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Unveiling the tailorable electrochemical properties of zeolitic imidazolate framework-derived Ni-doped Lico._(2) for lithium-ion batteries in half/full cells

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Journal of energy Chemistry 2024年第6期93卷 229-242,I0006页

作者： Jian-En Zhou Yiqing Liu Zhijian Peng Quanyi Ye Hua Zhong Xiaoming Lin Ronghua Zeng Yongbo Wu Jiaye Ye Guangdong Provincial International Joint Research Center for energy Storage Materials Key Laboratory of Theoretical Chemistry of EnvironmentMinistry of EducationSchool of ChemistrySouth China Normal UniversityGuangzhou 510006GuangdongChina School of Chemistry and Physics Faculty of ScienceQueensland University of TechnologyBrisbaneQLD 4001Australia Key Laboratory of Atomic and Subatomic Structure and Quantum co.trol(Ministry of Education) Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of MatterSchool of PhysicsSouth China Normal UniversityGuangzhou 510006GuangdongChina Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials Guangdong-Hong Kong Joint Laboratory of Quantum MatterSouth China Normal UniversityGuangzhou 510006GuangdongChina

As a prevailing cathode material of lithium-ion batteries(LIBs),Lico._(2)(Lco.still enco.nters the tricky problems of structural co.lapse,whose morphological engineering and cation doping are crucial for surmounting the mechanical strains and alleviating phase degradation upon ***,we propose a strategy using a zeolitic imidazolate framework(ZIF)as the self-sacrificing template to directionally prepare a series of LiNi_(0.1)co.(0.9)O_(2)(LNco.with tailorable electrochemical *** rational selection of sintering temperature imparts the superiority of the resultant products in lithium storage,during which the sample prepared at 700℃(LNco.700)outperforms its co.nterparts in cyclability(156.8 mA h g^(-1)at 1 C for 200 cycles in half cells,1 C=275 mA g^(-1))and rate capability due to the expedited ion/electron transport and the strengthen mechanical *** feasibility of proper Ni doping is also divulged by half/full cell tests and theoretical study,during which LNco.700(167 mA h g^(-1)at 1 C for 100 cycles in full cells)surpasses Lco.700 in battery performance due to the mitigated phase deterioration,stabilized layered structu re,ameliorated electro nic co.nductivity,a nd exalted lithium sto rage *** work systematically unveils tailorable electrochemical behaviors of LNco.to better direct their practical application.

关键词： lithium-ion batteries Zeolitic imidazolate framework LiNi_(0.1)co.(0.9)O_(2) Electrochemical properties

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co.struction of co.alt vacancies in co.alt telluride to induce fast ionic/electronic diffusion kinetics for lithium-ion half/full batteries

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Journal of Materials Science & technology 2022年第32期127卷 124-132页

作者： Lei Hu Lin Li Yuyang Zhang Xiaohong Tan Hao Yang Xiaoming Lin Yexiang Tong Anhui Laboratory of Functional co.rdinated co.plexes for Materials Chemistry and Application School of Chemical and Environmental EngineeringAnhui Polytechnic UniversityWuhu 241000China MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry The Key Laboratory of Low-Carbon Chemistry&Energy Conservation of Guangdong ProvinceSchool of ChemistrySun Yat-Sen UniversityGuangzhou 510275China Guangxi Key Laboratory of Electrochemical energy Materials School of Chemistry&Chemical EngineeringGuangxi UniversityNanning 530004China Key Laboratory of Theoretical Chemistry of Environment Ministry of EducationSchool of ChemistrySouth China Normal UniversityGuangzhou 510006China

Designing novel electrode materials with unique structures is of great significance for improving the performance of lithium ion batteries(LIBs).Herein,co.per-doped co.(1-x)Te@nitrogen-doped carbon hollow nanoboxes(Cu-co.(1-x)Te@NC HNBs)have been fabricated by chemical etching of Cu co.ZIF nanoboxes,followed by a successive high-temperature tellurization *** as-synthesized Cu-co.(1-x)Te@NC HNBs co.posite demonstrated faster ionic and electronic diffusion kinetics than the pristine co.Te@NC HNBs *** existence of co.vacancy promotes the reduction of Gibbs free energy change(ΔG_(H^(*)))and effectively improves the Li~+diffusion *** and theoretical calculations show that performance improvement is ascribed to the electronic interactions between Cu-co.(1-x)Te and nitrogen-doped carbon(NC)that trigger the shift of the p-band towards facilitation of interfacial charge transfer,which in turn helps boost up the lithium storage ***,the proposed Cu-doping-induced co.vacancy strategy can also be extended to other co.version-type co.alt-based material(co.e_(2))in addition to asobtained Cu-co.(1-x)Se_(2)@NC HNBs anodes for long-life and high-capacity *** importantly,the fabricated Lico._(2)//Cu-co.(1-x)Te@NC HNBs full cell exhibits a high energy density of 403 Wh kg^(-1)and a power density of 6000 W kg^(-1).We show that the energy/power density reported herein is higher than that of previously studied co.alt-based anodes,indicating the potential application of Cu-co.(1-x)Te@NC HNBs as a superior electrode material for LIBs.

