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From non-carbon host toward carbon-free lithium-sulfur batteries

Nano Research 2024年第3期17卷 1337-1365页

作者： Yanqi Feng Hui Liu qiongqiong lu School of Materials Science and Engineering Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic MaterialsShaanxi University of Science and TechnologyXi’an 710021China Institute of Materials Henan Key Laboratory of Advanced Conductor MaterialsHenan Academy of SciencesZhengzhou 450046China Leibniz Institute for Solid State and Materials Research(IFW)Dresden e.V. Helmholtzstraβe 2001069 DresdenGermany School of Materials&Environment Engineering Chengdu Technological UniversityChengdu 611730China

Lithium-sulfur(Li-S)batteries with advantages of high energy densities(2600 Wh·kg^(-1)/2800 Wh·L^(-1))and sulfur abundance are regarded as promising candidates for next-generation high-energy ***,the conventional carbon host used in sulfur cathodes suffers from poor chemical adsorption towards Li-polysulfides(LPS)in liquid electrolyte and sluggish redox kinetics,leading to low capacity and rate ***,carbon host used in Li metal anode with the intrinsic property of poor lithiophilicity and high Li-nucleation barrier gives rise to uncontrollable dendrite growth and further battery ***,non-carbon hosts with chemical adsorption toward LPS and catalytic activity for accelerating LPS redox conversion as well as lithiophilic property for guiding uniform Li deposition are proposed and demonstrated a high efficiency in both sulfur cathodes and Li metal *** this review,the principle and challenges of Li-S batteries are first presented,then recent work using non-carbon hosts in Li-S batteries is summarized comprehensively,and the mechanism of non-carbon host in improving sulfur utilization and stabilizing Li metal anode is discussed in ***,remaining challenges and outlook on the implementation of non-carbon host for practical carbon-free Li-S batteries are also provided.

关键词： sulfur cathode Li metal anode polysulfides adsorption catalytic effect Li dendrite carbon-free lithium-sulfur batteries

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Enlarged interlayer of separator coating enabling high-performance lithiumsulfur batteries

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Frontiers of Chemical Science and Engineering 2024年第2期18卷 103-112页

作者： Yanqi Feng Hui Liu Xiaoting Liu qiongqiong lu School of Materials&Environment Engineering Chengdu Technological UniversityChengdu 611730China School of Materials Science and Engineering Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic MaterialsShaanxi University of Science and TechnologyXi’an 710021China Green Catalysis Center and College of ChemistryZhengzhou UniversityZhengzhou 450001China Institute of Materials Henan Key Laboratory of Advanced Conductor MaterialsHenan Academy of SciencesZhengzhou 450046China Leibniz Institute for Solid State and Materials Research(IFW) Dresden e.V.Dresden 01069Germany

Lithiumsulfur batteries have been intensively studied due to their high theoretical energy density and abundant sulfur resources. However, their commercial application is hindered by the low redox kinetics and high sulfur losses. In principle, in the design of cathodes and separators, the adsorption toward lithium-polysulfides should be enhanced and the conversion of soluble high-order lithium-polysulfides should be catalyzed. Herein, a KV_(3)O_(8)·0.75H_(2)O separator is designed as an effective lithium-polysulfides mediator in lithiumsulfur batteries. The intercalated K+ would enlarge the interlayer spacing of vanadium oxides, preventing the collapse of the layer structure and improving the electrical/ion conductivity of the interface. Moreover, the KV_(3)O_(8)·0.75H_(2)O modified separator possess a prior adsorption and high redox kinetics toward lithium-polysulfides due to the enhanced diffusion kinetics, which guarantees the high-rate capability and efficient utilization of sulfur. As a result, lithiumsulfur batteries exhibit a high capacity of 1362 mAh·g^(-1) and a long lifespan with a low capacity loss of 0.073% per cycle. This work may provide an alternative way to establish a functional separator to balance the adsorption and conversion of polysulfides during the redox back and forth.

