Investigation of the Degradation of Metallic Lithium Electrode Protected By Bilayer Solid Electrolyte in Lithium-Oxygen Batteries

2016 ◽  
Keyword(s):  
Solid Electrolyte ◽  
Lithium Electrode ◽  
Metallic Lithium ◽  
Lithium Oxygen Batteries

Insights into degradation of metallic lithium electrodes protected by a bilayer solid electrolyte based on aluminium substituted lithium lanthanum titanate in lithium-air batteries

2016 ◽  
Vol 4 (28) ◽  
pp. 11124-11138 ◽  
Author(s):  
Hang T. T. Le ◽  
Duc Tung Ngo ◽  
Van-Chuong Ho ◽  
Guozhong Cao ◽  
Choong-Nyeon Park ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Term Operation ◽  
Lithium Electrode ◽  
Lithium Lanthanum Titanate ◽  
Metallic Lithium ◽  
Lanthanum Titanate ◽  
Lithium Air Batteries

Long-term operation of rechargeable Li–O2batteries can be attainable using a lithium electrode protected by an A-LLTO/LiPON bilayer solid electrolyte.

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

Graphene oxide modified metallic lithium electrode and its electrochemical performances in lithium–sulfur full batteries and symmetric lithium–metal coin cells

RSC Advances ◽  
2016 ◽  
Vol 6 (70) ◽  
pp. 66161-66168 ◽  
Author(s):  
Yi-jun Zhang ◽  
Xin-hui Xia ◽  
Xiu-li Wang ◽  
Chang-dong Gu ◽  
Jiang-ping Tu
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performances ◽  
Lithium Metal ◽  
Lithium Electrode ◽  
Metallic Lithium ◽  
Lithium Sulfur

In this work, GO layers are successfully fabricated on the surface of lithium metal by a facile automatic spreading method. The GO/Li electrode displays enhanced electrochemical performances than the unmodified pure Li electrode.

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