Maintenance of lithium polymer batteries

Source: 2020 - 03 - 25 that hits: he first lithium polymer battery maintenance of lithium polymer batteries as lithium ion battery after the innovation of a new type of battery products, need attention in use. First, the characteristics of lithium polymer batteries. Compared with lithium ion batteries, lithium polymer battery while improve the battery leakage problem, but did not fully resolved. In addition, the polymer lithium battery can be made into ultrathin battery, thickness of 0. 5 mm, volume 3. 6 v400 mah, polymer lithium battery discharge capacity is 10% higher than traditional lithium-ion batteries. In everyday use, as a kind of lithium ion batteries, lithium polymer batteries are often afraid of internal short circuit, short circuit and overcharge the battery. The reason was that the lithium chemistry is very active. When the battery discharge and recharge, inside the battery will continue to heat up. When the temperature is too high, it might explode. When using the battery, therefore, be careful not to overload will as far as possible namely, smooth and plans to use the battery, don't let the battery run out easily, also don't want to be sued, continuous charging too long ( Eight hours is generally the most appropriate) 。 Safety performance of lithium iron phosphate crystals in p - O key is stable, not easy to decompose. Even in the case of high temperature or overcharge, the structure will not collapse like lithium cobalt oxide fever or forming strong oxidizing substances, with good security. According to the report, in practice, in the needle or short circuit experiments found a small amount of sample burns, but not an explosion. In the overcharge experiments, however, still can appear after the high voltage charging explosion phenomenon, its discharge voltage is several times their own discharge voltage. But compared with the ordinary cobalt liquid electrolyte of lithium batteries, the overcharge security had the very big enhancement. Life of long life and improve the cycle life of lead acid battery is about 300 times, 500 times the maximum, and lithium iron phosphate battery cycle life of more than 2000 times, using the standard charge ( 5 hour rates) Can reach 2000 times. Lead-acid batteries of the same quality with 'new six months, six months old, maintenance and maintenance of six months', up to 1 ~ 1. 5 years, and lithium iron phosphate batteries, under the same condition, the theory of life will reach 7 ~ 8 years. Overall, this performance than lead acid battery is the theory more than four times. Large current discharge can be large current fast charge and discharge, 2 c in the special charger, 1. 5 c make battery charging 40 minutes, up to 2 c startup current, and lead acid battery is not the performance. High temperature peak electrical performance of the lithium iron phosphate can reach 350 ℃ 500 ℃, and lithium manganese acid lithium cobalt oxide and electric peak only about 200 ℃. Working temperature range ( - 20c - +75C) , electric heating peak lithium iron phosphate with high temperature resistant properties of up to 350 ℃ 500 ℃, lithium cobalt and lithium manganese acid and acid only at about 200 ℃. The large capacity its capacity than conventional cells ( Lead-acid batteries, etc. ) Big. 5 - 1000. ( Monomer) No memory effect when the rechargeable battery is full, their capacity will rapidly falling below the rated capacity. This phenomenon is called memory effect. For example, nickel metal hydride batteries and nickel-cadmium battery has a memory function, and lithium iron phosphate batteries would not have this kind of phenomenon. No matter in what state, it can be used when charging, and don't have to remove the batteries to recharge. Light weight of the same size of lithium iron phosphate battery is two-thirds the size of lead-acid battery, a third of the lead-acid battery weight. Environmental protection battery generally do not contain any heavy metals and rare metals ( Nimh batteries need to rare metals) , non-toxic ( Through the SGS certification) , no pollution, in line with European RoHS regulations for absolute green battery certification. The main reason for the favor by industry as a result, the lithium battery is environmental protection. Therefore, the battery was listed in '863' national '15' high technology development planning, become the focus of the state shall encourage and support development projects. With China's accession to the wto, China's electric bicycle exports will grow rapidly. In Europe and the United States, the electric bicycle has been asked to configure pollution-free battery.