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Wang K, Tieu AJK, Wu H, Shen F, Han X, Adams S. Oriented Structures for High Safety, Rate Capability, and Energy Density Lithium Metal Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2403797. [PMID: 38981016 DOI: 10.1002/advs.202403797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/23/2024] [Indexed: 07/11/2024]
Abstract
Lithium metal batteries (LMBs) have emerged in recent years as highly promising candidates for high-density energy storage systems. Despite their immense potential, mutual constraints arise when optimizing energy density, rate capability, and operational safety, which greatly hinder the commercialization of LMBs. The utilization of oriented structures in LMBs appears as a promising strategy to address three key performance barriers: 1) low efficiency of active material utilization at high surface loading, 2) easy formation of Li dendrites and damage to interfaces under high-rate cycling, and 3) low ionic conductivity of solid-state electrolytes in high safety LMBs. This review aims to holistically introduce the concept of oriented structures, provide criteria for quantifying the degree of orientation, and elucidate their systematic effects on the properties of materials and devices. Furthermore, a detailed categorization of oriented structures is proposed to offer more precise guidance for the design of LMBs. This review also provides a comprehensive summary of preparation techniques for oriented structures and delves into the mechanisms by which these can enhance the energy density, rate capability, and safety of LMBs. Finally, potential applications of oriented structures in LMBs and the crucial challenges that need to be addressed in this field are explored.
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Affiliation(s)
- Kaiming Wang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117576, Singapore
- School of Future Technology, Xi'an Jiaotong University, Shaanxi, 710049, China
- State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Aaron Jue Kang Tieu
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117576, Singapore
| | - Haowen Wu
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117576, Singapore
| | - Fei Shen
- State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University, Shaanxi, 710049, China
- Xi'an Jiaotong University Suzhou Institute, Suzhou, Jiangsu, 215123, China
| | - Xiaogang Han
- State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Stefan Adams
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117576, Singapore
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Zhao L, Wang T, Zuo F, Ju Z, Li Y, Li Q, Zhu Y, Li H, Yu G. A fast-charging/discharging and long-term stable artificial electrode enabled by space charge storage mechanism. Nat Commun 2024; 15:3778. [PMID: 38710689 PMCID: PMC11074309 DOI: 10.1038/s41467-024-48215-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 04/23/2024] [Indexed: 05/08/2024] Open
Abstract
Lithium-ion batteries with fast-charging/discharging properties are urgently needed for the mass adoption of electric vehicles. Here, we show that fast charging/discharging, long-term stable and high energy charge-storage properties can be realized in an artificial electrode made from a mixed electronic/ionic conductor material (Fe/LixM, where M = O, F, S, N) enabled by a space charge principle. Particularly, the Fe/Li2O electrode is able to be charged/discharged to 126 mAh g-1 in 6 s at a high current density of up to 50 A g-1, and it also shows stable cycling performance for 30,000 cycles at a current density of 10 A g-1, with a mass-loading of ~2.5 mg cm-2 of the electrode materials. This study demonstrates the critical role of the space charge storage mechanism in advancing electrochemical energy storage and provides an unconventional perspective for designing high-performance anode materials for lithium-ion batteries.
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Affiliation(s)
- Linyi Zhao
- College of Physics, Qingdao University, Qingdao, 266071, China
| | - Tiansheng Wang
- College of Physics, Qingdao University, Qingdao, 266071, China
| | - Fengkai Zuo
- College of Physics, Qingdao University, Qingdao, 266071, China
| | - Zhengyu Ju
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Yuhao Li
- College of Physics, Qingdao University, Qingdao, 266071, China
| | - Qiang Li
- College of Physics, Qingdao University, Qingdao, 266071, China
| | - Yue Zhu
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA.
- School of Materials Science and Engineering, Ocean University of China, Qingdao, 266404, China.
| | - Hongsen Li
- College of Physics, Qingdao University, Qingdao, 266071, China.
| | - Guihua Yu
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA.
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Checko S, Ju Z, Zhang B, Zheng T, Takeuchi ES, Marschilok AC, Takeuchi KJ, Yu G. Fast-Charging, Binder-Free Lithium Battery Cathodes Enabled via Multidimensional Conductive Networks. NANO LETTERS 2024; 24:1695-1702. [PMID: 38261789 DOI: 10.1021/acs.nanolett.3c04437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
To meet the growing demands in both energy and power densities of lithium ion batteries, electrode structures must be capable of facile electron and ion transport while minimizing the content of electrochemically inactive components. Herein, binder-free LiFePO4 (LFP) cathodes are fabricated with a multidimensional conductive architecture that allows for fast-charging capability, reaching a specific capacity of 94 mAh g-1 at 4 C. Such multidimensional networks consist of active material particles wrapped by 1D single-walled carbon nanotubes (CNTs) and bound together using 2D MXene (Ti3C2Tx) nanosheets. The CNTs form a porous coating layer and improve local electron transport across the LFP surface, while the Ti3C2Tx nanosheets provide simultaneously high electrode integrity and conductive pathways through the bulk of the electrode. This work highlights the ability of multidimensional conductive fillers to realize simultaneously superior electrochemical and mechanical properties, providing useful insights into future fast-charging electrode designs for scalable electrochemical systems.
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Affiliation(s)
- Shane Checko
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Zhengyu Ju
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Bowen Zhang
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Tianrui Zheng
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Esther S Takeuchi
- Institute of Energy: Sustainability, Environment, and Equity, Stony Brook University, Stony Brook, New York 11794, United States
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States
- Interdisciplinary Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Amy C Marschilok
- Institute of Energy: Sustainability, Environment, and Equity, Stony Brook University, Stony Brook, New York 11794, United States
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States
- Interdisciplinary Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Kenneth J Takeuchi
- Institute of Energy: Sustainability, Environment, and Equity, Stony Brook University, Stony Brook, New York 11794, United States
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States
- Interdisciplinary Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Guihua Yu
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
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