Robust pure copper framework by extrusion 3D printing for advanced lithium metal anodes

2020 ◽  
Vol 8 (18) ◽  
pp. 9058-9067 ◽  
Author(s):  
Gwendolyn J. H. Lim ◽  
Zhiyang Lyu ◽  
Xin Zhang ◽  
J. Justin Koh ◽  
Yu Zhang ◽  
...  
Keyword(s):  
3D Printing ◽  
Pure Copper ◽  
Current Collector ◽  
Electrochemical Performances ◽  
Lithium Metal ◽  
Lithium Metal Anodes ◽  
3D Printed ◽  
Metal Anodes

A novel robust and self-standing 3D-printed pure copper framework (3DP-Cu) is developed as a Li host and current collector. 3D-printing allows microchannels to be deliberately incorporated, benefiting both mechanical and electrochemical performances.

A corrosion-resistant current collector for lithium metal anodes

2019 ◽  
Vol 18 ◽  
pp. 199-204 ◽  
Author(s):  
Xinyue Zhang ◽  
Aoxuan Wang ◽  
Ruijing Lv ◽  
Jiayan Luo
Keyword(s):  
Current Collector ◽  
Lithium Metal ◽  
Corrosion Resistant ◽  
Lithium Metal Anodes ◽  
Metal Anodes

scholarly journals Favorable Lithium Nucleation on Lithiophilic Framework Porphyrin for Dendrite-Free Lithium Metal Anodes

Research ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Bo-Quan Li ◽  
Xiao-Ru Chen ◽  
Xiang Chen ◽  
Chang-Xin Zhao ◽  
Rui Zhang ◽  
...  
Keyword(s):  
Coulombic Efficiency ◽  
Dendrite Growth ◽  
Homogeneous Distribution ◽  
Electrochemical Performances ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Host Materials ◽  
Lithium Metal Anodes ◽  
Excellent Stability ◽  
Metal Anodes

Lithium metal constitutes promising anode materials but suffers from dendrite growth. Lithiophilic host materials are highly considered for achieving uniform lithium deposition. Precise construction of lithiophilic sites with desired structure and homogeneous distribution significantly promotes the lithiophilicity of lithium hosts but remains a great challenge. In this contribution, a framework porphyrin (POF) material with precisely constructed lithiophilic sites in regard to chemical structure and geometric position is employed as the lithium host to address the above issues for dendrite-free lithium metal anodes. The extraordinary lithiophilicity of POF even beyond lithium nuclei validated by DFT simulations and lithium nucleation overpotentials affords a novel mechanism of favorable lithium nucleation to facilitate uniform nucleation and inhibit dendrite growth. Consequently, POF-based anodes demonstrate superior electrochemical performances with high Coulombic efficiency over 98%, reduced average voltage hysteresis, and excellent stability for 300 cycles at 1.0 mA cm−2, 1.0 mAh cm−2 superior to both Cu and graphene anodes. The favorable lithium nucleation mechanism on POF materials inspires further investigation of lithiophilic electrochemistry and development of lithium metal batteries.

scholarly journals PVDF-supported graphene foam as a robust current collector for lithium metal anodes

RSC Advances ◽  
2020 ◽  
Vol 10 (35) ◽  
pp. 20915-20920
Author(s):  
Liurong Shi ◽  
Zhipeng Hu ◽  
Ye Hong
Keyword(s):  
Current Collector ◽  
Lithium Metal ◽  
Graphene Foam ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Lithium Metal Anodes ◽  
Cycling Life ◽  
Metal Anodes

A robust lithium metal anode comprising of PSGF current collector showing long cycling life.

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.

scholarly journals Favorable Lithium Nucleation on Lithiophilic Framework Porphyrin for Dendrite-Free Lithium Metal Anodes

Research ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Bo-Quan Li ◽  
Xiao-Ru Chen ◽  
Xiang Chen ◽  
Chang-Xin Zhao ◽  
Rui Zhang ◽  
...  
Keyword(s):  
Coulombic Efficiency ◽  
Dendrite Growth ◽  
Homogeneous Distribution ◽  
Electrochemical Performances ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Host Materials ◽  
Lithium Metal Anodes ◽  
Excellent Stability ◽  
Metal Anodes

Lithium metal constitutes promising anode materials but suffers from dendrite growth. Lithiophilic host materials are highly considered for achieving uniform lithium deposition. Precise construction of lithiophilic sites with desired structure and homogeneous distribution significantly promotes the lithiophilicity of lithium hosts but remains a great challenge. In this contribution, a framework porphyrin (POF) material with precisely constructed lithiophilic sites in regard to chemical structure and geometric position is employed as the lithium host to address the above issues for dendrite-free lithium metal anodes. The extraordinary lithiophilicity of POF even beyond lithium nuclei validated by DFT simulations and lithium nucleation overpotentials affords a novel mechanism of favorable lithium nucleation to facilitate uniform nucleation and inhibit dendrite growth. Consequently, POF-based anodes demonstrate superior electrochemical performances with high Coulombic efficiency over 98%, reduced average voltage hysteresis, and excellent stability for 300 cycles at 1.0 mA cm−2, 1.0 mAh cm−2 superior to both Cu and graphene anodes. The favorable lithium nucleation mechanism on POF materials inspires further investigation of lithiophilic electrochemistry and development of lithium metal batteries.

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