2019年12月17日星期二

Recycling of power batteries is difficult to pass through the environmental assessment The entire industrial chain must work together to promote

Recently, Xin Guobin, deputy director of the Ministry of Industry and Information Technology, pointed out that it is necessary to publish the management measures for power battery recycling as soon as possible. According to data released by the China Association of Automobile Manufacturers not long ago, in 2017, the sales of new energy vehicles in China were 700,000 vehicles. At this point, the number of new energy vehicles in China has reached 1.6 million, and a large proportion of them are pure electric vehicles. Behind this is more and more power batteries into scrap recycling.

Some studies predict that by 2020, the cumulative annual scrap of electric vehicles for electric vehicles in China will reach 32.2 GWh. According to the scrap situation of vehicles and the actual operation of the market, it is expected that the recycling of power batteries will be greatly improved in 2018. However, can these power batteries that enter the end-of-life recycling process be used to achieve echelon utilization? Is power battery recycling ready? At present, there are still no definitive answers to this series of questions.

Passage utilization is subject to battery performance

Step-by-step utilization has always been the ideal place for power batteries to provide kinetic energy to vehicles. No matter whether it is from the perspective of green development or from the point of view of economic operations, the use of ladders is highly welcomed by all parties. However, the reality is not ideal.

"Now the power battery that enters the scrapped link comes from the earliest batch of new energy vehicles, but the early battery performance is very poor, and it is difficult to meet the requirements for ladder utilization." Deputy General Manager, Beijing Sideme Resources Reuse Research Institute Co., Ltd. Guo Jie pointed out in an interview with reporters that although everybody wants to use batteries that have been eliminated from new energy vehicles first for energy storage, it is difficult for the batteries that enter the end-of-life recycling sector to do what they want. This is also one of the main reasons why many new energy vehicles demonstrated and promoted in the "Ten Cities One Thousand Vehicles" stage are idle and cannot be reused. As the battery performance of these vehicles is not up to standard, it is difficult to achieve step-by-step utilization.

It is difficult to achieve the use of ladders. Where did these batteries eventually go? The reporter learned that due to research and testing needs of car companies, power battery companies, and research institutions, many power batteries to be scrapped have been recovered by these companies for use in experimental research, and direct inflows into scrapped and dismantled enterprises are rare.

In addition, during the investigation of the reporter, it was also found that due to the early consideration of recycling, the power battery design did not adopt an easy-to-remove method, which made it more difficult to disassemble the battery pack. In the step utilization, since the battery pack is composed of many monomers, it is also a time-consuming and labor-intensive task to check whether each battery cell can be reused, which increases the difficulty in the utilization of power battery steps, and some used batteries. Recycling agencies even "respect insensitivity" to some non-removable battery packs. Zhang Ying, secretary-general of China Association for Recycling and Recycling, said that the detection technology of used batteries is not mature enough, and the remaining life and battery status cannot be systematically evaluated, which results in a significant reduction in the economics of recycling.

Recycling of batteries is difficult

For the development of the power battery scrap recycling industry in the next few years, Zhang Ying introduced that some studies predict that by 2020, the cumulative scrap of power batteries will reach 32.2 GWh, about 500,000 tons. By 2020, the overall scale of lithium battery recycling market will reach 15.6 billion yuan. By 2023, the scrapped amount will reach 101GWh, about 1.16 million tons. According to the development trend of new energy vehicles, power batteries may usher in the first wave of decommissioning in 2018 and will grow rapidly in the next three years.

It is to see such a prospect, although the power battery recycling market still has many problems to be solved, it still attracts a lot of capital to join, plus as Guo Jie said, the Ministry of Environmental Protection has made it clear that the recovery and dismantling of power batteries is not Need special qualifications, which means that the industry is open to all companies. Because there is no qualification threshold, many capitals have entered this field.

