新能源汽车储能系统快速充电策略研究综述

Review of Research on Fast Charging Strategies for New Energy Vehicle Energy Storage Systems

电动汽车在近十年得到大力发展与推广,但续航里程一直限制着电动汽车的进一步发展。车载储能系统快速充电技术能够有效缓解现阶段电动汽车用户续航里程焦虑,同时提高车辆安全性。电动汽车快速充电技术包括基于经验的充电策略和基于优化的充电策略。本文首先总结了各种传统充电方法的优点和缺点,其次根据应用场景优化目标的不同,归纳了不同优化目标的快充策略的应用,此外总结了电池内部的电极材料、电解质和电极/电解质界面(EEI)对快充性能的影响,并归纳了不同材料的改良措施,并对该领域未来发展方向进行了展望。

Electric vehicles have been vigorously developed and promoted in the past decade,but the range has been limiting the further development of electric vehicles.The fast charging technology of on-board energy storage system is an effective and easy-to-implement way to alleviate the short range of electric vehicles as well as to improve the safety of the whole vehicle at the present stage,and the current fast charging technology of electric vehicles includes empirical charging strategy based on experience and optimization-based charging strategy.Firstly the advantages and shortcomings of the various traditional charging methods are summarized,and then according to the application scenarios of the optimization objective,the different optimization objectives for the application of fast charging strategies are summarized.In addition,the influence of electrode materials,electrolyte and electrode/electrolyte interface(EEI)inside the battery on the fast charging performance is summarized,and the improvement measures of different materials are summarized,and the future development direction of this field is prospected.