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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 ***,it is still necessary to deal with the challenges in poor cyclic and thermal stability before realizing practical application where cycling life is *** many improved strategies,mechanical and chemical stability for the electrode electrolyte interface plays a key role in addressing these ***,extensive effort has been made to address the challenges of electrode-electrolyte *** 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 ***,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

Diethyl phenylphosphonite contributing to solid electrolyte interphase and cathode electrolyte interphase for lithium metal batteries

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Journal of Energy Chemistry 2021年第12期30卷 566-573,I0013页

作者： Chunxia Miao shihan qi Kang Liang Yanli qi Junda Huang Mingguang Wu Hongshun Zhao Jiandong Liu Yurong Ren Jianmin Ma School of Materials Science and Engineering Jiangsu Province Engineering Research Center of Intelligent Manufacturing Technology for the New Energy Vehicle Power BatteryChangzhou UniversityChangzhou 213164JiangsuChina School of Physics and Electronics Hunan University Changsha 410082HunanChina School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina

Lithium metal batteries have obtained increasing interest due to their high specific ***,the growth of lithium dendrites brings safety risks to batteries and further deteriorates the ***,we explore diethyl phenylphosphonite(DEPP) as the electrolyte additive to alleviate this *** can be preferentially decomposed than carbonate solvents to form the stable interface between electrolyte and lithium anode for inhibiting the dendrite *** expected,the symmetrical LiIILi cells could achieve a stable cycling performance with 200 h at 1 mA cm^(-2).Moreover,DEPP can be preferentially oxidized on the surface of lithium cobalt oxides(LiCoO_(2)) to form a dense cathode electrolyte interphase(CEI) film for suppressing the continuous oxidative decomposition of the electrolyte and eliminating the adverse effects of HF on the *** endows LiCoO_(2) IILi full battery with the enhanced cycling and rate performance.

关键词： Lithium metal batteries Electrolyte additive Diethyl phenylphosphonite Lithium dendrites Capacity retention

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 ***,due to the high reactivity of Li metal with the electrolyte,the unwanted safety concerns inhibit the practical application of *** overcome these drawbacks,exploring suitable electrolytes is considered to be *** effort has been made to modify electrolytes to achieve the stability of *** this review,different kinds of LMBs are firstly ***,the regulation of electrode–electrolyte interphase is ***,recent advances on the functional electrolytes for LMBs are overviewed,including fireproof electrolytes,extreme-temperature electrolytes and high-voltage ***,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

Cotton-derived oxygen/sulfur co-doped hard carbon as advanced anode material for potassium-ion batteries

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Chinese Chemical Letters 2020年第1期31卷 217-222页

作者： Baolin Xu shihan qi Fang Li Xiaoxin Peng Jinfeng Cai Jiaojiao Liang Jianmin Ma School of Physics and Electronics Hunan UniversityChangsha 410082China Yiyang Wanjingyuan Electronics Co. Ltd.Yiyang 413000China College of Traffic Engineering Hunan University of TechnologyZhuzhou 412008China Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationZhengzhou UniversityZhengzhou 450002China State Key Lab of Chemical Engineering School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072 China

Hard carbon is regarded as promising anode materials for potassium-ion batteries(KIBs)owing to their low price and easy ***,the limited rate capability still needs to be ***,we demonstrate the fabrication of oxygen/sulfur co-doped hard carbon through a facile hydrolyzationsulfuration process of skimmed *** simultaneous dopants significantly improve potassium ion diffusion *** served as the anode for KIBs,this hydrolyzed hard carbon delivered a high reversible capacity(409 mAh/g at 0.1 A/g),superior rate capability(135 mAh/g at 2 A/g)and excellent cyclability(about 120 mAh/g overt 500 cycles at 2 A/g).This work provides a facile strategy to prepare low-cost doped-hard carbon with superior potassium storage property.

