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| 1 | Hollow-in-hollow carbon spheres with hollow foam-like cores for lithium-sulfur batteries显示文摘 | Jun Zang Taihua An Yajie Dong Xiaoliang Fang Mingsen Zheng Quanfeng Dong Nanfeng Zheng | 2015 | Nano Research2015,8,8: | 15 |
| 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 | Structure characterization and antioxidant activity of a novel polysaccharide isolated from Ginkgo biloba显示文摘 | Fei Yuan Rongmin Yu Yin Yin Jianru Shen Quanfeng Dong Ling Zhong Liyan Song | 2010 | International Journal of Biological Macromolecules2010,,4: | 1 |
| 6 | The preparation of a novel anion-exchange membraneand its application in all-vanadium redox batteries显示文摘 | Zhang Qi Dong Quanfeng Zheng Senming | 2006 | J Membr Sci2006,421,1: | 1 |
| 7 | The preparation of a novel anion-exchange membrane and its application in all-vanadium redox batteries显示文摘 | Zhang Qi Dong Quanfeng Zheng Mingsen Tian Zhaowu | 2012 | Journal of Membrane Science2012,4,: | 1 |
| 8 | Charge stora- ge effects in alkaline cathodes containing fluorinated graphite 显示文摘 | Stuart Licht Susanta Ghosh Dong Quanfeng | 2001 | J Electrochem Soc2001,148,10: | 1 |
| 9 | Enhancing sulfur cathode process via a functionalized complex molecule显示文摘Lithium-sulfur batteries are regarded as promising next-generation energy storage batteries for their ultra-high theoretical energy density.However,the complex sulfur electrode process with sluggish sulfur conversion reactions is a critical issue for lithiumsulfur batteries,in which catalytic interfacial reactions and accelerated lithium-ion diffusion are the key factors.Our previous work has shown that implanting functional molecules with multiple redox properties in the electrode can break through the conventional diffusion layer constraints and achieve forced convection.In this work,a functionalized complex molecule,methylene blue anthraquinone-2-sulfonate(MB-AQ),with multiple redox activities as well as abundant active sites,was synthesized and introduced into the sulfur cathode.In addition to accelerating the transport of lithium ions by reversible inhaling and exhaling lithium ions,the MB-AQ can combine polysulfides by its active sites to accelerate sulfur conversion reactions.Benefiting from two functions of accelerating ion diffusion and catalyzing interfacial reactions,MB-AQ/reduced graphene oxide(rGO)/S cathode can achieve high initial capacities of 884 and 674 mAh·g^(−1)with stable cycling of 700 and 1,000 times at 1 and 4 C,respectively.It is worth mentioning that the capacity of 462 mAh·g^(−1)can be achieved even at a high current density of 6 C.This work provides a new approach to enhancing the sulfur cathode process. | Qingyi Zheng Xiaoxiang Fan Guoqing Liu Qing Hou Jingmin Fan Mingsen Zheng Quanfeng Dong | 2023 | Nano Research2023,16,6: | 0 |
| 10 | 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 |
| 11 | To make the dead lithium reusable显示文摘Lithium metal anodes have received tremendous attention in recent years and are considered as the most promising anode material for the next-generation high-energy-density batteries[1].However,the commercial adoption of such anodes is severely hindered by poor electrochemical reversibility and insufficient cycle-life[2]. | Xiaodong Lin Quanfeng Dong | 2021 | Science China Chemistry2021,64,8: | 0 |
| 12 | A robust interphase via in-situ pre-reconfiguring lithium anode surface for long-term lithium-oxygen batteries显示文摘Lithium-oxygen(Li-O) battery is considered as one of the most promising alternatives because of its ultrahigh theoretical energy density. However, their cycling stability is severely restricted by the uncontrollable dendrite growth and serious oxygen corrosion issue on Li surface. Herein, a sulfur-modified Li surface can be successfully constructed via chemical reaction of guanylthiourea(GTU) molecule on Li,which can induce the selectively fast decomposition of lithium bis(trifluoromethanesulfonyl)imide(LiTFSI) to form a smooth and stable inorganics-rich solid-electrolyte interphase(IR-SEI) during the subsequent electrochemical process. Such an IR-SEI cannot only offer a highly reversible and stable Li plating/stripping chemistry with dendrite-free property(10 mA cm^(-2)-10 mAh cm^(-2), > 0.5 years;3 mA cm^(-2)-3 m Ah cm^(-2), > 1 year) but also endows the Li metal an anti-oxygen corrosion function, thereby significantly improving the cycling stability of Li-Obatteries. This work provides a new idea for constructing functional solid-electrolyte interphase(SEI) to achieve highly stable Li metal anode. | Pan Xu Xiaodong Lin Zongqiang Sun Kaixuan Li Wenjie Dou Qing Hou Zhiyou Zhou Jiawei Yan Mingsen Zheng Ruming Yuan Quanfeng Dong | 2022 | Journal of Energy Chemistry2022,31,9: | 0 |
| 13 | N-doped carbon nanocube with zinc oxide sodiophilic sites enables a superior sodium metal anode显示文摘The metallic Na has been regarded as the most promising anode for next-generation sodium metal batteries(SMBs)owing to its high theoretical specific capacity,low redox potential,and low cost.The practical applications of Na metal,however,have still been severely hindered by the uncontrolled sodium dendrites growth during Na deposition and stripping processes,which leads to low Coulombic efficiency and poor cycling stability.In this study,sub-nano zinc oxide(ZnO)uniformly dispersed in threedimensional(3D)porous nitrogen-doped(N-doped)carbon nanocube(ZnO@NC)was acquired as a stable host for dendrite-free Na metal anode.Benefiting from the in-situ electrochemically formed sodiophilic nucleation site(NaZn13 alloy)and the enriched pore structure,rapid and uniform sodium deposition behavior can be performed.As expected,the ZnO@NC electrode delivers impressive electrochemical performance,an ultra-high areal capacity of 20 mAh·cm−2 in the half-cell can be maintained for 2,000 h.In the symmetrical-cell,it can also exhibit up to 3,000 h at 3 mA·cm−2 and 3 mAh·cm−2 with low polarization potential.Furthermore,in the full-cell that matches with Prussian blue(PB)cathode,the Na@ZnO@NC anode performs the outstanding long-cycling and rate performance.Therefore,this work provides an effective strategy to inhibit the growth of Na dendrites for the development of high-safety and long-cycling SMBs. | Yijuan Li Pan Xu Hongbin Ni Jirong Mou Tangchao Xie Hong Xiao Hengji Zhu Quanfeng Dong Shaoming Huang | 2023 | Nano Research2023,16,1: | 0 |