High-Performance Flexible All-Solid-State Asymmetric Supercapacitors Based on Vertically Aligned CuSe@Co(OH) 2 Nanosheet Arrays
Abstract
The developments of electrode active materials provide the opportunities for next-generation energy storage devices. The arrangement of electrode materials on the substrate has recently emerged as a promising strategy for preparing high-performance supercapacitors. In this paper, we demonstrate a novel vertically aligned CuSe@Co(OH) 2 nanosheet arrays electrode for supercapacitor application. The materials are thoroughly characterized by structural and spectroscopic techniques. Electrochemical performance of CuSe@Co(OH) 2 nanosheet arrays are investigated in detail, which exhibit a specific capacitance as much as 1180 F g -1 at a current density of 1 A g -1. A flexible asymmetric all-solid-state supercapacitor is fabricated using CuSe@Co(OH) 2 nanosheet arrays as the positive electrode and activated carbon as the negative electrode. The device delivers a volumetric capacitance of 441.4 mF cm -3 with maximum energy density and maximum power density is 0.17 and 62.1 mW cm -3, as well as robust cycling stability (~80.4% capacitance retention after 10 000 cycles), excellent flexibility, and mechanical stability. Finally, the excellent electrochemical performance can be attributed to its unique vertically aligned configuration.
- Authors:
-
[1];
- Hohai University, Nanjing (China). College of Science
- Hohai University, Nanjing (China). College of Science
- Nanjing Univ. (China). Nanjing National Laboratory of Solid State Microstructures
- Ames Lab., Ames, IA (United States)
- Publication Date:
- Research Org.:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- OSTI Identifier:
- 1427731
- Report Number(s):
- IS-J-9603
Journal ID: ISSN 1932-7447; TRN: US1802736
- Grant/Contract Number:
- AC02-07CH11358; 2015B22314; 2016B46014
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Journal of Physical Chemistry. C
- Additional Journal Information:
- Journal Volume: 122; Journal Issue: 4; Journal ID: ISSN 1932-7447
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE; 36 MATERIALS SCIENCE; CuSe@Co(OH)2; vertically-aligned; nanosheet arrays; all-solid-state; asymmetric supercapacitor
Citation Formats
Gong, Jiangfeng, Tian, Yazhou, Yang, Ziyuan, Wang, Qianjin, Hong, Xihao, and Ding, Qingping. High-Performance Flexible All-Solid-State Asymmetric Supercapacitors Based on Vertically Aligned CuSe@Co(OH)2 Nanosheet Arrays. United States: N. p., 2018.
Web. doi:10.1021/acs.jpcc.7b11125.
Gong, Jiangfeng, Tian, Yazhou, Yang, Ziyuan, Wang, Qianjin, Hong, Xihao, & Ding, Qingping. High-Performance Flexible All-Solid-State Asymmetric Supercapacitors Based on Vertically Aligned CuSe@Co(OH)2 Nanosheet Arrays. United States. doi:10.1021/acs.jpcc.7b11125.
Gong, Jiangfeng, Tian, Yazhou, Yang, Ziyuan, Wang, Qianjin, Hong, Xihao, and Ding, Qingping. Thu .
"High-Performance Flexible All-Solid-State Asymmetric Supercapacitors Based on Vertically Aligned CuSe@Co(OH)2 Nanosheet Arrays". United States. doi:10.1021/acs.jpcc.7b11125. https://www.osti.gov/servlets/purl/1427731.
@article{osti_1427731,
title = {High-Performance Flexible All-Solid-State Asymmetric Supercapacitors Based on Vertically Aligned CuSe@Co(OH)2 Nanosheet Arrays},
author = {Gong, Jiangfeng and Tian, Yazhou and Yang, Ziyuan and Wang, Qianjin and Hong, Xihao and Ding, Qingping},
abstractNote = {The developments of electrode active materials provide the opportunities for next-generation energy storage devices. The arrangement of electrode materials on the substrate has recently emerged as a promising strategy for preparing high-performance supercapacitors. In this paper, we demonstrate a novel vertically aligned CuSe@Co(OH)2 nanosheet arrays electrode for supercapacitor application. The materials are thoroughly characterized by structural and spectroscopic techniques. Electrochemical performance of CuSe@Co(OH)2 nanosheet arrays are investigated in detail, which exhibit a specific capacitance as much as 1180 F g-1 at a current density of 1 A g-1. A flexible asymmetric all-solid-state supercapacitor is fabricated using CuSe@Co(OH)2 nanosheet arrays as the positive electrode and activated carbon as the negative electrode. The device delivers a volumetric capacitance of 441.4 mF cm-3 with maximum energy density and maximum power density is 0.17 and 62.1 mW cm-3, as well as robust cycling stability (~80.4% capacitance retention after 10 000 cycles), excellent flexibility, and mechanical stability. Finally, the excellent electrochemical performance can be attributed to its unique vertically aligned configuration.},
doi = {10.1021/acs.jpcc.7b11125},
journal = {Journal of Physical Chemistry. C},
issn = {1932-7447},
number = 4,
volume = 122,
place = {United States},
year = {2018},
month = {1}
}
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Figures / Tables:
Fig. 1.: (a) Design of hybrid core/shell nanostructures based supercapacitors. (b) Schematic illustration of the formation process of vertically-aligned CuSe@Co(OH)2 nanosheet arrays.
Figures / Tables found in this record: