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Lv L, Zhu Z, Liao X, Wu L, Duan Y, Yang K, You G, He X, Dong W, Tang H, He L. Deeply Reconstructed Hierarchical Ni-Co Microwire for Flexible Ni-Zn Microbattery with Excellent Comprehensive Performance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301913. [PMID: 37127853 DOI: 10.1002/smll.202301913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/30/2023] [Indexed: 05/03/2023]
Abstract
The rise of flexible electronics calls for efficient microbatteries (MBs) with requirements in energy/power density, stability, and flexibility simultaneously. However, the ever-reported flexible MBs only display progress around certain aspects of energy loading, reaction rate, and electrochemical stability, and it remains challenging to develop a micro-power source with excellent comprehensive performance. Herein, a reconstructed hierarchical Ni-Co alloy microwire is designed to construct flexible Ni-Zn MB. Notably, the interwoven microwires network is directly formed during the synthesis process, and can be utilized as a potential microelectrode which well avoids the toxic additives and the tedious traditional powder process, thus greatly simplifying the manufacture of MB. Meanwhile, the hierarchical alloy microwire is composed of spiny nanostructures and highly active alloy sites, which contributes to deep reconstruction (≈100 nm). Benefiting from the dense self-assembled structure, the fabricated Ni-Zn MB obtained high volumetric/areal energy density (419.7 mWh cm-3 , 1.3 mWh cm-2 ), and ultrahigh rate performance extending the power density to 109.4 W cm-3 (328.3 mW cm-2 ). More surprisingly, the MB assembled by this inherently flexible microwire network is extremely resistant to bending/twisting. Therefore, this novel concept of excellent comprehensive micro-power source will greatly hold great implications for next-generation flexible electronics.
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Affiliation(s)
- Linfeng Lv
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Zhe Zhu
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Xiaoqiao Liao
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Leixin Wu
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Yixue Duan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Kai Yang
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Gongchuan You
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Xin He
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Wei Dong
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Hui Tang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Liang He
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
- School of Mechanical Engineering, Sichuan University, Chengdu, 610065, P. R. China
- Med+X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
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You G, Zhu Z, Duan Y, Lv L, Liao X, He X, Yang K, Song R, Yang Y, He L. Alkaline Ni-Zn Microbattery Based on 3D Hierarchical Porous Ni Microcathode with High-Rate Performance. MICROMACHINES 2023; 14:mi14050927. [PMID: 37241551 DOI: 10.3390/mi14050927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/12/2023] [Accepted: 04/17/2023] [Indexed: 05/28/2023]
Abstract
Miniaturized energy storage devices with superior performance and compatibility with facile fabrication are highly desired in smart microelectronics. Typical fabrication techniques are generally based on powder printing or active material deposition, which restrict the reaction rate due to the limited optimization of electron transport. Herein, we proposed a new strategy for the construction of high-rate Ni-Zn microbatteries based on a 3D hierarchical porous nickel (Ni) microcathode. With sufficient reaction sites from the hierarchical porous structure as well as excellent electrical conductivity from the superficial Ni-based activated layer, this Ni-based microcathode is featured with fast-reaction capability. By virtue of facile electrochemical treatment, the fabricated microcathode realized an excellent rate performance (over 90% capacity retention when the current density increased from 1 to 20 mA cm-2). Furthermore, the assembled Ni-Zn microbattery achieved a rate current of up to 40 mA cm-2 with a capacity retention of 76.9%. Additionally, the high reactivity of the Ni-Zn microbattery is also durable in 2000 cycles. This 3D hierarchical porous Ni microcathode, as well as the activation strategy, provides a facile route for the construction of microcathodes and enriches high-performance output units for integrated microelectronics.
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Affiliation(s)
- Gongchuan You
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Zhe Zhu
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Yixue Duan
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Linfeng Lv
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Xiaoqiao Liao
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Xin He
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Kai Yang
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Ruiqi Song
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Yi Yang
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Liang He
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
- Med+X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu 610041, China
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Yang X, Song R, He L, Wu L, He X, Liu X, Tang H, Lu X, Ma Z, Tian P. Optimization mechanism and applications of ultrafast laser machining towards highly designable 3D micro/nano structuring. RSC Adv 2022; 12:35227-35241. [DOI: 10.1039/d2ra05148f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 11/22/2022] [Indexed: 12/13/2022] Open
Abstract
The optimization mechanism of ultrafast laser machining is introduced. The specific applications of laser processed 3D micro/nano structures in optical, electrochemical and biomedical fields are elaborated, and perspectives are presented.
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Affiliation(s)
- Xiaomeng Yang
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Ruiqi Song
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Liang He
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
- Med+X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Leixin Wu
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Xin He
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Xiaoyu Liu
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Hui Tang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Xiaolong Lu
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Zeyu Ma
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Peng Tian
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
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