关键词： lithium kinetics adsorption

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High ionic conductive protection layer on Zn metal anode for enhanced aqueous zinc-ion batteries

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Chinese Chemical Letters 2023年第6期34卷 563-566页

作者： Xianyu Liu qiongqiong lu Aikai Yang Yitai Qian School of Chemical Engineering Lanzhou City UniversityLanzhou 730070China Leibniz Institute for Solid State and Materials Research(IFW)Dresden e.V. Helmholtzstraβe 2001069 DresdenGermany Materials Synthesis and Processing(IEK-1) Institute of Energy and Climate ResearchForschungszentrum Jülich GmbH52425JülichGermany Hefei National Laboratory for Physical Science at the Microscale Department of Applied ChemistryUniversity of Science and Technology of ChinaHefei 230026China

Aqueous zinc-ion batteries(ZIBs)has been regarded as a promising energy storage system for large-scale application due to the advantages of low cost and high ***,the growth of Zn dendrite,hydrogen evolution and passivation issues induce the poor electrochemical performance of ***,a Na_(3)Zr_(2)Si_(2)PO_(12)(NZSP)protection layer with high ionic conductivity of 2.94 m S/cm on Zn metal anode was fabricated by drop casting *** protection layer prevents Zn dendrites formation,hydrogen evolution as well as passivation,and facilitates a fast Zn~(2+)*** a result,the symmetric cells based on NZSP-coated Zn show a stable cycling over 1360 h at 0.5 m A/cm^(2)with 0.5 m Ah/cm^(2) and 1000 h even at a high current density of 5 m A/cm^(2) with 2 m Ah/cm^(2).Moreover,the full cells combined with V_(2)O_(5)-based cathode displays high capacities and high rate *** work offers a facile and effective approach to stabilizing Zn metal anode for enhanced ZIBs.

关键词： Na_(3)Zr_(2)Si_(2)PO_(12) High ionic conductivity Drop casting Surface coating Zinc metal anode Aqueous zinc-ion batteries

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Mixed phase sodium manganese oxide as cathode for enhanced aqueous zinc-ion storage

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Chinese Journal of Chemical Engineering 2020年第8期28卷 2214-2220页

作者： Xinyu Wang Xinghua Qin qiongqiong lu Mingming Han Ahmad Omar Daria Mikhailova Institute of Materials and Technology Dalian Maritime UniversityDalian 116026China Leibniz Institute for Solid State and Materials Research(IFW)Dresden e.V. Helmholtzstraße 2001069 DresdenGermany School of Materials Science and Engineering Central South UniversityChangsha 410083China

Aqueous zinc-ion batteries have been regarded as a promising alternative to large-scale energy storage, due to associated low-cost, improved safety and environmental friendliness. However, a high-performance cathode material for both rate capability and specific capacity is still a challenge. One kind of the more promising candidates are sodium manganese oxide(NMO) materials, although they suffer from individual issues and need to be further improved. Herein, we present a novel mixed phase NMO material composed of nearly equal amounts of Na(0.55)Mn2O4 and Na(0.7)MnO(2.05). The structured configuration with particle size of 200–500 nm is found to be beneficial towards improving the ion diffusion rate during the charge/discharge process. Compared with Na(0.7)MnO(2.05) and Na(0.55)Mn2O4, the mixed phase NMO demonstrates an enhanced rate capability and excellent long-term cycling stability with a capacity retention of 83% after 800 cycles. More importantly, the system also delivers an impressive energy density and power density, as 378 W·h·kg^-1 at 68.7 W·kg^-1, or 172 W·h·kg^-1 at 1705 W·kg^-1. The superior electrochemical performance is ascribed to the fast Zn^2+ diffusion rate because of a large ratio of capacitive contribution(63.9% at 0.9 m V·s^-1). Thus, the mixed phase route provides a novel strategy to enhance electrochemical performance, enabling mixed phase NMO as very promising material towards large-scale energy-storage applications.

关键词： Aqueous zinc-ion battery Sodium manganese oxide Mixed phase High energy density

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Vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline coating for high performance zinc-ion batteries

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Frontiers of Chemical Science and Engineering 2023年第9期17卷 1244-1253页

作者： Lin Zhang Xinghua Qin Lang Wang Zifang Zhao Liwei Mi qiongqiong lu Center for Advanced Materials Research Zhongyuan University of TechnologyZhengzhou450007China Institute of Materials and Technology Dalian Maritime UniversityDalian116026China School of Chemistry and Chemical Engineering Henan Institute of Science and TechnologyXinxiang453000China Institute of Materials Henan Academy of SciencesZhengzhou450046China Leibniz Institute for Solid State and Materials Research(IFW)Dresden E.V. Dresden01069Germany

Vanadium oxides as cathode for zinc-ion batteries have attracted much attention because of their high theoretical capacity,flexible layered structure and abundant ***,cathodes are susceptible to the collapse of their layered structure and the dissolution of vanadium after repeated long cycles,which worsen their capacities and cycling ***,a synergistic engineering of calcium-ion intercalation and polyaniline coating was developed to achieve the superior electrochemical performance of vanadium pentoxide for zinc-ion *** pre-intercalation of calcium-ion between vanadium pentoxide layers as pillars increase the crystal structure’s stability,while the polyaniline coating on the cathodes improves the conductivity and inhibits the dissolution of *** synergistic engineering enables that the battery system based-on the polyaniline coated calcium vanadate cathode to deliver a high capacity of 406.4 mAh·g^(−1)at 1 A·g^(−1),an ultralong cycle life over 6000 cycles at 10 A·g^(−1)with 93%capacity retention and high-rate *** vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline coating was verified to effectively improve the electrochemical performance of zinc-ion batteries.

