What are the hidden dangers of lithium-ion batteries, and what about power lithium batteries in the future?

by:CTECHi     2021-07-08

The power lithium-ion battery recycling decision-making consultation salon co-sponsored by the Beijing Association for Science and Technology and the Literature and Information Center of the Chinese Academy of Sciences was held yesterday at the Beijing Greenland Center. Fei Weiyang, an academician of the Chinese Academy of Sciences, pointed out that in recent years, the key technology of pure electric drive has made rapid progress. Major breakthroughs have been made in the core technology of electric vehicles represented by lithium-ion power lithium batteries. However, the large number of applications of lithium-ion batteries will also lead to a large number of retirements. Lithium Ion Battery. Therefore, it is necessary to strengthen the research and development of advanced lithium-ion battery recycling technologies to achieve safe and efficient dismantling and integrated recycling of valuable metals to prevent secondary pollution.

Fei Weiyang believes that the recycling of power lithium-ion batteries is related to environmental pollution and must be paid attention to at the national level. This event gathers the Beijing Association for Science and Technology, the Chinese Academy of Sciences Literature and Information Center, scientific researchers, industry and industry associations, and capital and industrial operators such as Greenland Group. The concerted efforts of everyone will inevitably help the healthy and rapid development of the industry.

In the report, Sun Zhi, a researcher at the Institute of Process Research, Chinese Academy of Sciences, combed and detailed lithium-ion battery recycling technology. He also believes that paying attention to the recycling of lithium-ion batteries is considered from the perspective of resource supply safety and environmental pollution. In the future, we should sort out the industrial layout, upgrade the equipment technology and pollution prevention level, and guide industrial policies to prevent local markets from overheating and causing market volatility.

Cui Dongshu, a research expert on the automobile market of the my country Automobile Dealers Association, pointed out in the report that the dominant position of strong battery companies has become a characteristic of the development of the new energy automobile industry. The development of future batteries is about Vehicle companies bring huge crises and challenges. Therefore, battery recycling and resource utilization should be supported by battery companies (not vehicle companies), especially leading battery companies.

Yang Qingyu, senior consultant of my country Battery Alliance and senior researcher of Beijing Green Smart Energy Technology Research Institute, pointed out that the power lithium battery recycling industry chain includes battery recycling, echelon utilization, pretreatment, In multiple links such as material reuse, the integration of the industrial chain will be a development trend, but there are technical barriers, data barriers, and logistics requirements between various industrial links, and upstream and downstream cooperation must be strengthened.

It is understood that with the rapid development of the new energy vehicle market, lithium-ion batteries for new energy vehicles have entered a period of large-scale scrapping. On the one hand, they cause waste of resources and environmental pollution. On the other hand, many issues in various aspects such as lithium-ion battery recycling technology and standards must be further discussed. Sun Xiaofeng, vice chairman of the Beijing Association for Science and Technology, concluded that power lithium-ion batteries involve resources, technology, markets, policies, and other links. It is a systematic project. The results of experts and scholars who provide advice and suggestions from different angles will be supplied to the government through the Beijing Association for Science and Technology. Refer to decision-making consultation. The development of new energy vehicles in China has entered the fast lane. In 2018, the production and sales volume exceeded the one-million mark for the first time, reaching 1.27 million and 1.256 million, respectively, up 59.9% and 61.7% year-on-year, ranking first in the world. It is estimated that by 2020, production and sales will exceed the 2 million mark. The service life of power lithium batteries is generally 5 to 8 years, and the effective life is 4 to 6 years, which means that the first batch of new energy vehicle power lithium batteries put on the market is basically at the critical point of elimination. According to the calculations of the my country Automotive Technology Research Center, combined with factors such as the age of automobile scrap and battery life, the total scrapped power lithium batteries nationwide will reach 120,000 to 200,000 tons from 2018 to 2020, and the scale will reach 350,000 tons in 2025.

Currently, there are two important destinations for the retired lithium-ion batteries of new energy vehicles. One is tiered utilization, which is purchased by my country's tower company and used in the field of backup power for telecom base stations; The second is recycling. After disassembling scrap batteries, the heavy metals in them are refined and reused. From the perspective of the whole life cycle, the batteries used in the cascade must be recycled after they are finally scrapped.

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