新型炭材料（中英文）2025，Vol.40Issue(1)：154-166,13.DOI:10.1016/S1872-5805(25)60950-4
利用氧化碳纳米管薄膜调控锌离子电池中锌的沉积行为并抑制枝晶形成
The use of an oxidized carbon nanotube film to control Zn deposition and eliminate dendrite formation in a Zn ion battery
摘要
Abstract
Aqueous zinc ion batteries are regarded as one of the most promising candidates for large-scale energy stor-age due to their high safety,cost-effectiveness,and environ-mental friendliness.However,uncontrolled zinc dendrite growth and side reactions of the zinc anode decrease the sta-bility of Zn batteries.We report the synthesis of an air-oxid-ized carbon nanotube(O-CNT)film by chemical vapor de-position followed by heat treatment in air which is used as a protective layer on the Zn foil to suppress zinc dendrite growth.The increase in the hydrophilicity of the O-CNT film caused by air oxidation facilitates zinc deposition between the film and the anode instead of deposition on the film surface.The porous structure of the O-CNT film homogenizes the Zn2+ion flux and the electric field on the surface of the Zn foil,leading to the uniform deposition of Zn.As a result,a O-CNT@Zn symmetric cell has a much better cycling stability with a life of more than 3000 h at 1 mA cm-2 with a capacity of 1 mAh cm-2,and values of more than 2000 h and 1 mAh cm-2 at 5 mA cm-2.In addition,a O-CNT@Zn ‖ Mn2+inserted hydrated vanadium pentoxide(MnVOH)full cell has a better rate per-formance than a Zn ‖ MnVOH cell,achieving a high discharge capacity of 194 mAh g-1 at a high current density of 8 A g-1.In a long-term cycling test,the O-CNT@Zn ‖MnVOH full cell has a capacity retention of 58.8％after 2000 cycles at a current density of 5 A·g-1.关键词
碳纳米管/锌金属阳极/无枝晶/亲水性/表面功能化Key words
Carbon nanotubes/Zn metal anodes/Dendrite-free/Hydrophilic/Surface functionalization分类
化学化工引用本文复制引用
李品祥,易喆涵,王业兴,何畅,梁骥,侯峰..利用氧化碳纳米管薄膜调控锌离子电池中锌的沉积行为并抑制枝晶形成[J].新型炭材料（中英文）,2025,40(1):154-166,13.基金项目
This work was supported by the National Natur-al Science Foundation of China(22179093 and 21905202). 中国国家自然科学基金(22179093,21905202). （22179093 and 21905202）
