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Rare Metals 2024年第2期43卷 612-623页

作者： Jia Luo Shi-Li Xiang Dan-Yang Han An Liu João Cunha Gang-Yong Li Zhao-Hui Hou Hong Yin School of Chemistry and Chemical Engineering Key Laboratory of Hunan Province for Advanced Carbon-based Functional MaterialsHunan Institute of Science and TechnologyYueyang414006China Hubei Jiufengshan Laboratory Wuhan430206China International Iberian nanotechnology Laboratory(INL) Av.Mestre Jose Veiga4715-330BragaPortugal

Transition metal sulfide(TMS)anodes exhibit the characteristics of phase stability and high capacity for lithium/sodium-ion batteries(LIBs/SIBs).However,the TMS anodes often suffer from poor electronic conductivity,low ionic diffusion and large volume expansion during Li/na-ion intercalation significantly impairing the Li/na-storage performance.Herein,a long chain heterostructure composed of the Co_(9)S_(8) and SnS are first reported,which can generate rich phase interfaces,and small crystal domains.The unique structure can facilitate the properties of reactivity,conductivity and ionic diffusion.In addition,the heterostructure surface is modified by the N-doped carbon(N-DC@(CoSn)S),successfully improving the structural stability.The synergistic effects of Co_(9)S_(8)/SnS heterostructure and coated carbon layer effectively increase the capacity and cycling stability.The N-DC@(CoSn)S anode delivers enhanced high specific capacities of 820.6 mAh·g^(−1) at 1.0 A·g^(–1) after 500 cycles for LIBs and 339.2 mAh·g^(–1)at 0.5 A·g^(–1) after 1000 cycles for SIBs,respectively.This work is expected to provide a material design idea for preparing LIBs/SIBs with high capacity and long cycling life.

关键词： Interface engineering Long chain heterostructure High capacity Cycling stability Li na-ion batteries

Designing a P2-type cathode material with Li in both na and transition metal layers for na-ion batteries

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Chinese Physics B 2022年第9期31卷 157-162页

作者：高健翔孙凯郭浩李正耀王建林马小柏白雪东陈东风 China Institute of Atomic Energy Beijing 102413China State Key Laboratory for Surface Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China

P2-type layered oxides have been considered as promising cathode materials for na-ion batteries,but the capac-ity decay resulting from the na+/vacancy ordering and phase transformation limits their future large-scale applica-tions.Herein,the impact of Li-doping in different layers on the structure and electrochemical performance of P2-type na_(0.7)Ni_(0.35)Mn_(0.65)O_(2) is investigated.It can be found that Li ions successfully enter both the na and transition metal layers.The strategy of Li-doping can improve the cycling stability and rate capability of P2-type layered oxides,which promotes the development of high-performance na-ion batteries.

关键词： na_(0.7)Ni_(0.35)Mn_(0.65)O_(2) Li-doping P2-type cathode na-ion batteries

Boosting sodium-storage properties of hierarchical na_(3)V_(2)(PO_(4))_(3)@C micro-flower cathodes by tiny Cr doping:The effect of“four ounces moving a thousand pounds”

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nano Research 2024年第1期17卷 235-244页

作者： Yongjia Wang Guoshuai Su Xiaoying Li Linrui Hou Longwei Liang Changzhou Yuan School of Materials Science&Engineering University of JinanJinan 250022China

na_(3)V_(2)(PO_(4))_(3)(NVP),as a great potential cathode candidate for na-ion batteries(NIBs),has attracted enormous interest due to its three-dimensional(3D)large open framework for convenient na+transport,yet its practical application is still limited by its inferior electron conductivity and sluggish na+diffusion kinetics.Herein,the tiny Cr doped hierarchical NVP micro-flower cathodes(i.e.,na_(3)V_(2-x)Crx(PO_(4))_(3)@C,x≤0.1),which are self-assembled with single-crystal nanoflake subunits in-situ coated with carbon nano-shell,are designed and fabricated via a scalable avenue.The optimized cathode,i.e.,na_(3)V_(1.94)Cr_(0.06)(PO_(4))_(3)@C(NVCP-6),was endowed with more electro-active na(2)sites and higher electronic/ionic conductivity for efficient sodium storage.Benefiting from these competitive merits,the NVCP-6,when evaluated as a cathode towards NIBs,exhibits an ultrahigh-rate capability of 99.8 mAh·g^(-1)at 200 C and superior stability of 82.2%over 7300 cycles at 50 C.Furthermore,the NVCP-6 based full NIBs display remarkable electrochemical properties in terms of both high-rate capacities and long-duration cycling properties at different temperatures(-20–50°C).The contribution,i.e.,the design of“four ounces can move a thousand pounds”,here will promote the practical industrial application of NVP towards advanced NIBs.

