Theoretical pulse charge for the optimal inhibition of growing dendrites

MRS Advances ◽  
2018 ◽  
Vol 3 (22) ◽  
pp. 1201-1207 ◽  
Author(s):  
Asghar Aryanfar ◽  
Daniel J. Brooks ◽  
William A. Goddard
Keyword(s):  
Dendritic Growth ◽  
Large Time ◽  
Growth Dynamics ◽  
High Energy ◽  
High Energy Density ◽  
Pulse Charge ◽  
Analytical Criterion ◽  
Continuum Scale ◽  
The Continuum

ABSTRACTDendritic growth during charging period is one of the main barriers for the rechargeablity of conventional batteries. Additionally this phenomenon hinders the utilization of high energy density metal candidates by limiting the safety and allowable operating condition for these devices. We address the role of square wave pulse on the growth dynamics of dendrites in the continuum scale and large time periods by formulating an analytical criterion. Our dimension-free analysis permits the application our results to a variety of electrochemical systems in diverse scales.

Two-Dimension Porous Conjugated Porphyrin Polymer for Uniform Lithium Deposition

2021 ◽  
Author(s):  
Chunhua Li ◽  
Yu Gu ◽  
Yingbin Wang ◽  
Bing Sun ◽  
Hong Shang
Keyword(s):  
Energy Density ◽  
Dendritic Growth ◽  
High Energy ◽  
High Energy Density ◽  
Lithium Metal ◽  
Two Dimension ◽  
Metallic Lithium ◽  
Lithium Deposition ◽  
Lithium Metal Battery

Uniform lithium deposition is benefit to achieving high-energy-density lithium metal battery. There are many effective methods to suppress the dendritic growth of metallic lithium and promote the application of the...

scholarly journals Synergistic Effects of Salt Concentration and Working Temperature towards Dendrite-Free Lithium Deposition

Research ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Panlong Li ◽  
Chao Li ◽  
Yang Yang ◽  
Chanyuan Zhang ◽  
Renhe Wang ◽  
...  
Keyword(s):  
Dendritic Growth ◽  
Synergistic Effects ◽  
Coulombic Efficiency ◽  
Side Reaction ◽  
High Energy ◽  
Optical Microscope ◽  
High Energy Density ◽  
Metal Anode ◽  
Working Temperature ◽  
Charge Discharge

The lithium- (Li-) metal anode is crucial for developing high-energy-density batteries, while its dendritic growth and the low charge/discharge Coulombic efficiency in organic electrolytes hinder its practical application. Herein, we employed an in situ optical microscope to investigate the effect of the electrolyte concentration and the working temperature on the Li-plating/-stripping process. It is found that a higher concentration electrolyte can suppress its side reaction to improve the charge/discharge Coulombic efficiency, and a higher temperature can help lithium plate/strip uniformly with less lithium dendritic growth. An average Coulombic efficiency was obtained as high as 99.2% for over 150 cycles with a fixed plating capacity of 2 mAh cm-2 on copper foil in a 3 mol/kg ether-based electrolyte under 60°C, which provides an efficient and facile strategy for developing high-performance Li-metal batteries.

Toward dendrite-free alkaline zinc-based rechargeable batteries: A minireview

2019 ◽  
Vol 12 (05) ◽  
pp. 1930004 ◽  
Author(s):  
Xin Cao ◽  
Huan Xia ◽  
Xiangyu Zhao
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Dendritic Growth ◽  
Low Cost ◽  
Electrical Energy ◽  
High Energy ◽  
Rechargeable Batteries ◽  
High Energy Density ◽  
Electrode Design ◽  
Electrical Energy Storage

Alkaline zinc-based rechargeable batteries (AZRBs) are competitive candidates for future electrical energy storage because of their low-cost, eco-friendliness and high energy density. However, plagued by dendrites, the AZRBs suffer from drastic decay in electrochemical properties and safety. This review elucidates fundamentals of zinc dendritic formation and summarizes the strategies, including electrode design and modification, electrolyte optimization and separator improvement, for suppressing zinc dendritic growth.

Carbon-rich Conjugated Framework PTEB Modified Cu Nanowires for Stabilizing Lithium Metal Anode

2021 ◽  
Author(s):  
Shan Yang ◽  
Ru Xiao ◽  
Tongwei Zhang ◽  
Yuan Li ◽  
Benhe Zhong ◽  
...  
Keyword(s):  
Energy Density ◽  
Dendritic Growth ◽  
Coulombic Efficiency ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Lithium Metal ◽  
Metal Anode ◽  
Cu Nanowires ◽  
Lithium Metal Anode

Lithium metal anode provides a direction for the development of high-energy-density lithium ion batteries. In order to solve lithium dendritic growth and low Coulombic efficiency in lithium plating/stripping process, designing...

Carbon Transition‐metal Oxide Electrodes: Understanding the Role of Surface Engineering for High Energy Density Supercapacitors

2020 ◽  
Vol 15 (11) ◽  
pp. 1628-1647 ◽  
Author(s):  
Gracita M. Tomboc ◽  
Bekelcha Tesfaye Gadisa ◽  
Minki Jun ◽  
Nitin K. Chaudhari ◽  
Hern Kim ◽  
...  
Keyword(s):  
Energy Density ◽  
Transition Metal ◽  
Metal Oxide ◽  
Surface Engineering ◽  
Transition Metal Oxide ◽  
High Energy ◽  
High Energy Density ◽  
Oxide Electrodes

scholarly journals Interface modulation in multi-layered BaTiO3 nanofibers/PVDF using the PVP linker layer as an adhesive for high energy density capacitor applications

2020 ◽  
Vol 1 (4) ◽  
pp. 680-688 ◽  
Author(s):  
Prateek ◽  
Shahil Siddiqui ◽  
Ritamay Bhunia ◽  
Narendra Singh ◽  
Ashish Garg ◽  
...  
Keyword(s):  
Energy Density ◽  
Barium Titanate ◽  
Polymer Matrix ◽  
Polyvinylidene Fluoride ◽  
Polymer Nanocomposite ◽  
High Energy ◽  
High Energy Density ◽  
Interface Modulation

In this work, we have studied the role of a linker across the interface in a multi-layered polymer nanocomposite-based capacitor using barium titanate (BT) nanofibers (NFs) as nanofillers and polyvinylidene fluoride (PVDF) as the polymer matrix.

Role of Hydrogen Abstraction Reaction in Photocatalytic Decomposition of High Energy Density Materials

2016 ◽  
Vol 120 (43) ◽  
pp. 24835-24846
Author(s):  
Roman Tsyshevsky ◽  
Anton S. Zverev ◽  
Anatoly Y. Mitrofanov ◽  
Natalya N. Ilyakova ◽  
Mikhail V. Kostyanko ◽  
...  
Keyword(s):  
Energy Density ◽  
Hydrogen Abstraction ◽  
High Energy ◽  
High Energy Density ◽  
Photocatalytic Decomposition ◽  
Abstraction Reaction ◽  
High Energy Density Materials ◽  
Hydrogen Abstraction Reaction
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