Aqueous zinc ion batteries(AZIBs) demonstrate tremendous competitiveness and application prospects because of their abundant resources,low cost, high safety, and environmental friendliness. Although the advanced elect...Aqueous zinc ion batteries(AZIBs) demonstrate tremendous competitiveness and application prospects because of their abundant resources,low cost, high safety, and environmental friendliness. Although the advanced electrochemical energy storage systems based on zinc ion batteries have been greatly developed, many severe problems associated with Zn anode impede its practical application, such as the dendrite formation,hydrogen evolution, corrosion and passivation phenomenon. To address these drawbacks, electrolytes, separators, zinc alloys, interfacial modification and structural design of Zn anode have been employed at present by scientists. Among them, the structural design for zinc anode is relatively mature, which is generally believed to enhance the electroactive surface area of zinc anode, reduce local current density, and promote the uniform distribution of zinc ions on the surface of anode. In order to explore new research directions, it is crucial to systematically summarize the structural design of anode materials. Herein, this review focuses on the challenges in Zn anode, modification strategies and the three-dimensional(3D) structure design of substrate materials for Zn anode including carbon substrate materials, metal substrate materials and other substrate materials. Finally, future directions and perspectives about the Zn anode are presented for developing high-performance AZIBs.展开更多
The anode material Zn4SO4（OH）6·5H2O for nickle/zinc batteries was synthesized by hydrothermal method and was identified by XRD techniques. TG/DAT measurements reveal that the products lose lattice water at 145 ...The anode material Zn4SO4（OH）6·5H2O for nickle/zinc batteries was synthesized by hydrothermal method and was identified by XRD techniques. TG/DAT measurements reveal that the products lose lattice water at 145 ℃ and decompose to 3ZnO·ZnSO4 at 274 ℃. Cyclic voltammetry and recharging/discharging results show that CV curves have good symmetry, the ratio of oxidation area to reduction area for each curve is about 1, and the peak potential EPa and EPc have little change with the scanning rate. At 50th circle, more than 65% of theoretical capacity is obtained while at the same condition, zinc oxide electrode only remains 35% of theoretical capacity.展开更多
Aqueous zinc metal batteries have attracted much attention in the field of large-scale energy storage due to their abundant resources,high safety,low cost,and high theoretical energy density.However,Zn anodes suffer f...Aqueous zinc metal batteries have attracted much attention in the field of large-scale energy storage due to their abundant resources,high safety,low cost,and high theoretical energy density.However,Zn anodes suffer from serious problems such as dendrite growth,hydrogen evolution reaction,corrosion,and passivation.Cu-based materials have a wide range of applications in Zn anodes due to their excellent zincophilicity.Unfortunately,relevant review on Cu-based materials in anode electrode is still lacking.This review focuses on the progress,issues,and optimization strategies of Cu-based materials in Zn anodes.The application of Cu collectors in Zn anodes and the corresponding modifications are also highlighted.Finally,insights and future directions related to Cu-based materials for modified Zn anode and Cu collectors are presented to provide scientific guidance for future research.展开更多
以石墨烯为基底,用水热法制备蜂窝状钴酸锌（ZnCo2O4）/还原氧化石墨烯（rGO）微球复合材料。用XRD、SEM分析复合材料的结构和形貌,用恒流充放电及循环伏安法测试复合材料的电化学性能。石墨烯的加入,可改变ZnCo2O4颗粒的形貌,并改善复...以石墨烯为基底,用水热法制备蜂窝状钴酸锌（ZnCo2O4）/还原氧化石墨烯（rGO）微球复合材料。用XRD、SEM分析复合材料的结构和形貌,用恒流充放电及循环伏安法测试复合材料的电化学性能。石墨烯的加入,可改变ZnCo2O4颗粒的形貌,并改善复合材料作为锂离子电池负极活性物质的电化学性能。以500 m A/g的电流在0.013.00 V循环,复合材料的首次放电比容量为1 326.7 m Ah/g,第70次循环的放电比容量为1 212.4 m Ah/g。展开更多
基金financially supported by the National Natural Science Foundation of China (Grants Nos. 52064013, 52064014, 52072323 and 52122211)the “Double-First Class” Foundation of Materials and Intelligent Manufacturing Discipline of Xiamen University。
文摘Aqueous zinc ion batteries(AZIBs) demonstrate tremendous competitiveness and application prospects because of their abundant resources,low cost, high safety, and environmental friendliness. Although the advanced electrochemical energy storage systems based on zinc ion batteries have been greatly developed, many severe problems associated with Zn anode impede its practical application, such as the dendrite formation,hydrogen evolution, corrosion and passivation phenomenon. To address these drawbacks, electrolytes, separators, zinc alloys, interfacial modification and structural design of Zn anode have been employed at present by scientists. Among them, the structural design for zinc anode is relatively mature, which is generally believed to enhance the electroactive surface area of zinc anode, reduce local current density, and promote the uniform distribution of zinc ions on the surface of anode. In order to explore new research directions, it is crucial to systematically summarize the structural design of anode materials. Herein, this review focuses on the challenges in Zn anode, modification strategies and the three-dimensional(3D) structure design of substrate materials for Zn anode including carbon substrate materials, metal substrate materials and other substrate materials. Finally, future directions and perspectives about the Zn anode are presented for developing high-performance AZIBs.
文摘The anode material Zn4SO4（OH）6·5H2O for nickle/zinc batteries was synthesized by hydrothermal method and was identified by XRD techniques. TG/DAT measurements reveal that the products lose lattice water at 145 ℃ and decompose to 3ZnO·ZnSO4 at 274 ℃. Cyclic voltammetry and recharging/discharging results show that CV curves have good symmetry, the ratio of oxidation area to reduction area for each curve is about 1, and the peak potential EPa and EPc have little change with the scanning rate. At 50th circle, more than 65% of theoretical capacity is obtained while at the same condition, zinc oxide electrode only remains 35% of theoretical capacity.
基金supported by the National Natural Science Foundation of China(Nos.52072411,52172263)the Natural Science Foundation of Hunan Province(No.2022JJ30051)the Central South University InnovationDriven Research Program(No.2023CXQD038).
文摘Aqueous zinc metal batteries have attracted much attention in the field of large-scale energy storage due to their abundant resources,high safety,low cost,and high theoretical energy density.However,Zn anodes suffer from serious problems such as dendrite growth,hydrogen evolution reaction,corrosion,and passivation.Cu-based materials have a wide range of applications in Zn anodes due to their excellent zincophilicity.Unfortunately,relevant review on Cu-based materials in anode electrode is still lacking.This review focuses on the progress,issues,and optimization strategies of Cu-based materials in Zn anodes.The application of Cu collectors in Zn anodes and the corresponding modifications are also highlighted.Finally,insights and future directions related to Cu-based materials for modified Zn anode and Cu collectors are presented to provide scientific guidance for future research.
文摘以石墨烯为基底,用水热法制备蜂窝状钴酸锌（ZnCo2O4）/还原氧化石墨烯（rGO）微球复合材料。用XRD、SEM分析复合材料的结构和形貌,用恒流充放电及循环伏安法测试复合材料的电化学性能。石墨烯的加入,可改变ZnCo2O4颗粒的形貌,并改善复合材料作为锂离子电池负极活性物质的电化学性能。以500 m A/g的电流在0.013.00 V循环,复合材料的首次放电比容量为1 326.7 m Ah/g,第70次循环的放电比容量为1 212.4 m Ah/g。
