What are the advantages and disadvantages of lithium iron phosphate batteries?

1. Improved safety performance The p-o bond in the lithium iron phosphate crystal is stable and not easy to be destroyed. Even in the case of high temperature or overcharge, the structure will not collapse like lithium cobalt oxide, will not generate heat or form strong oxidizing substances, so it has good safety. 2. Improve life. The cycle life of long-life lead-acid batteries is about 300 times, and the highest is about 500 times. The cycle life of lithium iron phosphate power lithium batteries is more than 2000 times. Using standard charging (5 hours rate), it can reach 2000. Times. Lead-acid batteries of the same quality are new half a year, half a year old, and half a year for maintenance. The longest use time is 1 to 1.5 years, while the lithium iron phosphate battery is used under the same conditions, and the theoretical life can reach 7 to 8 years. In general, the performance-price ratio is theoretically more than four times that of lead-acid batteries. High current 2C, fast charge and discharge. With a dedicated charger, the battery can be charged 1.5c in 40 minutes, and the starting current can reach 2C, but lead-acid batteries have no such performance. 3. Good high-temperature performance, 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℃. Wide operating temperature range (-20c-75C), the maximum electrical temperature of high-temperature resistant lithium iron phosphate can reach 350℃-500℃, while the maximum electrical temperature of lithium manganate and lithium cobaltate is only about 200℃. 4. Large capacity When the battery continues to run at full load, it will quickly drop below the rated capacity. This phenomenon is called the memory effect. Like nickel-metal hydride batteries and nickel-cadmium batteries have memory, but lithium iron phosphate batteries do not have this phenomenon. No matter what state the battery is in, it can be charged and used at any time without having to turn it off before charging. 6. Lightweight Lithium iron phosphate batteries with the same capacity are two-thirds of lead-acid batteries in volume and one-third of lead-acid batteries in weight. 7. Environmental protection lithium iron phosphate batteries are generally considered to be free of 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 are absolutely green battery certificates. Therefore, lithium-ion batteries are favored by the industry mainly because of environmental considerations. Therefore, lithium-ion batteries are included in the 863 National High-tech Development Plan during the Tenth Five-Year Period and become a key national support and encouragement project. With my country's accession to the WTO, my country's electric bicycle exports will rise rapidly, and electric bicycles entering Europe and the United States already require pollution-free batteries. However, some experts pointed out that environmental pollution caused by lead-acid batteries mainly occurred in the company's production process irregularities and recycling process. Similarly, it is good for lithium-ion batteries to belong to the new energy industry, but it cannot prevent the problem of heavy metal pollution. Lead, arsenic, cadmium, mercury, chromium, etc. processed by metal materials 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 after scrapping. Lithium iron phosphate batteries also have their shortcomings: for example, low-temperature performance, low vibration density of the cathode material, lithium iron phosphate batteries with the same volume and capacity than lithium cobalt oxide and other lithium-ion batteries, so there is no advantage in micro-batteries. When lithium iron phosphate batteries are used for power lithium batteries, they are the same as other batteries, and they have to face the problem of battery consistency. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: The impact of 18650 lithium ion battery manufacturing process on life