Electric vehicle power lithium battery recycling is forced to be perfected in the imminent system

著者：Iflowpower – Provedor de central eléctrica portátil

my country's energy storage network: Although electric vehicles are zero emissions, waste batteries are fatal, hoping that the automotive manufacturers use environmental protection to handle these waste batteries. Not long ago, netizens participated in the electric vehicle power lithium-ion battery in Weibo to cause pollution topic discussion. With the popularity of electric vehicles, battery recovery and reuse become a topic of many netizens care.

Netizen SimonRock said: Cleaning and environmental protection is the general trend of future motor vehicle development, and electric vehicles can achieve zero emissions, which is very helpful to environmental protection, but the choice of battery and later harmless treatment is especially important, should prevent new environmental pollution. Industry experts pointed out that as an important part of the new energy vehicle industry chain, the development of dynamic lithium-ion batteries in improving performance, the exploration of recycling and reuse models is also an incompetent issue. Battery recycling is forced by the phyngers.

The battery pollution is not a hole. The professor of Beijing Institute of Technology said: 1 20 grams of mobile phone battery can pollute the water of 3 standard swimming pools, if abandoned on the land, can make 1 square kilometers Pollution for more than 50 years. Imagine, if it is a 200 kg electric car power lithium-ion battery discarded in a natural environment? A large number of heavy metals and chemical substances enters nature, which will cause greater pollution to the environment.

According to the reporter, there is currently, the important research of domestic power lithium-ion batteries is in terms of improving performance, and the attention of recycling links is obviously insufficient. At this stage, there is a wide range of lithium-ion batteries on electric vehicles. Such batteries do not contain mercury, cadmium, lead oriented heavy metal elements, but their positive and negative electrode materials, electrolyte solutions and other substances are very Big impact.

my country's automobile technology research center predicts that in 2015, domestic power lithium-ion batteries accumulated a total of approximately 20,000 tons. By 2020, my country's electric vehicle power lithium-ion battery accumulated scrap volume will reach 120,000 to 170,000 tons. scale.

If there is no standardized battery recycling system, these batteries will undoubtedly happen to the environment. The useful value is usually used, and the life of the lithium-ion battery in the general environment is about 20 years, but when the battery capacity is attenuated to 80% of the battery capacity to 80% of the initial capacity, the renewal mileout of the electric vehicle Obviously reduced, so the actual use time is about 3 to 8 years. However, these used batteries still have value.

For energy storage systems, these batteries still have large use value, establishing a dynamic lithium-ion battery step utilization and recycling management system perhaps a feasible choice. Chen Jinchen, Professor, Tsinghua University, the battery is less than 80%, can continue to be used for power grid storage, or as a power source of low-speed vehicles such as electric versus, there is also a secondary utilization value. The ladder uses the value of the power lithium-ion battery to achieve a full play, thereby reducing the cost of the battery and promoting the popular electric vehicle.

If the waste battery is recycled, the elements such as copper, aluminum, nickel and cobalt in the battery can be used to use metallurgical process technology. Not only can it prevent the potential threat of the environment, but also effectively control the battery cost. Taking a nickel hydride-based lithium-ion battery, the nickel content of the waste nickel hydrogen power lithium ion battery is 30% to 50%, the cobalt content is 2% to 5%, the rare earth content is 5% to 10%, which has high recovery.

Economic Value. Yu Navy, Director of the Strategic Development of Bond Circular Technology Co., Ltd.

, told reporters that after recovery of waste batteries, after dismantling, breaking, alkali, acid immersion, an induction and other steps, and finally reducing the resulting product The original industrial-grade raw material required for battery production, for sale to battery manufacturer. We acquire waste batteries with a relatively low price. In addition, we are engaged in waste recycling.

Yu Haijun said. The recycling system has to be improved. At present, electric vehicles are in the marketing stage, and there is no wide range of applications.

The electric vehicle power lithium-ion battery has not had a large scale of scrap, so my country has not established a complete vehicle power lithium-ion battery recycling system. However, some developing faster cities have made experimental exploration, Shenzhen Energy Saving and Energy Motor Demonstration Promotion Leading Group Office, the director of the office, told reporters that Shenzhen has established a vehicle power lithium-ion battery utilization and recycling system. Every sale is 600 yuan, and the government takes 300 yuan, used to recover the power lithium-ion battery, initially establish the mechanism of battery recycling.

According to reporters, there is currently a certain number of nickel-hydrogen, lithium-ion batteries and cobalt-nickel-nickel regeneration companies, and the basis for recycling and renewable treatment of vehicle power lithium-ion batteries. The recycling service network is gradually expanding. According to industry experts, automobile power lithium-ion batteries and consumer electronics, nickel-cadmium, and lithium-ion batteries are basically the same, important to extract valuable metals such as nickel, cobalt, rare earth elements, and currently Basically have corresponding recovery processing technology.

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