关键词： Carbon Doping Anode Potassium-ion battery Biomass

Additive regulating Li+ solvation structure to construct dual LiF-rich electrode electrolyte interphases for sustaining 4.6 V Li||LiCoO2 batteries

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Chinese Chemical Letters 2024年第12期35卷 313-316页

作者： Xi Tang Chunlei Zhu Yulu Yang shihan qi Mengqiu Cai Abdullah N.Alodhayb Jianmin Ma School of Physics and Electronics Hunan University Department of Physics and Astronomy College of Science King Saud University

The battery energy density can be improved by raising the operating voltage,however,which may lead to rapid capacity decay due to the continuous electrolyte decomposition and the thickening of electrode electrolyte *** address these challenges,we proposed tripropyl phosphate （TPP） as an additive-regulating Li+solvation structure to construct a stable Li F–rich electrode carbonate-based electrolyte interphases for sustaining 4.6 V Li||*** optimized interphases could help reduce the resistance and achieve better rate performance and cycling *** expected,the Li||LiCoO2battery retained 79.4%capacity after 100 cycles at 0.5 C,while the Li||Li symmetric cell also kept a stable plating/stripping process over 450 h at the current density of 1.0 mA/cm2with a deposited amount of0.5 mAh/cm2.

关键词： Cathode electrolyte interphase Electrolyte additive Lithium metal batteries Solid electrolyte interphase Solvation structure

Structurally tunable characteristics of ionic liquids for optimizing lithium plating/stripping via electrolyte engineering

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Journal of Energy Chemistry 2021年第12期30卷 270-277,I0006页

作者： shihan qi Jiandong Liu Jian He Huaping Wang Mingguang Wu Daxiong Wu Junda Huang Fang Li Xin Li Yurong Ren Jianmin Ma School of Physics and Electronics Hunan UniversityChangsha 410082HunanChina School of Materials Science and Engineering Jiangsu Collaborative Innovation Center of Photovoltaic Science and EngineeringChangzhou UniversityChangzhou 213164JiangsuChina

Electrolyte chemistry offers the opportunity to regulate the solid electrolyte interphase(SEI) and Li^(+)solvation,which is considered to be crucial to the growth of lithium crystals for safe lithium metal batteries(LMBs).Structurally tunable characteristics of ionic liquids(ILs) from anion type,cationic substituent chain length and cationic substituents,will contribute this ***,we explore the influence mechanism of imidazole-based ILs as electrolyte additives on Li+solvation and the formation of *** can participate into the formation of efficient SEI,together with cathode electrolyte interphase(CEI).Moreover,ILs can also regulate the sheath structure of Li^(+)solvation,to fasten the kinetics of ***,the imidazole-based cations with long alkyl chain can form an electrostatic shield around newly formed Li nucleus,and suppress further Li plating at this *** the optimized condition,the 1-octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide([OMIm]TFSI) additive shows the best ability to enhance the electrochemical performance,endowing the Li||Li symmetric cell with a stable life(over800 h) at 0.5 mA cm^(-2) and the Li||LiNi_(0.6)Mn_(0.2)Co_(0.2)O_(2)(NMC622) full cell with a high capacity of 141.7 mAh g^(-1) after 200 cycles at 0.5 C.

关键词： Electrolyte chemistry Ionic liquids Solvation structure Lithium anode Solid electrolyte interphase

Porous surfur-doped hard carbon for excellent potassium storage

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Chinese Chemical Letters 2020年第1期31卷 223-226页

作者： Xuan Xie shihan qi Daxiong Wu Huaping Wang Fang Li Xiaoxin Peng Jinfeng Cai Jiaojiao Liang Jianmin Ma School of Physics and Electronics Hunan UniversityChangsha 410082China Yiyang Wanjingyuan Electronics Co. Ltd.Yiyang 413000China College of Traffic Engineering Hunan University of TechnologyZhuzhou 412008China Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationZhengzhou UniversityZhengzhou 450002China State Key Lab of Chemical Engineering School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China

Hard carbon is promising anode for potassium-ion batteries(PIBs),however,the poor rate capability hinders its development as potential *** address this question,we design a sulfur-doped porous hard carbon(S-HC)for PIBs through the combination of structural design and composition *** as-designed S-HC exhibits a long cycling life with^191 mAh/g after 300 cycles at 1 A/g,and an excellent rate capability with^100 mAh/g at 5 A/g,which was attributed to its structural characteristics and *** S-HC demonstrates to be promising anode in the future.

关键词： Porous carbon Sulfur-doping Hard carbon Anode Potassium-ion battery

Breakthrough on understanding the solid electrolyte interphase

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Science Bulletin 2022年第10期67卷 1013-1014页

作者： shihan qi Xiu Li Jianmin Ma School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731China

Solid electrolyte interphase(SEI)is derived from electrolyte decomposition,and considered as extremely crucial interface,which has a huge influence on the reversible operation of lithium-ion batteries(LIBs)and lithium metal batteries(LMBs)[1-3],e.g.,the irreversible capacity,internal resistance,Coulombic efficiency,and cycling life of batteries[4-10].However,our knowledge on SEI components and structures is still limited although SEI has been studied for several decades.

