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IEC62619 SDI Sodium battery 210ah prismatic cell 3.1V for home solar storage

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Name: IEC62619 SDI Sodium battery 210ah prismatic cell 31V for home solar storage
Brand: Deligreen
Price: 1 USD

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  IEC62619 SDI Sodium battery 210ah prismatic cell 3.1V for home
solar storage


Item	Parameters	Remark
Rated Capacity	210ah
Nominal Voltage	3.1V
Internal Impedance	≤0.5mΩ	Internal resistance measured at AC 1kHz after 50% charged.
Standard Charge Cut-off Voltage	3.95V
Standard Discharge Cut-off Voltage	1.5V
Maximum Continuous Disharge Current	1C(210A)
Peak Disharge Current	3C(630A) ≤30s
Energy density	≥140.00Wh/Kg
Size	17372204mm
Weight	5kg

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

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