Analysis of the three taboos of lithium batteries

At the top of the list, lithium batteries are afraid of high temperatures. The second largest current, for example, the 18650 battery is 3C discharge, your electric car is 8000W, and 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 lifespan is shortened If your electric car is very powerful and fast, it is recommended to choose 18650 batteries with 10C current. It is obviously very important to choose the right batteries! The third is the full battery storage. The ternary lithium battery is fully charged at 4.35V. At present, the protection boards on the market are all 4.2V and the charging is cut off. Therefore, many people buy lithium batteries for electric vehicles and say that they have no nominal capacity. In fact, For this reason, it is generally best to store lithium batteries for electric vehicles for a long period of time, and it is best to charge 50% of the TV. For example, if you buy a new mobile phone, many of them are powered by 50%. If the full battery storage time is long, the capacity of the lithium battery will be reduced. Except for lithium iron phosphate and lithium titanate, these two types can be stored at full power. Also, you need to pay attention to choosing a better quality protection board. The biggest contraindication for lithium batteries is overshoot and overdischarge. Ternary lithium can be used in one pass. If it is released, it will be invalidated, and the overshoot must be invalidated as well. Look at the type of lithium battery. Generally super power, Tianneng’s lithium battery is about 400 cycles, and the lead-acid battery is about 300. The more stable customized ternary lithium is 500-600 cycles, which is not stable, and it has a lot to do with the selection of the battery cell of the assembler. The customized lithium iron phosphate is about 1000 cycles. Statement: Article published on this site Some pictures and content are from the Internet. If there is any infringement, please contact to delete the previous article: How is the cathode material of lithium iron phosphate battery processed