Author ：Iflowpower – Portable Power Station Supplier
According to the latest news, in order to promote the recycling of lithium-ion battery materials, the US Department of Energy announced that it will officially launch the construction of the Alban national laboratory battery recycling R & D, and the Lithium-ion battery recovery award project to achieve 90% key from the waste battery. Key Material goal. This is amazing! What is the advancement of the recovery of the domestic lithium-ion battery? Mo, some experts will be announced for you .
¡¤¡¤¡¤¡¤ It is understood that my country's new energy automobile industry has gone through more than a decade of development history, as of the end of 2018, my country's new energy car ownership is 2.61 million. The new energy car guarantee continues to rise, and it will be a lithium-ion battery recovery and ladder utilization.
According to my country Automotive Technology Research Center, by 2020, my country's new energy vehicle power storage battery will reach 322,000 tons! In order to prevent environmental pollution and resource waste, the development of dynamic lithium-ion battery recycling and ladder is immersive. Wet metallurgical law dominates that foreign dynamic lithium-ion battery recovery technology is relatively mature but relatively single, and it is important to use fire-based metallurgical technology route. It is a relatively representative company for Belgium, and its process can use lithium iron phosphate ion batteries.
The iron turns into iron alloys, copper aluminum forms oxide slag, and then continues to smelting; the organic matter such as graphite, diaphragm and electrolyte in the lithium ion battery is finally burned in the form of a reducing agent. However, the process has high energy consumption, which cannot be directly recovered, the carbon emissions are huge, and the economic value is low. Regeneration uses the battery still lacks a lithium iron phosphate ion battery for recycling value.
At present, the domestic traditional power lithium-ion battery recovery company generally adopts the technical route of wet metallurgy. Due to the length of the processing process, the sewage such as strong acid, strong base, ammonia, etc., the sewage, etc.
Since the lithium iron phosphate ion battery contains only 2% lithium, according to the "2016 Hundred People" report data, the phosphate ion battery cannot be reached with the technical solution of wet metallurgy, and the 1 ton of lithium iron phosphate ion battery is treated only. Loss 430 yuan. In addition, wet metallurgy technology is sensitive to environmental requirements, and many areas that are strictly required for environmental requirements.
New technologies and new processes that have emerged in recent years have brought new opportunities for lithium-ion battery recycling. Physical method recycling technology has gradually realized industrialization. By refining physical dismantling technology, electrolyte and diaphragm can be recovered by the wet metallurgy process, seven raw materials in the battery (waste positive electrode powder, waste negative powder, aluminum foil, copper foil powder, electrolyte, diaphragm, battery) Housing, etc.
) The full component automatically separates and collects, according to the total weight of the battery, the recovery rate is as high as more than 90%, has the characteristics of short process flow, high efficiency, no pollution. In addition, the material repair technology can restore the waste, the negative electrode material, and the regenerative material can also return to the battery production link, thereby greatly improving the regenerative utilization of the waste power storage battery, which can not only handle the ternary battery, but the residual value Low phosphate ion battery, lithium manganate ion battery also has good economy. The dynamic lithium-ion battery recycling industry also faces these problems .
At present, the problems of my country's dynamic lithium-ion battery recycling industry have the following problems: a current market scrap in the market is still not placed and the residual value is lower. For recycling waste power, the battery production company is based on the corner waste of battery production, the test package of the whole vehicle production company, and the new energy vehicles that have been put into use in the early operation of the company have entered the scrap period, but the recovery remains less. At the same time, at this stage, the scrapped power storage battery is more early, the battery material is based on the lithium hydrogen, lithium manganese acid, lithium iron phosphate, and the dynamic lithium-ion battery is based on the process quality and battery material.
Lower value. The second-dynamic lithium-ion battery step utilization has a technical problem. The market has not fully opened the current, the residual detection of the dynamic lithium-ion battery, the remaining cycle is determined, the safety performance determination, etc.
In terms of cascade battery market, at present, the iron tower in the communication industry passed the railway use test, in the field of low-speed electric vehicles, electric bicycles, energy storage, the market has not fully released. The three comprehensive use of profit model is not mature, the battery standard is different. The battery information data has not been fully shared, and the comprehensive utilization technology has just started, the company has to invest a large amount of funds and manpower, and test, classify the recycling battery.
Re-encapsulate, comprehensive recombinant battery cost is higher. Four standards and technical specifications development lag Although the production design, information traceability, dismantling norm, and residual detection of the vehicle power lithium-ion battery have been announced, but the technical specifications of corresponding mandatory standards or operability are lacking. Different manufacturers' battery structure, material system gap is large, some auto production companies have not taken the initiative to disclose, disassemble, dismantling and storage technology descriptions, etc.
, integrated battery restructuring and evaluation are not standardized, these are not conducive to battery standardization, scale use. How to solve the problem? In response to the problems of the driving force lithium-ion battery recovery, the following improvements are proposed: First, because the power lithium-ion battery recovery industry is still in its infancy, the state should increase the policy support of the recycling company, follow the advanced philosophy of some countries in Europe, and related motivation Lithium-ion battery recovery company gives corresponding fund subsidies. Second, in accordance with policy development, the national industry authorities should make management measures to make policy documents, more operability.
For more direct punishment measures, the violations should be given to prevent scrapped power lithium-ion batteries from flowing into the business company. The third is to build an ecosystem of a full life cycle. Establish battery manufacturer, vehicle company, recycling company, comprehensive utilization company, comprehensive use of users and regenerative smelting companies, forming a linkage.
The fourth is to formulate relevant technical standards and regulations. Refining Comprehensive Utilizing the responsibility of upstream and downstream related subjects, strengthening the powerful lithium-ion battery ladder using industry access threshold, information traceability management, integrated battery management, comprehensive utilization funds and other relevant standard system construction. The research and development of dynamic lithium-ion battery pack dismantling process specification, and make a clear specification of classification, label, storage, information entry and traceability after battery dismantling.
Source: "my country's Chemical Information" maga.
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