Energy Storage Science and Technology ›› 2017, Vol. 6 ›› Issue (2): 243-249.doi: 10.12028/j.issn.2095-4239.2016.0090

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Second use potential of retired EV batteries in power system and associated cost analysis#br#

LIU Jian   

  1. Energy Research Institute of National Development and Reform Institute，China National Renewable Energy Center，Beijing 100038, China
  • Received:2016-11-16 Revised:2016-12-06 Online:2017-03-01 Published:2017-03-01

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Abstract: Second use of retired EV batteries not only effectively reduces costs of EV users, but also provides an alternative energy storage for the power system and helps mitigate the negative environmental impacts of EV batteries. Although some organizations attempted EV battery second use via demonstrations, the real potential of retired EV batteries and associated economic analysis are still insufficient. This paper therefore estimates the energy storage potential of retired EV batteries in China and conducted cost analysis accordingly. The study shows the large potential of retired EV batteries can be realized through improved battery module standardization and its cost benefit will be realized gradually along with the growth of the market.

Key words: retired battery, electric vehicle, battery second use, energy storage