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Surface LiMn1.4Ni0.5Mo0.1O4 Coating and Bulk Mo Doping of Li-Rich Mn-Based Li1.2Mn0.54Ni0.13Co0.13O2 Cathode with Enhanced Electrochemical Performance for Lithium-Ion Batteries

文献类型：期刊论文

作者Ji, Xueqian1,2; Xu, Yuxing1,3; Feng, Hailan1,3; Wang, Pengfei1,3; Zhou, Yuncheng1,2; Song, Jiechen1,2; Xia, Qing1,3,4; Tan, Qiangqiang1,3,5
刊名ACS APPLIED MATERIALS & INTERFACES
出版日期2021-10-13
卷号13期号:40页码:47659-47670
关键词lithium-ion batteries cathode Li-rich Mn-based oxides surface modification excellent cyclability
ISSN号1944-8244
DOI10.1021/acsami.1c14682
英文摘要To improve the initial Coulombic efficiency, cycling stability, and rate performance of the Li-rich Mn-based Li1.2Mn0.54Ni0.13Co0.13O2 cathode, the combination of LiMn1.4Ni0.5Mo0.1O4 coating with Mo doping has been successfully carried out by the sol-gel method and subsequent dip-dry process. This strategy buffers the electrodes from the corrosion of electrolyte and enhances the lattice parameter, which could inhibit the oxygen release and maintain the structural stability, thus improving the cycle stability and rate capability. After LiMn1.4Ni0.5Mo0.1O4 modification, the initial discharge capacity reaches 272.4 mAh g(-1) with a corresponding initial Coulombic efficiency (ICE) of 84.2% at 0.1C (1C = 250 mAh g(-1)), far higher than those (221.5 mAh g(-1) and 68.9%) of the pristine sample. Besides, the capacity retention of the coated sample is enhanced by up to 66.8% after 200 cycles at 0.1C. Especially, the rate capability of the coated sample is 95.2 mAh g(-1) at 5C. XRD, SEM, TEM, XPS, and Raman spectroscopy are adopted to characterize the morphologies and structures of the samples. This coating strategy has been demonstrated to be an effective approach to construct high-performance energy storage devices.
WOS关键词HIGH-CAPACITY ; REDOX COUPLES ; OXYGEN LOSS ; ELECTRODES ; EVOLUTION
资助项目National Natural Science Foundation of China[51902310] ; Natural Science Foundation of Hebei Province[E2019103017] ; Natural Science Foundation of Hebei Province[E2019103018] ; Key R&D Program of Hebei Province[19214407D] ; Open Research Fund of State Key Laboratory of Multiphase Complex Systems[MPCS2021-D-13] ; Joint Funds of Innovation Academy for Green Manufacture of Chinese Academy of Sciences[IAGM2020C02]
WOS研究方向Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000709458200032
出版者AMER CHEMICAL SOC
资助机构National Natural Science Foundation of China ; Natural Science Foundation of Hebei Province ; Key R&D Program of Hebei Province ; Open Research Fund of State Key Laboratory of Multiphase Complex Systems ; Joint Funds of Innovation Academy for Green Manufacture of Chinese Academy of Sciences
源URL[http://ir.ipe.ac.cn/handle/122111/50762]  
专题中国科学院过程工程研究所
通讯作者Xia, Qing; Tan, Qiangqiang
作者单位1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
3.Hebei Technol Innovat Ctr Adv Energy Mat, Langfang 065001, Peoples R China
4.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
5.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Ji, Xueqian,Xu, Yuxing,Feng, Hailan,et al. Surface LiMn1.4Ni0.5Mo0.1O4 Coating and Bulk Mo Doping of Li-Rich Mn-Based Li1.2Mn0.54Ni0.13Co0.13O2 Cathode with Enhanced Electrochemical Performance for Lithium-Ion Batteries[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13(40):47659-47670.
APA Ji, Xueqian.,Xu, Yuxing.,Feng, Hailan.,Wang, Pengfei.,Zhou, Yuncheng.,...&Tan, Qiangqiang.(2021).Surface LiMn1.4Ni0.5Mo0.1O4 Coating and Bulk Mo Doping of Li-Rich Mn-Based Li1.2Mn0.54Ni0.13Co0.13O2 Cathode with Enhanced Electrochemical Performance for Lithium-Ion Batteries.ACS APPLIED MATERIALS & INTERFACES,13(40),47659-47670.
MLA Ji, Xueqian,et al."Surface LiMn1.4Ni0.5Mo0.1O4 Coating and Bulk Mo Doping of Li-Rich Mn-Based Li1.2Mn0.54Ni0.13Co0.13O2 Cathode with Enhanced Electrochemical Performance for Lithium-Ion Batteries".ACS APPLIED MATERIALS & INTERFACES 13.40(2021):47659-47670.

入库方式： OAI收割

来源：过程工程研究所

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