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Double-layered skeleton of Li alloy anchored on 3D metal foam enabling ultralong lifespan of Li anode under high rate

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Chinese Chemical Letters 2024年第3期35卷 479-485页

作者： Chaohui Wei Zeyu Yao Jin Ruan Zhicui song Aijun Zhou yingze song Donghuang Wang Jicheng Jiang Xin Wang Jingze Li Yangtze Delta Region Institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhou 313000China School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731China State Key Laboratory of Environmental-Friendly Energy Materials Tianfu Institute of Research and InnovationSchool of Materials and ChemistrySouthwest University of Science and TechnologyMianyang 621010China

The high specific capacity and low negative electrochemical potential of lithium metal anodes(LMAs),may allow the energy density threshold of Li metal batteries(LMBs)to be pushed higher.However,the existing detrimental issues,such as dendritic growth and volume expansion,have hindered the practical implementation of LMBs.Introducing three-dimensional frameworks(e.g.,copper and nickel foam),have been regarded as one of the fundamental strategies to reduce the local current density,aiming to extend the Sand'time.Nevertheless,the local environment far from the skeleton is almost the same as the typical plane Li,due to macroporous space of metal foam.Herein,we built a double-layered 3D current collector of Li alloy anchored on the metal foam,with micropores interconnected macropores,via a viable thermal infiltration and cooling strategy.Due to the excellent electronic and ionic conductivity coupled with favorable lithiophilicity,the Li alloy can effectively reduce the nucleation barrier and enhance the Li^(+)transportation rate,while the metal foam can role as the primary promotor to enlarge the surface area and buffer the dimensional variation.Synergistically,the Li composite anode with hierarchical structure of primary and secondary scaffolds realized the even deposition behavior and minimum volume expansion,outputting preeminent prolonged cycling performances under high rate.

关键词： Double-layered skeleton Li alloy 3D Metal foam Ultralong lifespan Lithium metal batteries High rate

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Tunable vacancy defect chemistry on free-standing carbon cathode for lithium-sulfur batteries

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Green Energy & Environment 2023年第2期8卷 354-359页

作者： Xi Zhang Xiaohong Liu Wei Zhang yingze song State Key Laboratory of Environment-Friendly Energy Materials School of Materials Science and EngineeringSouthwest University of Science and TechnologyMianyang621010China National University of Singapore(Chongqing)Research Institute Chongqing401123China Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing400714China

The defect chemistry is successfully modulated on free-standing and binder-free carbon cathodes for highly efficient Li-S redox reactions.Such rationally regulated defect engineering realizes the synchronization of ion/electron-conductive and defect-rich networks on the threedimension carbon cathode,leading to its tunable activity for both relieving the shuttle phenomenon and accelerating the sulfur redox reaction kinetics.As expected,the defective carbon cathode harvests a high rate capacity of 1217.8 mAh g^(-1)at 0.2 C and a superior capacity retention of61.7%at 2 C after 500 cycles.Even under the sulfur mass loading of 11.1 mg cm^(-2),the defective cathode still holds a remarkable areal capacity of 8.5 mAh cm^(-2).

关键词： Li–S chemistry Tunable vacancy defects Free-standing cathode Electrocatalytic activity Sulfur redox reaction kinetics

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Bidirectionally polarizing surface chemistry of heteroatom-doped carbon matrix towards fast and longevous lithium-sulfur batteries

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Chinese Chemical Letters 2023年第7期34卷 313-317页

作者： Hongyang Li Bo Cai yingze song Wenlong Cai Gaoran Li MIIT Key Laboratory of Advanced Display Materials and Devices College of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing210094China State Key Laboratory of Organic Electronics and Information Displays&Institute of Advanced Materials(IAM) Nanjing University of Posts&TelecommunicationsNanjing210023China State Key Laboratory of Environmental-Friendly Energy Materials School of Materials Science and EngineeringSouthwest University of Science and TechnologyMianyang621010China Department of Advanced Energy Materials College of Materials Science and EngineeringSichuan UniversityChengdu 610064China

Herein, a bidirectional polarization strategy is proposed for hosting efficient and durable lithium-sulfur battery(Li-S) electrochemistry. By co-doping electronegative N and electropositive B in graphene matrix(BNrGO), the bidirectional electron redistribution enables a higher polysulfide affinity over its monodoped counterparts, contributing to strong sulfur immobilization and fast conversion kinetics. As a result,BNrGO as the cathode host matrix realizes excellent cycling stability over 1000 cycles with a minimum capacity fading of 0.027% per cycle, and superb rate capability up to 10 C. Meanwhile, decent areal capacity(6.46 m Ah/cm^(2)) and cyclability(300 cycles) are also achievable under high sulfur loading and limited electrolyte. This work provides instructive insights into the interaction between doping engineering and sulfur electrochemistry for pursuing superior Li-S batteries.