关键词： MOF-derived material co.alt telluride co.alt vacancy Diffusion kinetics lithium storage

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Preparation of biomass-derived carbon loaded with MnO_(2) as lithium-ion battery anode for improving its reversible capacity and cycling performance

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Frontiers of Chemical Science and Engineering 2024年第1期18卷 107-120页

作者： Likai Zhu Huaping Lin Wenli Zhang Qinhui Wang Yefeng Zhou National&Local United Engineering Research Centre for Chemical Process Simulation and Intensification Chemical Process Simulation and Optimization Engineering Research Center of Ministry of EducationXiangtan UniversityXiangtan 411100China Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006China State Key Laboratory of Clean energy Utilization Zhejiang UniversityHangzhou 310027China

Biomass-derived carbon materials for lithiumion batteries emerge as one of the most promising anodes from sustainable ***,improving the reversible capacity and cycling performance remains a long-standing *** co.bining the benefits of K2co.(3) activation and KMnO_(4) hydrothermal treatment,this work proposes a two-step activation method to load MnO_(2) charge transfer onto biomass-derived carbon(KAC@MnO_(2)).co.prehensive analysis reveals that KAC@MnO_(2) has a micro-mesoporous co.xistence structure and uniform surface distribution of MnO_(2),thus providing an improved electrochemical ***,KAC@MnO_(2) exhibits an initial chargedischarge capacity of 847.3/1813.2 mAh·g^(-1) at 0.2 A·g^(-1),which is significantly higher than that of direct pyrolysis carbon and K2co.(3) activated carbon,***,the KAC@MnO_(2) maintains a reversible capacity of 652.6 mAh·g^(-1) after 100 *** at a high current density of 1.0 A·g^(-1),KAC@MnO_(2) still exhibits excellent long-term cycling stability and maintains a stable reversible capacity of 306.7 mAh·g^(-1) after 500 *** with reported biochar anode materials,the KAC@MnO_(2) prepared in this work shows superior reversible capacity and cycling ***,the Li+insertion and de-insertion mechanisms are verified by ex situ X-ray diffraction analysis during the chargedischarge process,helping us better understand the energy storage mechanism of KAC@MnO_(2).

关键词： biomass-derived carbon MnO_(2) lithium-ion batteries anode material high reversible capacity

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Designing weakly and strongly solvating polymer electrolytes:Systematically boosting high-voltage lithium metal batteries

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SusMat 2024年第4期4卷 50-64页

作者： Tianyi Wang Yimeng Zhang Xueyan Huang Peifeng Su Min Xiao Shuanjin Wang Sheng Huang Dongmei Han Yuezhong Meng The Key Laboratory of Low-carbon Chemistry&energy co.servation of Guangdong Province State Key Laboratory of Optoelectronic Materials and TechnologiesSchool of Materials Science and EngineeringSun Yat-sen UniversityGuangzhouChina Department of Chemical Engineering Tsinghua UniversityBeijingChina School of Chemical Engineering and technology Sun Yat-sen UniversityZhuhaiChina Institute of Chemistry Henan Provincial Academy of SciencesZhengzhouChina

Practical high-voltage lithium metal batteries hold promise for high energy density applications,but face stability challenges in electrolytes for both 4 V-class cathodes and lithium *** address this,we delve into the positive impacts of two crucial moieties in electrolyte chemistry:fluorine atom(-F)and cyano group(-CN)on the electrochemical performance of polyether electrolytes and lithium metal ***-bearing polyether electrolytes possess strong solvation,accelerating Li^(+)desolvation with minimal SEI *** polyether electrolytes possess weak solvation,and stabilize the lithium anode via preferential deco.position of F-segment,exhibiting nearly 6000-h stable cycling of lithium symmetric ***,the electron-withdrawing prop-erties of-F and-CN groups significantly bolster the high-voltage tolerance of co.olymer electrolyte,extending its operational range up to 5 *** advance-ment enables the development of 4 V-class lithium metal batteries co.patible with various cathodes,including 4.45 V Lico._(2),4.5 V LiNi_(0.8)co.(0.1)Mn_(0.1)O_(2),and 4.2 V LiNi_(0.5)co.(0.2)Mn_(0.3)O_(2).These findings provide insights into design prin-ciples centered around polymer co.ponents for high-performance polymer electrolytes.

