检索结果-南通市图书馆

Safety for all temperature zinc-ion batteries

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2024年第7期94卷 299-301页

作者： Sailin Liu zaiping guo School of Chemical Engineering the University of AdelaideSA 5000Australia

Zinc-ion batteries(ZIBs)have emerged as a promising candidate in the grid scale energy storage,offering an alternative to conventional lithium-ion ***,as research and development efforts in this field progress,it becomes increasingly important to address potential hazards associated with flammable gases and electrolyte *** future paper aims to raise awareness of safety issues that may be overlooked and underscore two primary temperature-induced hazards:long-term cycling H_(2) gas accu-mulation and flammable organic *** evaluate various electrolytes aimed at minimizing gas pro-duction and improving high-temperature ***,we emphasize the effectiveness of electrolyte modifications,especially co-solvent approach in addressing the above safety concerns and suggest pathways for formulating practical safe ***,apart from examining the inherent electrochemical stability window(EsW)of the electrolyte,we urge consideration of side reaction prod-ucts on electrode interfaces and high temperatures as factors influencing a battery's EsW.

关键词： battery electrolyte offering

Understanding voltage hysteresis and decay during anionic redox reaction in layered transition metal oxide cathodes:A critical review

在线全文

学校读者我要写书评

暂无评论

Nano Research 2023年第3期16卷 3766-3780页

作者： Wei Zheng Gemeng Liang Shilin Zhang Kenneth Davey zaiping guo School of Chemical Engineering&Advanced Materials The University of AdelaideAdelaideSA 5005Australia

The emergence of anionic redox reactions in layered transition metal oxide cathodes provides practical opportunity to boost the energy density of rechargeable ***,the activation of anionic redox reaction in layered oxides has significant voltage hysteresis and decay that reduce battery performance and limit ***,we critically review the up-todate development of anionic redox reaction in layered oxide cathodes,summarize the proposed reaction mechanism,and unveil their connection to voltage hysteresis and decay based on the state-of-the-art *** addition,advances associated with various modification approaches to mitigate the voltage hysteresis/decay in layered transition metal oxide cathodes are also ***,we conclude with an appraisal of further research directions including rational design of high-performance layered oxide cathodes with reversible anionic redox reactions and suppressed voltage hysteresis/*** will be of immediate benefit to the development of layered oxide cathodes for high performance rechargeable batteries.

关键词： anionic redox reaction voltage hysteresis voltage decay layered transition metal oxides Li-ion battery Na-ion battery

Synergistic effect of lithiophilic Zn nanoparticles and N-doping for stable Li metal anodes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2022年第2期31卷 439-447页

作者： Lei You Shunlong Ju Jianwen Liu Guanglin Xia zaiping guo Xuebin Yu Department of Materials Science Fudan UniversityShanghai 200433China Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry-of-Education Key Laboratory for Synthesis and Applications of Organic Functional MoleculesCollege of Chemistry and Chemical EngineeringHubei UniversityWuhan 430062HubeiChina School of Chemical Engineering&Advanced Materials The University of AdelaideAdelaideSA 5005Australia

Li metal is the most ideal anode material for next-generation high energy lithium-ion *** uncontrollable growth of Li dendrites,however,hinders its practical ***,we propose the adoption of Zn nanoparticles uniformly embedded in N-doped carbon polyhedra homogeneously built on carbon cloth(Zn@NC@CC)to prevent the formation of Li *** on theoretical calculation and experimental observation,lithiophilic Zn nanoparticles and N-doping inside of the assynthesized Zn@NC play a synergistic role in enhancing the adsorption capacity with Li,thus resulting in uniform Li deposition and complete suppression of Li ***,the porous N-doped carbon polyhedras uniformly distributed on carbon cloth effectively relieves the volume change of Li upon repeated Li stripping/plating process,which contributes to preserving the structural integrity of the whole electrode and hence enhancing its long-term cycling *** from these synergistic effects,the Li-Zn@NC@CC electrode delivers a prolonged lifespan of over 1200 h at 1 mA cm^(-2) with an areal capacity of 1 mA h cm^(-2) in symmetric cells and high Coulombic efficiencies of 95.4%under an ultrahigh capacity of 12 mA h cm^(-2).Remarkably,Li-Zn@NC@CC//LiFePO_(4) full cells deliver a high reversible capacity of 110.2 mA h g^(-1) at 1 C over 200 cycles.

