At present, the most common lithium batteries on the market are two types of batteries, lithium iron phosphate batteries and ternary batteries. The hardware systems of lithium iron phosphate batteries and ternary batteries are different. Lithium iron phosphate is 3.2V voltage platform and has a lifespan of more than 2000 times. Ternary batteries are a voltage platform of 3.7 V. The service life depends on different manufacturers. and different models. And the technology, some can reach 500 cycles, and some can reach more than 1,000 cycles. Lithium iron batteries have good high temperature performance, and ternary batteries have good low temperature performance.
In terms of safety, lithium iron is better. Choose ternary batteries and assemble them into a 48V battery. Using ternary batteries requires 13 strings. The tensionn nominal will be higher and the number of strings assembled in the battery will be smaller. Choose lithium iron phosphate batteries to assemble into a 48V battery. Using lithium iron phosphate batteries requires 16 strings. The rated voltage value is only 3.2V. More batteries are needed in series to increase the voltage.
Many people think that if my battery is 48V20AH, I should use 20A protection board, if my battery is 48V80AH, I will use 80A protection board, etc. I choose the protection card based on the capacity. This concept is completely false. It is recommended to confirm the specific parameters of the protection board in terms of product power, voltage requirements, various functions, etc.
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When lithium batteries are used, they will be combined in series and parallel in operation.ion of the operating voltage of the load and the required capacity. Lithium batteries are assembled into lithium battery packs, such as 48V, 60V, etc., common in electric vehicles.
So when choosing a protection board, you must first determine the single battery type and whether the voltage is 3.2V or 3.7V or other voltages , then determine the voltage of the entire group or battery. The group consists of several chains of cells. The management chips of some protection boards have reserved battery voltage selection terminals, and the rated voltage of the single battery can be adjusted through the high and low levels of the port.
No. There are no height requirements for stacking lithium batteries. Warehouse requirements require dryness, coolness, ventilation, emergency lighting, safety exits, concrete structures and equipment.fire fighting equipment. Stacking requires fixed supports and should not exceed 5 layers. It should not be placed sideways or vertically. It should be placed horizontally, and the cells and batteries should be placed in categories. The storage requirements are that the storage temperature must be below 30 degrees, not exceeding the minimum and maximum temperatures specified by the manufacturer, and the storage power must be maintained between 30% and 50%.