What should be done with decommissioned power cells?

In June 2018, BYD officially stated that it had signed the British 18MW container energy storage project. This was the third order signed in the British market after the Biyadiji 43MW and 50MW energy storage projects. After the United States, BYD's energy storage business is another major market.

All the time, how to deal with the power battery on the electric vehicle after it is retired is a problem that all automobile manufacturers need to face. The average life expectancy of vehicle-powered batteries is about 5-8 years. Since the domestic promotion of new energy vehicles began in 2009, some vehicle-powered batteries have gradually entered the retirement period. Some studies have predicted that by 2020, The power batteries retired from new energy vehicles will reach 32.2 GWh. At that time, if the decommissioned batteries are processed, all car companies will need to solve it.

What should be done with decommissioned power cells? Zhangzifeng, chief engineer of BYD Electric Power Research Institute, said that most of the remaining capacity of the core retired from new energy vehicles is 60 % -70 % of the initial capacity. If the retired batteries are directly recycled and dismantled, it will be a big waste of resources. Escalating the use of decommissioned batteries will help to improve the life cycle economy of new energy vehicles and achieve energy conservation and environmental protection.

At present, in addition to BYD in China, such as the Ningde era, Guoxuan Gaoke, AVIC Lithium, ZTE Power, and Nandu Power Enterprise have all begun to deploy energy storage services; Internationally, BMW is recycling its retired batteries. At the end of 2017, BMW said it would use 700 recycled BMW i3 batteries to store energy, and the project has already achieved some energy storage and supply tasks at BMW's Leipzig plant.

With the gradual popularity of the electric vehicle industry, how to deal with the retired batteries on pure electric vehicles has always been a problem for governments and car companies. Compared to fuel trucks, pure electric vehicles do not produce carbon emissions, which to some extent solves the current global warming problem, but the subsequent battery treatment problem has emerged in people's minds. The domestic and foreign companies have begun to test the final solution of the retired battery, I believe that after a large number of tests, the retired battery treatment will have an effective solution.

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