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Nanosecond laser lithography enables concave-convex zinc metal battery anodes with ultrahigh areal capacity
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Huang, Zechuan, Li, Haoyang, Yang, Zhen, Wang, Haozhi, Ding, Jingnan, Xu, Luyao, Tian, Yanling, Mitlin, David, Ding, Jia and Hu, Wenbin (2022) Nanosecond laser lithography enables concave-convex zinc metal battery anodes with ultrahigh areal capacity. Energy Storage Materials, 51 . pp. 273-285. doi:10.1016/j.ensm.2022.06.054 ISSN 2405-8297.
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WRAP-Nanosecond-laser-lithography-concave-convex-zinc-metal-battery-22.pdf - Accepted Version - Requires a PDF viewer. Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0. Download (2536Kb) | Preview |
Official URL: http://dx.doi.org/10.1016/j.ensm.2022.06.054
Abstract
Laser processing is employed to fabricated zinc-ion battery (ZIB) anodes with state-of-the-art electrochemical performance from commercial zinc foils. Lasers are widely utilized for industrial surface finishing but have received minimal attention for zinc surface modification. Laser lithography patterned zinc foils “LLP@ZF” are hydrophilic, with an electrolyte contact angle of 0°. This is due to the concave-convex surface geometry that enhances wetting (periodic crests, ridges and valleys, roughness 16.5 times planar). During electrodeposition LLP@ZF's surface geometry generates a periodic electric field and associated current density distribution that suppresses tip growth (per continuum simulations). Per Density Functional Theory (DFT) its surface oxide is zincophilic, resulting in low nucleation barriers during plating (e.g. 3.8 mV at 1 mA cm−2). A combination of these attributes leads to stable dendrite-free plating/stripping behavior and low overpotentials at fast charge (e.g. 48.2 mV at 8 mA cm−2 in symmetric cell). Cycling is possible at an unprecedented areal capacity of 50 mA h cm−2, with 400 h stability at 1 mA cm−2. Moreover, exceptional aqueous zinc battery (AZB) performance is achieved, with MnO2-based cathode loading 10 mg cm−2 and corresponding anode capacity 7.6 mA h cm−2. A broad comparison with literature indicates that LLP@ZF symmetric cell and full battery performance are among most favorable.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Journal or Publication Title: | Energy Storage Materials | ||||||||
Publisher: | Elsevier | ||||||||
ISSN: | 2405-8297 | ||||||||
Official Date: | October 2022 | ||||||||
Dates: |
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Volume: | 51 | ||||||||
Page Range: | pp. 273-285 | ||||||||
DOI: | 10.1016/j.ensm.2022.06.054 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 17 August 2022 | ||||||||
Date of first compliant Open Access: | 3 July 2023 |
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