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Author ：Iflowpower – Portable Power Station Supplier
As we all know, the high temperature performance of lithium batteries is good, but it is a major pain to use it in low temperature. In low temperatures, the use of lithium batteries will decrease, and the service life will be greatly shortened. With the continuous development of lithium electrical technology, low temperature performance has gradually improved.
Xiaobian will talk about the daily maintenance of lithium battery UPS power supplies under low temperature. What is the effect on the lithium battery? ⒈ Lithium battery is limited in low temperature environments, except that the lithium battery cannot be charged at low temperatures because the discharge capacity will be severely recession. When charging at low temperature, the embedding and lithium-plated reaction on the battery graphite electrode are in the same time and compete in each other.
The diffusion of lithium ions in the graphite under low temperature conditions is inhibited, and the conductivity of the electrolyte decreases, resulting in a decrease in the embedding rate and the lithium lithium-plated reaction is made easier to produce on the surface of the graphite. ⒊ The internal resistance of the battery is significantly increased with the temperature reduction, the lower the battery, the lower internal resistance, and this trend also remains unchanged with the temperature changes. After the lithium battery reaches the negative pole, the diffusion inside the negative electrode material has become inconsistent.
All processes, with ionic movement has become difficult, in the outside, that is, the internal resistance of the battery is high. ⒋ Low temperature affects the charging and discharging efficiency of lithium batteries, a large amount of electric energy consumption is hot in the heat during discharge. In the driving process of electric car, it will feel that it looks almost power, and the low temperature is short.
Low temperature Lithium Battery UPS power supply daily maintenance: ● Lithium battery UPS power should be stored in a cool, dry, safe environment; ● Lithium battery is required for a long time (more than one month), it is recommended to charge to 40% -60%, The storage time needs to be added to the battery for 1-2 hours per month;. Do not refresh to avoid moisture erosion; ● Strictly operate according to the correct boot, shut down sequence. Avoiding that the voltage output of the lithium battery UPS power is large due to the sudden loading or sudden drop of load, and the UPS power supply cannot work properly; ● Prohibition of overload use.
The maximum start load of the lithium battery UPS power supply is preferably within 80%. If overloaded, in the inverter, it will often break through the inverse variable tube; ● For long-term storage of lithium battery UPS, every 3 ~ 6 The UPS host and battery will be damaged for the UPS host and the battery. How to address low temperature differences in lithium batteries should be resolved? 1 The response strategy for low-temperature preheating technical technicians is charging preheating, although it is an authority, but there is a significant effect on improving the discharge capacity of lithium batteries and long-term life.
Pre-heat the battery must be preheated to the lithium battery in a low temperature environment. 2 From the positive electrode, negative electrode, electro-hydraulic, and binder four pieces to increase the low temperature performance of the lithium iron phosphate battery, now the nanogenization, its particle size, resistance, and AB plane axis grow three aspects will affect the entire Battery low temperature characteristics. Lithium lithium iron phosphate is prepared by three processes.
From our entire preparation conditions, different lithium iron phosphate process nano-coated, we look from the axis of the AB, increased lithium The ion migration channel will become large, which will help improve the performance of the battery. What are the advantages of lithium battery UPS power? Long service life, the energy storage power supply used by the lithium battery UPS is a lithium battery. Since the strainability of the lithium battery is low, it can reduce the structural damage caused by the retractive shrinkage of the electrode material.
The average work life is 10 to 15 years, while lead-acid batteries can only last for 4 to 6 years. High and low temperature adaptability, can be used in an environment of -20 ° C -60 ° C, after processes, can be used in the -45 ° C environment. Green environmentally, regardless of production, use and scrap, no lead, mercury, cadmium, etc.
toxic and harmful heavy metal elements and substances. Perfect protection features, with battery overvoltage protection, output overvoltage protection, output undervoltage alarm, output short circuit, over temperature and other protection. .
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