Lithiophilic Co/Co4N nanoparticles embedded in hollow N-doped carbon nanocubes stabilizing lithium metal anodes for Li–air batteries

2018 ◽  
Vol 6 (44) ◽  
pp. 22096-22105 ◽  
Author(s):  
Ziyang Guo ◽  
Fengmei Wang ◽  
Zijian Li ◽  
Yu Yang ◽  
Andebet Gedamu Tamirat ◽  
...  
Keyword(s):  
Coulombic Efficiency ◽  
Carbon Electrode ◽  
Lithium Metal ◽  
Lithium Metal Anodes ◽  
Long Life ◽  
Metal Anodes ◽  
High Coulombic Efficiency

A lithiophilic Co/Co4N-N-doped carbon electrode displays a high coulombic efficiency (98.5%) and dendrite-free morphology for long-life Li–air batteries.

A copper-clad lithiophilic current collector for dendrite-free lithium metal anodes

2020 ◽  
Vol 8 (4) ◽  
pp. 1911-1919 ◽  
Author(s):  
Ke Chen ◽  
Rajesh Pathak ◽  
Ashim Gurung ◽  
Khan M. Reza ◽  
Nabin Ghimire ◽  
...  
Keyword(s):  
Coulombic Efficiency ◽  
Current Collector ◽  
Lithium Metal ◽  
Lithium Metal Anodes ◽  
Metal Anodes ◽  
High Coulombic Efficiency

A flexible copper-clad lithiophilic current collector was designed for high coulombic efficiency dendrite-free Li metal anodes.

A 3D mixed ion/electron conducting scaffold by in-situ conversion for long-life lithium metal anodes

Nanoscale ◽  
2021 ◽  
Author(s):  
Huai Jiang ◽  
Qingyuan Dong ◽  
Maohui Bai ◽  
Furong Qin ◽  
Maoyi Yi ◽  
...  
Keyword(s):  
Anode Material ◽  
Volume Change ◽  
Specific Energy ◽  
Dendrite Growth ◽  
Commercial Application ◽  
Lithium Metal ◽  
Lithium Metal Anodes ◽  
Long Life ◽  
Metal Anodes

Lithium (Li) metal is widely considered as the most promising anode material because of ultrahigh specific energy. However, obvious volume change and uncontrollable dendrite growth hinder its commercial application. Herein,...

Thin buffer layer assist carbon-modifying separator for long-life lithium metal anodes

2020 ◽  
Author(s):  
Jiaqi Li ◽  
Hongsheng Jia ◽  
Haibo Li ◽  
Xing Zhao ◽  
Guiru Sun ◽  
...  
Keyword(s):  
Buffer Layer ◽  
Lithium Metal ◽  
Lithium Metal Anodes ◽  
Long Life ◽  
Metal Anodes

scholarly journals Accommodating lithium into 3D current collectors with a submicron skeleton towards long-life lithium metal anodes

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Chun-Peng Yang ◽  
Ya-Xia Yin ◽  
Shuai-Feng Zhang ◽  
Nian-Wu Li ◽  
Yu-Guo Guo
Keyword(s):  
Lithium Metal ◽  
Current Collectors ◽  
Lithium Metal Anodes ◽  
Long Life ◽  
Metal Anodes

In situ fluorinated solid electrolyte interphase towards long-life lithium metal anodes

Nano Research ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 430-436 ◽  
Author(s):  
Shan-Min Xu ◽  
Hui Duan ◽  
Ji-Lei Shi ◽  
Tong-Tong Zuo ◽  
Xin-Cheng Hu ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Lithium Metal ◽  
Lithium Metal Anodes ◽  
Long Life ◽  
Metal Anodes

scholarly journals Leveraging Cation Identity to Engineer Solid Electrolyte Interphases for Rechargeable Lithium Metal Anodes

2020 ◽  
Author(s):  
Richard May ◽  
Yumin Zhang ◽  
Steven R. Denny ◽  
Venkatasubramanian Viswanathan ◽  
Lauren Marbella
Keyword(s):  
Solid Electrolyte ◽  
Density Functional ◽  
Coulombic Efficiency ◽  
Ethylene Carbonate ◽  
Solid Electrolyte Interphase ◽  
Spectroscopic Characterization ◽  
Lithium Metal ◽  
Lithium Metal Anodes ◽  
The Impact ◽  
Metal Anodes

<p>Lithium metal anodes enable substantially higher energy density than current technologies for Li batteries. However, rechargeable Li metal anodes suffer from low Coulombic efficiency (loss of electrochemically active Li), leading to poor cycle life and safety. Engineering the electrolyte formulation to form a stable, well-functioning solid electrolyte interphase (SEI) is a promising approach to improving these performance figures of merit. While design rules have been established for selecting electrolyte solvents and salt anions to establish a more robust SEI, the impact of altering cation identity is not well understood. In this work, we demonstrate that alkali metal additives (here, K<sup>+</sup>) alter SEI composition and thickness. Through post-mortem elemental analyses, we show that K<sup>+</sup> ions do not directly participate in metal electrodeposition, but rather modify the chemical and electrochemical reactivity of the electrode-electrolyte interface. Through a combination of quantitative nuclear magnetic resonance (NMR) spectroscopic characterization and density functional theory (DFT) simulations, we show that decomposition of electrolyte solvent molecules, ethylene carbonate (EC) and dimethyl carbonate (DMC), at the lithium metal surface is suppressed in the presence of a K<sup>+</sup> additive. We attribute this to K<sup>+</sup> being a softer cation compared to Li<sup>+</sup>, leading to preferred pair formation between K<sup>+</sup> and the soft base carbonates, and thus increased salt-solvent coordination. Electrolyte cation engineering is an underexplored strategy to control the SEI, and we believe that the mechanistic understanding and insight developed in this work will spur further investigation of this promising approach.</p>

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