Partly lithiated graphitic carbon foam as 3D porous current collectors for dendrite-free lithium metal anodes

Tao Chen; Weishang Jia; Zeyu Yao; Yuchi Liu; Xin Guan; Kewei Li; Julan Xiao; Hongli Liu; Ying Chen; Yong Zhou; Daming Sun; Jingze Li

Electrochemistry Communications (Oct 2019)

Partly lithiated graphitic carbon foam as 3D porous current collectors for dendrite-free lithium metal anodes

Tao Chen,
Weishang Jia,
Zeyu Yao,
Yuchi Liu,
Xin Guan,
Kewei Li,
Julan Xiao,
Hongli Liu,
Ying Chen,
Yong Zhou,
Daming Sun,
Jingze Li

Affiliations

Tao Chen: School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, PR China; School of Electronic Engineering, Chengdu Technological University, Chengdu 611730, PR China
Weishang Jia: School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, PR China
Zeyu Yao: School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, PR China
Yuchi Liu: School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, PR China
Xin Guan: School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, PR China
Kewei Li: School of Electronic Engineering, Chengdu Technological University, Chengdu 611730, PR China; Corresponding authors.
Julan Xiao: School of Electronic Engineering, Chengdu Technological University, Chengdu 611730, PR China
Hongli Liu: School of Electronic Engineering, Chengdu Technological University, Chengdu 611730, PR China
Ying Chen: School of Electronic Engineering, Chengdu Technological University, Chengdu 611730, PR China
Yong Zhou: School of Electronic Engineering, Chengdu Technological University, Chengdu 611730, PR China
Daming Sun: School of Electronic Engineering, Chengdu Technological University, Chengdu 611730, PR China
Jingze Li: School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, PR China; Corresponding authors.

Journal volume & issue: Vol. 107

Abstract

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Though lithium (Li) metal is an ideal anode material for next-generation rechargeable batteries, its application has been seriously limited by security and cyclability issues as the result of uncontrollable Li dendrite growth. To solve this problem, this paper proposes a method to suppress Li dendrite growth using melamine-derived 3D porous carbon foam decorated with graphite intercalation compounds of Li (GICs-Li) as a Li host. GICs-Li, with excellent lithiophilicity, ensures uniform Li deposition, while the 3D porous carbon foam, with ultrahigh porosity and enlarged surface area, provides pathway for Li+ transport, accommodates Li deposition as well as reduces practical current density. Thus, dendrite-free morphology of composite Li anode is realized without additional heterogeneous lithiophilic particles. In symmetric cell configuration, the composite Li anode performs stably for 500 cycles at 10 mAcm−2. In full cell configuration with Li4Ti5O12 (LTO), it exhibits a large capacity retention rate (~91%) after 700 cycles at 1.0C. Keywords: Partly lithiated graphitic carbon foam, Lithium metal anode, 3D porous current collector, Lithium dendrite, Graphite intercalation compounds of Li

Published in Electrochemistry Communications

ISSN: 1388-2481 (Print); 1873-1902 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Industrial electrochemistry; Science: Chemistry
Website: https://www.journals.elsevier.com/electrochemistry-communications

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