Projects per year
Abstract
Metallic lithium (Li) is a promising anode material for next-generation rechargeable batteries. However, the dendrite growth of Li and repeated formation of solid electrolyte interface during Li plating and stripping result in low Coulombic efficiency, internal short circuits, and capacity decay, hampering its practical application. In the development of stable Li metal anode, the current collector is recognized as a critical component to regulate Li plating. In this work, a lithiophilic Cu-CuO-Ni hybrid structure is synthesized as a current collector for Li metal anodes. The low overpotential of CuO for Li nucleation and the uniform Li+ ion flux induced by the formation of Cu nanowire arrays enable effective suppression of the growth of Li dendrites. Moreover, the surface Cu layer can act as a protective layer to enhance structural durability of the hybrid structure in long-term running. As a result, the Cu-CuO-Ni hybrid structure achieves a Coulombic efficiency above 95% for more than 250 cycles at a current density of 1 mA cm−2 and 580 h (290 cycles) stable repeated Li plating and stripping in a symmetric cell.
Original language | English |
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Article number | 1705830 |
Journal | Advanced Materials |
Volume | 30 |
Issue number | 9 |
Online published | 12 Jan 2018 |
DOIs | |
Publication status | Published - 1 Mar 2018 |
Research Keywords
- lithiophilic materials
- lithium metal anodes
- lithium nucleation overpotential
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Dive into the research topics of 'Lithiophilic Cu-CuO-Ni Hybrid Structure: Advanced Current Collectors Toward Stable Lithium Metal Anodes'. Together they form a unique fingerprint.Projects
- 2 Finished
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GRF: Controllable Synthesis and Lithium Storage Performance of Graphene Network@Mesoporous Carbon Integrated with Nano Silicon and Metal Oxides
ZHANG, K. (Principal Investigator / Project Coordinator) & Yang, Y. (Co-Investigator)
1/09/16 → 25/02/21
Project: Research
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GRF: Preparation, Energetic Properties and Combustion Characteristics of Explosive-Embedded Nanoenergetic Composite Arrays
ZHANG, K. (Principal Investigator / Project Coordinator) & Yang, G. (Co-Investigator)
1/10/15 → 10/03/20
Project: Research