Battery Chemistry Comparison

Specification	Lead acid Battery	LiFePO4 Battery	Sodium-ion Battery（Layered oxide）	Sodium-ion Battery (Polyanion)
Mass energy density(Wh/kg)	70~90	170~190	120~160	90~110
Nominal voltage(V)	2.00	3.20	3.00	2.8/3.0
Cycle life	500~1000	3,000~10,000	2,000~3,500	6,000~8,000
-20°C Capacity retention	60%	70~75%	85~90%	85~90%
-40°C Capacity retention	40%	40~50%	70~75%	70~75%
Over discharge tolerance	Poor	Poor	Excellent	Excellent
Flammability	Somewhat Flammable	Flammable	Non-flammable	Non-flammable
Cost for now	Lowest	High	Higher	Highest

CSiT Na-ion battery is with lots of advantages compared with lithium iron phosphate battery and other battery. Compared with lithium, sodium has relatively lower chemical activity, making it less prone to thermal runaway or explosion during use. This stability makes sodium-ion batteries super safe during fast charging and capable of handling higher charging power. Sodium ion battery is with wide working temperature range from -40℃ to 80℃, which is suitable for the applications under extreme weather condition. The reserve of sodium is 440 times that of lithium, even though the cost of sodium ion battery is higher than that of lithium battery, it will lower down and become low cost battery solution in future.

7 Jan 2019

Main Cathode Material--Layered Oxide or Polyanion(NFPP)

We have our own factory making cathode material for sodium ion battery cell and we are achieving more and more R&D results.

Main Feature: good structural stability, safety, and high rate discharge performance, as well as excellent high-temperature storage and cycle performance. Cycle life is 6000+ times of polyanion material and 3000+ times of layered oxide material.

Main Application: can be used independently for the manufacture of aluminum-cased, pouch and cylindrical sodium-ion cells, meeting the requirements of new energy A00 vehicles, electric bicycles, electric tools, communication devices, and energy storage devices. Layered oxide material is more suitable for the application which requests high discharge rate, polyanion material is more suitable for the application which requests long cycle life.

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7 Jan 2019

Main Anode Material---Hard Carbon

Hard carbon stands out as the cutting-edge anode material for sodium-ion batteries, owing to its superior comprehensive performance, extensive accessibility, and comparatively low expense.

CSiT company has its own factory located in Guizhou produce hard carbon with excellent work performance.

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7 Jan 2019

CSiT provides various type of cells for different applications.

Cylindrical: Main models including 18650,26700,21700, 32140, 32700, 40140, 40160 and 46145, max discharge rate up to 75C

Prismatic: capacity including 50Ah, 70Ah, 80Ah, 103Ah, 160Ah

Pouch: exist model with 37Ah capacity, customized dimension and capacity based on 3000pcs MOQ.

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