1, lithium iron phosphate has some performance defects, such as low tap density and compaction density, which leads to low energy density of lithium ion batteries. Poor low temperature performance, even if nano-sized, carbon-coated, this problem has not been solved.
Dr. DonHillebrand, director of the Energy Storage System Center of Argonne National Laboratory in the United States, described the low-temperature performance of lithium iron phosphate batteries as terrible. Their test results of lithium iron phosphate lithium ion batteries show that lithium iron phosphate batteries cannot drive electric vehicles at low temperatures (below 0℃).
Although some manufacturers claim that the capacity retention rate of lithium iron phosphate battery is good at low temperature, this is under the condition of small discharge current and low discharge cut-off voltage. In this case, the equipment can't start working at all.
2. After years of development, lead-acid battery technology has made breakthroughs in specific energy, cycle life, high and low temperature adaptability and other issues. At present, it is gradually narrowing the gap with the international leading technology, reaching the international level in some core technologies and entering the international market more and more.
Application of lithium iron phosphate battery: Because lithium iron phosphate power battery has the above characteristics and produces various batteries with different capacities, it has been widely used soon. Its main application fields are: large electric vehicles: buses, electric vehicles, scenic spots, hybrid vehicles; Light electric vehicles: electric bicycles, golf carts, small flat-panel battery cars, forklifts, cleaning vehicles, electric wheelchairs, etc. Power tools: electric drill, chainsaw, lawn mower, etc. Remote control of cars, boats, planes and other toys; Solar energy and wind power energy storage equipment; UPS and emergency lights, warning lights and miner's lights (the best safety); Replace the 3V disposable lithium battery and 9V nickel-cadmium or nickel-hydrogen rechargeable battery in the camera (the size is exactly the same); Small medical equipment and portable instruments.
(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)