Analysis of the seven advantages of lithium iron phosphate batteries

Advantages of lithium iron phosphate battery 1. Improvement of safety function The p-o bond in the lithium iron phosphate crystal is stable and difficult to distinguish. Even in the case of high temperature or overcharge, they will not collapse like lithium cobalt oxide to generate heat or form strong oxidizing substances, so they have good safety. Chen said that in the practice of acupuncture or short circuit testing, a small part of the samples were found to be incinerated, but no explosion occurred. However, in the overcharge test, a high voltage several times higher than the discharge voltage was applied, and an explosion still occurred. But compared with the general electrolyte lithium cobalt acid battery, its overcharge safety has been greatly improved. 2. Life improvement lithium iron phosphate battery refers to a lithium battery using lithium iron phosphate as the positive electrode material. The cycle life of the tortoise age lead-acid battery is about 300 times, and the highest is about 500 times, while the cycle life of lithium iron phosphate power lithium-ion battery is more than 2000 times, and the standard charge (5 hour rate) can reach 2000 times. Lead-acid batteries of the same quality have new six months, old six months, six months of protection and six months of protection, up to 1 to 1.5 years. Under the same conditions, the theoretical life of lithium iron phosphate batteries will reach 7 to 8 years. In summary, the functional price of lead-acid batteries is more than 4 times that of theoretical lead-acid batteries. High-current discharge can quickly charge and discharge high current 2C. In a special charger, the battery can be fully charged within 40 minutes of 1.5C charging, and the starting current can reach 2C, but lead-acid batteries do not have this function. 3. Good high-temperature function, the maximum electric temperature of lithium iron phosphate can reach 350℃-500℃, while the maximum electric temperature of lithium manganate and lithium cobaltate is only about 200℃. The operating temperature is widely planned (-20c75C), and the maximum electric temperature of high-temperature resistant lithium iron phosphate can reach 350℃500℃, while the maximum electric temperature of lithium manganate and lithium cobaltate is only about 200℃. 4. Large capacity has a larger capacity than ordinary batteries (lead-acid, etc.). 5 Ah-1000 Ah (single) 5. No recall effect When rechargeable batteries are often running at full load, their capacity will be less than the rated capacity value. This phenomenon is called the recall effect. Ni-MH and Ni-Cd batteries have been recalled, but lithium iron phosphate batteries do not have such a phenomenon. No matter what the battery is in, it can be charged and used. Don't charge it before using it. 6. Lightweight and the same standard capacity lithium iron phosphate battery is two-thirds the size of lead-acid batteries and one-third the size of lead-acid batteries. 7. Environmentally-friendly lithium iron phosphate batteries are generally considered to be free of any heavy metals and rare metals (nickel-metal hydride batteries should be rare metals), non-toxic (SGS certified), non-polluting, comply with European RoHS regulations, and must be a green battery certificate. Therefore, lithium batteries are favored by the industry. First of all, environmental protection considerations. Therefore, the battery has been included in the 863 National High-tech Promotion Plan for 10 years and has become a key national support and promotion project. With my country's accession to the WTO, my country's electric bicycle exports will increase, and electric bicycles entering Europe and the United States have been required to be equipped with pollution-free batteries. However, some experts pointed out that the environmental pollution caused by lead-acid batteries mainly occurs in the company's non-standard processing and recycling processes. Similarly, lithium batteries have good effects as a new energy source, but they cannot prevent heavy metal pollution. During the metal production process, lead, arsenic, cadmium, mercury and chromium may be released into dust and water. The battery itself is a chemical substance, so there may be two types of pollution. The second is battery pollution in the future. Lithium iron phosphate batteries also have their shortcomings: for example, poor low-temperature performance, low vibration density of the cathode material, the same volume of lithium iron phosphate batteries than lithium cobalt oxide and other lithium batteries, so there is no advantage in micro-batteries. When used for power lithium-ion batteries, lithium iron phosphate batteries and other batteries, they have to face the same battery problems. 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