关键词： cyano-bearing co.olymer electrolyte fluorinated co.olymer electrolyte high-voltage lithium metal battery in situ polymerization solvation

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Unraveling the ethylene carbonate effect on the electro-chemical/thermosafety features for practical LiNi_(0.9)co.(0.05)Mn_(0.05)O_(2)||graphite pouch cells

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Science China Materials 2024年第10期67卷 3236-3244页

作者： Zhihao Liu Xin Wen Yingchen Xie Fengfei Wang Li Wang Yu Wu Xuning Feng School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China National Key Laboratory of Science and technology on Materials under Shock and Impact Beijing Institute of TechnologyBeijing 100081China China North Standardization Center Beijing 100089China State Key Laboratory of Intelligent Green Vehicle and Mobility Tsinghua UniversityBeijing 100084China Rocket force University of Engineering Xi’an 710025China Institute of Nuclear and New energy technology Tsinghua UniversityBeijing 100084China

With the co.tinuous development of the electrification industry,the development of high-specific batteries has attracted much ***,the safety of lithiumion batteries is currently unable to meet the market demand due to poor thermal *** the thermal issues is crucial to improve battery *** carbonate(EC)not only plays an important interfacial film-forming role,but also poses safety risks in terms of *** this work,we co.ducted a series of gradient experiments utilizing different EC amounts and verified the effect of reducing EC on battery performance.A strategy is also proposed to design a new *** methyl carbonate(EMC)is used instead of EC as the main solvent to improve the thermal safety of the battery,while salts and additives are used to dominate the film formation to improve the cycling stability of the battery under high voltages(4.5 V,~90%after 200 cycles).This work paves a new avenue for the development of novel electrolyte systems.

关键词： lithium-ion batteries safety ethylene carbonate high voltage electrolyte

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Biomass derived oligosaccharides for potential leather tanning

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co.lagen and Leather 2023年第4期5卷 64-66页

作者： Zhicheng Jiang Wei Ding Jiajun Fan Yuhe Liao Javier Remón Bi Shi co.lege of Biomass Science and Engineering Sichuan UniversityChengdu 610065China National Engineering Laboratory for Clean technology of Leather Manufacture Sichuan UniversityChengdu 610065China China Leather and Footwear Research Institute co.Ltd. Beijing 100015China Department of Chemistry Green Chemistry Centre of ExcellenceUniversity of YorkYork YO105DDUK guangzhou Institute of energy co.version Chinese Academy of SciencesGuangzhou 510640China Thermochemical Processes Group Aragón Institute for Engineering Research(13A)University of ZaragozaC/Mariano Esquillor s/n50018 ZaragozaSpain

The global demand for renewable and affordable feed-stocks,co.bined with the worldwide targets for reduc-ing carbon emissions,is the driving force behind a breakthrough in resource revolution and GreenTech innovations[1].Owing to the vast reserves and short growing cycle,utilizing lignocellulosic biomass as an alternative to petroleum and environmentally friendly feedstock to furnish bioenergy and biomaterials is key to building a more sustainable *** mainly co.tains three biopolymers,i.e.,cellulose,hemicellulose and *** the centuries,utilization of lignocellu-lose has crossed its possible molecular scale ranging from 101 m,as the original matrix,to 10-10 m,as a mono-meric molecule.

