Enhanced safety and galvanostatic performance of high voltage lithium batteries by using ionic liquids

2019 ◽  
Vol 316 ◽  
pp. 1-7 ◽  
Author(s):  
Akiko Tsurumaki ◽  
Marco Agostini ◽  
Ruggero Poiana ◽  
Lucia Lombardo ◽  
Ernestino Lufrano ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
High Voltage ◽  
Lithium Batteries

Bis(oxalato)borate and difluoro(oxalato)borate-based ionic liquids as electrolyte additives to improve the capacity retention in high voltage lithium batteries

2019 ◽  
Vol 315 ◽  
pp. 17-23 ◽  
Author(s):  
Akiko Tsurumaki ◽  
Mario Branchi ◽  
Alessio Rigano ◽  
Ruggero Poiana ◽  
Stefania Panero ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
High Voltage ◽  
Lithium Batteries ◽  
Capacity Retention ◽  
Electrolyte Additives

Improved interfacial chemistry and enhanced high voltage-resistant capability of in-situ polymerized electrolyte for LiNi0.8Co0.15Al0.05O2-Li batteries

2021 ◽  
Author(s):  
Yue Ma ◽  
Qifang Sun ◽  
Zhenyu Wang ◽  
Su Wang ◽  
Ying Zhou ◽  
...  
Keyword(s):  
Energy Density ◽  
High Voltage ◽  
Lithium Batteries ◽  
Interfacial Chemistry ◽  
Layered Oxide ◽  
Li Batteries

Ni-rich layered oxide LiNi0.8Co0.15Al0.05O2 (NCA) is one of the most promising cathode candidates for higher energy density lithium batteries. However, the extensive application of NCA is hindered due to the...

scholarly journals Realizing poly(ethylene oxide) as a polymer for solid electrolytes in high voltage lithium batteries via simple modification of the cell setup

2021 ◽  
Author(s):  
Lukas Stolz ◽  
Gerrit Homann ◽  
Martin Winter ◽  
Johannes Kasnatscheew
Keyword(s):  
Ethylene Oxide ◽  
High Voltage ◽  
Lithium Batteries ◽  
Polymer Electrolytes ◽  
Solid Electrolytes ◽  
Simple Modification ◽  
Poly Ethylene Oxide ◽  
Benchmark System ◽  
Short Circuits ◽  
Poly Ethylene

Cell failure of polymer electrolytes is rather the result of short circuits instead of assumed electrolyte oxidation. A spacer with a constant and defined distance can avoid this failure, thus realize a benchmark system for a more systematic R&D.

scholarly journals Biocompatible and biodegradable solid polymer electrolytes for high voltage and high temperature lithium batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (40) ◽  
pp. 24856-24863 ◽  
Author(s):  
Yue Lin ◽  
Yun Cheng ◽  
Jie Li ◽  
Jan D. Miller ◽  
Jin Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Wheat Flour ◽  
High Voltage ◽  
Lithium Batteries ◽  
Polymer Electrolytes ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer

Wheat flour modified solid polymer electrolytes were synthesized and used in high safety and long cycling lithium batteries.

Patterning and a Composite Protective Layer Provide Modified Li Metal Anodes for Dendrite-Free High-Voltage Solid-State Lithium Batteries

2021 ◽  
Author(s):  
Chelladurai Karuppiah ◽  
Shimelis Lemma Beshahwured ◽  
Yi-Shiuan Wu ◽  
Lakshmipriya Musuvadhi Babulal ◽  
Kumlachew Zelalem Walle ◽  
...  
Keyword(s):  
Solid State ◽  
High Voltage ◽  
Lithium Batteries ◽  
Protective Layer ◽  
Metal Anodes

High‐Voltage and High‐Safety Practical Lithium Batteries with Ethylene Carbonate‐Free Electrolyte

2021 ◽  
pp. 2102299
Author(s):  
Yu Wu ◽  
Dongsheng Ren ◽  
Xiang Liu ◽  
Gui‐Liang Xu ◽  
Xuning Feng ◽  
...  
Keyword(s):  
High Voltage ◽  
Lithium Batteries ◽  
Ethylene Carbonate

scholarly journals Performances of different DFT functionals to calculate the anodic limit of fluorinated sulphonyl-imide anions for lithium cells

2021 ◽  
Vol 2090 (1) ◽  
pp. 012078
Author(s):  
A Paolone ◽  
S Brutti
Keyword(s):  
Ionic Liquids ◽  
Lithium Batteries ◽  
Basis Set ◽  
Basis Sets ◽  
Computational Time ◽  
Generalized Gradient ◽  
Neutral Species ◽  
Generalized Gradient Approximation ◽  
Model Based ◽  
Computationally Expensive

Abstract In this paper we investigated the calculation of the anodic limit of two anions of ionic liquids, largely used as electrolyte of lithium batteries. Starting from a model based on calculations performed on single ions at the MP2 level of theory, we showed that the matching between calculation and experiments decreases while using more expanded basis set with respect to 6-31G**, possibly because of the destabilization of the neutral species when larger basis sets are considered. Additionally, in order to decrease the computational time, the performances for the calculation of the anodic limit obtained by means of a series of DFT functionals with increasing level of complexity (from the Generalized Gradient Approximation to the Range Separated Hybrid meta-Generalized Gradient Approximation) were compared. Overall, the best performing functionals are BMK, ωB97M-V and MN12-SX, while acceptable results can be obtained by M06-2X, M11, M08-HX and M11-L. Some less computationally expensive functionals, like CAM-B3LYP and ωB97X-D, also provide reasonable values of the anodic limit.

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