Worries about used batteries: how to recycle them?

People without thought, he must worry about. The development of new energy vehicles began with the original intention of petrochemical energy depletion and reduction of environmental pollution, which is considered a long-term move; but if the recycling of waste batteries is not handled well to solve the problem, which causes environmental pollution, it is out of the original intention of developing new energy vehicles. . I have to say that judging from the current domestic situation, recent worries have already emerged. According to media surveys, the warranty period of electric vehicle batteries currently on the market is generally 5 to 8 years (or 100,000 to 150,000 kilometers). In accordance with the convention, theoretically the normal decay life of the battery will generally be set at this node. According to the practice widely circulated in the industry, 80% is generally regarded as the node at which battery capacity and cruising range decay. Car companies and dealers often use these two nodes to estimate the time for battery recycling. Although my country has only begun to promote electric vehicles in large numbers since 2014, it is still too early for the electric vehicles to be marketed after this point of time before the battery is scrapped, but some cities have piloted electric taxis and electric buses earlier, such as the 2008 Beijing Olympic Games. The first batch of electric buses has reached the point where the battery life is attenuated and should be eliminated. According to the data disclosed by the my country Automotive Technology Research Center, in 2015, my country's accumulated scrap of power lithium batteries was about 20,000 to 40,000 tons. If the data is true, where did these discarded batteries go? And battery experts reminded that if fast charging is often used or driving habits do not comply with battery maintenance rules, and the quality of the battery is uneven, many batteries will be reduced to a state that is not suitable for normal use in 3 to 5 years. In other words, almost by 2018, there will be a large number of battery elimination and recycling needs in China. According to sales calculations, by 2020, my country's only pure electric (including plug-in) passenger vehicles and hybrid power passenger vehicles will have a cumulative scrap volume of 120,000 to 170,000 tons of power lithium batteries. If the data becomes actual, where do these discarded batteries go? It is understood that currently scrapped power lithium batteries usually have the following disposal methods: one is to remanufacture, that is, to replace damaged parts on the battery and re-assemble it to an electric vehicle; the other is to transform the battery, that is, to change the adjustment of the battery (control the engine). The third is recycling, that is, analyzing and extracting precious metals, chemical materials and by-products in the battery, and selling them in the raw material market or reinvesting in the processing of car batteries. These kinds of disposal methods are simple to say, but it is difficult to enter the actual operation process, especially industrialization. Except that some battery reuse technologies are still in the experimental stage and are temporarily difficult to commercialize, the bigger problem lies in the recycling process. A battery company stated that it is in the interests of the battery company to establish a recycling chain, but it requires the cooperation of upstream and downstream companies and strict government supervision. To guide the used batteries into the formal solution channels, it is necessary to establish a convenient battery recycling network. This requires a high cost, and it is not enough to rely on the efforts of battery companies alone. It must rely on the natural sales network of car companies. However, most of the current car companies are negative in the battery recycling process. The formal channels are not smooth, and used batteries will inevitably flow to uncontrollable private areas. This is a very dangerous thing. Because battery disassembly requires a high level of expertise, and private workshops simply cannot meet the requirements, it is difficult to control battery disassembly, and environmental pollution is inevitable. Some environmental experts claim that a 20-gram cell phone battery can pollute the water of three standard swimming pools, while a waste battery from an electric car can pollute nearly 33.3 hectares of land. It is reported that in the field of low-speed electric vehicles, there was a saying that the electrolyte was poured straight into the ditch. If the power lithium battery for automobiles is also arbitrarily solved by small workshops, the environmental pollution caused will be very terrible. What is the solution to the worries of used batteries? In addition to increasing Ru0026D investment, breaking through the technical bottleneck of waste power lithium battery disposal, and finding a feasible path that is both environmentally friendly and economical, it is also necessary to focus on recycling articles. On the one hand, it is necessary to pioneer the exploration of unified battery technical standards to lay the foundation for large-scale unified recycling in the future; on the other hand, it is necessary to introduce policies and regulations to clarify the main body of battery recycling and related responsibilities, and provide appropriate subsidies to recycling companies. We will also strengthen supervision of private battery dismantling activities and strictly control the flow of batteries into informal channels.