CORC  > 兰州理工大学  > 兰州理工大学  > 材料科学与工程学院
Design and Synthesis of CoP/r-GO Hierarchical Architecture: Dominated Pseudocapacitance, Fasted Kinetics Features, and Li-Ion Capacitor Applications
Li, Feng-Feng2; Gao, Jian-Fei2; He, Zheng-Hua2; Kong, Ling-Bin1,2
刊名ACS Applied Energy Materials
2020-06-22
卷号3期号:6页码:5448-5461
关键词Activated carbon Anodes Cathodes Coefficient of performance Energy storage Graphene Ions Kinetics Lithium compounds Nanocomposites Nanorods Potential energy Supercapacitor Conductive networks Dynamic characteristics Electrochemical kinetics Hierarchical architectures Kinetic calculations Lithium-ion capacitors Nanocomposite electrodes Specific capacities
ISSN号2574-0962
DOI10.1021/acsaem.0c00440
英文摘要

The lithium-ion capacitors (LICs) become potential energy storage devices because they have both outstanding energy density of lithium-ion batteries (LIBs) and excellent power density of supercapacitors (SCs). However, significant challenges such as the discrepant energy-storage mechanism of the anode and the cathode material must be addressed for their practical applications. We reported a method to enhance the electrochemical kinetics of CoP by combining with reduced graphene oxide(r-GO) conductive network and designed the 3D urchin-like CoP nanorods that reduce the volume expansion of CoP during Li+ insertion/extraction. The resulting prepared high capacitive characteristic 3D CoP/r-GO nanocomposite electrode delivered a specific capacity of 510 mAh g-1 at 0.1A g-1 after 500 cycles in a LIB half-cell, and its b value is up to 0.93 by kinetic calculation. The LIC device assembled with the 3D CoP/r-GO nanocomposites anode and activated carbon (AC) cathode, it provided a distinctive energy density of 119.3Wh kg-1 (current density is 0.1A g-1) and power density of 8400 W kg-1 (current density is 4.8A g-1). This result indicates that the energy density and power density of LICs can be enhanced by improving the dynamic characteristics of the electrode material. © 2020 American Chemical Society.

WOS研究方向Chemistry ; Energy & Fuels ; Materials Science
语种英语
出版者American Chemical Society
WOS记录号WOS:000543715100040
内容类型期刊论文
源URL[http://ir.lut.edu.cn/handle/2XXMBERH/115086]  
专题材料科学与工程学院
作者单位1.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
2.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式
GB/T 7714
Li, Feng-Feng,Gao, Jian-Fei,He, Zheng-Hua,et al. Design and Synthesis of CoP/r-GO Hierarchical Architecture: Dominated Pseudocapacitance, Fasted Kinetics Features, and Li-Ion Capacitor Applications[J]. ACS Applied Energy Materials,2020,3(6):5448-5461.
APA Li, Feng-Feng,Gao, Jian-Fei,He, Zheng-Hua,&Kong, Ling-Bin.(2020).Design and Synthesis of CoP/r-GO Hierarchical Architecture: Dominated Pseudocapacitance, Fasted Kinetics Features, and Li-Ion Capacitor Applications.ACS Applied Energy Materials,3(6),5448-5461.
MLA Li, Feng-Feng,et al."Design and Synthesis of CoP/r-GO Hierarchical Architecture: Dominated Pseudocapacitance, Fasted Kinetics Features, and Li-Ion Capacitor Applications".ACS Applied Energy Materials 3.6(2020):5448-5461.
个性服务
查看访问统计
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。


©版权所有 ©2017 CSpace - Powered by CSpace