关键词： Lithium-sulfur battery Facile synthesis Heteroatom doping Bidirectional polarization Shuttle effect

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Insight into coupled Ni-Co dual-metal atom catalysts for efficient synergistic electrochemical CO_(2)reduction

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Journal of Energy Chemistry 2023年第12期87卷 509-517,I0013页

作者： Qingchun Zhang Di Liu Yaping Zhang Zhiliang Guo Minpeng Chen Yuyun Chen Bo Jin yingze song Hui Pan State Key Laboratory of Environment-Friendly Energy Materials School of Materials and ChemistryTianfu Institute of Research and InnovationSouthwest University of Science and TechnologyMianyang 621010SichuanChina Institute of Applied Physics and Materials Engineering University of MacaoMacao 999078China School of Chemistry and Chemical Engineering Southeast UniversityNanjing 211189JiangsuChina

The development of highly active,selective,and stable electrocatalysts can facilitate the effective implementation of electrocatalytic CO_(2)conversion into fuels or chemicals for mitigating the energy crisis and climate problems.Therefore,it is necessary to achieve the goal through reasonable material design based on the actuality of the operational active site at the molecular scale.Inspired by the stimulating synergistic effect of coupled heteronuclear metal atoms,a novel Ni-Co atomic pairs configuration(denoted as NiN_(3)?CoN_(3)-NC)active site was theoretically screened out for improving electrochemical CO_(2)reduction reaction(CO_(2)RR).The structure of NiN_(3)?CoN_(3)-NC was finely regulated by adjusting Zn content in the precursors Zn/Co/Ni-zeolite imidazolate frameworks(Zn/Co/Ni-ZIFs)and pyrolysis temperature.The structural features of NiN_(3)?CoN_(3)-NC were systematically confirmed by aberration-corrected HAADF-STEM coupled with 3D atom-overlapping Gaussian-function fitting mapping,XAFS,and XRD.The results of theoretical calculations reveal that the synergistic effect of Ni-Co atomic pairs can effectively promote the*COOH intermediate formation and thus the overall CO_(2)RR kinetic was improved,and also restrained the competitive hydrogen evolution reaction.Due to the attributes of Ni-Co atomic pairs configuration,the developed NiN_(3)?CoN_(3)-NC with superior catalytic activity,selectivity,and durability,with a high turnover frequency of 2265 h^(-1)at-1.1 V(vs.RHE)and maximum Faradaic efficiency of 97.7%for CO production.This work demonstrates the great potential of DACs as highly efficient catalysts for CO_(2)RR,provides a useful strategy to design heteronuclear DACs,exploits the synergistic effect of multiple metal sites to facilitate complex CO_(2)RR catalytic reactions,and inspires more efforts to develop the potential of DACs in various fields.

关键词： Coupled dual-metal atom catalysts CO_(2)reduction reaction Electrocatalysts Density functional theory

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Recent advances of metal phosphides for Li-S chemistry

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Journal of Energy Chemistry 2021年第4期30卷 533-548页

作者： songlin Yu Wenlong Cai Le Chen Lixian song yingze song State Key Laboratory of Environment-Friendly Energy Materials School of Materials Science and EngineeringSouthwest University of Science and TechnologyMianyang 621010SichuanChina Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China

Li-S batteries have been considered as one of advanced next-generation energy storage systems owing to their remarkable theoretical capacity(1672 m Ah g^(-1))and high energy density(2600 Wh kg^(-1)).However,critical issues,mainly pertaining to lithium polysulfide shuttle and slow sulfur reaction kinetics,have posed a fatal threat to the electrochemical performances of Li-S batteries.The situation is even worse for high sulfur-loaded and flexible cathodes,which are the essential components for practical Li-S batteries.In response,the use of metal compounds as electrocatalysts in Li-S systems have been confirmed as an effective strategy to date.Particularly,recent years have witnessed many progresses in phosphidesoptimized Li-S chemistry.This has been motivated by the superior electron conductivity and high electrocatalytic activity of phosphides.In this tutorial review,we offer a systematic summary of active metal phosphides as promoters for Li-S chemistry,aiming at helping to understanding the working mechanism of phosphide electrocatalysts and guiding the construction of advanced Li-S batteries.

