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| 1 | Mechanism of intercalation and deintercalation of lithium ions in graphene nanosheets显示文摘Graphene nanosheets (GNSs) were synthesized by reducing exfoliated graphite oxides. Their structure, surface morphology and lithium storage mechanism were characterized and investigated systematically using X-ray diffraction, atomic force microscopy, scanning electron microscopy, charge-discharge tests, cyclic voltammetry and electrochemical impedance spectroscopy. It was found that the GNSs, which were obtained via chemical synthesis, were primarily less than 10 graphene layers. The GNS electrodes, which were fabricated from the reduced GNSs, exhibited an enhanced reversible lithium storage capacity and good cyclic stability when serving as anodes in lithium-ion batteries. Also, the first-cycle irreversible capacities of the system were relatively high, because of the formation of a solid electrolyte interphase film on the surface of the GNS electrode and the spontaneous stacking of GNSs during the first lithiation. The electrochemical impedance spectroscopy results suggest that the solid electrolyte interphase film on the GNS electrode during first lithiation were primarily formed at potentials between 0.95 and 0.7 V. Also, the symmetry factor of the charge transfer was measured to be 0.446. | TIAN LeiLei ZHUANG QuanChao LI Jia SHI YueLi CHEN JianPeng LU Feng SUN ShiGang | 2011 | Chinese Science Bulletin2011，56，30： | 11 |
| 2 | An electrochemical impedance spectroscopic study of the electronic and ionic transport properties of LiCoO_2 cathode显示文摘The storage behavior and process of the first delithiation-lithiation of LiCoO2 cathode were investigated by electrochemical impedance spectroscopy(EIS). The electronic and ionic transport properties of LiCoO2 cathode along with variation of electrode potential were obtained in 1 mol·L?1 LiPF6-EC:DMC:DEC electrolyte solution. It was found that after 9 h storage of the LiCoO2 cathode in electrolyte solu-tions,a new arc appears in the medium frequency range in Nyquist plots of EIS,which increases with increasing the storage time. In the charge/discharge processes,the diameter of the new arc is reversi-bly changed with electrode potential. Such variation coincides well with the electrode potential de-pendence of electronic conductivity of the LiCoO2. Thus this new EIS feature is attributed to the change of electronic conductivity of LixCoO2 during storage of the LiCoO2 cathode in electrolyte solutions,as well as in processes of intercalation-deintercalationtion of lithium ions. It has been revealed that the reversible increase and decrease of the resistance of SEI film in charge-discharge processes can be also ascribed to the variation of electronic conductance of active materials of the LiCoO2 cathode. | ZHUANG QuanChao XU JinMei FAN XiaoYong DONG QuanFeng JIANG YanXia HUANG Ling SUN ShiGang | 2007 | Chinese Science Bulletin2007，52，9： | 5 |
| 3 | Two-and three-electrode impedance spectroscopic studies of graphite electrode in the first lithiation显示文摘The first lithiation of graphite electrode was investigated by electrochemical impedance spectroscopy (EIS) and scanning electron microscope (SEM) in a two-electrode button cell and a three-electrode glass cell. The results demonstrate that the study of the variation of EIS feature of the graphite electrode in the two-electrode button cell with electrode polarization potential decreasing in the first lithiation cannot be used to investigate the formation mechanism of the solid electrolyte interphase (SEI) film. However, the formation and growth process of the SEI film can be acquired by investigating the variation of EIS features of the graphite electrode in the three-electrode glass cell with the decrease of electrode po-larization potential in the first lithiation. Moreover, the results also point out that the SEI film on graph-ite electrode is mainly formed between 1.0 and 0.6 V in the first lithiation. | ZHUANG QuanChao TIAN LeiLei WEI GuoZhen DONG QuanFeng SUN ShiGang | 2009 | Chinese Science Bulletin2009，54，15： | 4 |
| 4 | Studies of the first lithiation of graphite materials by electrochemical impedance spectroscopy显示文摘First lithiation of graphite electrode in 1 mol/L LiPF6-EC:DEC:DMC electrolyte was investi- gated by electrochemical impedance spectroscopy (EIS). The results illustrated that the first arc in the high-frequency range observed in the Nyquist dia- gram appears near 0.9 V in the initial lithiation of graphite electrode, and its diameter increases with the decrease of polarization potential. These EIS features were attributed to the formation and growth of SEI film. Appropriate equivalent circuit was pro- posed to fit the experimental EIS data. The fitting results revealed the process of the formation and growth of SEI film, and evaluated quantitatively the resistance of charge transfer, as well as the capaci- tance of double layer along with the increase of po- larization potentials. | ZHUANG Quanchao CHEN Zuofeng DONG Quanfeng JIANG Yanxia HUANG Ling SUN Shigang | 2006 | Chinese Science Bulletin2006，51，9： | 3 |
| 5 | 显示文摘 | Fan Xiaoyong Zhuang Quanchao Jiang Honghong | 2007 | Acta Physico-Chimica Sinica2007，23，7： | 1 |
| 6 | A novel PEO-based composite solid-state polymer electrolyte with methyl group-functionalized SBA-15 filler for rechargeable lithium batteries显示文摘 | JIANG Yanxia XU Jinmei ZHUANG Quanchao | 2008 | Journal of Solid State Electrochemistry2008，12，4： | 1 |
