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Cui M, Fu S, Yuan S, Jin B, Liu H, Li Y, Gao N, Jiang Q. Dual Interface Compatibility Enabled via Composite Solid Electrolyte with High Transference Number for Long-Life All-Solid-State Lithium Metal Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307505. [PMID: 38095459 DOI: 10.1002/smll.202307505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/17/2023] [Indexed: 01/04/2024]
Abstract
The development of solid-state electrolytes (SSEs) effectively solves the safety problem derived from dendrite growth and volume change of lithium during cycling. In the meantime, the SSEs possess non-flammability compared to conventional organic liquid electrolytes. Replacing liquid electrolytes with SSEs to assemble all-solid-state lithium metal batteries (ASSLMBs) has garnered significant attention as a promising energy storage/conversion technology for the future. Herein, a composite solid electrolyte containing two inorganic components (Li6.25Al0.25La3Zr2O12, Al2O3) and an organic polyvinylidene difluoride matrix is designed rationally. X-ray photoelectron spectroscopy and density functional theory calculation results demonstrate the synergistic effect among the components, which results in enhanced ionic conductivity, high lithium-ion transference number, extended electrochemical window, and outstanding dual interface compatibility. As a result, Li||Li symmetric battery maintains a stable cycle for over 2500 h. Moreover, all-solid-state lithium metal battery assembled with LiNi0.6Co0.2Mn0.2O2 cathode delivers a high discharge capacity of 168 mAh g-1 after 360 cycles at 0.1 C at 25 °C, and all-solid-state lithium-sulfur battery also exhibits a high initial discharge capacity of 912 mAh g-1 at 0.1 C. This work demonstrates a long-life flexible composite solid electrolyte with excellent interface compatibility, providing an innovative way for the rational construction of next-generation high-energy-density ASSLMBs.
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Affiliation(s)
- Mengyang Cui
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Shiyang Fu
- State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
| | - Shisheng Yuan
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Bo Jin
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Hui Liu
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Yiyang Li
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Nan Gao
- State Key Lab of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
| | - Qing Jiang
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
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Xian C, Zhang S, Liu P, Huang L, He X, Shen S, Cao F, Liang X, Wang C, Wan W, Zhang Y, Liu X, Zhong Y, Xia Y, Chen M, Zhang W, Xia X, Tu J. An Advanced Gel Polymer Electrolyte for Solid-State Lithium Metal Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306381. [PMID: 38013253 DOI: 10.1002/smll.202306381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/19/2023] [Indexed: 11/29/2023]
Abstract
All-solid-state lithium metal batteries (LMBs) are regarded as one of the most viable energy storage devices and their comprehensive properties are mainly controlled by solid electrolytes and interface compatibility. This work proposes an advanced poly(vinylidene fluoride-hexafluoropropylene) based gel polymer electrolyte (AP-GPEs) via functional superposition strategy, which involves incorporating butyl acrylate and polyethylene glycol diacrylate as elastic optimization framework, triethyl phosphate and fluoroethylene carbonate as flameproof liquid plasticizers, and Li7La3Zr2O12 nanowires (LLZO-w) as ion-conductive fillers, endowing the designed AP-GPEs/LLZO-w membrane with high mechanical strength, excellent flexibility, low flammability, low activation energy (0.137 eV), and improved ionic conductivity (0.42 × 10-3 S cm-1 at 20 °C) due to continuous ionic transport pathways. Additionally, the AP-GPEs/LLZO-w membrane shows good safety and chemical/electrochemical compatibility with the lithium anode, owing to the synergistic effect of LLZO-w filler, flexible frameworks, and flame retardants. Consequently, the LiFePO4/Li batteries assembled with AP-GPEs/LLZO-w electrolyte exhibit enhanced cycling performance (87.3% capacity retention after 600 cycles at 1 C) and notable high-rate capacity (93.3 mAh g-1 at 5 C). This work proposes a novel functional superposition strategy for the synthesis of high-performance comprehensive GPEs for LMBs.
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Affiliation(s)
- Chunxiang Xian
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Shengzhao Zhang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Ping Liu
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Lei Huang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Xinping He
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Shenghui Shen
- School of Materials Science and & Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Feng Cao
- Department of Engineering Technology, Huzhou College, Huzhou, 313000, P. R. China
| | - Xinqi Liang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu, 611371, China
- Key Laboratory of Engineering Dielectric and Applications (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Chen Wang
- Zhejiang Academy of Science and Technology for Inspection & Quarantine, Zhejiang, Hangzhou, 311215, P. R. China
| | - Wangjun Wan
- Zhejiang Academy of Science and Technology for Inspection & Quarantine, Zhejiang, Hangzhou, 311215, P. R. China
| | - Yongqi Zhang
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu, 611371, China
| | - Xin Liu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan, 430200, China
| | - Yu Zhong
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Yang Xia
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Minghua Chen
- Key Laboratory of Engineering Dielectric and Applications (Ministry of Education), School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin, 150080, P. R. China
| | - Wenkui Zhang
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Xinhui Xia
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350116, China
| | - Jiangping Tu
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
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Cho H, Bae G, Hong BH. Engineering functionalization and properties of graphene quantum dots (GQDs) with controllable synthesis for energy and display applications. NANOSCALE 2024; 16:3347-3378. [PMID: 38288500 DOI: 10.1039/d3nr05842e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Graphene quantum dots (GQDs), a new type of 0D nanomaterial, are composed of a graphene lattice with sp2 bonding carbon core and characterized by their abundant edges and wide surface area. This unique structure imparts excellent electrical properties and exceptional physicochemical adsorption capabilities to GQDs. Additionally, the reduction in dimensionality of graphene leads to an open band gap in GQDs, resulting in their unique optical properties. The functional groups and dopants in GQDs are key factors that allow the modulation of these characteristics. So, controlling the functionalization level of GQDs is crucial for understanding their characteristics and further application. This review provides an overview of the properties and structure of GQDs and summarizes recent developments in research that focus on their controllable synthesis, involving functional groups and doping. Additionally, we provide a comprehensive and focused explanation of how GQDs have been advantageously applied in recent years, particularly in the fields of energy storage devices and displays.
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Affiliation(s)
- Hyeonwoo Cho
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.
| | - Gaeun Bae
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.
| | - Byung Hee Hong
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.
- Graphene Research Center, Advanced Institute of Convergence Technology, Suwon 16229, Republic of Korea
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