Results 1 to 10 of about 5,233,506 (296)

Salt concentration and charging velocity determine ion charge storage mechanism in nanoporous supercapacitors [PDF]

Nature Communications, 2018
To improve supercapacitor performance, mechanisms of operation should be understood. Here the authors identify parameters controlling ion charge storage mechanisms and show that charging initially implies a non-equilibrium ion configuration followed by ...
C. Prehal, C. Koczwara, H. Amenitsch, V. Presser, O. Paris   +4 more
doaj   +5 more sources

A fast-charging/discharging and long-term stable artificial electrode enabled by space charge storage mechanism [PDF]

Nature Communications
Lithium‐ion batteries with fast-charging/discharging properties are urgently needed for the mass adoption of electric vehicles. Here, we show that fast charging/discharging, long-term stable and high energy charge-storage properties can be realized in an
Linyi Zhao, Tiansheng Wang, Fengkai Zuo, Zhengyu Ju, Yuhao Li, Qiang Li, Yue Zhu, Hongsen Li, Guihua Yu   +8 more
doaj   +3 more sources

Charge-Storage Mechanism of Aluminum-Sulfur Batteries [PDF]

ECS Meeting Abstracts, 2020
The electrochemical performance of aluminum-sulfur batteries is beset by poor stability and sluggish charge-storage properties. To address these issues, carbon allotropes have been used as electrode fillers, but successful outcomes remain inexplicably elusive.
Jasmin Smajic, Shianlin Wee, Filipa R. Fernandes Simoes, Mohamed N. Hedhili, Nimer Wehbe, Edy Abou-Hamad, Pedro M.F.J. Costa   +6 more
openaire   +3 more sources

Polymers of Intrinsic Microporosity as Organic Cathodes for Fast‐Charging Lithium‐Ion Batteries [PDF]

Small Science
Developing fast‐charging electrodes requires understanding how polymer architecture governs ion‐transport, redox‐site accessibility, and charge‐storage mechanism.
Eva Vásquez‐Barillas, Ani N. Davis, A M Mahmudul Hasan, Amrit Kaur, Swapnanil Goswami, Kiana A. Treaster, Kausturi Parui, John D. Langhout, Rachel H. Bianculli, Joshua D. Marquez, Gabriel Carson, Austin M. Evans, Megan M. Butala   +12 more
doaj   +2 more sources

Electron paramagnetic resonance as a tool to determine the sodium charge storage mechanism of hard carbon [PDF]

Nature Communications
Hard carbon is a promising negative electrode material for rechargeable sodium-ion batteries due to the ready availability of their precursors and high reversible charge storage. The reaction mechanisms that drive the sodiation properties in hard carbons
Bin Wang, Jack R. Fitzpatrick, Adam Brookfield, Alistair J. Fielding, Emily Reynolds, Jake Entwistle, Jincheng Tong, Ben F. Spencer, Sara Baldock, Katherine Hunter, Christopher M. Kavanagh, Nuria Tapia-Ruiz   +11 more
doaj   +2 more sources

In situ NMR spectroscopy of supercapacitors: insight into the charge storage mechanism. [PDF]

J Am Chem Soc, 2013
Electrochemical capacitors, commonly known as supercapacitors, are important energy storage devices with high power capabilities and long cycle lives. Here we report the development and application of in situ nuclear magnetic resonance (NMR) methodologies to study changes at the electrode-electrolyte interface in working devices as they charge and ...
Wang H, Forse AC, Griffin JM, Trease NM, Trognko L, Taberna PL, Simon P, Grey CP.   +7 more
europepmc   +6 more sources

Real‐Time Investigation of Interfacial Evolution in Electrochemical Energy Storage Systems via EQCM [PDF]

Advanced Science
Understanding the structure and formation process of the electrode/electrolyte interface (EEI) is crucial for electrochemical energy storage research.
Zixuan Wang, Situo Cheng, Guang Feng
doaj   +2 more sources

Computational Insights into Charge Storage Mechanisms of Supercapacitors [PDF]

ENERGY & ENVIRONMENTAL MATERIALS, 2020
Computational modeling methods, including molecular dynamics (MD) and Monte Carlo (MC) simulations, and density functional theory (DFT), are receiving booming interests for exploring charge storage mechanisms of electrochemical energy storage devices.
Xu, Kui, Shao, Hui, Lin, Zifeng, Merlet, Céline, Feng, Guang, Zhu, Jixin, Simon, Patrice   +6 more
openaire   +3 more sources

The effects of local graphitization on the charging mechanisms of microporous carbon supercapacitor electrodes

Electrochemistry Communications, 2022
The electrochemical quartz crystal microbalance (EQCM) technique has been used to study the charge mechanisms in two TiC-derived nanoporous carbons (CDC), synthesized at 800 ℃ and 1100 ℃.
Huan Yin, Hui Shao, Barbara Daffos, Pierre-Louis Taberna, Patrice Simon   +4 more
doaj   +1 more source

In situ magnetometry study on the origin of anomalously capacity in transition metal sulfides

ChemPhysMater, 2023
Cobalt sulfides are considered as promising candidates for lithium-ion battery (LIB) anode materials with high energy densities. Their energy storage mechanism is widely understood to involve the traditional intercalation and conversion reaction. However,
Yan Liu, Yuanyuan Han, Shuxuan Liao, Fangchao Gu, Hengjun Liu, Xixiang Xu, Zhiqiang Zhao, Xiancheng Sang, Qinghao Li, Weijin Kong, Qiang Li   +10 more
doaj   +1 more source