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High voltage series (600-800V)

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Product Details

Structural Design of High Voltage Battery System


The system adopts a double-sided arrangement of liquid cooled plates for heat dissipation, The direction of coolant flow on both sides is opposite, Offset the difference in single-sided series heat dissipation.



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    Design Results

    Rated capacity

    220Ah

    Rated energy

    147kwh

    Rated voltage (V)

    669V

    Voltage range

    470-799V

    System quality capability density

    201wh/kg

    cycle life

    ≥800 second

    Maximum continuous discharge rate

    5C

    Maximum pulse discharge rate

    7C (30s)

    Shell protection level

    IP67

    Cooling method

    water-cooling


Battery system parameters



  • Outline drawing of battery system



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    Single cell battery parameters

    Nominal capacity

    55Ah

    Nominal voltage

    3. 6V

    working voltage

    2. 5V～4. 25V

    weight

    617g

    mass energy density

    320Wh/Kg

    Maximum continuous discharge rate

    5C (275A)

    Maximum pulse discharge rate

    7C (385A, 30s)

    -20℃Low temperature discharge

    ≥80%

    cycle life

    ≥800 second@80% (1C/2C)

    size

    9. 3mm×103mm×310mm


Single cell battery parameters




  • Outline drawing of individual battery




40℃Simulate normal landing under conditions




  • 0℃Simulate normal landing under conditions





1C/2C cycle life 867 second




  • High and low temperature capacity maintenance (0. 33C)