scholarly journals Lithium-Metal Foil Surface Modification: An Effective Method to Improve the Cycling Performance of Lithium-Metal Batteries

2017 ◽  
Vol 4 (16) ◽  
pp. 1700166 ◽  
Author(s):  
Jens Becking ◽  
Albert Gröbmeyer ◽  
Martin Kolek ◽  
Uta Rodehorst ◽  
Susanne Schulze ◽  
...  
Keyword(s):  
Surface Modification ◽  
Cycling Performance ◽  
Metal Foil ◽  
Lithium Metal ◽  
Foil Surface ◽  
Lithium Metal Batteries

3D structural lithium alginate-based gel polymer electrolytes with superior high rate long cycling performance for High-energy lithium metal batteries

2021 ◽  
Author(s):  
Xin Wen ◽  
Qinghui Zeng ◽  
Jiazhu Guan ◽  
Wen Wen ◽  
Pingping Chen ◽  
...  
Keyword(s):  
Polymer Electrolyte ◽  
Polymer Electrolytes ◽  
Cycling Performance ◽  
High Energy ◽  
High Rate ◽  
Solid Polymer ◽  
Lithium Metal ◽  
Natural Polymer ◽  
High Mechanical Strength ◽  
Lithium Metal Batteries

The development of polymer electrolyte with good ion transport capacity and high mechanical strength is a big challenge for solid polymer electrolyte. Herein, a natural polymer-based gel electrolyte (GPE) with...

Enhanced cycling stability of high-voltage lithium metal batteries with a trifunctional electrolyte additive

2020 ◽  
Vol 8 (42) ◽  
pp. 22054-22064 ◽  
Author(s):  
Huiyang Chen ◽  
Jiawei Chen ◽  
Wenguang Zhang ◽  
Qiming Xie ◽  
Yanxia Che ◽  
...  
Keyword(s):  
High Voltage ◽  
Cycling Performance ◽  
Cycling Stability ◽  
Lithium Metal ◽  
Electrolyte Additive ◽  
Lithium Metal Batteries

Excellent cycling performance of 5 V lithium metal batteries is successfully achieved via applying a trifunctional electrolyte additive, TTS.

scholarly journals Effect of surface modification and laser repetition rate on growth, structural, electronic and optical properties of GaN nanorods on flexible Ti metal foil

RSC Advances ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 2113-2122 ◽  
Author(s):  
Ch. Ramesh ◽  
P. Tyagi ◽  
J. Kaswan ◽  
B. S. Yadav ◽  
A. K. Shukla ◽  
...  
Keyword(s):  
Optical Properties ◽  
Surface Modification ◽  
Repetition Rate ◽  
Molecular Beam ◽  
Molecular Beam Epitaxy Growth ◽  
Metal Foil ◽  
Foil Surface ◽  
Laser Repetition Rate ◽  
Electronic And Optical Properties ◽  
Effect Of Surface

The effect of flexible Ti metal foil surface modification and laser repetition rate in laser molecular beam epitaxy growth process on the evolution of GaN nanorods and their structural, electronic and optical properties has been investigated.

scholarly journals Safe and Stable Lithium Metal Batteries Enabled by an Amide-Based Electrolyte

2022 ◽  
Vol 14 (1) ◽  
Author(s):  
Wanbao Wu ◽  
Yiyang Bo ◽  
Deping Li ◽  
Yihong Liang ◽  
Jichuan Zhang ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Room Temperature ◽  
Solid Electrolyte Interphase ◽  
Cycling Performance ◽  
Lithium Metal ◽  
Functional Theory ◽  
Lithium Metal Batteries ◽  
Dynamics Simulations

Highlights A novel amide-based nonflammable electrolyte is proposed. The formation mechanism and solvation chemistry are investigated by molecular dynamics simulations and density functional theory. An inorganic/organic-rich solid electrolyte interphase with an abundance of LiF, Li3N and Li–N–C is in situ formed, leading to spherical lithium deposition. The amide-based electrolyte can enable stable cycling performance at room temperature and 60 ℃. Abstract The formation of lithium dendrites and the safety hazards arising from flammable liquid electrolytes have seriously hindered the development of high-energy-density lithium metal batteries. Herein, an emerging amide-based electrolyte is proposed, containing LiTFSI and butyrolactam in different molar ratios. 1,1,2,2-Tetrafluoroethyl-2,2,3,3-tetrafluoropropylether and fluoroethylene carbonate are introduced into the amide-based electrolyte as counter solvent and additives. The well-designed amide-based electrolyte possesses nonflammability, high ionic conductivity, high thermal stability and electrochemical stability (> 4.7 V). Besides, an inorganic/organic-rich solid electrolyte interphase with an abundance of LiF, Li3N and Li–N–C is in situ formed, leading to spherical lithium deposition. The formation mechanism and solvation chemistry of amide-based electrolyte are further investigated by molecular dynamics simulations and density functional theory. When applied in Li metal batteries with LiFePO4 and LiMn2O4 cathode, the amide-based electrolyte can enable stable cycling performance at room temperature and 60 ℃. This study provides a new insight into the development of amide-based electrolytes for lithium metal batteries.

scholarly journals Optimized Interfaces in Anti-Perovskite Electrolyte-Based Solid-State Lithium Metal Batteries for Enhanced Performance

2021 ◽  
Vol 9 ◽  
Author(s):  
Pengcheng Yu ◽  
Yu Ye ◽  
Jinlong Zhu ◽  
Wei Xia ◽  
Yusheng Zhao
Keyword(s):  
Solid State ◽  
Cycling Performance ◽  
High Energy ◽  
Internal Resistance ◽  
Consumer Electronics ◽  
High Energy Density ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Batteries ◽  
The Poor

Solid-state lithium metal batteries have attracted broad interest as a promising energy storage technology because of the high energy density and enhanced safety that are highly desired in the markets of consumer electronics and electric vehicles. However, there are still many challenges before the practical application of the new battery. One of the major challenges is the poor interface between lithium metal electrodes and solid electrolytes, which eventually lead to the exceptionally high internal resistance of the cells and limited output. The interface issue arises largely due to the poor contact between solid and solid, and the mechanical/electrochemical instability of the interface. In this work, an in situ “welding” strategy is developed to address the interfacial issue in solid-state batteries. Microliter-level of liquid electrolyte is transformed into an organic–inorganic composite buffer layer, offering a flexible and stable interface and promoting enhanced electrochemical performance. Symmetric lithium–metal batteries with the new interface demonstrate good cycling performance for 400 h and withstand the current density of 0.4 mA cm−2. Full batteries developed with lithium–metal anode and LiFePO4 cathode also demonstrate significantly improved cycling endurance and capacity retention.

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