工程科学学报.第44卷，第X期：1-13.2021年X月 Chinese Journal of Engineering,Vol.44,No.X:1-13,X 2021 https://doi.org/10.13374/j.issn2095-9389.2021.08.16.004;http://cje.ustb.edu.cn 高功率锂离子电池研究进展 陈港欣12)，孙现众12,3)区，张熊2，)，王凯2，)，马衍伟2，) 1)中国科学院电工研究所，北京1001902)中国科学院大学工程科学学院，北京1000493)齐鲁中科电工先进电磁驱动技术研究院，济 南250013 区通信作者，E-mail:xzsun@mail.iee.ac.cn 摘要高功率快放型锂离子电池是目前锂离子电池领域研究的重点方向之一.为了获得具有高功率密度的锂离子电池，正 极材料须具有较高的电压和较高的电子与离子导电率，正极材料主要包括高电压钴酸锂、镍锰酸锂和高电压三元材料，负极 材料包括碳系材料、钛基材料和金属氧化物材料，以及为提高首效和降低负极平台而采用的预嵌锂方法，并对锂离子电池电 解液用锂盐、溶剂和添加剂进行了综述.最终总结了功率密度测试方法，并对高功率锂离子电池的研究进行展望 关键词高功率锂离子电池：正极材料：负极材料：电解液：预嵌锂：功率密度 分类号TM912 Progress of high-power lithium-ion batteries CHEN Gang-xin2),SUN Xian-zhong2,ZHANG Xiong2,WANG Kai2),MA Yan-wei22) 1)Key Laboratory of Applied Superconductivity,Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China 2)University of Chinese Academy of Sciences,Beijing 100049,China 3)Institute of Electrical Engineering and Advanced Electromagnetic Drive Technology,Qilu Zhongke,Jinan 250013,China Corresponding author,E-mail:xzsun(@mail.iee.ac.cn ABSTRACT High-power and fast-discharging lithium-ion battery,which can be used in smart power grids,rail transits, electromagnetic launch systems,aerospace systems,and so on,is one of the key research directions in the field of lithium-ion batteries and has attracted increasing attention in recent years.To obtain lithium-ion batteries with a high power density,the cathode materials should possess high voltage and high electronic/ionic conductivity,which can be realized by selecting high-voltage materials and modifying them to improve the voltage and reduce the battery's internal resistance.Currently,the cathode materials of high-power lithium-ion batteries mainly include high-voltage LiCoOz,LiNosMnsO4,and Li(NiCoMn)O2 materials.Meanwhile,the anode materials include carbon-and Ti-based materials and metal oxides.This paper reviews the research on the modification of these materials,such as element doping and surface coating,which have gained considerable attention nowadays,as well as some new types of anode materials that exhibit excellent electrochemical properties.In terms of the negative electrode,the prelithiation process is one of the effective means to improve the power performance of a lithium-ion battery.This process's significance is to compensate the consumption of Li'and reduce the potential of the negative electrode to the working range for improving the platform voltage of the battery and improving the power density and energy density.This paper summarizes several commonly used prelithiation methods of the lithium-ion battery.Finally,the lithium salts,solvents,and additives for the electrolytes of lithium-ion batteries are introduced on the basis of their classification,properties,and performances.Several new types of lithium salts and additives are mentioned herein,such as lithium bis(fluorosulfonyl)imide,lithium bis(oxalate)borate,and tetramethylene sulfone.Furthermore,this paper summarizes several common power density test methods of lithium-ion batteries and prospects the research of high-power lithium-ion batteries.As a matter 收稿日期：2021-08-16 基金项目：国家自然科学基金资助项目(52077207,51822706.51777200)：北京市自然科学基金资助项目(JQ19012)高功率锂离子电池研究进展 陈港欣1,2)，孙现众1,2,3) 苣，张    熊1,2,3)，王    凯1,2,3)，马衍伟1,2,3) 1) 中国科学院电工研究所，北京 100190    2) 中国科学院大学工程科学学院，北京 100049    3) 齐鲁中科电工先进电磁驱动技术研究院，济 南 250013 苣通信作者， E-mail: xzsun@mail.iee.ac.cn 摘    要    高功率快放型锂离子电池是目前锂离子电池领域研究的重点方向之一. 