The key reasons for the damage to the life of lithium battery packs:

　　Although the lithium iron phosphate battery pack is also a lithium ion battery, it can be seen from the positive electrode material that the lithium iron phosphate battery is a relatively stable battery among the lithium ion batteries, and the cost is not high. Therefore, the lithium ion battery is used more and more. Used in large and medium-sized industrial production and mobile communication base stations. During the entire battery charging process, it is placed back and forth between two levels: when charging, it deintercalates from the positive level and enters the negative level through the electrolyte solution. The negative level is rich in lithium; when charging and discharging, it reverses electricity.

　　(1) In terms of charging and discharging

　　Although most lithium batteries now contain a short-circuit fault-proof repair power circuit, in many cases, this repair power circuit is not necessarily effective in actual situations, and the defense energy is also limited. Under working conditions, the lithium ion battery in the lithium phosphate battery inevitably generates heat. Generally speaking, the office environment of lithium ion batteries in lithium phosphate batteries is between -c and c. However, the lithium ion battery in the lithium iron phosphate battery must generate heat during the entire working process and after the entire working process. Therefore, the temperature of the lithium ion battery in the lithium iron phosphate battery is controlled at c. One of the disadvantages of lithium ion batteries in lithium phosphate batteries is their extremely low resistance to ultra-low temperatures.

　　The operating voltage of the lithium-ion battery should not be higher than its rated value, because this will lead to the charging characteristics, physical performance and safety factor of the lithium-ion battery, and will cause heat leakage or internal leakage of the lithium-ion battery.

　　In order to make cars work more efficiently, people will increase their operating speed, and high energy density lithium ion must be selected. In short, the energy density of lithium ion is the faster the car runs. Lithium should be consistent with the car load. The relationship between charge and discharge current and volume can also be obtained. The lithium charge and discharge current of a battery car is different from the charge and discharge capacity, and the size of the lithium charge and discharge current will directly affect the specific capacity of the battery.

　　Excessive charging and discharging is not required, because doing so may cause lithium-ion charging and lithium-ion characteristics and battery failure.

　　(a) The high content of lead, antimony and other heavy metals in lead-acid batteries is likely to cause serious environmental pollution to the natural environment. It is easy to leak when used and maintained. If the internal hydrochloric acid flows out, it will cause corrosion of machinery and equipment, and personnel safety accidents. Lithium iron phosphate batteries do not have any harmful heavy metal elements and zero pollution, and have a high safety factor. It is the current stage of safe lithium batteries.

　　(2) Application of natural environment

　　What is the maintenance method of the rechargeable battery of the battery car? To correctly grasp the application of battery charging time in the whole process, the battery charging time should be accurately grasped according to the specific situation, referring to the usual application frequency and mileage, and battery charging time.

　　The gas in the room should not contain corrosive steam, so as to ensure that the room is ventilated when the dust content in the room is low. The corrosion of steam, dust and dust will cause harm to the internal working lines of lithium-ion batteries. The long-term nature of this natural environment will increase the frequency of common failures of lithium-ion batteries and endanger the use of internal components.

　　Li-ion batteries cannot be connected to lead-acid batteries due to the following reasons: charging and discharging; when the battery size is different, first discharge the battery, and the other battery is still working at a higher voltage; battery charging: when the battery size is different, First charge, then charge again; rechargeable battery: no battery: life is shortened, or even destroyed; overcharged battery: will be removed from the chemical reaction balance, rechargeable battery will destroy the rechargeable battery; rechargeable battery intermediate charge: When the battery voltage is reduced, the high-load battery will be charged to the battery. If the current and the battery of the battery are increased, the battery will continue to be charged even if the battery is damaged, until the battery itself.

　　However, if the lithium iron battery is overcharged and discharged, the battery in the battery pack control module will be charged and discharged first, and polarity reversal may occur at this time. According to the manufacturer, the polarity of the rechargeable battery causes sexual damage. Therefore, it plays a very important role in the control module of the lithium iron battery.

　　The operating temperature of the lithium-ion battery pack is also very important. Although the working temperature of lithium ion is suitable for the natural environment at different temperatures from -20c to 60c, in general, the charging and discharging capacity of lithium ion will be reduced when the general temperature is less than 0c, and the service life of the circulation system will be harmed to a certain extent. . Therefore, we must pay attention to the operating temperature of lithium-ion batteries.

　　Third, the output power is different from the rated power of the battery car. The rated power of the battery car will increase a little, or there is.

　　(3) Load

　　The li package rated power refers to the key parameter of the multi-power load of the commercial energy driver. It changes with the change of the load power factor. For example, a 1kva package does not necessarily drive a 1kva load. In order to increase the life cycle of the li package, UPS is not suitable for long-term load operation.

　　This situation is due to the inconsistent charging capacity or volume of the single string of lithium battery packs. The use of the first rechargeable lithium battery protection board with high or low capacity to maintain other series of rechargeable batteries is dissatisfied with the battery charging process.