关键词： zinc-ion battery CaV8O_(2)0 polyaniline coating synergistic engineering high capacity long durability

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Denitrification Potential of Marsh Soils in Two Natural Saline-alkaline Wetlands

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Chinese Geographical Science 2014年第3期24卷 279-286页

作者： BAI Junhong ZHAO Qingqing WANG Junjing lu qiongqiong YE Xiaofei GAO Zhaoqin State Key Laboratory of Water Environment Simulation School of EnvironmentBeijing Normal University

Little information is available on denitrification potential of marsh soils in natural saline-alkaline wetlands. The denitrification potentials of an open wetland in the floodplain(Erbaifangzi wetland) and a closed wetland(Fulaowenpao wetland) in backwater areas in Jilin Province of Northeast China were monitored by an anaerobic incubation at 30℃ for 25 days. Our results showed that the relative denitrification index(RDI) increased gradually with incubation time, and showed a rapid increase in the first 5 days of incubation. The RDI values declined quickly from surface soils to subsurface soils and then kept a small change in deeper soils along soil profiles over the incubation time. Denitrification proceeded much faster in the top 20 cm soils of open wetland than in the closed wetland, whereas no significant differences in RDI values were observed in deeper soils between both wetlands. The RDIs were significantly negatively correlated with bulk density and sand content, while a significantly positive correlation with clay content, soil organic matter, total nitrogen and phosphorous. The maximum net NO–3-N loss through denitrification in 1 m depth were higher in the open wetland than the closed wetland with higher soil pH values. Future research should be focused on understanding the influencing mechanisms of soil alkalinity.

关键词： relative denitrification index potential net denitrification rate marsh soil saline-alkaline wetland

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Sulfur nanoparticles encapsulated in reduced graphene oxide nanotubes for flexible lithium-sulfur batteries

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Nano Research 2018年第3期11卷 1345-1357页

作者： Kena Chen Jun Cao qiongqiong lu Qingrong Wang Minjie Yao Mingming Han Zhiqiang Niu Jun Chen Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) College of Chemistry Nankai University Tianjin 300071 China Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University Tianjin 300071 China

Rapid development of flexible electronic devices is promoting the design of flexible energy-storage devices. Lithium-sulfur （Li-S） batteries are considered as promising candidates for high energy density energy-storage devices. Therefore, flexible Li-S batteries are desired. In this study, we fabricated composite films of freestanding reduced graphene oxide nanotubes wrapped sulfur nanoparticles （RGONTs@S） by pressing RGONTs@S composite foams, which were synthesized by combining cold quenching with freeze-drying and a subsequent reduction process. These RGONTs@S composite films can serve as self-supporting cathodes for Li-S batteries without additional binders and conductive agents. Their interconnected tubular structure allows easy electron transport throughout the network and helps to confine the polysulfides produced during the charge/ discharge process. As a result, the RGONTs@S composite films exhibited a high initial specific capacity, remarkable cycling stabilit36 and excellent rate capability. More importantly, the RGONTs@S composite films can serve as electrodes in flexible Li-S batteries. As a proof of concept, soft-packaged Li-S batteries were assembled using these electrodes and they displayed stable electrochemical performance at different bending states.

关键词： lithium-sulfur batteries graphene nanotubes flexible

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Porous nitrogen-enriched hollow carbon nanofibers as freestanding electrode for enhanced lithium storage

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Chinese Journal of Chemical Engineering 2021年第4期34卷 416-422页

作者： Xiaosa Xu Yuqian Qiu Jianping Wu Baichuan Ding Qianhui Liu Guangshen Jiang qiongqiong lu Jiangan Wang Fei Xu Hongqiang Wang State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU)Xi'an 710072China Leibniz Institute for Solid State and Materials Research(IFW)Dresden e.V. Helmholtzstr 2001069 DresdenGermany