关键词： na_(3)V_(2)(PO_(4))_(3)cathode tiny Cr doping active na sites ultrahigh-rate capability na-ion batteries

Achieving a superior na storage performance of Fe-based Prussian blue cathode by coating perylene tetracarboxylic dianhydride amine

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Carbon Energy 2024年第5期6卷 53-64页

作者： Xin-Yuan Fu Lu-Lu Zhang Zhao-Yao Chen Yunkai Xu Junxiu Wu Cheng-Cheng Wang Xiao-Kai Ding Xue-Lin Yang Jun Lu Hubei Provincial Collaborative Innovation Center for New Energy Microgrid College of Electrical Engineering&New EnergyChina Three Gorges UniversityYichangHubeiChina College of Materials and Chemical Engineering China Three Gorges UniversityYichangHubeiChina College of Chemical and Biological Engineering Zhejiang UniversityHangzhouChina

Fe-based Prussian blue(Fe-PB)cathode material shows great application potential in sodium(na)-ion batteries due to its high theoretical capacity,long cycle life,low cost,and simple preparation process.However,the crystalline water and vacancies of Fe-PB lattice,the low electrical conductivity,and the dissolution of metal ions lead to limited capacity and poor cycling stability.In this work,a perylene tetracarboxylic dianhydride amine(PTCDA)coating layer is successfully fabricated on the surface of Fe-PB by a liquid-phase method.The aminated PTCDA(PTCA)coating not only increases the specific surface area and electronic conductivity but also effectively reduces the crystalline water and vacancies,which avoids the erosion of Fe-PB by electrolyte.Consequently,the PTCA layer reduces the charge transfer resistance,enhances the na-ion diffusion coefficient,and improves the structure stability.The PTCA-coated Fe-PB exhibits superior na storage performance with a first discharge capacity of 145.2 mAh g^(−1) at 100 mA g^(−1).Long cycling tests exhibit minimal capacity decay of 0.027%per cycle over 1000 cycles at 1 A g^(−1).Therefore,this PTCA coating strategy has shown promising competence in enhancing the electrochemical performance of Fe-PB,which can potentially serve as a universal electrode coating strategy for na-ion batteries.

关键词： cathode material coating Fe-based Prussian blue na-ion batteries perylene tetracarboxylic dianhydride amine

Disordered carbon anodes for na-ion batteries—quo vadis?

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Science China Chemistry 2021年第10期64卷 1679-1692页

作者： Fei Xie Zhen Xu Zhenyu Guo Yaxiang Lu Liquan Chen Maria-Magdalena Titirici Yong-Sheng Hu Key Laboratory for Renewable Energy Beijing Key Laboratory for New Energy Materials and DevicesBeijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing 100190China Department of Chemical Engineering Imperial College LondonLondon SW72AZUK

na-ion batteries(NIBs)are gradually attracting much attention as an alternative to lead-acid batteries and supplement to Li-ion batteries(LIBs)owing to the abundant na resources and excellent cost-effectiveness.Since the most commonly used graphite as an anode material in LIBs cannot be inherently used in NIBs,tremendous efforts have been made to advance the fundamental understanding and design of suitable anode materials for NIBs,including the improvement of na storage capacity and the study on na storage mechanisms.According to all these studies,disordered carbons are now the most promising anode candidates for NIBs.In this review,we discuss the current challenges and remaining problems to be solved in the area of disordered carbon anode materials for NIBs and provide future insights and research directions.

关键词： disordered carbon anode na-ion batteries

Mg-doped layered oxide cathode for na-ion batteries

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Chinese Physics B 2022年第6期31卷 125-131页

作者：丁月君丁飞翔容晓晖陆雅翔胡勇胜 Key Laboratory for Renewable Energy Beijing Key Laboratory for New Energy Materials and DevicesBeijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijing 100190China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100190China

na-ion batteries(NIBs)are regarding as the optimum complement for Li-ion batteries along with the rapid development of stationary energy storage systems.In order to meet the commercial demands of cathodes for NIBs,O3-type Cu containing layered oxide na_(0.9)0Cu_(0.22)Fe_(0.30)Mn_(0.48O_(2))with good comprehensive performance and low-cost element components is very promising for the practical use.However,only part of the Cu^(3+)/Cu^(2+)redox couple participated in the redox reaction,thus impairing the specific capacity of the cathode materials.Herein,Mg2+-doped O3-na0.90Mg0.08Cu0.22Fe0.30Mn0.40O_(2)layered oxide without Mn3+was synthesized successfully,which exhibited improved reversible specific capacity of 118 mAh/g in the voltage range of 2.4-4.0 V at 0.2 C,corresponding to the intercalation/deintercalation of 0.47 na+(0.1 more than that of na_(0.9)0Cu_(0.22)Fe_(0.30)Mn_(0.48O_(2))).This work demonstrates an important strategy to obtain advanced layered oxide cathodes for NIBs.

关键词： copper redox layered oxide cathode na-ion batteries energy storage

Fast and highly reversible na^(+)intercalation/extraction in Zn/Mg dual-doped P2-na_(0.67)MnO_(2)cathode material for high-performance na-ion batteries

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nano Research 2021年第10期14卷 3531-3537页

作者： Xiaoqin Huang Deli Li Haijian Huang Xiao Jiang Zeheng Yang Weixin Zhang School of Chemistry and Chemical Engineering Hefei University of TechnologyHefei 230009China Anhui Key Laboratory of Controllable Chemical Reaction&Material Chemical Engineering Hefei 230009China

P2-type layered na_(0.67)MnO_(2)has been considered to be a promising candidate cathode material for sodium ion batteries.Nevertheless,the undesired phase transitions during operation and the large na^(+)radius induced sluggish ion diffusion remain the stumbling blocks to realize its high performance.Herein,we propose a Zn/Mg co-doping strategy,which is proved to have bifunctional effects.First,relative to the pristine P2-na_(0.67)MnO_(2)and the single-ion(Zn/Mg)doped samples,the Zn/Mg dual-doped P2-na_(0.67)MnO_(2)demonstrates a lower Mn^(3+)/Mn^(4+)ratio and a higher lattice O content,which facilitate the structural stability of the cathode material.More intriguingly,the Zn/Mg co-doping gives rise to enlarged interplanar spacing,which provides spacious ion diffusion channels for fast na^(+)intercalation/extraction.As a result,the Zn/Mg dual-doped sample exhibits a high na^(+)diffusion coefficient and a solid-solution reaction during charge/discharge,with a cell volume change determined to be only 0.55%.Taking advantages of the above favorable features,the Zn/Mg dual-doped P2-na_(0.67)MnO_(2)demonstrates a high rate performance with 67.2 mAh·g^(-1)delivered at 10 C and a decent cycling stability with a capacity retention of 93.8%achieved at 1 C after 100 cycles.This work introduces the Zn/Mg co-doping strategy to simultaneously improve the cycling stability and rate capability of P2-na_(0.67)MnO_(2),which may offer a promising avenue for further performance enhancement of the layered na-ion batteries cathode materials.

关键词： na-ion batteries cathode materials co-doping na-ion diffusion structural stability

Metal–organic framework derived hierarchical porous TiO_2 nanopills as a super stable anode for na-ion batteries

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Journal of Energy Chemistry 2017年第4期26卷 667-672页

作者： Huan Li Zhiguo Zhang Xiao Huang Tongbin Lan Mingdeng Wei Tingli Ma Graduate School of Life Science and Systems Engineering Kyushu Institute of Technology State Key Laboratory of Photocatalysis on Energy and Environment Fuzhou University School of Petroleum and Chemical Engineering Dalian University of Technology

Hierarchical porous Tionanopills were synthesized using a titanium metal-organic framework MIL-125（Ti） as precursor. The as-synthesized Tionanopills owned a large specific surface area of 102 m/g and unique porous structure. Furthermore, the obtained Tionanopills were applied as anode materials for na-ion batteries for the first time. The as-synthesized Tionanopills achieved a high discharge capacity of 196.4 m Ah/g at a current density of 0.1 A/g. A discharge capacity of 115.9 m Ah/g was obtained at a high current density of 0.5 A/g and the capacity retention was remained as high as 90% even after 3000 cycles. The excellent electrochemical performance can be attributed to its unique hierarchical porous feature.

