In 2018, the state formulated a number of policies to promote the recovery of power batteries. At the same time, pilots of power battery recycling were launched in multiple cities. The purpose is to standardize the power battery recycling industry and do a good job of power battery recycling.
At present, the Beijing-Tianjin-Hebei region, Shanxi Province, Shanghai, Jiangsu Province, Zhejiang Province, Anhui Province, Jiangxi Province, Henan Province, Hubei Province, Hunan Province, Guangdong Province, Guangxi Zhuang Autonomous Region, Sichuan Province, Gansu Province, Qinghai Province , Ningbo City, Xiamen City and China Iron Tower Co., Ltd. are pilot regions and enterprises for power battery recycling.
Vigorously promote battery recycling to maximize the value of batteries
After 2018, new energy vehicle power batteries will enter a large-scale retirement. It is expected that the recovery of power batteries will reach 111,400 tons in 2019 and 257,000 tons in 2020. It is urgent to solve the problem of recycling and reuse of used power batteries.
Some analysts believe that the recycling market for used power batteries is expected to reach 5 billion yuan in 2018. By 2020 to 2023, the size of the used power battery recycling market will further increase to 13.6 billion to 31.1 billion yuan. In this emerging market, the scale of output value of 5 billion yuan cannot be ignored by any company or even a government agency, but it is not just a new industry.
In addition to the huge output value of power battery recycling, opening up the power battery production and recycling links can also reduce the current cost of power batteries, especially the nickel, cobalt, manganese, copper, aluminum, lithium and other battery key metals recovery Helps stabilize the supply and prices of these raw materials. At the same time, the environmental pollution caused by the irregular recycling of heavy metals in power batteries can be avoided.
Take a ternary battery as an example. The positive electrode contains a large amount of precious metals, of which cobalt accounts for 5-20%, nickel accounts for 5-12%, manganese accounts for 7-10%, lithium accounts for 2-5% and 7% plastic. Most of them are rare metals and should be reasonably recycled. For example, as a strategic resource, cobalt is widely used in various fields, in addition to lithium batteries and high-temperature alloys. It can be estimated that the recovery of precious metals is huge.
The recovered batteries are mainly used in stages and disassembled for recycling
There are currently two possible treatment methods for used power batteries:
I. Echelon utilization, power batteries retired from electric vehicles can be used in the storage of power stations, grid storage and other related fields as a carrier of electrical energy storage to display residual value when the battery is in good condition.
Second, dismantling and recycling, discharging and disassembling power batteries, refining raw materials, especially the recycling of nickel, cobalt, manganese, copper, aluminum, lithium and other battery main elements, to achieve battery material recycling and reduce manufacturing costs.
At present, lithium iron phosphate batteries can be used to realize residual value through the use of ladders. However, the ternary material batteries have different technical standards due to the lack of standardized technical indicators in the earlier countries, such as for use in ladders. The use of batteries requires testing, and the risk of the testing process is greater, so ternary materials batteries are still mainly dismantled.
The rapid growth of new energy vehicle sales has brought about a rapid increase in the scrap of power batteries, and the battery recycling market has a bright future. Faced with the arrival of more and more used lithium batteries, it is very important to establish a complete and healthy battery recycling system. Only in this way can the used lithium batteries be reasonably used and recycled to maximize the value of the battery and reduce the current battery. Manufacturing costs.