ZrO2 thin film protected li metal anode for improved electrochemical performance

2019 ◽  
Author(s):  
Siji Qu ◽  
Weishang Jia ◽  
Zhihong Wang ◽  
Jingze Li
Keyword(s):  
Thin Film ◽  
Electrochemical Performance ◽  
Metal Anode ◽  
Zro2 Thin Film ◽  
Li Metal Anode

Protection of Li metal anode by surface-coating of PVDF thin film to enhance the cycling performance of Li batteries

2019 ◽  
Vol 30 (2) ◽  
pp. 525-528 ◽  
Author(s):  
Zhenguang Gao ◽  
Shaojian Zhang ◽  
Zhigen Huang ◽  
Yanqiu Lu ◽  
Weiwei Wang ◽  
...  
Keyword(s):  
Thin Film ◽  
Surface Coating ◽  
Cycling Performance ◽  
Metal Anode ◽  
Li Metal Anode ◽  
Li Batteries

scholarly journals Dendrite-Free and Stable Lithium Metal Battery Achieved by a Model of Stepwise Lithium Deposition and Stripping

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Tiancun Liu ◽  
Jinlong Wang ◽  
Yi Xu ◽  
Yifan Zhang ◽  
Yong Wang
Keyword(s):  
Reduction Method ◽  
Coulombic Efficiency ◽  
List Type ◽  
Lithium Metal ◽  
Metal Anode ◽  
In Situ Raman ◽  
Unique Model ◽  
Li Metal Anode ◽  
Pyridinic N

Highlights A facile method is adopted to obtain cucumber-like lithiophilic composite skeleton. Massive lithiophilic sites in cucumber-like lithiophilic composite skeleton can promote and guide uniform Li depositions. A unique model of stepwise Li deposition and stripping is determined. Abstract The uncontrolled formation of lithium (Li) dendrites and the unnecessary consumption of electrolyte during the Li plating/stripping process have been major obstacles in developing safe and stable Li metal batteries. Herein, we report a cucumber-like lithiophilic composite skeleton (CLCS) fabricated through a facile oxidation-immersion-reduction method. The stepwise Li deposition and stripping, determined using in situ Raman spectra during the galvanostatic Li charging/discharging process, promote the formation of a dendrite-free Li metal anode. Furthermore, numerous pyridinic N, pyrrolic N, and CuxN sites with excellent lithiophilicity work synergistically to distribute Li ions and suppress the formation of Li dendrites. Owing to these advantages, cells based on CLCS exhibit a high Coulombic efficiency of 97.3% for 700 cycles and an improved lifespan of 2000 h for symmetric cells. The full cells assembled with LiFePO4 (LFP), SeS2 cathodes and CLCS@Li anodes demonstrate high capacities of 110.1 mAh g−1 after 600 cycles at 0.2 A g−1 in CLCS@Li|LFP and 491.8 mAh g−1 after 500 cycles at 1 A g−1 in CLCS@Li|SeS2. The unique design of CLCS may accelerate the application of Li metal anodes in commercial Li metal batteries.

scholarly journals Constructing a stable interface between sulfide electrolyte and Li metal anode via a Li+-conductive gel polymer interlayer

2021 ◽  
Author(s):  
Ya-Hui Wang ◽  
Junpei Yue ◽  
Wen-Peng Wang ◽  
Wan-Ping Chen ◽  
Ying Zhang ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Solid Electrolytes ◽  
High Energy ◽  
High Ionic Conductivity ◽  
Practical Realization ◽  
Metal Anode ◽  
Li Metal Anode

Due to high ionic conductivity, favorable mechanical plasticity, and non-flammable properties, inorganic sulfide solid electrolytes bring opportunities to the practical realization of rechargeable Li-metal batteries with high energy, yet their...

Highly Lithiophilic Copper-Reinforced Scaffold Enables Stable Li Metal Anode

2021 ◽  
Author(s):  
Xiaoyu Zhao ◽  
Shuixin Xia ◽  
Xun Zhang ◽  
Yuepeng Pang ◽  
Fen Xu ◽  
...  
Keyword(s):  
Metal Anode ◽  
Li Metal Anode

Boron additive passivated carbonate electrolytes for stable cycling of 5 V lithium–metal batteries

2019 ◽  
Vol 7 (2) ◽  
pp. 594-602 ◽  
Author(s):  
Hongyun Yue ◽  
Yange Yang ◽  
Yan Xiao ◽  
Zhiyuan Dong ◽  
Shuguo Cheng ◽  
...  
Keyword(s):  
High Voltage ◽  
Dendrite Growth ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Batteries ◽  
Li Metal Anode ◽  
Oxidation Loss

The limitation of a high-voltage lithium (Li) metal battery lies in the absence of a robust electrolyte that can endure oxidation loss at a high-voltage cathode and suppress the dendrite growth at a Li metal anode.

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