关键词： Metal phosphides Li-S chemistry Polysulfide regulation Electrocatalysis

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Ambiently fostering solid electrolyte interphase for low-temperature lithium metal batteries

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Journal of Energy Chemistry 2023年第12期87卷 473-478,I0012页

作者： Jia-Yue Duan Jin-Xiu Chen Fang-Fang Wang Jin-Hao Zhang Xiao-Zhong Fan Liping Wang yingze song Wei Xia Yusheng Zhao Long Kong Frontiers Science Center for Flexible Electronics and Xi’an Institute of Flexible Electronics(IFE) Northwestern Polytechnical UniversityXi’an 710129ShaanxiChina Department of Physics Academy for Advanced Interdisciplinary StudiesSouthern University of Science and TechnologyShenzhen 518055GuangdongChina State Key Laboratory of Environment-Friendly Energy Materials School of Materials Science and EngineeringGraphene Joint Innovation CentreSouthwest University of Science and TechnologyMianyang 621010SichuanChina Eastern Institute for Advanced Study Eastern Institute of TechnologyNingbo 315201ZhejiangChina

Despite being a leading candidate to meet stringent energy targets,lithium(Li) metal batteries(LMBs)face severe challenges at low temperatures such as dramatic increase in impedance,capacity loss and dendrite growth.Unambiguously fingerprinting rate-limited factors of low-temperature LMBs would encourage targeted approaches to promote performances.Herein,the charge transfer impedance across solid electrolyte interphase(SEI) is identified to restrict battery operation under low temperature,and we propose a facile approach on the basis of ambiently fostering SEI(af-SEI) to facilitate charge transfer.The concept of af-SEI stems from kinetic benefits and structural merits to construct SEI at ambient temperature over low temperature developed SEI that is temporally consuming to achieve steady state and that is structurally defective to incur dendrite growth.The af-SEI allows ionically conductive and morphologically uniform layer on the anode surface,which exhibits a lower resistance and induces an even deposition of Li in the subsequent low temperature battery operation.Armed with af-SEI,the LMBs deliver the improved rate performance and prolonged cycle life when subjected to low temperature cycling.This work unveils the underlying causes that limit low temperature LMB performances,and enlightens the facile test protocols to build up favorable SEI,beyond scope of material and morphology design.

关键词： Li matel batteries Ambiently fostering SEI Charge transfer impedance Low temperature kinetics

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Single-atom electrocatalysts for lithium-sulfur chemistry:Design principle,mechanism,and outlook

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Carbon Energy 2023年第4期5卷 13-41页

作者： yingze song Luwei Zou Chaohui Wei Yu Zhou Yue Hu State Key Laboratory of Environment‐Friendly Energy Materials Tianfu Institute of Research and InnovationSchool of Materials and ChemistrySouthwest University of Science and TechnologyMianyangSichuanPeople's Republic of China Yangtze Delta Region Institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhouPeople's Republic of China State Key Laboratory of Powder Metallurgy Hunan Key Laboratory of Nanophotonics and DevicesSchool of Physics and Electronicspowder Metallurgy Research InstituteCentral South UniversityChangshaPeople's Republic of China Key Laboratory of Carbon Materials of Zhejiang Province College of Chemistry and Materials EngineeringWenzhou UniversityWenzhouPeople's Republic of China

Lithium-sulfur batteries(LSBs)have been regarded as one of the promising candidates for the next-generation“lithium-ion battery beyond”owing to their high energy density and due to the low cost of sulfur.However,the main obstacles encountered in the commercial implementation of LSBs are the notorious shuttle effect,retarded sulfur redox kinetics,and uncontrolled dendrite growth.Accordingly,single-atom catalysts(SACs),which have ultrahigh catalytic efficiency,tunable coordination configuration,and light weight,have shown huge potential in the field of LSBs to date.This review summarizes the recent research progress of SACs applied as multifunctional components in LSBs.The design principles and typical synthetic strategies of SACs toward effective Li–S chemistry as well as the working mechanism promoting sulfur conversion reactions,inhibiting the lithium polysulfide shuttle effect,and regulating Li+nucleation are comprehensively illustrated.Potential future directions in terms of research on SACs for the realization of commercially viable LSBs are also outlined.

关键词： design principle lithium-sulfur chemistry mechanism single-atom electrocatalyst

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Defect engineering on carbon black for accelerated Li-S chemistry

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Nano Research 2020年第12期13卷 3315-3320页

作者： Wenlong Cai yingze song Yuting Fang Weiwei Wang songlin Yu Huaisheng Ao Yongchun Zhu Yitai Qian Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemistry University of Science and Technology of ChinaHefei230026China State Key Laboratory of Environment-Friendly Energy Materials School of Materials Science and EngineeringSouthwest University of Science and TechnologyMianyang621010China

Rationally designing sulfur hosts with the functions of confining lithium polysulfides(LiPSs)and promoting sulfur reaction kinetics is critically important to the real implementation of lithium-sulfur(Li-S)batteries.Herein,the defect-rich carbon black(CB)as sulfur host was successfully constructed through a rationally regulated defect engineering.Thus-obtained defect-rich CB can act as an active electrocatalyst to enable the sulfur redox reaction kinetics,which could be regarded as effective inhibitor to alleviate the LiPS shuttle.As expected,the cathode consisting of sulfur and defect-rich CB presents a high rate capacity of 783.8 mA·h·g^−1 at 4 C and a low capacity decay of only 0.07% per cycle at 2 C over 500 cycles,showing favorable electrochemical performances.The strategy in this investigation paves a promising way to the design of active electrocatalysts for realizing commercially viable Li-S batteries.