关键词： Li metal anodes Zn nanoparticles N-doping Synergistic effect

The critical role of carbon in marrying silicon and graphite anodes for high-energy lithium-ion batteries

在线全文

学校读者我要写书评

暂无评论

Carbon Energy 2019年第1期1卷 57-76页

作者： Jingxing Wu Yinliang Cao Haimin Zhao Jianfeng Mao zaiping guo Institute for Superconducting and Electronic Materials Australian Institute for Innovative MaterialsUniversity of WollongongWollongongNew South WalesAustralia School of Mechanical MaterialsMechatronics and Biomedical EngineeringUniversity of WollongongWollongongNew South WalesAustralia Tianneng Battery Group Co Ltd ZhejiangChina

Increasing the energy density of conventional lithium-ion batteries(LIBs)is important for satisfying the demands of electric vehicles and advanced *** is considered as one of the most-promising anodes to replace the traditional graphite anode for the realization of high-energy LIBs due to its extremely high theoretical capacity,although its severe volume changes during lithiation/delithiation have led to a big challenge for practical *** contrast,the co-utilization of Si and graphite has been well recognized as one of the preferred strategies for commercialization in the near *** this review,we focus on different carbonaceous additives,such as carbon nanotubes,reduced graphene oxide,and pyrolyzed carbon derived from precursors such as pitch,sugars,heteroatom polymers,and so forth,which play an important role in constructing micrometersized hierarchical structures of silicon/graphite/carbon(Si/G/C)composites and tailoring the morphology and surface with good structural stability,good adhesion,high electrical conductivity,high tap density,and good interface chemistry to achieve high capacity and long cycling stability *** first discuss the importance and challenge of the co-utilization of Si and ***,we carefully review and compare the improved effects of various types of carbonaceous materials and their associated structures on the electrochemical performance of Si/G/C *** also review the diverse synthesis techniques and treatment methods,which are also significant factors for optimizing Si/G/C ***,we provide a pertinent evaluation of these forms of carbon according to their suitability for *** also make far-ranging suggestions with regard to the selection of proper carbonaceous materials and the design of Si/G/C composites for further development.

关键词： carbonaceous additives graphite high energy lithium-ion batteries silicon

Metal chalcogenides for potassium storage

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

InfoMat 2020年第3期2卷 437-465页

作者： Jingwen Zhou Ye Liu Shilin Zhang Tengfei Zhou zaiping guo Institute for Superconducting and Electronic Materials(ISEM) Australian Institute for Innovative Materials(AIIM)School of MechanicalMaterialsMechatronics and Biomedical EngineeringUniversity of WollongongWollongongAustralia Institute of Chemical Materials China Academy of Engineering PhysicsMianyangSichuanPeople's Republic of China

Potassium-based energy storage technologies,especially potassium ion batteries(PIBs),have received great interest over the past decade.A pivotal challenge facing high-performance PIBs is to identify advanced electrode materials that can store the large-radius K+ions,as well as to tailor the various thermodynamic *** chalcogenides are one of the most promising anode materials,having a high theoretical specific capacity,high in-plane electrical conductivity,and relatively small volume change on charge/***,the development of metal chalcogenides for PIBs is still in its infancy because of the limited choice of high-performance electrode ***,numerous efforts have been made to conquer this *** this article,we overview potassium storage mechanisms,the technical hurdles,and the optimization strategies for metal chalcogenides and highlight how the adjustment of the crystalline structure and choice of the electrolyte affect the electrochemical performance of metal-chalcogenide-based electrode *** potential potassium-based energy storage systems to which metal chalcogenides can be applied are also ***,future research directions focusing on metal chalcogenides for potassium storage are proposed.

关键词： energy storage metal chalcogenides modification strategies nanocomposites potassium ion batteries

Addressing cation mixing in layered structured cathodes for lithium-ion batteries:A critical review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Materials Science 2023年第4期5卷 404-420页

作者： Jingxi Li Gemeng Liang Wei Zheng Shilin Zhang Kenneth Davey Wei Kong Pang zaiping guo School of Chemical Engineering&Advanced Materials The University of AdelaideAdelaideAustralia Institute for Superconducting&Electronic Materials University of WollongongWollongongNSWAustralia

High-performance lithium-ion batteries(LIB)are important in powering emerging *** are regarded as the bottleneck of increasing battery energy density,among which layered oxides are the most promising candidates for ***,a limitation with layered oxides cathodes is the transition metal and Li site mixing,which significantly impacts battery capacity and cycling *** recent research on Li/Ni mixing,there is a lack of comprehensive understanding of the origin of cation mixing between the transition metal and Li;therefore,practical means to address ***,a critical review of cation mixing in layered cathodes has been provided,emphasising the understanding of cation mixing mechanisms and their impact on cathode material *** list and compare advanced characterisation techniques to detect cation mixing in the material structure;examine methods to regulate the degree of cation mixing in layered oxides to boost battery capacity and cycling performance,and critically assess how these can be applied *** appraisal of future research directions,including superexchange interaction to stabilise structures and boost capacity retention has also been *** will be of immediate benefit in the design of layered cathodes for high-performance rechargeable LIB and,therefore,of interest to researchers and manufacturers.

