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 |
DOI | 10.1021/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. |
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