关键词： Li-S chemistry defect engineering carbon black sulfur reaction kinetics

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Confining MOF-derived SnSe nanoplatelets in nitrogen-doped graphene cages via direct CVD for durable sodium ion storage

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Nano Research 2019年第12期12卷 3051-3058页

作者： Chen Lu Zhenzhu Li Zhou Xia Haina Ci Jingsheng Cai yingze song Lianghao Yu Wanjian Yin Shixue Dou Jingyu Sun Zhongfan Liu College of Energy Soochow Institute for Energy and Materials Innovations(SIEMIS)Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou 215006China Beijing Graphene Institute(BGI) Beijing 100095China Institute for Superconducting and Electronic Materials University of WollongongWollongongNSW 2522Australia Center for Nanochemistry(CNC) Beijing Science and Engineering Center for NanocarbonsBeijing National Laboratory for Molecular SciencesCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China

Tin-based compounds are deemed as suitable anode candidates affording promising sodium-ion storages for rechargeable batteries andhybrid capacitors.However,synergistically tailoring the electrical conductivity and structural stability of tin-based anodes to attain durablesodium-ion storages remains challenging to date for its practical applications.Herein,metal-organic framework(MOF)derived SnSe/C wrappedwithin nitrogen-doped graphene(NG@SnSe/C)is designed targeting durable sodium-ion storage.NG@SnSe/C possesses favorable electricalconductivity and structure stability due to the"inner"carbon framework from the MOF thermal treatment and"outer"graphitic cage from thedirect chemical vapor deposition synthesis.Consequently,NG@SnSe/C electrode can obtain a high reversible capacity of 650 mAh·g^-1 at 0.05 A·g^1,a favorable rate performance of 287.8 mAh·g^1 at 5 A·g^1 and a superior cycle stability with a negligible capacity decay of 0.016%percycle over 3,200 cycles at 0.4 A·g^1.Theoretical calculations reveal that the nitrogen-doping in graphene can stabilize the NG@SnSe/Cstructure and improve the electrical conductivity.The reversible Na-ion storage mechanism of SnSe is further investigated by in-situ X-raydiffraction/ex-s/tu transmission electron microscopy.Furthermore,assembled sodium-ion hybrid capacitor full-cells comprising our NG@SnSe/Canode and an active carbon cathode harvest a high energy/power density of 115.5 Wh·kg^-1/5,742 W·kg^-1,holding promise for next-generationen ergy storages.

关键词： SnSe nitrogervdoped graphene plasma-enhanced chemical vapor deposition conductivity sodium-ion storage

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All VN-graphene architecture derived self-powered wearable sensors for ultrasensitive health monitoring

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Nano Research 2019年第2期12卷 331-338页

作者： Lianghao Yu Yuyang Yi Ting Yao yingze song Yiran Chen Qiucheng Li Zhou Xia Nan Wei Zhengnan Tian Baoqing Nie Li Zhang Zhongfan Liu Jingyu Sun College of Energy Soochow Institute for Energy and Materials Innovations (SIEMIS) Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215006 China School of Electronic and Information Engineering Soochow University Suzhou 215006 China Center for Nanochemistry (CNC) Beijing Science and Engineering Center for Nanocarbons Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular Engineering Peking University Beijing 100871 China

The booming of wearable electronics has nourished the progress on developing multifunctional energy storage systems with versatile flexibility, which enable the continuous and steady power supply even under various deformed states. In this sense, the synergy of flexible energy and electronic devices to construct integrative wearable microsystems is meaningful but remains quite challenging by far. Herein, we devise an innovative supercapacitor/sensor integrative wearable device that is based upon our designed vanadium nitride-graphene (VN-G) architectures. Flexible quasi-solid-state VN-G supercapacitor with ultralight and binder-free features deliver a specific capacitance of^53 F·g^-1 with good cycle stability. On the other hand, VN-G derived pressure sensors fabricated throughout a spray-printing process also manifest favorably high sensitivity (40 kPa^-1 at the range of 2-10 kPa), fast response time (~130 ms), perfect skin conformability, and outstanding stability under static and dynamic pressure conditions. In tum, their complementary unity into a self-powered wearable sensor enables the precise detecti on of physiological motions ranging from pulse rate to phonetic recognition, holding promise for in-practical health monitoring applications.

关键词： VN-graphene architecture solid-state supercapacitor pressure sensor self-powered wearable sensor health monitoring

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