[1]蔡婉玥,骆红宇,黄珍,等.自支撑二氧化钒/碳布电极的制备及储锌性能研究[J].湖北工业大学学报,2024,39(4):66-71.
 CAI Wanyue,LUO Hongyu,HUANG Zhen,et al.Synthesis and Zn Ion Storage Performance of Self-SupportingVanadium Dioxide/Carbon Cloth Electrodes[J].,2024,39(4):66-71.
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自支撑二氧化钒/碳布电极的制备及储锌性能研究()
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《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
39
期数:
2024年第4期
页码:
66-71
栏目:
出版日期:
2024-08-28

文章信息/Info

Title:
Synthesis and Zn Ion Storage Performance of Self-SupportingVanadium Dioxide/Carbon Cloth Electrodes
文章编号:
1003-4684(2024)04-0066-06
作者:
蔡婉玥1 骆红宇1 黄珍1 张文卫2 罗平1 董仕节13
(1 湖北工业大学材料与化学工程学院,湖北 武汉 430068;2 武汉理工大学材料复合新技术国家重点实验室,湖北 武汉 430070;3 武汉轻工大学机械工程学院, 湖北 武汉 430023)
Author(s):
CAI Wanyue1 LUO Hongyu1 HUANG Zhen1 ZHANG Wenwei2 LUO Ping1 DONG Shijie13
(1 School of Materials and Chemical Engineering, Hubei Univ. of Tech., Wuhan 430068, China;2 State Key Laboratory of New Technology for Composite Materials,Wuhan Univ. of Tech., Wuhan 430070, China;3 School of Materials and Chemical Engin.,Wuhan Polytechnic Univ., Wuhan 430023, China)
关键词:
水系锌离子电池 正极 高负载 二氧化钒 碳布
Keywords:
aqueous zinc ion battery cathode high mass loading vanadium dioxide carbon cloth
分类号:
TQ152
文献标志码:
A
摘要:
通过水热法成功制备具有高质量负载(4~5 mg/cm2)的自支撑VO2 /碳布柔性电极(VO2@CC),并将其用作水系锌离子电池正极材料。该材料在0.1 A/g的电流密度下表现出296.1 mAh/g的高比容量,在4 A/g的电流密度下经过800次循环后容量仍达到111 mAh/g,展现出优越的电化学性能。此外,通过电化学阻抗谱(EIS)和恒电流间歇滴定技术(GITT),评价Zn2+嵌入/脱出的传输动力学:Zn∥VO2@CC具有较小电荷转移电阻(29.04 Ω)以及较大的Zn2+扩散系数(~10-7 cm2/s)。本研究工作为水系锌离子电池正极材料的发展提供了一个可供选择的策略。
Abstract:
Self -supporting VO 2/carbon cloth flexible electrodes (VO2@CC) with high mass loading (4~5 mg/cm-2) were successfully synthesized by hydrothermal method and subsequently used as the cathode for aqueous zinc ion batteries. The Zn∥VO2@CC battery exhibits a high specific capacity of 296.1 mAh/g-1 at 0.1 A/g-1 and retains a specific capacity of 111 mAh/g-1 after 800 cycles at 4 A/g-1, showing a superior electrochemical performance. Additionally, the kinetics of zinc ion insertion/extraction was evaluated by electrochemical impedance spectroscopy (EIS) and galvanostatic intermittent titration technique (GITT), demonstrating that the Zn∥VO2@CC battery has a small charge transfer resistance (29.04 Ω) as well as a fast Zn2+ diffusion coefficient (~10-7 cm2 s-1). This work provides an alternative strategy for the development of cathode materials for aqueous zinc ion battery.

参考文献/References:

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备注/Memo

备注/Memo:
[收稿日期] 20220728[基金项目] 大学生创新性实验计划项目(S202110500041); 国家自然科学基金(51771071) [第一作者] 蔡婉玥(2001-), 女, 湖北武汉人, 湖北工业大学本科生, 研究方向为材料成型及控制工程。[通信作者] 董仕节(1965-), 男, 湖北监利人, 湖北工业大学教授, 研究方向为纳米储能材料及器件。
更新日期/Last Update: 2024-08-23