关键词： electrolyte lithium cycling

Pseudo-concentrated electrolytes for lithium metal batteries

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eScience 2022年第5期2卷 557-565页

作者： Huaping Wang Jiandong Liu Jian He shihan qi Mingguang Wu Fang Li Junda Huang Yun Huang Jianmin Ma School of Physics and Electronics Hunan UniversityChangsha410082China

Lithium metal batteries suffer from short lifespans and low Coulombic efficiency (CE) due to the high reactivity of Li and the poor stability of the solid electrolyte interphase (SEI). Herein, we propose the concept of a pseudo-concentrated electrolyte (PCE) induced by an electron-deficient additive (4-pyridylboronic acid;4-PBA) to form a robust, LiF-rich SEI, thus addressing the above issues. Molecular dynamics simulations confirm that 4-PBA can increase the coordination number of PF6^(-) anions in the Li+ solvation sheath to achieve pseudo-concentrated LiPF6 in the electrolyte. Moreover, the 4-PBA can scavenge harmful PF5 decomposed from LiPF6 to stabilize the LiF-rich SEI. The resulting robust LiF-rich SEI promotes Li growth along the SEI/Li interface and represses the growth of Li dendrites. Thus, excellent performance is achieved, with a high CE of 97.1% for a Li||Cu cell at 1.0 mA cm^(−2), and over 950 cycles at 0.5 mA cm^(−2) for Li||Li symmetric cells with 1.0 wt% 4-PBA electrolyte. Meanwhile, the resulting stable boron-containing cathode electrolyte interphase enables Li||LiNi0·6Co0·2Mn0·2O_(2) (NCM622) cells to achieve excellent stability, with a capacity retention of 86.9% after 200 cycles.

关键词： Lithium metal batteries Pseudo-concentrated electrolyte Solid electrolyte interphase Solvation structure 4-Pyridylboronic acid

2020 roadmap on two-dimensional materials for energy storage and conversion

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Chinese Chemical Letters 2019年第12期30卷 2053-2064页

作者： Baolin Xu shihan qi Mengmeng Jin Xiaoyi Cai Linfei Lai Zhouting Sun Xiaogang Han Zifeng Lin Hui Shao Peng Peng Zhonghua Xiang Johan E.ten Elshof Rou Tan Chen Liu Zhaoxi Zhang Xiaochuan Duan Jianmin Ma School of Physics and Electronics Hunan UniversityChangsha 410082China Key Laboratory of Flexible Electronics&Institute of Advanced Materials(IAM) Jiangsu National Synergistic Innovation Center for Advanced Materials(SICAM)Nanjing Tech UniversityNanjing 210009China School of Physical and Mathematical Sciences Nanyang Technological UniversitySingapore 637371Singapore State Key Lab of Electrical Insulation and Power Equipment Xi'an Jiaotong UniversityXi'an 710049China College of Materials Science and Engineering Sichuan UniversityChengdu 610065China UniversitéPaul Sabatier Laboratoire CIRIMAT UMR CNRS 5085Toulouse 31062France Réseau sur le Stockage Electrochimique de l’Energie(RS2E) CNRS 3459AmiensFrance State Key Laboratory of Organic–Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029China University of Twente AE Enschede 7500the Netherlands Pen-Tung Sah Institute of Micro-Nano Science and Technology Xiamen UniversityXiamen 361005China Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationZhengzhou UniversityZhengzhou 450002China

Energy storage and conversion have attained significant intere st owing to its important applications that reduce CO2 emission through employing green *** promising technologies are included metalair batteries,metal-sulfur batteries,metal-ion batteries,electrochemical capacitors,***,metal elements are involved with lithium,sodium,and *** these devices,electrode materials are of importance to obtain high ***-dimensional(2 D) materials are a large kind of layered structured materials with promising future as energy storage materials,which include graphene,black phosporu s,MXenes,covalent organic frameworks(COFs),2 D oxides,2 D chalcogenides,and *** progress has been achieved to go ahead for 2 D materials in energy storage and *** researchers will join in this research *** the background,it has motivated us to contribute with a roadmap on ’two-dimensional materials for energy storage and conversion.

关键词： Graphene Black phosphorus MXenes Covalent organic frameworks Oxides Chalcogenides Metal-air batteries Metal-sulfur batteries Metal-ion batteries Electrochemical capacitors