Contraindications of Lithium Batteries for Electric Vehicles
Today, electric vehicles are increasingly developing in the direction of high-end intelligence. The R&D and manufacturing technology of electric vehicles is constantly improving, and the production process of electric vehicles is also becoming more and more mature. But there is a drawback restricting the development of electric vehicles, that is, the battery!
With the announcement of the timetable for banning the sale of fuel vehicles in various countries worldwide, the new energy industry has again ushered in a wave of a development boom. It is foreseeable that lithium batteries will be widely used in the electric vehicle industry in the future.
Electric vehicle lithium batteries are mainly divided into three categories. The first is ternary lithium, the most used lithium battery; the second is lithium iron phosphate, and the third is lithium titanate. Few. Now Tianneng Chaowei and major manufacturers are mainly ternary lithium batteries. Among them, Tianneng lithium batteries use 18650 lithium batteries, and Chaowei lithium batteries are mainly soft-pack ternary lithium batteries, all of which belong to the ternary lithium type. 3.7V fully charged 4.2V.
Three taboos of lithium batteries:
1. Temperature, lithium batteries are afraid of high temperatures.
2. High current, such as 18650 battery is 3C discharge, your electric car is 8000W, the battery used is lower than the discharge current of your electric car, which will cause the lithium battery temperature to be too high, the current is too large, and the life is shortened, there will also be cases of bulging and scrapping. If your electric vehicle has very high power and a breakneck speed, it is recommended to choose 18650 batteries with a current of 10C. It is essential to choose a suitable battery!
3. It is stored at full power. The ternary lithium battery is fully charged at 4.35V. The protection boards on the market are all 4.2V before charging. Therefore, many people who buy lithium batteries for electric vehicles say that there is no nominal capacity. For this reason, it is generally best to store lithium batteries for electric vehicles for a long time, and a TV that is 50/50 complete is best. For example, when you buy a new mobile phone, many are turned on at 50 per cent of the power. If the battery is fully charged for a long time, the capacity of the lithium battery will be reduced. These two can be stored at full power except for lithium iron phosphate and titanate. It is also necessary to choose a protection board with better quality. The biggest taboo of lithium batteries is overcharge and over-discharge. Scrap, the overshoot must also be scrapped.
Pay attention to these points; your electric vehicle's lithium battery will be no problem for five or six years!
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