In Situ Formation of Circular and Branched Oligomers in Localized High Concentration Electrolyte at Lithium−metal Solid Electrolyte Interphase: A Hybrid ab initio and Reactive Molecular Dynamics

2021 ◽  
Author(s):  
Yue Liu ◽  
Qintao Sun ◽  
Peiping Yu ◽  
Bingyun Ma ◽  
Hao Yang ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Lithium Metal ◽  
High Concentration ◽  
Metal Anode ◽  
Reactive Molecular Dynamics ◽  
Li Metal Anode ◽  
In Situ Formation

Developing advanced electrolytes has been considered as a promising approach to stabilize lithium (Li) metal anode via the formation of stable solid electrolyte interphase (SEI) that can protect Li anode...

In Situ Formed Flexible Three-Dimensional Honeycomb-like Film for LiF/Li3N-riched Hybrid Organic-Inorganic Interphase on Li Metal Anode

2021 ◽  
Author(s):  
Daobin Mu ◽  
Chengwei Ma ◽  
Ge Mu ◽  
Haijian Lv ◽  
Chengcai Liu ◽  
...  
Keyword(s):  
Solid Electrolyte Interphase ◽  
Three Dimensional ◽  
High Energy ◽  
Liquid Electrolyte ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Li Metal Anode ◽  
Storage Batteries

The solid-electrolyte interphase (SEI) plays an important role in stabilizing lithium metal anode for high-energy storage batteries. However, the SEI between lithium metal anode and liquid electrolyte is usually unstable...

Stabilization of Lithium-Metal Batteries Based on the in Situ Formation of a Stable Solid Electrolyte Interphase Layer

2018 ◽  
Vol 10 (21) ◽  
pp. 17985-17993 ◽  
Author(s):  
Seong-Jin Park ◽  
Jang-Yeon Hwang ◽  
Chong S. Yoon ◽  
Hun-Gi Jung ◽  
Yang-Kook Sun
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Interphase Layer ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
In Situ Formation

Regulated Lithium Plating and Stripping by a Nano-Scale Gradient Inorganic-Organic Coating for Stable Lithium Metal Anodes

2021 ◽  
Author(s):  
Yipeng Sun ◽  
Changtai Zhao ◽  
Keegan Adair ◽  
Yang Zhao ◽  
Lyudmila Goncharova ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Organic Coating ◽  
Lithium Metal ◽  
Metal Anode ◽  
Nano Scale ◽  
Lithium Metal Anodes ◽  
Li Metal Anode ◽  
Metal Anodes

An intrinsic challenge of Li metal anode (LMA) that hinders its application is the formation of unstable solid electrolyte interphase (SEI), which causes uncontrollable Li plating/stripping and deteriorates the cycling...

scholarly journals Artificial dual solid-electrolyte interfaces based on in situ organothiol transformation in lithium sulfur battery

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Wei Guo ◽  
Wanying Zhang ◽  
Yubing Si ◽  
Donghai Wang ◽  
Yongzhu Fu ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Interface Reaction ◽  
Interfacial Instability ◽  
Anode Surface ◽  
Commercial Application ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Lithium Sulfur

AbstractThe interfacial instability of the lithium-metal anode and shuttling of lithium polysulfides in lithium-sulfur (Li-S) batteries hinder the commercial application. Herein, we report a bifunctional electrolyte additive, i.e., 1,3,5-benzenetrithiol (BTT), which is used to construct solid-electrolyte interfaces (SEIs) on both electrodes from in situ organothiol transformation. BTT reacts with lithium metal to form lithium 1,3,5-benzenetrithiolate depositing on the anode surface, enabling reversible lithium deposition/stripping. BTT also reacts with sulfur to form an oligomer/polymer SEI covering the cathode surface, reducing the dissolution and shuttling of lithium polysulfides. The Li–S cell with BTT delivers a specific discharge capacity of 1,239 mAh g−1 (based on sulfur), and high cycling stability of over 300 cycles at 1C rate. A Li–S pouch cell with BTT is also evaluated to prove the concept. This study constructs an ingenious interface reaction based on bond chemistry, aiming to solve the inherent problems of Li–S batteries.

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