Abstract:

Currently, there is a controversy about the reuse of power batteries. One view is that retired batteries do not have any secondary use value and should be recycled. Another view is that most retired batteries can be used. This study explains the author's views on the judgment standard of whether power batteries can be secondary-used, the key problems in the secondary use batteries, and the future work that should be undertaken. Whether power batteries can be secondary-used should be judged in terms of safety and economy. The key issues to be considered include the rapid diagnosis of the battery state, battery reorganization, and the selection of application scenarios. Currently, the development of breakthrough technologies to evaluate the safety risk of retired power batteries, small-scale demonstration applications, and improvement in data systems is required.

Key words: power batteries, secondary-used, judgment standard, state diagnosis