Mesoporous NH4NiPO4·H2O for High-Performance Flexible All-Solid-State Asymmetric Supercapacitors

Yong Liu; Yong Liu; Xiaoliang Zhai; Keke Yang; Fei Wang; Huijie Wei; Wanhong Zhang; Fengzhang Ren; Huan Pang

doi:10.3389/fchem.2019.00118

Frontiers in Chemistry (Mar 2019)

Mesoporous NH4NiPO4·H2O for High-Performance Flexible All-Solid-State Asymmetric Supercapacitors

Yong Liu,
Yong Liu,
Xiaoliang Zhai,
Keke Yang,
Fei Wang,
Huijie Wei,
Wanhong Zhang,
Fengzhang Ren,
Huan Pang

Affiliations

Yong Liu: Collaborative Innovation Center of Nonferrous Metals of Henan Province, Henan Key Laboratory of High-Temperature Structural and Functional Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Yong Liu: Henan Key Laboratory of Non-Ferrous Materials Science & Processing Technology, Henan University of Science and Technology, Luoyang, China
Xiaoliang Zhai: Collaborative Innovation Center of Nonferrous Metals of Henan Province, Henan Key Laboratory of High-Temperature Structural and Functional Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Keke Yang: Collaborative Innovation Center of Nonferrous Metals of Henan Province, Henan Key Laboratory of High-Temperature Structural and Functional Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Fei Wang: Collaborative Innovation Center of Nonferrous Metals of Henan Province, Henan Key Laboratory of High-Temperature Structural and Functional Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Huijie Wei: Collaborative Innovation Center of Nonferrous Metals of Henan Province, Henan Key Laboratory of High-Temperature Structural and Functional Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Wanhong Zhang: Collaborative Innovation Center of Nonferrous Metals of Henan Province, Henan Key Laboratory of High-Temperature Structural and Functional Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Fengzhang Ren: Collaborative Innovation Center of Nonferrous Metals of Henan Province, Henan Key Laboratory of High-Temperature Structural and Functional Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Huan Pang: School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China

DOI: https://doi.org/10.3389/fchem.2019.00118
Journal volume & issue: Vol. 7

Abstract

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Nowadays, wearable energy storage devices have been growing rapidly, but flexible systems with both excellent cycling stability and decent flexibility are still challenging. In this work, a flexible all-solid-state NH4NiPO4·H2O//graphene supercapacitor with remarkable performance was successfully assembled. When cycled at a current density of 5 mA cm−2, the device delivered 121 mF cm−2, and showed good cycling stability after 3,000 cycles. Moreover, the all-solid-state NH4NiPO4·H2O//graphene supercapacitor also exhibit high mechanical flexibility with well-maintained specific capacitance, even under bending to arbitrary angles (up to 180°) and different weights (up to 50 g).

Published in Frontiers in Chemistry

ISSN: 2296-2646 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: http://journal.frontiersin.org/journal/chemistry

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