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首页> 外文期刊>Advanced energy materials >High-Index Zinc Facet Exposure Induced by Preferentially Orientated Substrate for Dendrite-Free Zinc Anode
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High-Index Zinc Facet Exposure Induced by Preferentially Orientated Substrate for Dendrite-Free Zinc Anode

机译：High-Index Zinc Facet Exposure Induced by Preferentially Orientated Substrate for Dendrite-Free Zinc Anode

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摘要

The most commonly used zinc foil anode for aqueous zinc-ion batteries suffers from poor cycle stability and low zinc utilization. Zinc-plated anodes on the host materials with high zincophilicity and stability are receiving increasing attention to alleviate these above issues. Here, the high zinc deposition activity of Cu (2 2 0) is confirmed through experimental observations and theoretical calculations and then Cu (2 2 0) substrates are prepared with the highly preferred orientation through an industrial electrolysis strategy. The prepared Cu (2 2 0) substrate can consistently modulate dense zinc growth by inducing the Zn (0 0 1) growth with the lowest surface energy and exposing high-index zinc facets due to its exceptional grain size, high deposition activity, and homogeneous crystal orientation, which result in the high zinc plating/stripping reversibility of this Cu (2 2 0) substrate. When assembled into the Zn//MnO_2 battery, the zinc-plated Cu (2 2 0) can deliver capacity retention of 93.9 after 640 cycles at high zinc utilization (≈20). This scalable orientation design strategy provides a new perspective for realizing dendrite-free metal deposition with special textures.

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