Title :

Facile Assembly of Hybrid Micro-Supercapacitors for a Sunlight-Powered Energy Storage System

Author(s) :

Li, Min [Auteur]
Xi'an Jiaotong University [Xjtu]
Jia, Chen [Auteur]
Xi'an Jiaotong University [Xjtu]
Zhang, Danyu [Auteur]
Xi'an Jiaotong University [Xjtu]
Luo, Yunyun [Auteur]
Xi'an Jiaotong University [Xjtu]
Wang, Lu [Auteur]
Xi'an Jiaotong University [Xjtu]
Yang, Ping [Auteur]
Xi'an Jiaotong University [Xjtu]
Luo, Guoxi [Auteur]
Xi'an Jiaotong University [Xjtu]
Zhao, Libo [Auteur]
Xi'an Jiaotong University [Xjtu]
Boukherroub, Rabah [Auteur]
NanoBioInterfaces - IEMN [NBI - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Jiang, Zhuangde [Auteur]
Xi'an Jiaotong University [Xjtu]

Journal title :

ACS Applied Materials & Interfaces

Pages :

47595-47604

Publisher :

Washington, D.C. : American Chemical Society

Publication date :

2022-10-26

ISSN :

1944-8244

English keyword(s) :

micro-supercapacitors
carbon nanotubes
drop-coating
electrodeposition
energy storage system

HAL domain(s) :

Sciences de l'ingénieur [physics]

English abstract : [en]

Herein, hybrid micro-supercapacitors (MSCs), consisting of positive CoNi layer double hydroxides (LDHs) decorated on carbon nanotubes (CoNi LDHs@CNTs) and negative CNT electrodes, were assembled by facile drop-coated and ...
Show more >Herein, hybrid micro-supercapacitors (MSCs), consisting of positive CoNi layer double hydroxides (LDHs) decorated on carbon nanotubes (CoNi LDHs@CNTs) and negative CNT electrodes, were assembled by facile drop-coated and electrodeposition methods. The as-fabricated MSCs were optimized in view of electrochemical performance, and the CoNi LDHs-2@CNTs//CNT MSC exhibited a favorable performance and was thus chosen to be the candidate for MSC device package. The packaged CoNi LDHs-2@CNTs//CNT MSC demonstrated a large areal capacitance of 11.0 mF·cm–2 at a current density of 0.08 mA·cm–2, a good rate performance (56% areal capacitance retained at a higher current density of 0.4 mA·cm–2), and a favorable cycling stability and reversibility (92% of the original areal capacitance was retained after 5000 cycles). Furthermore, the MSC device recorded an energy density of 1.5 μWh·cm–2 at a power density of 42.5 μW·cm–2 and was successfully applied for the storage of energy supplied by solar cells to operate a red light-emitting diode. All these findings demonstrated the promising practical energy storage application of the as-fabricated hybrid MSC devices in the construction of sunlight-powered energy storage systems.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

ANR Project :

Dispositifs à base de Si pour les énergies renouvelables : Recyclage et renaissance des modules photovoltaïques

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL