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Infomat 2024年第2期6卷 57-75页

作者： Jiandong Liu Xinhong Hu Shihan Qi Yurong Ren Yong Li jianmin ma School of Chemistry Tiangong UniversityTianjinthe People's Republic of China School of Physics and Electronics Hunan UniversityChangshathe People's Republic of China School of materials Science and Engineering Jiangsu Collaborative Innovation Center of Photovoltaic Science and EngineeringChangzhou UniversityChangzhouthe People's Republic of China State Key Laboratory of Space Power-Sources Technology Shanghai Institute of Space Power SourcesShanghaithe People's Republic of China

High-voltage nickel(Ni)-rich layered oxide-based lithium metal batteries(LMBs)exhibit a great potential in advanced batteries due to the ultra-high energy density.However,it is still necessary to deal with the challenges in poor cyclic and thermal stability before realizing practical application where cycling life is considered.Among many improved strategies,mechanical and chemical stability for the electrode electrolyte interface plays a key role in addressing these challenges.Therefore,extensive effort has been made to address the challenges of electrode-electrolyte interface.In this progress,the failure mechanism of Ni-rich cathode,lithium metal anode and electrolytes are reviewed,and the latest breakthrough in stabilizing electrode-electrolyte interface is also summarized.Finally,the challenges and future research directions of Ni-rich LMBs are put forward.

关键词： electrode-electrolyte interface electrolyte modification failure mechanisms high voltage lithium metal anode nickel-rich layered oxide cathode

F-doped orthorhombic Nb_(2)O_(5) exposed with 97% (100) facet for fast reversible Liþ-Intercalation

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Green Energy & Environment 2024年第4期9卷 723-731页

作者： Xiaodi Liu Yufeng Tang Dan Zhang Guangyin Liu Xinwei Luo Yi Shang Xiu Li jianmin ma College of Chemistry and Pharmaceutical Engineering Nanyang Normal UniversityNanyang473061China School of materials and Energy University of Electronic Science and Technology of ChinaChengdu611731China

Orthorhombic Nb_(2)O_(5)(T-Nb_(2)O_(5))is attractive for fast-charging Li-ion batteries,but it is still hard to realize rapid charge transfer kinetics for Li-ion storage.Herein,F-doped T-Nb_(2)O_(5) microﬂowers(F-Nb_(2)O_(5))are rationally synthesized through topotactic conversion.Specifically,F-Nb_(2)O_(5) are assembled by single-crystal nanoﬂakes with nearly 97%exposed(100)facet,which maximizes the exposure of the feasible Li^(+)transport pathways along loosely packed 4g atomic layers to the electrolytes,thus effectively enhancing the Li^(+)-intercalation performance.Besides,the band gap of F-Nb_(2)O_(5) is reduced to 2.87 eV due to the doping of F atoms,leading to enhanced electrical conductivity.The synergetic effects between tailored exposed crystal facets,F-doping,and ultrathin building blocks,speed up the Li^(+)/electron transfer kinetics and improve the pseudocapacitive properties of F-Nb_(2)O_(5).Therefore,F-Nb_(2)O_(5) exhibit superior rate capability(210.8 and 164.9 mah g^(-1) at 1 and 10 C,respectively)and good long-term 10 C cycling performance(132.7 mah g^(-1) after 1500 cycles).

关键词： Exposed facets Orthorhombic Nb_(2)O_(5) F-doping Pseudocapacitive intercalation anode Li-ion storage

Modulating the p-band center of carbon nanofibers derived from Co spin state as anode for high-power sodium storage

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Chinese Chemical Letters 2024年第1期35卷 537-541页

作者： Zhijia Zhang Yuwen Zhao Yanhao Wei Mengmeng Zhang Chunsheng Li Yan Sun jianmin ma Yong Jiang School of materials Science and Engineering State Key Laboratory of Separation Membrane and Membrane ProcessesTiangong UniversityTianjin 300387China School of Chemistry and Life Sciences Suzhou University of Science and TechnologySuzhou 215009China Key Laboratory of Advanced Electrode materials for Novel Solar Cells for Petroleum and Chemical Industry of China Suzhou University of Science and TechnologySuzhou 215009China School of Chemistry Tiangong UniversityTianjin 300387China School of Electronic and Information Engineering Institute of Quantum Materials and DevicesTiangong UniversityTianjin 300387China

Carbon nanofibers(CNFs)have received extensive and in-depth studied as anodes for sodium-ion batteries(SIBs),and yet their initial Coulombic efficiency and rate capability remain enormous challenge at practical level.Herein,CNFs anchored with cobalt nanocluster(CNFs-Co)were prepared using chemical vapor deposition and thermal reduction methods.The as-prepared CNFs-Co shows a high initial Coulombic efficiency of 91%and a high specific discharge capacity of 246 mah/g at 0.1 A/g after 200 cycles as anode for SIBs.Meanwhile,the CNFs-Co anode still delivers a high cycling stability with 108 mah/g after 1000 cycles at 10 A/g.These excellent electrochemical properties could be attributed to the involved spin state Co,which endows CNFs with large interplanar spacing(0.39 nm)and abundant vacancy defects.Importantly,the spin state Co downshifts the p-band center of carbon and strengthens the Na+adsorption energy from-2.33 eV to-2.64 eV based on density functional theory calculation.This novel strategy of modulating the carbon electronic structure by the spin state of magnetic metals provides a reference for the development of high-performance carbon-based anode materials.

关键词： Carbon nanofibers Chemical vapor deposition Spin state p-band center Sodium-ion battery

Lithium Hexamethyldisilazide Endows Li||NCM811 Battery with Superior Performance

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Nano-Micro Letters 2023年第3期15卷 32-34页

作者： Junda Huang Yaxiong Yang Yanxia Liu jianmin ma School of Chemistry Tiangong UniversityTianjin 300387People’s Republic of China School of Physics and Electronics Hunan UniversityChangsha 410082People’s Republic of China Institute of Science and Technology for New Energy Xi’an Technological UniversityXi’an 710021People’s Republic of China

The construction of stable cathode electrolyte interphase(CEI)is the key to improve the NCM811 particle structure and interfacial stability via electrolyte engineering.In He’s work,lithium hexamethyldisilazide(LiHMDS)as the electrolyte additive is proposed to facilitate the generation of stable CEI on NCM811 cathode surface and eliminate H_(2)O and HF in the electrolyte at the same time,which boosts the cycling performance of Li||NCM811 battery up to 1000 or 500 cycles with 4.5 V cut-off voltage at 25 or 60℃.

关键词： Lithium metal battery Electrolyte additive Cathode electrolyte interphase Lithium hexamethyldisilazide Cycling performance

The functions of exosomes targeting astrocytes and astrocyte-derived exosomes targeting other cell types

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Neural Regeneration Research 2024年第9期19卷 1947-1953页

作者： Hongye Xu He Li Ping Zhang Yuan Gao Hongyu ma Tianxiang Gao Hanchen Liu Weilong Hua Lei Zhang Xiaoxi Zhang Pengfei Yang jianmin Liu Neurovascular Center Changhai HospitalNaval Medical UniversityShanghaiChina Department of Emergency Naval Hospital of Eastern TheaterZhoushanZhejiang ProvinceChina

Astrocytes are the most abundant glial cells in the central nervous system;they participate in crucial biological processes,maintain brain structure,and regulate nervous system function.Exosomes are cell-derived extracellular vesicles containing various bioactive molecules including proteins,peptides,nucleotides,and lipids secreted from their cellular sources.Increasing evidence shows that exosomes participate in a communication network in the nervous system,in which astrocyte-derived exosomes play important roles.In this review,we have summarized the effects of exosomes targeting astrocytes and the astrocyte-derived exosomes targeting other cell types in the central nervous system.We also discuss the potential research directions of the exosome-based communication network in the nervous system.The exosome-based intercellular communication focused on astrocytes is of great significance to the biological and/or pathological processes in different conditions in the brain.New strategies may be developed for the diagnosis and treatment of neurological disorders by focusing on astrocytes as the central cells and utilizing exosomes as communication mediators.

关键词： astrocytes communication exosomes neurological disorders targeting mechanism

High rodent abundance increases seed removal but decreases scatter-hoarding and seedling recruitment along an elevational gradient

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Integrative Zoology 2023年第5期18卷 843-858页

作者： Fei YU Linjun ZHANG Yang WANG Xianfeng YI Shuang ZHANG jianmin ma Zimei DONG Guangwen CHEN Keming ma State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijingChina College of Life Sciences Henan Normal UniversityXinxiangChina College of Life Sciences Qufu Normal UniversityQufuChina

The distributions of small rodents in mountainous environments across different elevations can provide important information regarding the effects of climate change on the dispersal of plant species.However,few studies of oak forest ecosystems have compared the elevational patterns of sympatric rodent diversity,seed dispersal,seed bank,and seedling abundance.Thus,we tested the differences in the seed disperser composition and abundance,seed dispersal,seed bank abundance,and seedling recruitment for Quercus wutaishanica along 10 elevation levels in the Taihang Mountains,China.Our results provide strong evidence that complex asymmetric seed dispersal and seedling regeneration exist along an elevational gradient.The abundance of rodents had a significant negative correlation with the elevation and the seed removal rates peaked and then declined with increasing elevation.The seed removal rates were higher at middle and lower elevations than higher elevations but acorns were predated by 5 species of seed predators at middle and lower elevations,and thus,there was a lower likelihood of recruitment compared with those dropped beneath mother oaks at higher elevations.More importantly,the number of individual seeds in the seed bank and seedlings increased with the elevation,although dispersal services were reduced at sites lacking rodents.As conditional mutualists,the rodents could possibly act as antagonistic seed predators rather than mutualistic seed dispersers at low and middle elevations,thereby resulting in the asymmetric pattern of rodent and seedling abundance with increasing elevation to affect the community assembly and ecosystem functions on a large spatial scale.

关键词： elevation rodent seed bank seed dispersal seedling distribution

Perspective on low-temperature electrolytes for LiFePO 4-based lithium-ion batteries

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International Journal of Minerals,Metallurgy and materials 2023年第1期30卷 1-13页

作者： Xianglong Chen Yudong Gong Xiu Li Feng Zhan Xinhua Liu jianmin ma School of Resources Environment and MaterialsGuangxi UniversityNanning 530004China Peking University Science Park Beijing 100871China School of materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731China School of Transportation Science and Engineering Beihang UniversityBeijing 100871China

The olivine-type lithium iron phosphate(LiFePO_(4))cathode material is promising and widely used as a high-performance lithium-ion battery cathode material in commercial batteries due to its low cost,environmental friendliness,and high safety.At present,LiFePO_(4)/C sec-ondary batteries are widely used for electronic products,automotive power batteries,and other occasion-related applications with good thermal stability,stable cycle performance,and low room-temperature self-discharge rate.However,LiFePO_(4)-based battery applications are seriously limited when they are operated in a cold climate.This outcome is due to a considerable decrease in Li+transport capabilities within the elec-trode,particularly leading to a dramatic decrease in the electrochemical capacity and power performance of the electrolyte.Therefore,the design of low-temperature electrolytes is important for the further commercial application of LiFePO_(4) batteries.This paper reviews the key factors for the poor low-temperature performance of LiFePO_(4)-based batteries and the research progress of low-temperature electrolytes.Spe-cial attention is paid to electrolyte components,including lithium salts,cosolvents,additives,and the development of new electrolytes.The factors affecting the anode are also analyzed.Finally,according to the current research progress,some viewpoints are summarized to provide suitable modification methods and research suggestions for improving the practicability of LiFePO_(4)/C commercial batteries at low temperat-ures in the future.

关键词： lithium-ion batteries LiFePO_(4) electrolytes low-temperature electrochemical performance

Coral-like and binder-free carbon nanowires for potassium dual-ion batteries with superior rate capability and long-term cycling life

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Green Energy & Environment 2023年第2期8卷 548-558页

作者： Min Wang Qirong Liu Guangming Wu jianmin ma Yongbing Tang Functional Thin Films Research Center Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055China School of Physics and Electronics Hunan UniversityChangsha410082China Key Laboratory of Advanced materials Processing&Mold Ministry of EducationZhengzhou UniversityZhengzhou450002China Guangdong-Hong Kong-macao Joint Laboratory of Human-machine Intelligence-Synergy Systems Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055China

Owing to the advantages of high operating voltage,environmental benignity,and low cost,potassium-based dual-ion batteries(KDIBs)have been considered as a potential candidate for large-scale energy storage.However,KDIBs generally suffer from poor cycling performance and unsatisfied capacity,and inactive components of conductive agents,binders,and current collector further lower their overall capacity.Herein,we prepare coral-like carbon nanowres(CCNWs)doped with nitrogen as a binder-free anode material for K^(+)-ion storage,in which the unique coral-like porous nanostructure and amorphous/short-range-ordered composite feature are conducive to enhancing the structural stability,to facilitating the ion transfer and to boosting the full utilization of active sites during potassiation/de-potassiation process.As a result,the CCNW anode possesses a hybrid K^(+)-storage mechanism of diffusive behavior and capacitive adsorption,and stably delivers a high capacity of 276 mah g^(-1)at 50 ma g^(-1),good rate capability up to 2 A g^(-1),and long-term cycling stability with 93%capacity retention after 2000 cycles at 1 A g^(-1).Further,assembling this CCNW anode with an environmentally benign expanded graphite(EG)cathode yields a proof-of-concept KDIB,which shows a high specific capacity of 134.4 mah g^(-1)at 100 ma g^(-1),excellent rate capability of 106.5 mah g^(-1)at 1 A g^(-1),and long-term cycling stability over 1000 cycles with negligible capacity loss.This study provides a feasible approach to developing high-performance anodes for potassium-based energy storage devices.

关键词： Carbon nanowires Binder-free K-ion Dual-ion batteries Structural stability

Electrolyte chemistry for lithium metal batteries

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Science China Chemistry 2022年第5期65卷 840-857页

作者： Junda Huang Fang Li Mingguang Wu Huaping Wang Shihan Qi Gaoxue Jiang Xiu Li jianmin ma School of materials and Energy University of Electronic Science and Technology of ChinaChengdu 610054China School of Physics and Electronics Hunan UniversityChangsha 410082China

Li metal batteries(LMBs) are considered as the next-generation energy storage systems because of their high energy density.However,due to the high reactivity of Li metal with the electrolyte,the unwanted safety concerns inhibit the practical application of LMBs.To overcome these drawbacks,exploring suitable electrolytes is considered to be urgent.Great effort has been made to modify electrolytes to achieve the stability of LMBs.In this review,different kinds of LMBs are firstly introduced.Then,the regulation of electrode–electrolyte interphase is discussed.Next,recent advances on the functional electrolytes for LMBs are overviewed,including fireproof electrolytes,extreme-temperature electrolytes and high-voltage electrolytes.Finally,the perspective on the development of future electrolytes is provided.

关键词： lithium metal batteries electrode–electrolyte interphase fireproof electrolytes extreme-temperature electrolytes high-voltage electrolytes

Different surface modification methods and coating materials of zinc metal anode

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Journal of Energy Chemistry 2022年第3期31卷 397-412,I0011页

作者： Feng Tao Yong Liu Xinyuan Ren Jing Wang Yazhou Zhou Yingjie Miao Fengzhang Ren Shizhong Wei jianmin ma Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New materials and Advanced Processing Technology Henan Key Laboratory of Non-Ferrous Materials Science&Processing TechnologySchool of Materials Science and EngineeringHenan University of Science and TechnologyLuoyang 471023HenanChina National Joint Engineering Research Center for Abrasion Control and Molding of Metal materials Henan Key Laboratory of High-Temperature Structural and Functional MaterialsHenan University of Science and TechnologyLuoyang 471003HenanChina School of Art&Design Henan University of Science and TechnologyLuoyang 471023HenanChina School of Physics and Electronics Hunan UniversityChangsha 410082HunanChina School of materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina

Rechargeable aqueous Zn-ion batteries(AZIBs)are one of the most promising energy storage devices for large-scale energy storage owing to their high specific capacity,eco-friendliness,low cost and high safety.Nevertheless,zinc metal anodes suffer from severe dendrite growth and side reactions,resulting in the inferior electrochemical performance of AZIBs.To address these problems,surface modification of zinc metal anodes is a facile and effective method to regulate the interaction between the zinc anode and an electrolyte.In this review,the current challenges and strategies for zinc metal anodes are presented.Furthermore,recent advances in surface modification strategies to improve their electrochemical performance are concluded and discussed.Finally,challenges and prospects for future development of zinc metal anodes are proposed.We hope this review will be useful for designing and fabricating highperformance AZIBs and boosting their practical applications.

关键词： Zn-ion batteries Zinc metal anode Surface modification Solvent casting method Wet chemistry method