operation

    Capacity Change

    Less than 30% of nominal value

    Internal Resistance Change

    Less than 100% of nominal value

    After 10 years of operation at 25℃, rated voltage

    Capacity Change

    Less than 30% of nominal value

    Internal Resistance Change

    Less than 100% of nominal value

    At 25℃, cycling to half of rated voltage, 500,000 times

    Capacity Change

    Less than 30% of nominal value

    Internal Resistance Change

    Less than 100% of nominal value

  • Charging and discharging process

    A) Charge the module to the rated voltage UR with a constant current I

    B) Maintain the rated voltage for 5 minutes

    C) Discharge the module to <0.2V with a constant current I

    D) U1=80%UR, U2=50%UR

    1. Capacity calculation method

    C=I*(T2-T1)/(U1-U2),

    C: Capacity (F)

    I: Discharge current (A)

    T2-T1: Discharge time (S)

    U1-U2: Voltage change (V)

    2. DC ESR (Direct Current Equivalent Series Resistance) measurement method

    DC ESR = ΔU / I ,

    ΔU: Voltage change over 10ms

    I: Discharge current (A)

Test Method


    • Performance Parameters
    • Service Life

    Product Model

    DUCM 8520R6 E20A

    Rated Capacity

    20.6F (25℃)

    Capacity Deviation

    0% ~ +20%

    Rated Voltage

    85V

    Maximum Voltage

    91.8V

    Energy Storage

    20.67wh

    Equivalent DC Internal Resistance

    ≤ 140mΩ

    Leakage Current

    ≤ 32mA @ 85V

    Maximum Continuous Current

    40A (T=△40℃, <5min)

    Peak Current

    318A (<1S, not repeated within 24h)

    Operating Temperature

    -40℃ - 65℃

    Storage Temperature

    -40℃ - 70℃

    Lifespan

    65℃, after 1500h of no-load operation

    Capacity Change

    Less than 30% of nominal value

    Internal Resistance Change

    Less than 100% of nominal value

    After 10 years of operation at 25℃, rated voltage

    Capacity Change

    Less than 30% of nominal value

    Internal Resistance Change

    Less than 100% of nominal value

    At 25℃, cycling to half of rated voltage, 500,000 times

    Capacity Change

    Less than 30% of nominal value

    Internal Resistance Change

    Less than 100% of nominal value

  • Charging and discharging process

    A) Charge the module to the rated voltage UR with a constant current I

    B) Maintain the rated voltage for 5 minutes

    C) Discharge the module to <0.2V with a constant current I

    D) U1=80%UR, U2=50%UR

    1. Capacity calculation method

    C=I*(T2-T1)/(U1-U2),

    C: Capacity (F)

    I: Discharge current (A)

    T2-T1: Discharge time (S)

    U1-U2: Voltage change (V)

    2. DC ESR (Direct Current Equivalent Series Resistance) measurement method

    DC ESR = ΔU / I ,

    ΔU: Voltage change over 10ms

    I: Discharge current (A)

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