Why new energy markets with lithium iron phosphate batteries?

Source: 2020 - 03 - 23 sets hits: time why new energy markets with lithium iron phosphate batteries? 1. The improvement of the security features 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 to produce heat or forming strong oxidizing substances, therefore has good security. Reports have pointed out that, in practice, acupuncture or short circuit experiment found that 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. However, compared with the ordinary cobalt liquid electrolyte of lithium batteries, the overcharge security had the very big enhancement. 2. Improving the longevity of the lithium iron phosphate battery refers to the lithium iron phosphate as the anode material of lithium ion batteries. Long life cycle life of lead acid battery is about 300 times, up to 500 times, and lithium iron phosphate batteries, cycle life over 2000 times, the standard charge ( 5 hour rates) , can reach 2000 times. Lead-acid batteries are of the same quality 'new six months, six months old, maintenance and maintenance of six months', at best, but 1 ~ 1. 5 years, and lithium iron phosphate batteries, under the same condition, the theory of life will reach 7 ~ 8 years. Through induction, the functions of price theory is four times bigger than the lead-acid battery. 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, starting current can be up to 2 c, but lead-acid batteries have no this function. 3. 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 ℃. 4. High-capacity rechargeable battery often in full operation, its capacity will promptly is lower than the rated capacity values, this phenomenon is called the recall effect. Like nickel metal hydride, nickel cadmium battery, nickel cadmium battery has recalled phenomenon, but not the lithium iron phosphate batteries this kind of phenomenon, no matter in what state, can be used with charging, do not need to remove the recharging. 5. 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. 6, the environmental protection of lithium iron phosphate batteries generally do not contain any heavy metals and rare metals ( Nimh batteries need to rare metals) , non-toxic ( SGS certification) , no pollution, in line with European RoHS regulations for absolute green battery license. The main reason for the favor by industry as a result, the lithium battery is environmental protection. Therefore, battery was listed in '863' national '15' high technology development planning, become a national key supported and encouraged by the project. Along with our country joining WTO, our country electric bicycle exports will increase rapidly, and into Europe and the United States of electric bicycle has asked equipped with battery from pollution. But some experts pointed out that the environmental pollution caused by lead acid storage battery in non-standard enterprises in the process of the production process and recycling. Similarly, lithium battery good things belong to the new energy industry, but it cannot prevent heavy metal pollution problems. Such as lead, arsenic, cadmium, mercury and chromium metal materials could be released into the dust and water. The battery itself is a kind of chemicals, so there may be two kinds of pollution: one kind is produced during the production of waste pollution; Second, the waste battery pollution in the future.