However, opportunities do not mean that everything is going smoothly. Although the power battery recycling and dismantling industry does not have special requirements for the qualifications of companies, because this industry is heavily polluting, it is very difficult for newly-built companies to pass EIA. For example, one practitioner who asked not to be named told reporters that the leaders of the Beijing Municipal Bureau of New Energy clearly stated that there will be no end-of-life recycling and dismantling organization for power batteries within Beijing. Guo Jie also stated that in Beijing's relevant plans, the power batteries that are being phased out by Beijing New Energy Vehicles will all be used for energy storage and will not be scrapped and disassembled. However, due to the poor performance of early battery packs, the utilization rate of ladders is not high.

It is understood that the power battery scrap recycling industry currently uses the hydrometallurgy process to process power batteries. However, because this process is derived from the heavily polluting chemical industry, it is difficult to be accepted by Beijing, Tianjin, and other places where the environmental impact assessment is extremely demanding. The power battery pack belongs to the ninth dangerous goods. According to the related regulations, its transportation should also comply with the relevant provisions of the dangerous goods transport, which increases the cost inevitably, which intensifies the recovery and disassembly of the power battery pack. At the same time, the recovery and dismantling of power batteries does not require special qualifications. However, because power batteries are hazardous wastes, companies that want to scrap them for dismantling and reuse must have a hazardous waste recycling permit. It is not easy, and there are strict requirements on technology, equipment and environmental assessment.

Guo Jie introduced that Beijing Seidemie Resources Reuse Research Institute Co., Ltd. is trying to use physical methods to process power batteries, dismantle the used battery packs into physical materials and recycle them separately. This method does not involve chemical processing. , so you can get the EIA permit. However, Guo Jie also said that to build a production line with annual recycling capacity of about 3,000 tons, it needs 30 million yuan of capital investment. In addition, there are people in the industry who are skeptical of purely physical methods for recycling and dismantling power batteries. It is difficult to completely separate chemical materials that have been mixed together without chemical treatment.

The entire industry chain must work together

Whether the recycling rate of the power battery can be improved cannot be solved by the process of recycling the dismantling end, which requires the linkage of the whole industry chain, especially the establishment of the producer responsibility extension system. As a power battery recycling company worker said: "If a battery pack is not designed to be dismantled at the time of design, it will be very difficult to dismantle the battery pack smoothly when entering the recycling process, let alone reusing it. Even if it can be dismantled, it will increase a lot of processes, which will take time and effort." Guo Jie also said that although the "Interim Measures for the Management of Recycling and Use of Power Vehicles for New Energy Vehicles" (hereinafter referred to as "Provisional Measures") is expected to be implemented at the beginning of this year according to the plan. Implementation, but previously produced battery packs are not included in the "Interim Measures," the code management, traceability is difficult, the battery pack is also poor detachability, this part of the disposal of used batteries is still very difficult.

As the drafting unit of the “Provisional Measures”, the relevant person in charge of the China Automotive Technology and Research Center (hereinafter referred to as “China Automobile Center”) stated that the end-of-life control of power batteries must be strengthened and the producer responsibility extension system should be implemented to allow auto manufacturers to Assuming the main responsibility for power battery recycling, battery manufacturers ensure the effective use and environmental protection of power batteries, which is the basic principle of the "Interim Measures." Li Zhenluo, an engineer in the Automotive Industry Policy Research Division of China Automobile Industry Center, said that the scrapping and recycling of power batteries will adhere to the concept of product life cycle and give full play to the market. The core measures of the “Provisional Measures” are code and traceability management, establishing a unified power battery product code. Standards, traceability information management systems and related information sharing mechanisms; ensure that the source of power battery products is available, traceable, and controllable. Zhang Ying also stated that the “Provisional Measures” clarified the series of requirements for power battery design, access, production, sales, maintenance, replacement, scrapping, and recycling, and also proposed a penalty mechanism. If it can be successfully landed, strict enforcement will promote the power battery. The regular and orderly development of recycling. "However, there is still a lot of uncertainty in the implementation of regulatory enforcement and market practices," said Zhang Ying.

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