Most lithium-ion batteries are composed of flammable and volatile non-aqueous solutions, which have higher specific energy and voltage output compared to batteries composed of aqueous electrolytes, meeting the higher energy needs of users. Because non-aqueous electrolyte itself is flammable and volatile, it infiltrates the interior of the battery and also forms the source of combustion in the battery.
Therefore, the working temperature of both battery materials mentioned above should not exceed 60 ℃, but now the outdoor temperature is close to 40 ℃, and the battery itself produces a large amount of heat, which will cause the working environment temperature of the battery to rise. If thermal runaway occurs, the situation will be very dangerous. To prevent it from turning into a barbecue, it is particularly important to dissipate heat from the battery.
The low vibration density of lithium iron phosphate batteries determines their effectiveness in the use of electric tools. Relatively speaking, if lithium iron phosphate batteries are applied to mobile phones, their drawbacks are exposed, and the most obvious drawback is insufficient capacity. During work, it is inevitable that lithium iron phosphate battery packs will generate heat. Generally speaking, the working environment of lithium iron phosphate battery packs is between -50 ℃ and+80 ℃. However, in reality, heat is generated during and after the operation of lithium iron phosphate battery packs. Therefore, it is best to control the temperature of lithium iron phosphate battery packs below+50 ℃. However, the biggest drawback of lithium iron phosphate battery packs is their low temperature resistance. Simply put, lithium iron phosphate battery packs are not resistant to low temperatures, so it is best not to work within a temperature range that exceeds this range.
Regardless of whether the lithium iron phosphate battery pack operates at high or low temperatures, both situations will cause significant losses to the lithium iron phosphate battery pack. Although working at high temperatures for a long time is beneficial for the conversion of electrode materials from a chemical perspective, it is also mentioned that the lithium iron phosphate battery pack is important for electric tools, so its discharge capacity is large. Although the lithium iron phosphate battery pack has the characteristic of high temperature resistance, working at high temperatures for a long time can also have a certain impact on the lithium iron phosphate battery pack. The most common thing is that after using it for a period of time, the capacity of the battery pack is significantly reduced. Regarding this situation, this is the case for all secondary batteries. The common problem is that the loss of lithium iron phosphate batteries in this regard is relatively low.