Journal ArticleDOI
Hierarchical FeCo2O4@polypyrrole Core/Shell Nanowires on Carbon Cloth for High-Performance Flexible All-Solid-State Asymmetric Supercapacitors
Xinyi He,Yunhe Zhao,Rongrong Chen,Hongsen Zhang,Jingyuan Liu,Qi Liu,Dalei Song,Rumin Li,Jun Wang +8 more
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In this article, the core/shell heterostructures electrodes are considered as a promising strategy to enhance the electrochemical property of the supercapacitors, and the authors demonstrate their performance.Abstract:
Fabrication and design of core/shell heterostructures electrodes are considered as a promising strategy to enhance the electrochemical property of the supercapacitors. In this study, we demonstrate...read more
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True Meaning of Pseudocapacitors and Their Performance Metrics: Asymmetric versus Hybrid Supercapacitors
Nilesh R. Chodankar,Hong Duc Pham,Ashok Kumar Nanjundan,Joseph F. S. Fernando,Kolleboyina Jayaramulu,Dmitri Golberg,Young-Kyu Han,Deepak P. Dubal +7 more
TL;DR: A method to distinguish battery-type and pseudocapacitive materials using the electrochemical signatures and quantitative kinetics analysis is outlined, and the distinction between asymmetric and hybrid supercapacitors is discussed.
Journal ArticleDOI
Metal oxide-based supercapacitors: progress and prospectives
TL;DR: In this paper, the principal elements affecting the properties of bimetallic oxide electrodes are investigated to reveal the relevant energy storage mechanisms, and the progress, development and improvement of multifarious devices are emphasized systematically, covering from an asymmetric to hybrid configuration, and from aqueous to non-aqueous systems.
Journal ArticleDOI
NiCoP nanowire@NiCo-layered double hydroxides nanosheet heterostructure for flexible asymmetric supercapacitors
TL;DR: In this article, a 3D hierarchical NiCoP@NiCo-LDH core/shell heterostructure on conductive carbon cloth (CC) was proposed to improve the performance of energy storage materials.
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Transition metal oxide-based electrode materials for flexible supercapacitors: A review
Seyed Ali Delbari,Laleh Saleh Ghadimi,Raha Hadi,Sana Farhoudian,Maryam Nedaei,Aziz Babapoor,Abbas Sabahi Namini,Quyet Van Le,Mohammadreza Shokouhimehr,Mehdi Shahedi Asl,Mohsen Mohammadi +10 more
TL;DR: The present document aims to provide a brief collection of the latest outcomes about several electrode materials of flexible supercapacitors based on TMOs and present this review by categories.
Journal ArticleDOI
Recent Advances of Asymmetric Supercapacitors
Nannan Wu,Xue Bai,Duo Pan,Duo Pan,Binbin Dong,Renbo Wei,Nithesh Naik,Rahul Rangrao Patil,Zhanhu Guo +8 more
TL;DR: In this article, the authors classified asymmetric supercapacitors into two types based on different charge storage mechanisms: electric double-layer capacitive (EDLC)//pseudocapacitive-type ASCs and EDLC/battery-type hybrid SCs.
References
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Journal ArticleDOI
Analysis of XPS spectra of Fe2+ and Fe3+ ions in oxide materials
Toru Yamashita,Peter C. Hayes +1 more
TL;DR: In this paper, the peak positions and peak shape parameters of Fe 3p for Fe2+ and Fe3+ were derived from the XPS spectra of the standard samples of 2FeO·SiO2 and Fe2O3, respectively.
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High-rate electrochemical energy storage through Li+ intercalation pseudocapacitance
Veronica Augustyn,Jeremy Come,Jeremy Come,Michael A. Lowe,J. W. Kim,Pierre-Louis Taberna,Pierre-Louis Taberna,Sarah H. Tolbert,Héctor D. Abruña,Patrice Simon,Patrice Simon,Bruce Dunn +11 more
TL;DR: This work quantifies the kinetics of charge storage in T-Nb2O5: currents that vary inversely with time, charge-storage capacity that is mostly independent of rate, and redox peaks that exhibit small voltage offsets even at high rates.
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Review on supercapacitors: Technologies and materials
TL;DR: In this article, the technologies and working principles of different materials used in supercapacitors are explained, together with brief explanations of their properties, such as specific surface area and capacitance values.
Journal ArticleDOI
Mixed transition-metal oxides: design, synthesis, and energy-related applications.
TL;DR: Recent research advances in the rational design and efficient synthesis of MTMOs with controlled shapes, sizes, compositions, and micro-/nanostructures are summarized, along with their applications as electrode materials for lithium-ion batteries and electrochemical capacitors, and efficient electrocatalysts for the oxygen reduction reaction in metal-air batteries and fuel cells.
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Advanced Asymmetric Supercapacitors Based on Ni(OH)2/Graphene and Porous Graphene Electrodes with High Energy Density
Jun Yan,Zhuangjun Fan,Wei Sun,Guoqing Ning,Tong Wei,Qiang Zhang,Rufan Zhang,Linjie Zhi,Fei Wei +8 more
TL;DR: In this paper, a high-voltage asymmetric supercapacitor is successfully fabricated using Ni(OH)2/graphene and porous graphene as the positive and negative electrodes, respectively.