Onedimensional porous carbons bearing high surface areas and sufficient heteroatom doped functionalities are essential for advanced electrochemical energy storage devices,especially for developing freestanding film *** we develop a porous,nitrogenenriched,freestanding hollow carbon nanofiber(PNFHCF)electrode material via filtration of polypyrrole(PPy)hollow nanofibers formed by in situ selfdegraded templateassisted strategy,followed by NH3assisted *** PNFHCF retains the freestanding film morphology that is composed of threedimensional networks from the entanglement of 1D nanofiber and delivers 3.7fold increase in specific surface area(592 m^(2)g^(-1))compared to the carbon without NH_(3)treatment(FHCF).In spite of the enhanced specific surface area,PNFHCF still exhibits comparable high content of surface N functionalities(8.8%,atom fraction)to *** developed hierarchical porous structure without sacrificing N doping functionalities together enables the achievement of high capacity,highrate property and good cycling stability when applied as selfsupporting anode in lithiumion batteries,superior to those of FHCF without NH3 treatment.

关键词： Energy Electrochemistry Nanomaterials Hollow carbon nanofibers Freestanding electrode Lithium-ion batteries

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Carbon materials for stable Li metal anodes: Challenges, solutions, and outlook

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Carbon Energy 2021年第6期3卷 957-975页

作者： qiongqiong lu Yulin Jie Xiangqi Meng Ahmad Omar Daria Mikhailova Ruiguo Cao Shuhong Jiao Yan lu Yaolin Xu Leibniz Institute for Solid State and Materials Research(IFW)Dresden e.V. DresdenGermany Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Materials for Energy ConversionDepartment of Materials Science and EngineeringUniversity of Science and Technology of ChinaHefeiChina Department of Electrochemical Energy Storage Helmholtz-Zentrum Berlin für Materialien und Energie(HZB)BerlinGermany Institute of Chemistry University of PotsdamPotsdamGermany

Lithium(Li)metal is regarded as the ultimate anode for next-generation Li-ion batteries due to its highest specific capacity and lowest electrochemical ***,the Li metal anode has limitations,including virtually infinite volume change,nonuniform Li deposition,and an unstable electrode-electrolyte interface,which lead to rapid capacity degradation and poor cycling stability,significantly hindering its practical *** address these issues,intensive efforts have been devoted toward accommodating and guiding Li deposition as well as stabilizing the interface using various carbon materials,which have demonstrated excellent effectiveness,benefiting from their vast variety and excellent tunability of the structure-property *** review is intended as a guide through the fundamental challenges of Li metal anodes to the corresponding solutions utilizing carbon *** specific functionalities and mechanisms of carbon materials for stabilizing Li metal anodes in these solutions are discussed in *** from the stabilization of the Li metal anode in liquid electrolytes,attention has also been paid to the review of anode-free Li metal batteries and solid-state batteries enabled by strategies based on carbon ***,we have reviewed the unresolved challenges and presented our outlook on the implementation of carbon materials for stabilizing Li metal anodes in practical applications.

关键词： carbon materials interface engineering Li deposition regulation Li metal anode structure stabilization

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Flexible MXene films for batteries and beyond

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Carbon Energy 2022年第4期4卷 598-620页

作者： Yang Huang qiongqiong lu Dianlun Wu Yue Jiang Zhenjie Liu Bin Chen Minshen Zhu Oliver GSchmidt Shenzhen Key Laboratory of Polymer Science and Technology College of Materials Science and EngineeringShenzhen UniversityShenzhenChina Institute for Complex Materials Leibniz IFW DresdenDresdenGermany Center for Materials Architecturesand Integration of Nanomembranes(MAIN)Chemnitz University of TechnologyChemnitzGermany Material Systems for Nanoelectronics Chemnitz University of TechnologyChemnitzGermany School of Science Dresden University of TechnologyDresdenGermany

MXenes add dozens of metallic conductors to the family of two-dimensional(2D)materials.A top-down synthesis approach removing A-layer atoms(e.g.,Al,Si,and Ga)in MAX phases to produce 2D flakes attaches various surface terminations to *** these terminations,MXenes show tunable properties,promising a range of applications from energy storage devices to electronics,including sensors,transistors,and *** are also excellent building blocks to create flexible films used for flexible and wearable *** article summarizes the synthesis of MXene flakes and highlights aspects that need attention for flexible *** than listing the development of energy storage devices in detail,we focus on the main challenges of and solutions for constructing high-performance ***,we show the applications of MXene films in electronics to call on designs to construct a complete system based on MXene with good flexibility,which consists of a power source,sensors,transistors,and wireless communications.

关键词： 2D materials flexible batteries flexible electronics intelligent system MXene

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