Structural energy storage composites present advantages in simultaneously achieving structural strength and electrochemical properties.Adoption of carbon fiber electrodes and resin structural electrolytes in energy st...Structural energy storage composites present advantages in simultaneously achieving structural strength and electrochemical properties.Adoption of carbon fiber electrodes and resin structural electrolytes in energy storage composite poses challenges in maintaining good mechanical and electrochemical properties at reasonable cost and effort.Here,we report a simple method to fabricate structural supercapacitor using carbon fiber electrodes(modified by Ni-layered double hydroxide(Ni-LDH)and in-situ growth of Co-metal-organic framework(Co-MOF)in a two-step process denoted as Co-MOF/Ni-LDH@CF)and bicontinuous-phase epoxy resin-based structural electrolyte.Co-MOF/Ni-LDH@CF as electrode material exhibits improved specific capacity(42.45 F·g^(-1))and cycle performance(93.3%capacity retention after 1000 cycles)in a three-electrode system.The bicontinuous-phase epoxy resin-based structural electrolyte exhibits an ionic conductivity of 3.27×10^(-4) S·cm^(-1).The fabricated Co-MOF/Ni-LDH@CF/SPE-50 structural supercapacitor has an energy density of 3.21 Wh·kg^(-1) at a power density of 42.25 W·kg^(-1),whilst maintaining tensile strength and modulus of 334.6 MPa and 25.2 GPa.These results show practical potential of employing modified commercial carbon fiber electrodes and epoxy resin-based structural electrolytes in structural energy storage applications.展开更多
The intensifying challenges posed by climate change and the depletion of fossil fuels have spurred concerted global efforts to develop alternative energy storage solutions.Aqueous zinc-ion batteries(AZIBs)have emerged...The intensifying challenges posed by climate change and the depletion of fossil fuels have spurred concerted global efforts to develop alternative energy storage solutions.Aqueous zinc-ion batteries(AZIBs)have emerged as promising candidates for large-scale electrochemical energy storage systems because of their intrinsic safety,cost-effectiveness,and environmental sustainability.However,Zn dendrite growth consis-tently poses a remarkable challenge to the performance improvement and commercial viability of AZIBs.The use of three-dimensional porous Zn anodes instead of planar Zn plates has been demonstrated as an effec-tive strategy to regulate the deposition/stripping behavior of Zn2+ions,thereby inhibiting the dendrite growth.Here,the merits of porous Zn anodes were summarized,and a comprehensive overview of the recent advancements in the engineering of porous Zn metal anodes was provided,with a particular emphasis on the structural orderliness and critical role of porous structure modulation in enhancing battery performance.Furthermore,strategic insights into the design of porous Zn anodes were presented to facilitate the practical implementation of AZIBs for grid-scale energy storage applications.展开更多
铜及其合金具有高导电性、高导热性、优良的力学性能和耐腐蚀性能,是应用广泛的工业材料之一,也是全世界众多机构及学者研究的主要对象之一。Web of Science(WoS)Core Collection数据库2023年发表并收录铜及铜合金领域的论文近8000篇,...铜及其合金具有高导电性、高导热性、优良的力学性能和耐腐蚀性能,是应用广泛的工业材料之一,也是全世界众多机构及学者研究的主要对象之一。Web of Science(WoS)Core Collection数据库2023年发表并收录铜及铜合金领域的论文近8000篇,文献计量学分析表明,铜及铜合金研究的传统方向依然受到很大关注,如铜合金的微观组织、物理化学性能、腐蚀性能等,而铜基功能材料更是当前铜合金研究的热点。中国科学院(>300篇论文)、中南大学、俄罗斯科学院、中国科学院大学、沙特王国大学、北京科技大学(>100篇论文)、中国科学技术大学、昆明理工大学、上海交通大学、哈尔滨工业大学等机构在铜合金研究与开发方面做出了显著贡献。本综述结合统计数据对2023年铜及铜合金材料的研究现状进行概述,介绍了铜冶炼和铜材料制备的基本方法,然后从5方面论述了铜材料的应用:1)铜合金结构材料;2)铜基催化材料;3)铜基电子材料;4)铜基再生材料;5)铜基储能材料。最后,对铜及铜合金材料的未来发展方向进行展望,并提出未来研究方向建议。展开更多
Adopting a nano-and micro-structuring approach to fully unleashing the genuine potential of electrode active material benefits in-depth understandings and research progress toward higher energy density electrochemical...Adopting a nano-and micro-structuring approach to fully unleashing the genuine potential of electrode active material benefits in-depth understandings and research progress toward higher energy density electrochemical energy stor-age devices at all technology readiness levels.Due to various challenging issues,especially limited stability,nano-and micro-structured(NMS)electrodes undergo fast electrochemical performance degradation.The emerging NMS scaffold design is a pivotal aspect of many electrodes as it endows them with both robustness and electrochemical performance enhancement,even though it only occupies comple-mentary and facilitating components for the main mechanism.However,extensive efforts are urgently needed toward optimizing the stereoscopic geometrical design of NMS scaffolds to minimize the volume ratio and maximize their functionality to fulfill the ever-increasing dependency and desire for energy power source supplies.This review will aim at highlighting these NMS scaffold design strategies,summariz-ing their corresponding strengths and challenges,and thereby outlining the potential solutions to resolve these challenges,design principles,and key perspectives for future research in this field.Therefore,this review will be one of the earliest reviews from this viewpoint.展开更多
基金supported by fund of the National Natural Science Foundation of China(No.12172024).
