As more and more countries attach importance to environmental protection, new energy vehicles are being developed and promoted in more and more countries. At the same time, industry insiders estimate that the total scrap of new energy vehicle batteries in 2015 is about 20,000-40,000 tons. The recycling and utilization of lithium-ion batteries for new energy vehicles has become a problem that can not be ignored.
Power lithium ion battery service life is about 20 years, but the car, only in three to five years will be canceled, because of its capacity attenuation the initial capacity of less than 80%, the range of electric vehicles will be significantly reduced, power lithium ion battery must be replaced every three to five years, so the price is on the high side also limits the electric car to promote the important factors. According to China's automotive technology research Center experts estimate that China's total scrap battery in 2015 about 20,000-40,000 tons. By around 2020, the cumulative amount of discarded batteries for pure electric passenger vehicles and hybrid passenger vehicles in China will reach 120,000-170,000 tons.
The reporter learned that the technical route of battery recovery is quite complex. For example, in the treatment of spent lithium ion batteries, the first step is to preprocess them, including discharge, disassembly, crushing and sorting; Plastic and iron shells are recyclable after removal; Then the electrode materials were extracted by alkaline leaching and acid leaching, and then extracted by various processes. The complexity of the process has put off many recyclers.
From the current situation of European and American countries, some manufacturers are vigorously promoting the research and utilization of power lithium ion battery recycling, for large-scale commercial recycling technology reserve. Meinecke, a Belgian company, for example, has developed ultra-high-temperature technology to treat used lithium-ion batteries. Toyota Motor Corp. is also working with Toyota Motor Corp. to recycle lithium-ion batteries. A US company has done the opposite, treating lithium-ion batteries at ultra-low temperatures with liquid nitrogen to make them chemically inert. Even Germany, which has no battery manufacturer, is building a recycling network.
Low temperature lithium iron phosphate battery 3.2V 20A
Low temperature lithium iron phosphate battery 3.2V 20A
-20℃ charging, -40℃ 3C discharge capacity ≥70%
Charging temperature: -20~45℃
- Discharge temperature: -40~+55℃
-40 ° C Maximum discharge rate: 3C
-40℃ 3C discharge capacity retention rate ≥70%
It is understood that the current research on power lithium ion batteries in China is mainly focused on improving their safety performance and service life, recycling links are relatively few, and even serious disconnection. Lithium ion batteries, power lithium ion batteries, contain a large number of toxic heavy metals such as mercury, cadmium and lead, and their anode and cathode materials, electrolyte solutions and other substances have a considerable impact on the environment, the number of thousands of tons per year is indeed a problem in the future. With the overall rise in demand for electric vehicles, lithium-ion batteries will be in short supply by 2017, so domestic experts call for preliminary research on the recycling and utilization of power lithium-ion batteries and the establishment of a special recycling organization. As more and more countries attach importance to environmental protection, new energy vehicles are being developed and promoted in more and more countries. At the same time, industry insiders estimate that the total scrap of new energy vehicle batteries in 2015 is about 20,000-40,000 tons. The recycling and utilization of lithium-ion batteries for new energy vehicles has become a problem that can not be ignored.