退役动力电池梯次利用研究进展
摘要:现阶段，国家大力扶持新能源汽车产业的发展，出台了一系列的优惠政策。随着电动汽车数量的逐年增加，动力电池也即将面临大规模的退役。为了合理利用资源，同时获得更大的经济效益，退役动力电池梯次利用显得很有必要。该文简述了国内外梯次利用技术的现状，列举了国内外梯次利用项目，介绍了梯次利用过程中的检测、筛选、重组和均衡技术；重点介绍了如何根据电池的电性能进行筛选，强调了保持电池荷电状态一致的重要性；通过对梯次电池应用于充电站、通信基站、光伏电站和用户侧储能等不同储能场景的分析，证明了梯次电池具有良好的经济效益。最后对退役动力电池梯次利用目前仍存在的问题进行了总结探讨。
Abstract：At this stage, the state vigorously supports the development of the new energy automobile industry and has issued a series of preferential policies. As the number of electric vehicles increases year by year, power batteries are also about to face large-scale retirement. In order to adequately use resources and obtain more economic profits, echelon utilization of retired power batteries is necessary. This paper briefly described the current status of cascaded utilization technologies and listed the cascade utilization projects at home and abroad, then introduced the detection, filtration, recombination and equalization technologies in the cascaded utilization process. This paper focused on how to screen based on the electrical performance of the battery, and emphasized the importance of keeping the battery state of charge consistent. Through the analysis of different energy storage scenarios of cascade batteries such as the charging stations, communication base stations, photovoltaic power plants, and user-side energy storage, it proved that the cascaded utilization of decommissioned power batteries has economic value. At the end of this paper, it summarized and discussed the existing problems of cascaded utilization.
标题：退役动力电池梯次利用研究进展
title:Research Progress on Echelon Utilization of Retired Power Batteries
作者：王苏杭, 李建林
authors:WANG Suhang, Li Jianlin
关键词：退役动力电池,梯次,电池筛选,电池均衡,储能,经济性,
keywords:decommissioned power batteries,cascaded utilization,battery screening,battery equalization,energy storage,economic value,
发表日期：2021-05-20
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