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12篇 您的检索式:作者名="Gaoping Cao"
    题名 作者 年代 出处 被引量
1Laterally Confined Graphene Nanosheets and Graphene/SnO_(2) Composites as High-Rate Anode Materials for Lithium-Ion Batteries显示文摘High-rate anode materials for lithium-ion batteries are desirable for applications that require high power density.We demonstrate the advantageous rate capability of few-layered graphene nanosheets,with widths of 100-200 nm,over micro-scale graphene nanosheets.Possible reasons for the better performance of the former include their smaller size and better conductivity than the latter.Combination of SnO_(2)nanoparticles with graphene was used to further improve the gravimetric capacities of the electrode at high charge-discharge rates.Furthermore,the volumetric capacity of the composites was substantially enhanced compared to pristine graphene due to the higher density of the composites.Zhiyong Wang Hao Zhang Nan Li Zujin Shi Zhennan Gu Gaoping Cao 2010Nano Research2010,3,10:9
2A scalable bio-inspired polydopamine-Cu ion interfacial layer for high-performance lithium metal anode显示文摘The growth of Li dendrites and the instability of the solid electrolyte in terphase(SEI)layer during plating/stripping has hin dered the practical applicati on of high-energy-density batteries based on a lithium metal anode.Building a stable interfacial layer is effective in preventing lithium corrosiion by the electrolyte and controlling the deposition of lithium metal.Here,we present a robust polydopamine-Cu ion(PDA-Cu^2+)coati ng layer formed by the aggregation of nanoparticles and Cu ions,which can be obtained by a subtle immersion strategy.We demonstrate that the PDA-Cu^2+ protective layer,with a unique structure comprising nanoparticles,can regulate and guide Li metal deposition,and together with Cu ions,forms a lubricating surface to facilitate uniform Li ion diffusion and induce stable SEI layer formation.Li anodes with this PDA-Cu^2+layer modification ultimately achieve higher Coulombic efficiencies,which are consistently stable for over 650 cycles at 0.5 mA·cm^-2 without Li dendrites.The introduced PDA-Cu^2+ coating can adhere to any material of any shape;addition ally,the operation can be realized on a large scale because of its simplicity.These merits provide a promising approach for developing stable and safe lithium metal batteries.Qianqian Meng Huimin Zhang Yue Liu Shaobo Huang Tianzhu Zhou Xiaofei Yang Biyan Wang Wenfeng Zhang Hai Ming Yu Xiang Meng Li Gaoping Cao Yaqin Huang Li-zhen Fan Hao Zhang Yuepeng Guan 2019Nano Research2019,12,12:2
3Insights for understanding multiscale degradation of LiFePO_(4) cathodes显示文摘Lithium-ion batteries(LIBs)based on olivine LiFePO_(4)(LFP)offer long cycle/calendar life and good safety,making them one of the dominant batteries in energy storage stations and electric vehicles,especially in China.Yet scientists have a weak understanding of LFP cathode degradation,which restricts the further development of LFP materials and batteries.Here,we critically review reports on LFP cathode degradation with respect to different electric parameters(including C-rates,storage,and long cycling),mechanical stresses,and thermal fields.The detailed chemical and physical aspects of degradation mechanisms at various scales(i.e.,from atomic to devices)and their causes are comprehensively summarized,and discussions of related concerns are provided in each section.We close with a systematic overview of LFP degradation research and mediation strategies,suggesting future directions for developing robust,safe LFP batteries with long cycle life.Li Wang Jingyi Qiu Xiaodan Wang Long Chen Gaoping Cao Jianlong Wang Hao Zhang Xiangming He 2022eScience2022,2,2:1
4Sustainable nitrogen- doped porous carbon with high surface areas prepared from gelatin for supercapacitors显示文摘Xu Bin Hou Shanshan Cao Gaoping 2012Journal of Materials Chemistry2012,22,19:1
5Correlation of capacitance with the pore structure for nanoporous glassy carbon electrodes显示文摘Yuehua Wen Gaoping Cao Jie Cheng 2005J Electrochem Soc2005,152,9:1
