Nano-Micro Letters, Volume. 16, Issue 1, 112(2024)
Surface Patterning of Metal Zinc Electrode with an In-Region Zincophilic Interface for High-Rate and Long-Cycle-Life Zinc Metal Anode
The undesirable dendrite growth induced by non-planar zinc (Zn) deposition and low Coulombic efficiency resulting from severe side reactions have been long-standing challenges for metallic Zn anodes and substantially impede the practical application of rechargeable aqueous Zn metal batteries (ZMBs). Herein, we present a strategy for achieving a high-rate and long-cycle-life Zn metal anode by patterning Zn foil surfaces and endowing a Zn-Indium (Zn-In) interface in the microchannels. The accumulation of electrons in the microchannel and the zincophilicity of the Zn-In interface promote preferential heteroepitaxial Zn deposition in the microchannel region and enhance the tolerance of the electrode at high current densities. Meanwhile, electron aggregation accelerates the dissolution of non-(002) plane Zn atoms on the array surface, thereby directing the subsequent homoepitaxial Zn deposition on the array surface. Consequently, the planar dendrite-free Zn deposition and long-term cycling stability are achieved (5,050 h at 10.0 mA cm-2 and 27,000 cycles at 20.0 mA cm-2). Furthermore, a Zn/I2 full cell assembled by pairing with such an anode can maintain good stability for 3,500 cycles at 5.0 C, demonstrating the application potential of the as-prepared ZnIn anode for high-performance aqueous ZMBs.
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Tian Wang, Qiao Xi, Kai Yao, Yuhang Liu, Hao Fu, Venkata Siva Kavarthapu, Jun Kyu Lee, Shaocong Tang, Dina Fattakhova-Rohlfing, Wei Ai, Jae Su Yu. Surface Patterning of Metal Zinc Electrode with an In-Region Zincophilic Interface for High-Rate and Long-Cycle-Life Zinc Metal Anode[J]. Nano-Micro Letters, 2024, 16(1): 112
Category: Research Articles
Received: Sep. 18, 2023
Accepted: Dec. 14, 2023
Published Online: Jan. 23, 2025
The Author Email: Ai Wei (iamwai@nwpu.edu.cn), Yu Jae Su (jsyu@khu.ac.kr)