Who is vastout?

Who is vastout?

The new energy automobile industry has entered the rapid growth period, and the output of the whole vehicle is rapidly rising year by year. According to the “Energy Saving and New Energy Automobile Industry Development Plan” announced by the State Council, in 2020, my country’s pure electric car and plug-in The cumulative production and sales of hybrid vehicles exceed 5 million. A driven by the demand of the downstream vehicle market, the power lithium battery industry in the upstream of the industry chain also enters the expressway, according to authoritative data, 2016 my country’s automobile power lithium battery production is 30.

8GWh, up 82% year-on-year. The power lithium battery is the core of the new energy vehicle. It is increasing in battery production.

When the product is placed in the market, a problem that cannot be ignored has been urgently in front of us, that is, the recycling of waste lithium-ion batteries.. According to statistics, in 2016, my country’s dynamic lithium battery has accumulated approximately 2-40,000 tons.

It is expected that in 2018, my country’s accumulated waste-powered lithium battery will reach 12.08GWH, and the accumulated drain will reach 1.72,500 tons.

. According to the calculation, the number of recycling markets created from the recovery of cobalt, nickel, manganese, lithium, iron and aluminum and aluminum, and the water, and the market can reach 10.1 billion yuan in 2020.

And the size of the waste-powered lithium-ion battery market in 2023 will reach 25 billion yuan. 2016-2023 Dynamic lithium-ion battery recycling market scale (billion) future, recycling of waste dynamic lithium-ion batteries will form a very large market. This is not only because of the increasing amount of the power lithium-ion battery, but also because the composition and structure constituting the lithium ion battery is more complicated, including steel / aluminum shell, aluminum concentrate positive electrode load cobalt-free / lithium iron / nickel cobalt Lithium manganate, copper / nickel / steel collector load carbon, polyolefin porous membrane, lithium hexafluorophosphate / lithium carbonate / carbonate / ethylene carbonate solution, etc.

, if not recovered, will A great impact on the environment. After the recovery, through technical extraction, many materials can also be used again..

For environmental protection and resource reuse, the recovery of dynamic lithium-ion batteries is necessary.. At present, there are two ways to use the dynamic lithium battery recycling: one way is to carry out the secondary utilization, that is, for the battery that is not scrapped is only the battery continues to be used by electric vehicles, and the method for unpacking the battery pack is tested.

Screening, then reconnect the available battery, such as applied to the energy storage area; another way is to disassemble the power lithium battery that has been scrapped, recover the materials and reuse. First, the secondary use of the current stage, the end of the electric vehicle power lithium battery life is specified by 80% of the initial capacity..

In other words, when the vehicle ran for 5 to 10 years, when the power lithium battery is about to be scrapped, the battery can still be used, but the performance of the battery has decreased, such as reduced capacity, new internal resistance, etc.. Currently, more common processing methods are to continue use of these scrap batteries.

It can continue to be used to penetrate the peak, inhibit noise, suppress noise, etc.. The scrapped lithium-ion battery is used to form a power storage system for solar power and wind power, and is one of the current comparison of the application direction.

. In this regard, many Japanese companies, including 4Renergy, Sharp, NEC, including Nissan and Sumitomo joint ventures, including Nissan and Sumitomo joint ventures, are in carrying out the R & D and application of this power storage system, and some important for power companies. Some important face-oriented family.

The picture below is an example of a power storage system in a family home. The reason why chooses to apply scrap batteries to solar power generation and wind power generation power storage systems because solar power generation and wind power are affected by weather factors, and electricity is not easy to sustain power..

Taking solar power as an example, the solar panel can output a lot of power when the sun is sufficient, but the output power will be very small at night or rainy days.. Power companies usually do not directly connect this possible fluctuating power to the grid, but store the power storage system first, and then output stable electric power outside the power storage system.

. In the case of Nissan LEAF, the Nissan is “scrapped” when the battery capacity of LEAF has dropped to 70%..

Leaf’s lithium-ion battery, factory capacity is 24KWH, minus 70% can also store 16.8kWh, such as directly taken disassembly without excessive waste, and its remaining energy storage space can basically meet the requirements of the power storage system Thus, it is good to achieve the value of secondary applications..

my country has already begun to implement comprehensive utilization of wind energy and photovoltaic, and has huge market space in power storage system construction and application.. Japanese company practices, for us to supply a good related experience in achieving the secondary use of dynamic lithium-ion batteries.

Second, the treatment method of dismantling and recycling is currently the treatment method of recycling of recycling: high temperature metallurgy: a lithium-ion battery with a simple mechanical crushing with high temperature calcination, and sierate fine powder containing metals and metal oxides.. The process of high temperature metallurgical law is relatively simple, suitable for large-scale treatment, but battery electrolytes and other ingredients are burn easy to cause atmospheric pollution.

Wet Metallurgy Law: After breaking the discard battery, selectively dissolve with a suitable chemical reagent, isolated metal elements in the leaching liquid. The process of the wet metallurgy method is good, suitable for the recovery of small and medium waste lithium-ion batteries, but the cost is higher, and the waste liquid should be further processed, otherwise environmental pollution will also occur..

Physical dismantling: The battery is broken, screened, magnetic separation, fine pulverization and classification, and then performs a high content substance, and then carry out the next recovery process.. The process of physically dismantling method is very environmentally friendly, and it will not cause secondary pollution to the environment, but its processing is low and time consuming.

. Joint Recycling Process: By optimizing, using the method of joint recovery process, play the advantages of various basic processes, and improve the recycling economic benefits as much as possible. The Ministry of Industry and Information Technology organized “Interim Measures for the Administration of New Energy Automobile Power Battery Recycling” (Draft for Comment) on December 1, 2016.

The opinion encourages automobile production companies, battery production companies, recycling dismantling companies and comprehensive utilization companies, etc.. The powerful lithium-ion battery recovery is still in our stage, in the reasonable layout construction of battery recycling market, improving the recycling network, improving regular channel recovery efficiency, etc.

, and also give greater support efforts at all levels.. With the continuous strengthening of environmental protection and resource cycles, and the active intervention of vehicle and power lithium battery companies, my country’s battery recycling industry will eventually follow health and orderly benign orbit development.

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