6Competitive effect of KOH activation on the electrochemical performances of carbon nanotubes for EDLC: Balance between porosity and conductivity显示文摘Bin Xu Feng Wu Yuefeng Su Gaoping Cao Shi Chen Zhiming Zhou Yusheng Yang 2008Electrochimica Acta2008,,26:1
7FePO 4 nanoparticles embedded in a large mesoporous carbon matrix as a high-capacity and high-rate cathode for lithium-ion batteries显示文摘Lian Chen Ping Wu Kongwei Xie Jianping Li Bin Xu Gaoping Cao Yu Chen Yawen Tang Yiming Zhou Tianhong Lu Yusheng Yang 2013Electrochimica Acta2013,,:1
8Nano-CaCO 3 templated mesoporous carbon as anode material for Li-ion batteries显示文摘Bin Xu Lu Shi Xianwei Guo Lu Peng Zhaoxiang Wang Shi Chen Gaoping Cao Feng Wu Yusheng Yang 2011Electrochimica Acta2011,,18:1
9Easy synthesis of mesoporous carbon using nano-CaCO 3 as template显示文摘Bin Xu Lu Peng Guoqing Wang Gaoping Cao Feng Wu 2010Carbon2010,,8:1
10Characterization of sol-gel-derived NiOx xerogels as supercapacitors显示文摘Cheng Jie Cao Gaoping Yang Yusheng 2006J Power Sources2006,159,:1
11In-situ construction of hybrid artificial SEI with fluorinated siloxane to enable dendrite-free Li metal anodes显示文摘Lithium(Li)metal anode holds great promise for high-energy-density rechargeable batteries.However,it suffers from the Li dendrites growth and uncontrollable side reactions with electrolyte due to the unstable solid electrolyte interphase(SEI)layer.Herein,we propose a facile strategy for the in-situ fabricate of organic-inorganic composite artificial SEI layers on Li surfaces,which consist of organic fluorinated siloxane and inorganic LiF-rich phases.The hybrid artificial SEI endows high mechanical strength(13.1 GPa)and Liþtransfer number(0.62).Such robust SEI protective layers can not only guide uniform nucleation and deposition of Li metal by facilitating uniform Li-ion distribution,but also prevent unfavourable side reactions.Accordingly,the protected metallic lithium anode(PMTFPS-Li)anode enables stable Li plating/stripping performance in symmetric cells for more than 300 h at 4 mA$h/cm^(2)under a high areal capacity of 4 mA/cm^(2).Moreover,the PMTFPS-Li/S cells could maintain more than 300 stable cycles at 0.5C and the PMTFPS-Li/LFP cells present excellent cycling performance(400 cycles at 1C)and enhanced rate capability(110.4 mA$h/g at 3 C).This work will inspire the design of artificial SEI on Li anodes for advanced Li metal batteries.Lei Wei Zhaoqing Jin Jianhao Lu Yang Guo Zilong Wang Gaoping Cao Jingyi Qiu Anbang Wang Weikun Wang 2023Journal of Materiomics2023,9,2:0
12Hard-carbon hybrid Li-ion/metal anode enabled by preferred mesoporous uniform lithium growth mechanism显示文摘To achieve high energy density in lithium batteries,the construction of lithium-ion/metal hybrid anodes is a promising strategy.In particular,because of the anisotropy of graphite,hybrid anode formed by graphite/Li metal has low transport kinetics and is easy to causes the growth of lithium dendrites and accumulation of dead Li,which seriously affects the cycle life of batteries and even causes safety problems.Here,by comparing graphite with two types of hard carbon,it was found that hybrid anode formed by hard carbon and lithium metal,possessing more disordered mesoporous structure and lithophilic groups,presents better performance.Results indicate that the mesoporous structure provides abundant active site and storage space for dead lithium.With the synergistic effect of this structure and lithophilic functional groups(–COOH),the reversibility of hard carbon/lithium metal hybrid anode is maintained,promoting uniform deposition of lithium metal and alleviating formation of lithium dendrites.The hybrid anode maintains a 99.5%Coulombic efficiency(CE)after 260 cycles at a specific capacity of 500 m Ah/g.This work provides new insights into the hybrid anodes formed by carbon-based materials and lithium metal with high specific energy and fast charging ability.Fang Yan Yan Liu Yuan Li Yan Wang Zicen Deng Meng Li Zhenwei Zhu Aohan Zhou Ting Li Jingyi Qiu Gaoping Cao Shaobo Huang Biyan Wang Hao Zhang 2024Journal of Energy Chemistry2024,88,1:0
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