文摘Structural energy storage composites present advantages in simultaneously achieving structural strength and electrochemical properties.Adoption of carbon fiber electrodes and resin structural electrolytes in energy storage composite poses challenges in maintaining good mechanical and electrochemical properties at reasonable cost and effort.Here,we report a simple method to fabricate structural supercapacitor using carbon fiber electrodes(modified by Ni-layered double hydroxide(Ni-LDH)and in-situ growth of Co-metal-organic framework(Co-MOF)in a two-step process denoted as Co-MOF/Ni-LDH@CF)and bicontinuous-phase epoxy resin-based structural electrolyte.Co-MOF/Ni-LDH@CF as electrode material exhibits improved specific capacity(42.45 F·g^(-1))and cycle performance(93.3%capacity retention after 1000 cycles)in a three-electrode system.The bicontinuous-phase epoxy resin-based structural electrolyte exhibits an ionic conductivity of 3.27×10^(-4) S·cm^(-1).The fabricated Co-MOF/Ni-LDH@CF/SPE-50 structural supercapacitor has an energy density of 3.21 Wh·kg^(-1) at a power density of 42.25 W·kg^(-1),whilst maintaining tensile strength and modulus of 334.6 MPa and 25.2 GPa.These results show practical potential of employing modified commercial carbon fiber electrodes and epoxy resin-based structural electrolytes in structural energy storage applications.
基金National Natural Science Foundation of China(Grant No.22309102)China Postdoctoral Science Foundation(Grant No.2022M711788)+3 种基金National Key Research and Development Program of China(Grant No.2022YFB2404500)Fundamental Research Project of Shenzhen(Grant No.JCYJ20230807111702005)the Australian Research Council through the ARC Discovery Project(Grant No.DP230101579)ACR Linkage Project(Grant No.LP200200926).
文摘The intensifying challenges posed by climate change and the depletion of fossil fuels have spurred concerted global efforts to develop alternative energy storage solutions.Aqueous zinc-ion batteries(AZIBs)have emerged as promising candidates for large-scale electrochemical energy storage systems because of their intrinsic safety,cost-effectiveness,and environmental sustainability.However,Zn dendrite growth consis-tently poses a remarkable challenge to the performance improvement and commercial viability of AZIBs.The use of three-dimensional porous Zn anodes instead of planar Zn plates has been demonstrated as an effec-tive strategy to regulate the deposition/stripping behavior of Zn2+ions,thereby inhibiting the dendrite growth.Here,the merits of porous Zn anodes were summarized,and a comprehensive overview of the recent advancements in the engineering of porous Zn metal anodes was provided,with a particular emphasis on the structural orderliness and critical role of porous structure modulation in enhancing battery performance.Furthermore,strategic insights into the design of porous Zn anodes were presented to facilitate the practical implementation of AZIBs for grid-scale energy storage applications.
文摘铜及其合金具有高导电性、高导热性、优良的力学性能和耐腐蚀性能,是应用广泛的工业材料之一,也是全世界众多机构及学者研究的主要对象之一。Web of Science(WoS)Core Collection数据库2023年发表并收录铜及铜合金领域的论文近8000篇,文献计量学分析表明,铜及铜合金研究的传统方向依然受到很大关注,如铜合金的微观组织、物理化学性能、腐蚀性能等,而铜基功能材料更是当前铜合金研究的热点。中国科学院(>300篇论文)、中南大学、俄罗斯科学院、中国科学院大学、沙特王国大学、北京科技大学(>100篇论文)、中国科学技术大学、昆明理工大学、上海交通大学、哈尔滨工业大学等机构在铜合金研究与开发方面做出了显著贡献。本综述结合统计数据对2023年铜及铜合金材料的研究现状进行概述,介绍了铜冶炼和铜材料制备的基本方法,然后从5方面论述了铜材料的应用:1)铜合金结构材料;2)铜基催化材料;3)铜基电子材料;4)铜基再生材料;5)铜基储能材料。最后,对铜及铜合金材料的未来发展方向进行展望,并提出未来研究方向建议。
基金The authors acknowledge support from the German Research Foundation(DFG:LE 2249/5-1)the Sino-German Center for Research Promotion(GZ1579)+1 种基金Yunnan Fundamental Research Projects(202201AW070014)Jiajia Qiu and Yu Duan appreciate support from the China Scholarship Council(No.201908530218&202206990027).
文摘Adopting a nano-and micro-structuring approach to fully unleashing the genuine potential of electrode active material benefits in-depth understandings and research progress toward higher energy density electrochemical energy stor-age devices at all technology readiness levels.Due to various challenging issues,especially limited stability,nano-and micro-structured(NMS)electrodes undergo fast electrochemical performance degradation.The emerging NMS scaffold design is a pivotal aspect of many electrodes as it endows them with both robustness and electrochemical performance enhancement,even though it only occupies comple-mentary and facilitating components for the main mechanism.However,extensive efforts are urgently needed toward optimizing the stereoscopic geometrical design of NMS scaffolds to minimize the volume ratio and maximize their functionality to fulfill the ever-increasing dependency and desire for energy power source supplies.This review will aim at highlighting these NMS scaffold design strategies,summariz-ing their corresponding strengths and challenges,and thereby outlining the potential solutions to resolve these challenges,design principles,and key perspectives for future research in this field.Therefore,this review will be one of the earliest reviews from this viewpoint.
