Lithium battery has recently gained more and more attention worldwide.It has wide usage that range from toys to electric cars.Choosing a suitable material that best fits the overall performance as electrode for the ba...Lithium battery has recently gained more and more attention worldwide.It has wide usage that range from toys to electric cars.Choosing a suitable material that best fits the overall performance as electrode for the battery is very essential.For cathode material,apart from the traditional and widely-used LiCoCO_(2),LiFePO_(4)and so on,there are innovations that include the use of V_(2)O_(5).Researches have been done focusing on how to further improve the performance for V_(2)O_(5)cathode in terms of different structure,forms or combination with other chemical molecules.This research paper will make a summary of the materials derived from traditional V_(2)O_(5)as well as their performances.展开更多
Aqueous zinc-ion batteries(AZIBs)have become a hotspot for electrochemical energy storage owing to the high safety,low cost,environmental friendliness,and favorable rate performance.However,the serious dissolution of ...Aqueous zinc-ion batteries(AZIBs)have become a hotspot for electrochemical energy storage owing to the high safety,low cost,environmental friendliness,and favorable rate performance.However,the serious dissolution of cathode materials in aqueous electrolytes would lead to poor cyclability,which should be addressed before commercialization.Herein,we designed a Ti-doped V_(2)O_(5) with yolk-shell microspherical structure for AZIBs.The Ti doping stabilizes the crystal structure and relieves the dissolution of V_(2)O_(5) in aqueous ZnSO_(4) electrolyte.The optimized sample,Ti_(0.2)V_(1.8)O_(4.9),delivers a high capacity(355 mAh/g at 0.05 A/g)as well as good capacity retention(89%after 2500 cycles at 1.0 A/g).This work provides an effective strategy to mitigate the dissolution of cathode material in aqueous ZnSO_(4) electrolyte for cyclability enhancement.展开更多
文摘Lithium battery has recently gained more and more attention worldwide.It has wide usage that range from toys to electric cars.Choosing a suitable material that best fits the overall performance as electrode for the battery is very essential.For cathode material,apart from the traditional and widely-used LiCoCO_(2),LiFePO_(4)and so on,there are innovations that include the use of V_(2)O_(5).Researches have been done focusing on how to further improve the performance for V_(2)O_(5)cathode in terms of different structure,forms or combination with other chemical molecules.This research paper will make a summary of the materials derived from traditional V_(2)O_(5)as well as their performances.
基金the National Natural Science Foundation of China(No.52102299)the Independent Innovation Project of Hubei Longzhong Laboratory(No.2022ZZ-18)+1 种基金the Guangdong Basic and Applied Basic Research Foundation(No.2021A1515110059)the Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory(No.XHT2020-003).
文摘Aqueous zinc-ion batteries(AZIBs)have become a hotspot for electrochemical energy storage owing to the high safety,low cost,environmental friendliness,and favorable rate performance.However,the serious dissolution of cathode materials in aqueous electrolytes would lead to poor cyclability,which should be addressed before commercialization.Herein,we designed a Ti-doped V_(2)O_(5) with yolk-shell microspherical structure for AZIBs.The Ti doping stabilizes the crystal structure and relieves the dissolution of V_(2)O_(5) in aqueous ZnSO_(4) electrolyte.The optimized sample,Ti_(0.2)V_(1.8)O_(4.9),delivers a high capacity(355 mAh/g at 0.05 A/g)as well as good capacity retention(89%after 2500 cycles at 1.0 A/g).This work provides an effective strategy to mitigate the dissolution of cathode material in aqueous ZnSO_(4) electrolyte for cyclability enhancement.