为了获得具有高功率密度的锂离子电池，正 极材料须具有较高的电压和较高的电子与离子导电率，正极材料主要包括高电压钴酸锂、镍锰酸锂和高电压三元材料，负极 材料包括碳系材料、钛基材料和金属氧化物材料，以及为提高首效和降低负极平台而采用的预嵌锂方法，并对锂离子电池电 解液用锂盐、溶剂和添加剂进行了综述. 最终总结了功率密度测试方法，并对高功率锂离子电池的研究进行展望. 关键词    高功率锂离子电池；正极材料；负极材料；电解液；预嵌锂；功率密度 分类号    TM912 Progress of high-power lithium-ion batteries CHEN Gang-xin1,2) ，SUN Xian-zhong1,2,3) 苣 ，ZHANG Xiong1,2,3) ，WANG Kai1,2,3) ，MA Yan-wei1,2,3) 1) Key Laboratory of Applied Superconductivity, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China 2) University of Chinese Academy of Sciences, Beijing 100049, China 3) Institute of Electrical Engineering and Advanced Electromagnetic Drive Technology, Qilu Zhongke, Jinan 250013, China 苣 Corresponding author, E-mail: xzsun@mail.iee.ac.cn ABSTRACT    High-power  and  fast-discharging  lithium-ion  battery,  which  can  be  used  in  smart  power  grids,  rail  transits, electromagnetic launch systems, aerospace systems, and so on, is one of the key research directions in the field of lithium-ion batteries and has attracted increasing attention in recent years. To obtain lithium-ion batteries with a high power density, the cathode materials should  possess  high  voltage  and  high  electronic/ionic  conductivity,  which  can  be  realized  by  selecting  high-voltage  materials  and modifying  them  to  improve  the  voltage  and  reduce  the  battery ’s  internal  resistance.  Currently,  the  cathode  materials  of  high-power lithium-ion  batteries  mainly  include  high-voltage  LiCoO2 ,  LiNi0.5Mn1.5O4 ,  and  Li(NiCoMn)O2 materials.  Meanwhile,  the  anode materials  include  carbon-  and  Ti-based  materials  and  metal  oxides.  This  paper  reviews  the  research  on  the  modification  of  these materials, such as element doping and surface coating, which have gained considerable attention nowadays, as well as some new types of anode materials that exhibit excellent electrochemical properties. In terms of the negative electrode, the prelithiation process is one of the effective  means  to  improve  the  power  performance  of  a  lithium-ion  battery.  This  process ’s  significance  is  to  compensate  the consumption of Li+ and reduce the potential of the negative electrode to the working range for improving the platform voltage of the battery and improving the power density and energy density. This paper summarizes several commonly used prelithiation methods of the lithium-ion battery. Finally, the lithium salts, solvents, and additives for the electrolytes of lithium-ion batteries are introduced on the basis of their classification, properties, and performances. Several new types of lithium salts and additives are mentioned herein, such as lithium  bis(fluorosulfonyl)imide,  lithium  bis(oxalate)borate,  and  tetramethylene  sulfone.  Furthermore,  this  paper  summarizes  several common power density test methods of lithium-ion batteries and prospects the research of high-power lithium-ion batteries. As a matter 收稿日期: 2021−08−16 基金项目: 国家自然科学基金资助项目（52077207，51822706，51777200）；北京市自然科学基金资助项目（JQ19012） 工程科学学报，第 44 卷，第 X 期：1−13，2021 年 X 月 Chinese Journal of Engineering, Vol. 44, No. X: 1−13, X 2021 https://doi.org/10.13374/j.issn2095-9389.2021.08.16.004; http://cje.ustb.edu.cn