Battery recycling

　　Author ：Iflowpower – Portable Power Station Supplier

This month, the active new energy sector related concept stocks became a beautiful landscape in the current sluggish city, and behind this, the new energy vehicle production and sales have risen sharply with the top 5 months of this year. The latest statistics of the SMA Association show that my country's new energy vehicle has produced 132,000 units in May, 2016, the sales of 126,000 units were sold, and 131.4% and 134.

1% respectively were over the same period of the previous year. New energy car production and sales have not only reflected the stock price of relevant company, but also stimulates many companies' investment enthusiasm for powered lithium-ion battery production. However, there are industry insiders that the production and sales of new energy vehicles have increased to the country's driving lithium-ion battery products from 25 companies in the directory, but large-scale technical content is low battery production, it may make domestic battery production by shortage excess.

Behind the hot, however, it is contrary to the market market, the new energy vehicle is based on the low user satisfaction, and the word of mouth continues to fall. On October 9, last year, my country's Quality Association, the National User Committee announced the fourth national auto industry user satisfaction assessment (CACSI), the new energy vehicle market, the user satisfaction score, only 65 points, better than the whole Level is 14 points. Among them, the most important one is the complaint of the user's service life.

At present, there is still a certain gap between my country's battery technology than international levels, and new energy car core technology represented by power lithium-ion batteries needs to be improved. Although my country has gradually mastered core technology in the field of dynamic lithium-ion battery, my country's new energy industry chain is still lacking in the system capacity, and the system capability of manufacturing efficiency, quality monitoring, equipment system is current power lithium. Key to the important missing ion battery.

It seems that there is a huge environmental problem, including the battery of the new energy car, the same battery recycling is also the "heart of the heart" in the heart of the environment. If my country is committed to building the development of electric vehicles in the new energy market, then there is no contaminated dynamic lithium-ion battery recovery problem, and the main body of the past battery recycling responsibility does not clearly cause chaos in the battery recovery market, even causing a lot of Environmental pollution. In recent years, the problem of power battery recycling and utilization of new energy vehicles is gradually entering the public vision.

According to industry analysts, new energy vehicles have not entered a large-scale scrap phase, but the number of rapid rises in the past two years will inevitably lead to powerful automotive battery recovery issues into industry concerns. The lithium-ion battery in which a lithium ion battery is once called "green battery", but experts point out that waste lithium-ion batteries will also cause environmental pollution. Industry insiders pointed out that with the development of the world's energy economy and the increasing living standards, developed countries attach great importance to green recycling and scientific regeneration of batteries, and develop a range of regulations to implement unified management, recycling and handling, in users, recyculations , Renewable factory, battery company has gradually formed a benign "closed circuit" cycle.

From the shortage of high-speed rise in the production and sales of excessive new energy vehicles, it is as stimulant for the power lithium ion battery. According to my country's Chemistry and Physical Power Industry Association Statistics, it is expected that the production of the end of 2016 will reach 32GWH. According to incomplete statistics, recent national high-tech, Nandu Power, Shanfu, * ST Qianjiang and other listed companies have announced, and the power lithium-ion battery project is expanded, the increase and the acquisition plan.

However, there are industry insiders that the production and sales of new energy vehicles have increased to the country's driving lithium-ion battery products from 25 companies in the directory, but large-scale technical content is low battery production, it may make domestic battery production by shortage excess. However, my country's battery production company has a large number, small scale and uneven quality, and many small and medium-sized companies are still using backward process technology, which leads to high energy consumption and environmental pollution, and the development of battery industry is still grim. As the new energy car situation is good, some people have issued questions: 5 years or years later, these cannot be continued to use the power lithium-ion battery on the new energy car, what should I go? my country's automobile technology research center predicts that by 2020, my country's electric vehicle power lithium-ion battery accumulated scrap volume will reach 120,000 to 170,000 tons.

Implementation of steps "1 20 grams of mobile phone battery can pollute 3 standard swimming pool volumes, if abandoned on the land, can make 1 square kilometers of land pollution for about 50 years. Imagine, if a few tons of electric vehicle power lithium-ion batteries are discarded in a natural environment? A large number of heavy metals and chemical substances enters nature, which will cause greater pollution to the environment. "Wu Feng, a professor of Beijing Institute of Technology, publicly expressed.

Nowadays, many new energy vehicles are committed to consumers' life and quality of warranty for 10 years, but if considering the use environment, the average life of the power lithium-ion battery is 5 years. If these retired batteries are directly used for resource recovery, it is inevitable that the effective way to play its function is to the maximum, which is the step utilization, and then the resource recycling. This is a valid path that the company and the environmental protection department want to achieve, but it is not easy to achieve it.

According to the current development speed of new energy vehicles, the recovery of retired dynamic lithium-ion batteries has taken to the countertop, and it is urgent to solve it. As the academician Yang Yusheng, the academician Yang Yusheng in my country said: "These scrapped power lithium-ion battery manufacturing technology is advanced, even if it still maintains high safety and electrical energy, it is necessary to use step-by-step utilization to realize waste power lithium-ion batteries. Resource utilization maximizes.

"At present, there have been many abnormal dynamic lithium-ion batteries that have been inspected and restructured. For example, hundreds of electric buses in the 2008 Beijing Olympics, after 3 years, their batteries have been used to wind power and photovoltaic storage. Experts say that when the power lithium-ion battery is removed from the national standard, when the battery is removed from the new energy car, there is a considerable capacity and a broader use space.

The powerful lithium-ion battery that will be retired is applied to the field of energy storage. Whether it is economical or environmentally friendly, it is a good choice. However, retired batteries can be used as they can be combined like imagination.

On this issue, there are still some obstacles in reuse technology in my country. According to reports, when the battery is used, the battery consistency is very large compared to the new battery, which has caused a big obstacle to group use. At the same time, when the battery capacity, voltage, internal resistance, etc.

, when the step is used, it will form a fell in the number of cycles, which causes great difficulties on the later use. The biggest problem in the lack of standard power lithium-ion batteries in the field of recycling is the lack of recycling standards, and there is also a problem with step utilization. Wang Ziyue, director of the National 863 Electric Vehicle Major Special Power Lithium Ion Battery Testing Center, said how to carry out the rules and use the current lack of standards.

"What extent to which the battery capacity can enter the next step, there is no clear standard, what is the degree Cannot use the ladder again, there is no clear standard to enter the recycling program to refer to. "It is understood that in addition to lack of recycling standards for dynamic lithium-ion batteries, the qualifications of recycling companies have also become another bottleneck that restricts battery recycling. With the deepening of battery attenuation, the safety performance of the battery is constantly decreasing, and the recycling company must have corresponding means and capabilities, and there are few companies with corresponding qualifications.

Therefore, experts say that it is necessary to do the safety recovery of the battery. The reality is that domestic lithium-ion battery varieties have a wide variety, and the battery structure is complex and there is no fixed standard. According to data, the cost of recovering lithium carbonate from the lithium-ion battery is more than 5 times more of the company's direct production costs, leading to the lack of recycling enthusiasm, and the government lacks encouragement policies, and the dynamic lithium-ion battery is in the face of great difficulties.