A Novel Nickel Nanocone Array Current Collector for High Performance supercapacitor

摘要：

　　Energy storage devices have become more indispensable in our lives.Among various energy storage devices,supercapacitors have been considered as one of the most promising candidates.In terms of the components of supercapacitor,current collector plays a significant role in enhancing the performance of the supercapacitors.Here we report a novel current collector preparation method through depositing nickel nanocone arrays structure on stainless steel plates.The average height of the nanocones was~800nm,and its aspect ratio was about 4,which greatly increased the surface area.Owing to its dislocation growth mechanism,the surface of nanocones was rough,which efficiently improved the adhesion with active materials.In order to demonstrate this novel current collector,manganese oxide(MnO2)was deposited on stainless steel with nickel nanocone arrays.Results showed that the specific capacitance of the nickel nanocone array supported MnO2 which was investigated in 0.5 M Na2SO4 was 351 F/g.It is worth mentioning that the preparation of the novel current collector can be fabricated in large-scale by roll-to-roll process,which greatly promotes the application of the novel current collector.

关键词： supercapacitor nickel nanocone array electrochemical perpformance

作者: Binghe Xie Cheng Yang Zijin Su Zhexu Zhang Xiaoya Cui Jingping Liu

作者单位: Graduate School at Shenzhen Tsinghua University Xili University Town,Shenzhen,China

会议类型: 国际会议

会议名称: The 15th International Conference on Electronic Packaging Technology (ICEPT 2014) ) (第十五届电子封装技术国际会议)

会议地点: 成都

会议语种:英文

页码: 270-275

在线出版日期: 2014-08-12（万方平台首次上网日期，不代表论文的发表时间）