关键词： Cation mixing Layered oxide cathodes Lithium-ion batteries Electrochemical performance

Practical assessment of the energy density of potassium-ion batteries

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2024年第1期67卷 4-12页

作者： Liang Sun Guanjie Li Shilin Zhang Sailin Liu Jodie Yuwono Jianfeng Mao zaiping guo School of Chemical Engineering and Advanced Materials The University of AdelaideAdelaide 5000Australia

1 Introduction The evolution of modern human society closely depends on affordable,efficient,and safe energy storage ***,lithium-ion batteries(LIBs)are the dominant energy storage systems to power portable electronics... 详细信息

关键词： energy lithium smart

SnSb@carbon nanocable anchored on graphene sheets for sodium ion batteries

在线全文

学校读者我要写书评

暂无评论

Nano Research 2014年第10期7卷 1466-1476页

作者： Li Li Kuok Hau Seng Dan Li Yongyao Xia Hua Kun Liu zaiping guo Institute for Superconducting and Electronic Materials University of Wollongong North Wollongong NSW 2500 Australia Department of Chemistry Institute of New Energy Fudan University Shanghai 200438 China School of Mechanical Materials and Mechatronics Engineering University of Wollongong Wollongong NSW 2522 Australia

The development of materials with unique nanostructures is an effective strategy for the improvement of sodium storage in sodium ion batteries to achieve stable cycling performance and good rate capability. In this work, SnSb- core/carbon-shell nanocables directly anchored on graphene sheets （GS） were synthesized by the hydrothermal technique and chemical vapor deposition. The simultaneous carbon coating and the encapsulation of SnSb alloy is effective for alleviating the volume-change problem in sodium ion batteries. After optimizing the electrolyte for SnSb in the sodium ion batteries, the optimized coaxial SnSb/carbon nanocable/GS （SnSb/CNT@GS） nanostructure demonstrated stable cycling capability and rate performance in 1 M NaClO4 with propylene carbonate （PC）＋ 5% fluoroethylene carbonate （FEC）. The SnSb/CNT@GS electrode can retain a capacity of 360 mAh/g for up to 100 cycles, which is 71% of the theoretical capacity. This is higher than in the other three electrolytes tested （1 M NaClO4 in PC, 1 M NaC104 in PC/FEC （1：1 v/v） and 1 M NaPF6 ＋ PC）, and higher than that of the sample without the addition of graphene. The good electrochemical performance can be attributed to the efficient buffering provided by the outer carbon nanocable layer and the graphene inhibiting the agglomeration of SnSb particles, as well as its high conductivity.

关键词： SnSb grapheme coaxial structure sodium ion batteries

Biomass‑Derived Carbon Materials for High‑Performance Supercapacitors:Current Status and Perspective

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Electrochemical Energy Reviews 2021年第2期4卷 219-248页

作者： Jiangqi Zhou Shilin Zhang Ya‑Nan Zhou Wei Tang Junhe Yang Chengxin Peng zaiping guo School of Chemical Engineering and Technology Xi’an Jiaotong UniversityXi’an 710049ShaanxiChina School of Materials Science and Engineering University of Shanghai for Science and TechnologyShanghai 200093China School of Mechanical MaterialsMechatronicand Biomedical EngineeringFaculty of Engineering and Information SciencesUniversity of WollongongWollongongNSW 2522Australia

Supercapacitors are electrochemical energy storage systems that depend on high-surface-area electrodes and can play a dominant role in areas that require high power delivery or *** of various electrodes,biomass-derived carbonaceous electrodes have recently shown impressive promise in high-performance supercapacitors because of their widespread availability,renewable nature and low-cost electricity *** on this,this review will discuss the current status of biomass-derived carbon materials in supercapacitors and highlight current research with a specific emphasis on the influences of structure and elemental doping on the electrochemical performance of corresponding carbon *** review will also discuss the gap between laboratory achievements and practical utilization in terms of these biomass-derived carbon materials and outline practical strategies for future improvement.

关键词： Biomass-derived carbonaceous Electrodes Structural engineering Doping effects Supercapacitors