Stable Surface Film Formation by Applying New Additive for Enhanced Electrochemical Stability of Lithium Metal Anode

2021 ◽  
Vol MA2021-02 (1) ◽  
pp. 64-64
Author(s):  
Oh b. Chae ◽  
Venkata A. K. Adiraju ◽  
Brett L. Lucht
Keyword(s):  
Film Formation ◽  
Surface Film ◽  
Electrochemical Stability ◽  
Lithium Metal ◽  
Metal Anode ◽  
Stable Surface ◽  
Lithium Metal Anode

Insight on lithium metal anode interphasial chemistry: Reduction mechanism of cyclic ether solvent and SEI film formation

2019 ◽  
Vol 17 ◽  
pp. 366-373 ◽  
Author(s):  
Qi Liu ◽  
Arthur Cresce ◽  
Marshall Schroeder ◽  
Kang Xu ◽  
Daobin Mu ◽  
...  
Keyword(s):  
Film Formation ◽  
Cyclic Ether ◽  
Reduction Mechanism ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Sei Film

A Protective Layer for Lithium Metal Anode: Why and How

Small Methods ◽  
2021 ◽  
pp. 2001035
Author(s):  
Zhiyuan Han ◽  
Chen Zhang ◽  
Qiaowei Lin ◽  
Yunbo Zhang ◽  
Yaqian Deng ◽  
...  
Keyword(s):  
Protective Layer ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode

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.

scholarly journals Binary PMMA/PVDF blend film modified substrate enables superior lithium metal anode for lithium batteries

2021 ◽  
Author(s):  
Yuping Wu ◽  
Xiaosong Xiong ◽  
Ruoyu Zhi ◽  
Qi Zhou ◽  
Wenqi Yan ◽  
...  
Keyword(s):  
Electrode Material ◽  
Lithium Batteries ◽  
Specific Capacity ◽  
Lithium Metal ◽  
Next Generation ◽  
Safety Hazards ◽  
Blend Film ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Metallic Lithium

Metallic lithium is an promising next generation electrode material due to its ultrahigh specific capacity and the lowest potential. However, short cycling lifespan and safety hazards have hindered the practical...

scholarly journals Interface issues of lithium metal anode for high‐energy batteries: Challenges, strategies, and perspectives

InfoMat ◽  
2021 ◽  
Vol 3 (2) ◽  
pp. 155-174
Author(s):  
Yiyao Han ◽  
Bo Liu ◽  
Zhen Xiao ◽  
Wenkui Zhang ◽  
Xiuli Wang ◽  
...  
Keyword(s):  
High Energy ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode

scholarly journals Improving Cyclability of Lithium Metal Anode via Constructing Atomic Interlamellar Ion Channel for Lithium Sulfur Battery

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Mao Yang ◽  
Nan Jue ◽  
Yuanfu Chen ◽  
Yong Wang
Keyword(s):  
Ion Channel ◽  
Coulombic Efficiency ◽  
Specific Capacity ◽  
Absorption Capacity ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Li Ion ◽  
Sulfur Battery ◽  
Rapid Transfer

AbstractUniform migration of lithium (Li) ions between the separator and the lithium anode is critical for achieving good quality Li deposition, which is of much significance for lithium metal battery operation, especially for Li–sulfur (Li–S) batteries. Commercial separators such as polypropylene or polyethylene can be prepared by wet or dry processes, but they can indeed cause plentiful porosities, resulting in the uneven Li ion stripping/plating and finally the formation of Li dendrites. Thence, we constructed an atomic interlamellar ion channel by introducing the layered montmorillonite on the surface of the separator to guide Li ion flux and achieved stable Li deposition. The atomic interlamellar ion channel with a spacing of 1.4 nm showed strong absorption capacity for electrolytes and reserved capacity for Li ions, thus promoting rapid transfer of Li ions and resulting in even Li ion deposition at the anode. When assembled with the proposed separator, the Coulombic efficiency of Li||Cu batteries was 98.2% after 200 cycles and stable plating/stripping even after 800 h was achieved for the Li||Li symmetric batteries. Importantly, the proposed separator allows 140% specific capacity increase after 190 cycles as employing the Li–S batteries.

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