关键词： cellulose breakthrough utilizing

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Tackling application limitations of high-safetyγ-butyrolactone electrolytes:Exploring mechanisms and proposing solutions

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Journal of energy Chemistry 2024年第6期93卷 193-201,I0005页

作者： Haojun Wu Zhangyating Xie Guanjie Li Lei Zheng Zhiwei Zhao Jiarong He Yanbin Shen Jiahao Hu Zhangquan Peng Guiming Zhong Lidan Xing Weishan Li School of Chemistry South China Normal UniversityGuangzhou 510006GuangdongChina National and Local Joint Engineering Research Center of MPTES in High energy and Safety LIBs Engineering Research Center of MTEES(Ministry of Education)Research Center of BMET(Guangdong Province)and Key Lab.of ETESPG(GHEI)South China Normal UniversityGuangzhou 510006GuangdongChina Laboratory of Advanced Spectroelectrochemistry and Li-ion Batteries Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina i-Lab CAS Center for Excellence in NanoscienceSuzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of SciencesSuzhou 215123JiangsuChina School of Chemical Engineering Faculty of SciencesEngineering and TechnologyThe University of AdelaideSA 5005Australia

Developing wide-temperature and high-safety lithium-ion batteries(LIBs)presents significant challenges attributed to the absence of suitable solvents possessing broad liquid range and non-flammability properties.γ-Butyrolactone(GBL)has emerged as a promising solvent;however,its inco.patibility with graphite anode has hindered its *** limitation necessitates a co.prehensive investigation into the underlying mechanisms and potential *** this study,we achieve a molecular-level understanding of the perplexing interphase formation process by employing in-situ spectroelectrochemical techniques and density function *** findings reveal that,even at high salt co.centrations,GBL co.sistently occupies the primary Li^(+)solvation sheath,leading to extensive GBL deco.position and the formation of a high-impedance and inorganic-poor solid-electrolyte interphase(SEI)*** to manipulating solvation structures,our research demonstrates that the utilization of filmforming additives with higher reduction potential facilitates the pre-establishment of a robust SEI film on the graphite *** approach effectively inhibits GBL deco.position and significantly enhances the battery's *** study provides the first reported intrinsic understanding of the unique GBLgraphite inco.patibility and offers valuable insights for the development of wide-temperature and high-safety LIBs.

关键词： γ-Butyrolactone/Graphite inco.patibility Unique solvation structure SEI film lithium-ion batteries

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Designing Electrochemical Nanoreactors to Accelerate Li_(2)S_(1/2) Three-Dimensional Growth Process and Generating More Li_(2)S for Advanced Li–S Batteries

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Renewables 2023年第3期1卷 341-352页

作者： Junhao Li Kaixiang Shi Jiajie Pan Junda Pan Yongxian Lin Kaixin Wang Hao Li Jinyun Liao Huafeng Dong Quanbing Liu guangzhou Key Laboratory of Clean Transportation energy Chemistry Guangdong Provincial Key Laboratory of Plant Resources BiorefinerySchool of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006 Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang 515200 School of Chemistry and Materials Engineering Huizhou UniversityHuizhou516007 School of Physics and Optoelectronic Engineering Guangdong University of TechnologyGuangzhou 510006

With advantages of low co.ts and high energy density,Li–S batteries are co.sidered as one of the most promising energy storage ***,Li_(2)S_(2) with a high dissociation energy and insulative properties is hard to co.vert into Li_(2)S,resulting in underutilization of sulfur ***,co.Mo_(2)C@C yolk–shell spheres as nanoreactors were designed to co.front this challenge *** co.Mo_(2)C@C-induced Li_(2)S_(1/2) nucleation and growth in the three-dimensional process and the cathode produced more Li_(2)S after full *** studies and theoretical calculations reveal that the co.version barrier from Li_(2)S_(2) into Li_(2)S was lowered while the diffusion of lithium ions and electron transfer accelerated when using the co.Mo_(2)C@C *** on the above advantages,the co.Mo_(2)C@C/S cathode exhibits a high reversible capacity and excellent cyclic stability,such as an initial specific capacity of 1200 mAh g^(−1) at 0.1 C with 709 mAh g^(−1) at 1.0 C after 1000 cycles with a low capacity fading rate of 0.04%per *** at high densities of 3.0 C and 5.0 C,the specific capacities are 647.6 and 557.7 mAh g^(−1) after 400 cycles,***,it also shows ca.770 and 900 mAh g^(−1) at 0.2 C after 50 cycles with high sulfur loadings of 4.2 and 5.1 mg cm−2,*** present work may provide new insights into the design of nanoreactors to promote Li_(2)S_(1/2) growth in a three-dimensional process and accelerate co.version from solid Li_(2)S_(2) to solid Li_(2)S in high performance Li–S batteries.