关键词： Hierarchical porous structure TiO2 nanopills Metal–organic framework na-ion batteries

Hard carbon derived from coconut shells,walnut shells,and corn silk biomass waste exhibiting high capacity for na-ion batteries

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Journal of Energy Chemistry 2021年第7期30卷 207-218页

作者： Cristina Nita Biao Zhang Joseph Dentzer Camélia Matei Ghimbeu Universitéde Haute-Alsace Institut de Science des Matériaux de Mulhouse(IS2M)CNRS UMR 7361F-68100 MulhouseFrance Universitéde Strasbourg F-67081 StrasbourgFrance Center for Advanced Laser Technologies(CETAL) National Institute for LasersPlasma and Radiation PhysicsAtomistilor 409 bisRO-77125 MagureleRomania Department of Applied Physics The Hong Kong Polytechnic UniversityKowloonHong KongChina Réseau sur le Stockage Electrochimique de l’Energie(RS2E) CNRS FR345933 Rue Saint Leu80039 Amiens CedexFrance

In recent years,hard carbon materials have gained significant interest as anode materials for na-ion batteries.Biomass waste is considered one of the most interesting,renewable,available,and cost-effective precursor to obtain hard carbon(HC);however,HC properties must be finely tuned to achieve performance comparable to those provided by Li-ion batteries.In this work,three biomass wastes(coconut shells,walnut shells,and corn silk) were evaluated as potential precursors for HC preparation involving a pyrolysis process and subsequent acid washing to remove the inorganic impurities.All obtained materials exhibited low and similar specific surface areas(ionalities.The walnut shell HC possessed a lower amount of inorganic impurities and oxygen-based functional groups compared to the coconut shell and corn silk HCs,leading to higher initial coulombic efficiency(iCE).The structural organization was higher in the case of the walnut shell HC,while the corn silk HC revealed a heterogeneous structure combining both highly disordered carbon and localized graphitized domains.All HCs delivered high initial reversible capacities between 293 and 315 mAh g^(-1) at 50 mA g^(-1) current rate,which remained rather stable during long-term cycling.The best capacity(293 mAh g^(-1) after 100 charge/discharge cycles) and highest capacity retention(93%) was achieved in walnut HCs in half-cells,which could be associated with its higher sp2 C content,better organized structure,and fewer impurities.An "adsorption-insertion" na storage mechanism is suggested based on several techniques.The walnut HCs exhibited an attractive energy density of 279 Wh/kg when tested in full cells.

关键词： Biomass Pyrolysis Hard carbon Anode na-ion batteries Energy storage

Enhancing the cycling stability of na-ion batteries by bonding MoS2 on assembled carbon-based materials

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nano Materials Science 2019年第4期1卷 310-317页

作者： Pin Song Jun Di Lixing Kang Manzhang Xu Bijun Tang Jun Xiong Jiewu Cui Qingsheng Zeng Jiadong Zhou Yongmin He Qundong Fu Juan Peng Shasha Guo Bo Lin Jingyu Zhang Peng Meng Zheng Liu School of Materials Science&Engineering Nanyang Technological UniversitySingapore639798Singapore Institute for Energy Research Jiangsu University301 Xuefu RoadZhenjiang212013China School of Materials Science and Engineering Hefei University of TechnologyHefei230009China Stage Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering School of Chemistry and Chemical EngineeringNingxia UniversityYinchuan750021China

Room temperature na-ion batteries(SIBs) show great potential for use as renewable energy storage systems.However, the large-scale application of SIBs has been hindered by the lack of an ideal SIBs anode material. We synthesized MoS2 on carbonized graphene-chitosan(G-C) using the hydrothermal method. The strong interaction between the MoS2 and the G-C greatly improved the electron transport rate and maintained the structural stability of the electrode, which lead to both an excellent rate capability and long cycle stability. The G-C monolith was proven to enhance the electrical conductivity of the composites and served as a matrix for uniformly dispersing active MoS2 nanosheets(NSs), as well as being a buffer material to adapt to changes in volume during the cycle.Serving as an anode material for SIBs, the MoS2-G-C electrode showed good cycling stability(527.3mAh g-1 at100 m A g-1 after 200 cycles), excellent rate capability, and a long cycle life(439.1 m Ah g-1 at 1 A g-1 after 200 cycles).

关键词： na-ion batteries Carbon-based materials MoS2 Long cycle life