Sodium ion battery 210ah prismatic cell 3.1V for home energy storage battery
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Item
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Parameters
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Remark
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Rated Capacity
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210ah
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Nominal Voltage
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3.1V
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Internal Impedance
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≤0.5mΩ
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Internal resistance measured at AC 1kHz after 50% charged.
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Standard Charge Cut-off Voltage
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3.95V
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Standard Discharge Cut-off Voltage
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1.5V
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Maximum Continuous Disharge Current
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1C(210A)
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Peak Disharge Current
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3C(630A) ≤30s
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Energy density
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≥140.00Wh/Kg
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Size
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173*72*204mm
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Weight
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5kg
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Why Sodium ion battery
Lower limit voltage:Sodium battery can discharge to 0V without quanlity issue,but LiFePO4 battery might has problem under 2V.
Higher up voltage:Sodium ion batteries have a higher voltage platform 3.95V than LiFePO4 3.65V.
Better low-temperature performance:
Sodium ion electrolytes have better low-temperature conductivity, with a capacity retention rate of
over 80% at -20 ℃, while lithium iron phosphate batteries typically have a capacity retention rate of less than 60%.
Sodium ion batteries can be charged at -20 ℃. Lithium iron phosphate must be charged at temperatures above 0 ℃.No need to heat
and charge the battery.
Temperature and charging performance:
-20~0℃ :≤0.20C
0~45℃ :≤0.50C
Temperature and discharge properties:
-40~0℃ :≤0.50C
0~45℃ :≤0.50C
45~60℃:≤0.20C
High Safety
Sodium ions have very stable chemical properties, making them safer as home energy storage batteries



