Flexible Artificial Solid Electrolyte Interphase Formed by 1,3-Dioxolane Oxidation and Polymerization for Metallic Lithium Anodes

2018 ◽  
Vol 11 (2) ◽  
pp. 2479-2489 ◽  
Author(s):  
Cheng Li ◽  
Qing Lan ◽  
Yifu Yang ◽  
Huixia Shao ◽  
Hui Zhan
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Metallic Lithium

scholarly journals Solid electrolyte interphase formation on metallic lithium

2012 ◽  
Vol 16 (10) ◽  
pp. 3391-3397 ◽  
Author(s):  
Andrzej Lewandowski ◽  
Agnieszka Swiderska-Mocek ◽  
Lukasz Waliszewski
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Metallic Lithium

scholarly journals Reduction Mechanism of Solid Electrolyte Interphase Formation on Lithium Metal Anode: Fluorine-Rich Electrolyte

2021 ◽  
Author(s):  
Yu Wu ◽  
Qintao Sun ◽  
Yue Liu ◽  
Peiping Yu ◽  
Bingyun Ma ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Rational Design ◽  
Coulombic Efficiency ◽  
Solid Electrolyte Interphase ◽  
Reduction Mechanism ◽  
Metal Anode ◽  
Formation Pathway ◽  
Metallic Lithium ◽  
Initial Reduction ◽  
Lithium Dendrites

Abstract Metallic lithium is considered a promising anode that can significantly increase the energy density of rechargeable lithium-based batteries, but problems like uncontrollable growth of lithium dendrites and formation of dead lithium impede its application. Recently, a low-concentration single-salt two-solvent electrolyte, 1M LiTFSI/FDMA/FEC, has attracted attention because a high coulombic efficiency can be achieved even after many cycles owing to the formation of a robust solid electrolyte interface (SEI). However, the reaction mechanism and SEI structure remain unclear, posing significant challenges for further improvement. Here, a hybrid ab initio and reactive force field (HAIR) method revealed the underlying reaction mechanisms and detailed formation pathway. 1 ns HAIR simulation provides critical information on the initial reduction mechanism of solvent (FDMA and FEC) and salt (LiTFSI). FDMA and FEC quickly decompose to provide F- that builds LiF as the major component of the inner layer of inorganic SEI, which has been demonstrated to protect Li anode. Decomposition of FDMA also leads to a significant nitrogen-containing composition, producing Li-N-C, LixN, and other organic components that increase the conductivity of SEI to increase performance. XPS analysis confirms evolution of SEI morphology consistent with available experiments. These results provide atomic insight into SEI formation, which should be beneficial for the rational design of advanced electrolytes

Unveiling the Formation of Solid Electrolyte Interphase and its Temperature Dependence in “Water-in-Salt” Supercapacitors

2021 ◽  
Vol 13 (3) ◽  
pp. 3979-3990
Author(s):  
Ting Quan ◽  
Eneli Härk ◽  
Yaolin Xu ◽  
Ibbi Ahmet ◽  
Christian Höhn ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Temperature Dependence ◽  
Solid Electrolyte Interphase

Reactivity and Evolution of Ionic Phases in the Lithium Solid–Electrolyte Interphase

2021 ◽  
pp. 877-885
Author(s):  
Rui Guo ◽  
Dongniu Wang ◽  
Lucia Zuin ◽  
Betar M. Gallant
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase

scholarly journals Probing the Na metal solid electrolyte interphase via cryo-transmission electron microscopy

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Bing Han ◽  
Yucheng Zou ◽  
Zhen Zhang ◽  
Xuming Yang ◽  
Xiaobo Shi ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Metal Electrode ◽  
Liquid Electrolyte ◽  
Battery Materials ◽  
Cryogenic Transmission Electron Microscopy ◽  
Transmission Electron ◽  
Fluoroethylene Carbonate

AbstractCryogenic transmission electron microscopy (cryo-TEM) is a valuable tool recently proposed to investigate battery electrodes. Despite being employed for Li-based battery materials, cryo-TEM measurements for Na-based electrochemical energy storage systems are not commonly reported. In particular, elucidating the chemical and morphological behavior of the Na-metal electrode in contact with a non-aqueous liquid electrolyte solution could provide useful insights that may lead to a better understanding of metal cells during operation. Here, using cryo-TEM, we investigate the effect of fluoroethylene carbonate (FEC) additive on the solid electrolyte interphase (SEI) structure of a Na-metal electrode. Without FEC, the NaPF6-containing carbonate-based electrolyte reacts with the metal electrode to produce an unstable SEI, rich in Na2CO3 and Na3PO4, which constantly consumes the sodium reservoir of the cell during cycling. When FEC is used, the Na-metal electrode forms a multilayer SEI structure comprising an outer NaF-rich amorphous phase and an inner Na3PO4 phase. This layered structure stabilizes the SEI and prevents further reactions between the electrolyte and the Na metal.

scholarly journals A chemically consistent graph architecture for massive reaction networks applied to solid-electrolyte interphase formation

2021 ◽  
Author(s):  
Samuel M. Blau ◽  
Hetal D Patel ◽  
Evan Walter Clark Spotte-Smith ◽  
Xiaowei Xie ◽  
Shyam Dwaraknath ◽  
...  
Keyword(s):  
Energy Storage ◽  
Solid Electrolyte ◽  
Chemical Reaction ◽  
Solid Electrolyte Interphase ◽  
Chemical Reaction Networks ◽  
Reaction Networks ◽  
Mechanistic Understanding

Modeling reactivity with chemical reaction networks could yield fundamental mechanistic understanding that would expedite the development of processes and technologies for energy storage, medicine, catalysis, and more. Thus far, reaction...

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