期刊
BATTERIES-BASEL
卷 8, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/batteries8090122
关键词
second life; Lithium-ion battery; battery life cycle; battery assessment; energy storage system; electric vehicle
资金
- European Union [963540, 963580]
This article proposes a battery assessment procedure for determining the best second life application for a battery after its first life in an electric vehicle. The procedure consists of three stages: evaluation of the battery's state, evaluation of technical viability, and economic evaluation. By comparing different battery configurations with the requirements for second life applications, the reader can understand the tradeoffs and practical strategies for implementing second life batteries. An economic evaluation process is also developed to determine the cost and revenue of different battery configurations for various end use applications.
Using batteries after their first life in an Electric Vehicle (EV) represents an opportunity to reduce the environmental impact and increase the economic benefits before recycling the battery. Many different second life applications have been proposed, each with multiple criteria that have to be taken into consideration when deciding the most suitable course of action. In this article, a battery assessment procedure is proposed that consolidates and expands upon the approaches in the literature, and facilitates the decision-making process for a battery after it has reached the end of its first life. The procedure is composed of three stages, including an evaluation of the state of the battery, an evaluation of the technical viability and an economic evaluation. Options for battery configurations are explored (pack direct use, stack of battery packs, module direct use, pack refurbish with modules, pack refurbish with cells). By comparing these configurations with the technical requirements for second life applications, a reader can rapidly understand the tradeoffs and practical strategies for how best to implement second life batteries for their specific application. Lastly, an economic evaluation process is developed to determine the cost of implementing various second life battery configurations and the revenue for different end use applications. An example of the battery assessment procedure is included to demonstrate how it could be carried out.
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