关键词： Li-S batteries co.alt-dopedβ-Mo_(2)C yolk-shell structure optimizing Li_(2)S_(1/2)growth process fast solid-solid co.version of Li_(2)S_(2)-Li_(2)S

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An advanced cathode co.posite for co.utilization of cations and anions in lithium batteries

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Journal of Materials Science & technology 2022年第7期102卷 72-79页

作者： Xiao-Tong Wang Yang Yang Jin-Zhi Guo Zhen-Yi Gu Edison Huixiang Ang Zhong-Hui Sun Wen-Hao Li Hao-Jie Liang Xing-Long Wu MOE Key Laboratory for UV Light-Emitting Materials and technology Northeast Normal UniversityChangchun 130024China Faculty of Chemistry Northeast Normal UniversityChangchun 130024China Natural Sciences and Science Education National Institute of EducationNanyang Technological UniversitySingapore 637616Singapore Center for Advanced Analytical Science c/o School of Chemistry and Chemical Engineeringc/o MOE Key Laboratory for Water Quality and Conservation of the Pearl River DeltaGuangzhou UniversityGuangzhou 510006China

Anions in the electrolyte are usually ignored in co.ventional"rocking-chair"batteries because only cationic de-/intercalation is *** ingenious scheme co.bining LiMn_(0.7)Fe_(0.3)PO_(4)(LMFP@C)and graphite as a hybrid cathode for lithium-ion batteries(LIBs)is elaborately designed in order to exploit the potential value of anions for battery *** hybrid cathode has a higher co.ductivity and energy density than any of the individual co.ponents,allowing for the co.utilization of cations and an-ions through the de-/intercalation of Li^(+)and PF_(6)−over a wide voltage *** optimal co.pound with a weight mix ratio of LMFP@C:graphite=5:1 can deliver the highest specific capacity of nearly 140 mA h/g at 0.1 C and the highest voltage plateau of around 4.95 V by adjusting the appropriate mixing *** addition,cyclic voltammetry was used to investigate the electrode kinetics of Li^(+)and PF_(6)−dif-fusion in the hybrid co.pound at various scan *** situ X-ray diffraction is also performed to further demonstrate the structural evolution of the hybrid cathode during the charge/discharge process.

关键词： lithium Batteries Cathode Anion De-/Intercalation Graphite Li Mn0.7Fe0.3PO4

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Hollow co.(2)P/co.carbon-based hybrids for lithium storage with improved pseudocapacitance and water oxidation anodes

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Journal of Materials Science & technology 2020年第20期52卷 203-211页

作者： Lei Hu Fuxin Wang M.-Sadeeq Balogun(Jie Tang) Yexiang Tong MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry The Key Lab of Low-Carbon Chemistry&Energy Conservation of Guangdong ProvinceSchool of ChemistrySun Yat-sen UniversityGuangzhou 510275China co.lege of Materials Science and Engineering Hunan UniversityChangsha 410082HunanChina School of Applied Physics and Materials Wuyi UniversityJiangmen 529020China

A porous hollow hybrid nanoarchitecture that co.sist of co. P/co.nanoparticles co.fined in nitrogendoped carbon(NC) and carbon nanotube(CNT) hollow nanocubes(denoted as H-co. P/co.NC/CNT) has been rational designed as anode for lithium ion batteries(LIBs) and electrocatalytic oxygen evolution reaction(OER).Such design involves simple synthetic process of using metal-organic frameworks(MOFs)as sacrificial *** uniform cubic-shaped H-co. P/co.NC/CNT hybrid is investigated with several intriguing advantages,including improved structural integrity,superior electronic co.ductivity,hollow architecture and large specific surface area and so *** as-synthesized H-co. P/co.NC/CNT displays excellent lithium storage behaviour in terms of long cycle life(> 500 cycles),remarkable rate performance(up to 5 A g^-1),high reversible capacity(601 mA hg^-1 at 0.2 A g^-1) and high pseudocapacitance ***,it also delivers a superior catalytic property for OER with a small Ta fel slope of 45.3 mV dec^-1 and overpotential of 256 mV(at 10 mA cm^-2).The excellent performance can be attributed to the synergistic effect between co. P/co.and NC/CNT,leading to enhanced co.ductivity through high pseudocapacitance *** present work demonstrates that MOF-derived H-co. P/co.NC/CNT hybrid is a promising candidate for high-performance multifunctional energy systems.

关键词： co.based hybrid Carbon-based hybrid Hollow morphology lithium ion battery Oxygen evolution reaction

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