What are the factors that affect the cycle life of lithium batteries and lead-acid batteries?

What are the factors that affect the cycle life of lithium batteries and lead-acid batteries? What are the factors that affect the cycle life of lithium batteries and lead-acid batteries? The longer cycle life of lithium batteries and lead-acid batteries means less resource consumption. Lithium batteries and lead-acid batteries are important components of the UPS system, and their quality is directly related to the reliability of the entire UPS system. Therefore, the cycling function of lithium batteries and lead-acid batteries is an important indicator to measure the quality of UPS. The factors affecting the cycle life of lithium batteries and lead-acid batteries are analyzed. Factors affecting the cycle life of lithium batteries: 1. The choice of data types and data is the primary factor affecting the performance of lithium batteries. The function of poor blood circulation data, on the one hand, may be that the crystal structure changes too quickly during the circulation process, and eventually cannot continue to insert lithium lithium.On the one hand, it may be due to the fact that the active material and its corresponding electrolyte cannot appear dense and uniform SEI. The membrane constitutes the premature side-use of the active material and the electrolyte, so that the electrolyte quickly affects the cost of the cycle. 2. Positive compaction and negative compaction High positive and negative compaction can increase the energy density of the lithium battery, but it will also reduce the data cycle. In theory, the greater the compression, the greater the damage to the data structure. 3. Excessive moisture will cause side reactions between the lithium battery and the active materials in the positive and negative electrodes, destroying its structure, and affecting circulation. 4. The inconsistency of coating film density and film density will result in different capacity or different number of layers in coiling or delamination. Regarding the same type of lithium battery with the same capacity and the same data, reducing the film density is equivalent to adding one or more layers of windings or laminated films, which can absorb more electrolyte and ensure circulation. There are too many cathodes. If the negative excess is not enough, the lithium battery may not analyze the previous lithium cycle, but after a few hundred cycles, the positive structure changes little, but the negative structure is severely damaged, and the supply of lithium ions from the positive electrode cannot be fully received. , And then analyze lithium, the premature composition ability declines. 6. The short electrolyte has an important impact on the cycle life of lithium batteries for three reasons: first, the short liquid injection, and second, although the number of liquid injections is sufficient, the aging time is not good, maybe positive or negative The electrode is not enough due to the high-grade over-compaction immersion, and thirdly, the internal electrolyte of the circulating battery is consumed. 7. Use environment Although the use environment of lithium batteries is very wide, there are still requirements. Lithium batteries are extremely sensitive to temperature. If they are used for a long time below the freezing point, they may have a great impact and harm on the service life of the battery. . In addition, staying in an overheated environment for a long time will greatly reduce the service life of the battery. What is more serious is that the internal pressure will cause an explosion. Even if there is no explosion, the battery will be sensitive to waste under high heat conditions. Factors affecting the life of lead-acid batteries: There are many factors that affect the life of lead-acid batteries, including the connotative elements of the battery, such as battery structure, positive and negative electrode grid data, positive and negative active materials, Separator, electrolyte concentration, etc. also depend on a series of external factors, such as discharge current density, temperature, depth of discharge, protection and storage time. Temperature has a great influence on lead-acid batteries. Too high or too low temperature will shorten the battery life (too high temperature will lead to overcharging, too low temperature will lead to undercharging). In particular, high temperature has a significant impact on battery life. Generally speaking, the ambient temperature should be controlled at about 25°C. Depth of discharge Depth of discharge has a great influence on the service life of lead-acid batteries. The greater the depth of battery discharge, the fewer the number of cycles it uses, so you should try to prevent deep discharge when using it. A small current discharge simply constitutes a deep discharge. Floating charge voltage When the UPS battery returns to the standby state, the power supply is charged normally, and will only be discharged when the power supply fails. In order to prolong the service life of lead-acid batteries, the floating charging pressure must be set reasonably. Statement: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Maintenance method of portable UPS energy storage power supply