Gel batteries belong to a development category of lead-acid batteries. The easiest way is to add a gelling agent to sulfuric acid to make the sulfuric acid electro-hydraulic into a colloidal state. Batteries in which the electro-hydraulic is in a gel state are usually called gel batteries. Broadly speaking, the difference between gel batteries and conventional lead-acid batteries is not only that the electro-hydraulic is changed to gel. For example, non-solid hydrocolloids belong to colloidal batteries from the perspective of electrochemical classification structure and characteristics. Another example is the attachment of polymer materials in the grid, commonly known as ceramic grids, which can also be regarded as the application characteristics of gel batteries. The main advantages of gel batteries: high quality and long cycle life. The colloidal electrolyte can form a solid protective layer around the electrode plates to protect the electrode plates from damage and breakage caused by vibration or collision, prevent the electrode plates from being corroded, and also reduce the bending and inter-electrode plate bending of the battery when the battery is used under heavy load. The short-circuit of the battery will not cause a decrease in capacity, and has a good physical and chemical protection effect, which is twice the life of ordinary lead-acid batteries. It is safe to use, environmentally friendly, and belongs to the true sense of green power.
The electrolyte of the gel battery is solid, sealed structure, and the gel electrolyte never leaks, so that the specific gravity of each part of the battery is consistent. The use of a special calcium-lead-tin alloy grid is more resistant to corrosion and has better charging acceptance. Use ultra-high-strength partitions to avoid short circuits. Imported high-quality safety valve, precise valve control to adjust the pressure. Equipped with a filter acid mist explosion-proof device, which is safer and more reliable. There is no acid mist gas precipitation during use, no electrolyte leakage, no harmful elements to the human body during the production process, non-toxic, non-polluting, and avoiding a large amount of electrolyte leakage and penetration during the use of traditional lead-acid batteries. The floating charge current is small, the battery generates less heat, and the electrolyte does not undergo acid stratification.
The performance of deep discharge cycle is good. After the battery is deeply discharged and then recharged in time, the capacity can be 100% recharged, which can meet the needs of high frequency and deep discharge, so its use range is wider than that of lead-acid batteries. The self-discharge is small, the deep discharge performance is good, the charge acceptance is strong, the upper and lower potential difference is small, and the electric capacity is large. Significantly improved in low temperature starting ability, charge retention ability, electrolyte retention ability, cycle durability, vibration resistance, and temperature change resistance. Stored at 20°C room temperature for 2 years, it can be put into operation without charging. Adapt to a wide range of environments (temperatures). It can be used in the temperature range of -40°C to 65°C, especially with good low temperature performance, suitable for the northern alpine region. It has good seismic performance and can be used safely in various harsh environments. Not limited by space, it can be placed in any position when in use. It is quick and convenient to use. Because the internal resistance, capacity, and float voltage of the single battery are consistent, there is no need for equalizing charging and frequent maintenance.
There are two indicators for the life of a battery. One is the floating charge life, that is, the maximum capacity that the battery can release at standard temperature and continuous floating charge is not less than 80% of the rated capacity. It is the number of times of 80% deep cycle charge and discharge, that is, the full capacity of the German Sunshine battery is discharged after 80% of the rated capacity and then fully charged, so the number of cycles that can be used. Usually, engineers and technicians only pay attention to the former and ignore the latter. The 80% deep cycle charge and discharge times represent the actual number of times that the battery can be used. In the case of frequent power outages or low quality of the mains, when the actual number of cycles of the battery has exceeded the specified number of charge and discharge cycles, although the actual use time is still The calibrated floating charge life is not reached, but the battery has actually failed. If it cannot be found in time, it will bring greater potential accidents. Therefore, when choosing a battery, we should pay attention to both of the two life indicators. The latter is particularly important when the city power is often interrupted. When choosing UPS to support German sunshine batteries, we should consider sufficient floating life margin. According to experience, the actual service life of a battery is often only 50% to 80% of the nominal floating charge life. This is because the actual floating charge life of the battery is related to many factors such as the definition of standard temperature, actual ambient temperature, battery charging voltage, use and maintenance.
When the actual ambient temperature is 10°C higher than the defined standard ambient temperature, the battery will double its internal chemical reaction speed and shorten the floating charge life by half. Therefore, the UPS battery room should be equipped with air-conditioning equipment. In terms of defining temperature values, European standards are 20°C, and standards such as China, Japan, and the United States are 25°C. A battery with a 10-year floating charge life at 20°C, if converted to a standard of 25°C, is only equivalent to a floating charge life of 7-8 years. The nominal floating charge life of the supporting battery should be the value obtained by dividing the actual service life of the battery we want by a life coefficient. This life factor is usually determined by experience. The battery with high reliability can be taken as 0.8, and the battery with low reliability can be taken as 0.5.