| 7 | Metal–organic framework-derived Co_(3)O_(4)modified nickel foam-based dendrite-free anode for robust lithium metal batteries显示文摘For several decades,the promise of implementing of lithium(Li)metal anodes for Li batteries has been a'holy grail'for researchers.Herein,we have proposed a facile design of a MOF-derived Co_(3)O_(4)nanoparticles modified nickel foam,i.e.,Co_(3)O_(4)-NF,as a 3D host to achieve a uniform infusion of the molten Li.The molten Li was uniformly absorbed on the Co_(3)O_(4)-NF host only in 10 s due to its high Li lithiophilicity.The obtained Li-Co_(3)O_(4)-NF composite electrode shows high cycling stability in symmetric cells with low voltage hysteresis even at a high current density of 5 mA/cm2.The full cells of Li-Co_(3)O_(4)-NF/LiFePO_(4)can cycle for more than 500 cycles at 2C without obvious capacity decay.SEM after cycling and in situ optical microscope results suggest that the unique 3D host structure of the Li-Co_(3)O_(4)-NF anode plays key roles on suppressing the dendrite growth and decreasing the local current inhomogeneity.We believe this work might provide a new strategy for fabricating dendrite-free Li metal anodes and facilitate practical applications in Li batteries. | Tao Wei Jiahao Lu Pan Zhang Guang Yang Cheng Sun Yanyan Zhou Quanchao Zhuang Yongfu Tang | 2023 | Chinese Chemical Letters2023，34，8： | 0 |
| 8 | Recent Progress and Prospects on Dendrite-free Engineerings for Aqueous Zinc Metal Anodes显示文摘Rechargeable zinc-ion batteries with mild aqueous electrolytes are one of the most promising systems for large-scale energy storage as a result of their inherent safety,low cost,environmental-friendliness,and acceptable energy density.However,zinc metal anodes always suffer from unwanted dendrite growth,leading to low Coulombic efficiency and poor cycle stability and during the repeated plating/stripping processes,which substantially restrict their further development and application.To solve these critical issues,a lot of research works have been dedicated to overcoming the drawbacks associated with zinc metal anodes.In this overview,the working mechanisms and existing issues of the zinc metal anodes are first briefly outlined.Moreover,we look into the ongoing processes of the different strategies for achieving highly stable and dendrite-free zinc metal anodes,including crystal engineering,structural engineering,coating engineering,electrolyte engineering,and separator engineering.Finally,some challenges being faced and prospects in this field are provided,together with guiding significant research directions in the future. | Jiangmin Jiang Zhiwei Li Zhenghui Pan Shijing Wang Yaxin Chen Quanchao Zhuang Zhicheng Ju Xiaogang Zhang | 2023 | Energy & Environmental Materials2023，6，3： | 0 |
| 9 | Preparation and characteriza-tion of a novel composite mi-croporous polymer electrolyte for Li-ion batteries显示文摘A novel composite microporous polymer elec- trolyte composed of poly(vinylidene fluoride-co-hexafluorop- ropylene) (PVdF-HFP) and mesoporous SBA-15 was pre- pared. The composite solid polymer electrolyte (CSPE) ex- hibits ionic conductivity as high as 0.30 mS·cm?1 with a composition of SBA-15︰PVdF-HFP=3︰8 at room tem- perature. Infrared transmission spectroscopic results sug- gested that the mechanism of micropore formation is similar to that of the phase inversion. X-ray diffraction (XRD) results demonstrated that the addition of SBA-15 inhibits the crys- tallization of PVdF-HFP, while the SBA-15 preserves well its ordered mesoporous structure during the course of prepara- tion. The Li/CSPE/MCF of half-cell was assembled, and it showed a good electrochemical and cyclability performance during charge-discharge cycles. | CHEN Zuofeng JIANG Yanxia ZHUANG Quanchao DONG Quanfeng WANG Ye SUN Shigang | 2005 | Chinese Science Bulletin2005，50，14： | 0 |
| 10 | Prestoring lithium into SnO_(2)coated 3D carbon fiber cloth framework as dendrite-free lithium metal anode显示文摘For several decades,the promise of implementing of lithium(Li)metal anodes has been regarded as the'holy grail'for Li-based batteries.Herein,we have proposed a facile design of a carbon fiber cloth(CFC)framework coated with SnO_(2)nanoparticles through a hydrothermal process,which served as a reliable host for prestoring molten Li to produce a CFC@SnO_(2)@Li composite anode.XRD,TEM,HRTEM,XPS and different electrochemical characterizations were carried out.Owing to the synergetic effects of the 3D conductive CFC and the coated lithiophilic SnO_(2)nanoparticles,the designed CFC@SnO_(2)@Li electrodes can buffer the volume changes and reduce the local current density,thus suppress the Li dendrites during cycling.Consequently,the CFC@SnO_(2)electrodes showed a high and stable CE of 98.6%for 1000 cycles at a current density of 1 mA cm^(-2)(1 mAh cm^(-2)).What is more,at a high current density of 5 mA cm^(-2)and a high areal capacity of 5 mAh cm^(-2),the symmetric cell displayed relatively low overpotential and long cycling lifetime of 1600 h.The results confirm its great potential as lithium metal anodes in practical battery applications. | Tao Wei Yanyan Zhou Cheng Sun Lesheng Liu Sijia Wang Mengting Wang Ye Liu Qing Huang Quanchao Zhuang Yongfu Tang | 2024 | Particuology2024，84，1： | 0 |
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