Enhancement of Solid-State Lithium-Ion Batteries Using Zeolitic Imidazolate Framework-67 in Polyethylene Oxide-Based Composite Polymer Electrolytes for Improved Ionic Conductivity and Stability
Xiying Wang
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Contribution: Conceptualization (equal), Data curation (lead), Writing - original draft (lead)
Search for more papers by this authorCorresponding Author
Beili Pang
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Correspondence:
Beili Pang ([email protected])
Liyan Yu ([email protected])
Lifeng Dong ([email protected])
Contribution: Conceptualization (lead), Funding acquisition (lead), Writing - review & editing (lead)
Search for more papers by this authorLingyi Kong
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Contribution: Data curation (equal), Formal analysis (equal)
Search for more papers by this authorYongqi Zhu
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Contribution: Data curation (equal), Formal analysis (equal)
Search for more papers by this authorChangzhao Chen
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Contribution: Data curation (equal), Investigation (equal)
Search for more papers by this authorHongzhou Dong
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Contribution: Investigation (lead), Project administration (lead)
Search for more papers by this authorCorresponding Author
Liyan Yu
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Correspondence:
Beili Pang ([email protected])
Liyan Yu ([email protected])
Lifeng Dong ([email protected])
Contribution: Funding acquisition (lead), Project administration (lead)
Search for more papers by this authorCorresponding Author
Lifeng Dong
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Department of Physics, Hamline University, St. Paul, Minnesota, USA
Correspondence:
Beili Pang ([email protected])
Liyan Yu ([email protected])
Lifeng Dong ([email protected])
Contribution: Conceptualization (lead), Project administration (lead), Writing - review & editing (lead)
Search for more papers by this authorXiying Wang
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Contribution: Conceptualization (equal), Data curation (lead), Writing - original draft (lead)
Search for more papers by this authorCorresponding Author
Beili Pang
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Correspondence:
Beili Pang ([email protected])
Liyan Yu ([email protected])
Lifeng Dong ([email protected])
Contribution: Conceptualization (lead), Funding acquisition (lead), Writing - review & editing (lead)
Search for more papers by this authorLingyi Kong
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Contribution: Data curation (equal), Formal analysis (equal)
Search for more papers by this authorYongqi Zhu
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Contribution: Data curation (equal), Formal analysis (equal)
Search for more papers by this authorChangzhao Chen
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Contribution: Data curation (equal), Investigation (equal)
Search for more papers by this authorHongzhou Dong
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Contribution: Investigation (lead), Project administration (lead)
Search for more papers by this authorCorresponding Author
Liyan Yu
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Correspondence:
Beili Pang ([email protected])
Liyan Yu ([email protected])
Lifeng Dong ([email protected])
Contribution: Funding acquisition (lead), Project administration (lead)
Search for more papers by this authorCorresponding Author
Lifeng Dong
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, China
Department of Physics, Hamline University, St. Paul, Minnesota, USA
Correspondence:
Beili Pang ([email protected])
Liyan Yu ([email protected])
Lifeng Dong ([email protected])
Contribution: Conceptualization (lead), Project administration (lead), Writing - review & editing (lead)
Search for more papers by this authorFunding: This work was supported by the National Natural Science Foundation of China (21905153, 22378221, 22308183, 52002198, 21776147, 61604086, ZR2023QB070), the Natural Science Foundation of Shandong Province (ZR2021YQ32), the Taishan Scholar Project of Shandong Province (tsqn201909117), the Qingdao Science and Technology Benefit the People Demonstration and Guidance Special Project (23-2-8-cspz-11-nsh), the Qingdao Natural Science Foundation (23-2-1-241-zyyd-jch), and the China Postdoctoral Science Foundation (2023M731856). Lifeng Dong also thanks financial support from the Malmstrom Endowed Fund at Hamline University.
ABSTRACT
Polyethylene oxide (PEO)-based polymers are commonly used in solid-state lithium-ion batteries, though their high crystallinity at room temperature reduces ionic conductivity. In this research, zeolitic imidazolate framework-67 (ZIF-67), with its regular dodecahedral structure, large surface area, and numerous nanoscopic pores, is synthesized and uniformly dispersed into a PEO matrix to create a novel composite polymer electrolyte (CPE). ZIF-67 effectively reduces PEO crystallinity and enhances the mechanical properties of the electrolyte by disrupting the order structure of the PEO polymer chains. The resulting CPE achieves an ion conductivity of 6.50 × 10−4 S cm−1, and demonstrated high interfacial compatibility and stability with optimized ZIF-67 content. Furthermore, the LiCoO2/CPE/Li battery exhibits good cycle stability at 0.1 C, with discharge capacities of 130.81, 125.31, and 112.25 mAh/g at 0.1, 0.2, and 0.5 C. Therefore, ZIF-67 presents a promising strategy for enhancing battery performance and developing high-performance lithium-ion batteries.
Conflicts of Interest
The authors declare no conflicts of interest.
Open Research
Data Availability Statement
The data that support the findings of this study are available from the corresponding author upon reasonable request.
Supporting Information
| Filename | Description |
|---|---|
| app56780-sup-0001-supinfo.docxWord 2007 document , 1.3 MB |
Figure S1. (a) SEM image of the PEO electrolyte membrane surface and corresponding EDS elemental mappings: (b) carbon (C), (c) oxygen (O), (d) fluorine (F), (e) sulfur (S), and (f) boron (B). Figure S2. (a) SEM image of the ZIF-67/PEO electrolyte membrane surface and corresponding EDS elemental mappings: (b) carbon (C), (c) oxygen (O), (d) fluorine (F), (e) sulfur (S), (f) boron (B), and (g) cobalt (Co). Figure S3. XPS survey spectra of PEO and ZIF-67/PEO electrolyte membranes. Figure S4. CV Curves of PEO-LiTFSI LiODFB electrolyte membranes prepared with varying contents of ZIF-67. Figure S5. Battery cycling curves at different rates for: (a) LiCoO2|PEO/LiTFSI LiODFB/1 wt% ZIF-67|Li, (b) LiCoO2|PEO/LiTFSI LiODFB/2 wt% ZIF-67|Li, (c) LiCoO2|PEO/LiTFSI LiODFB/4 wt% ZIF-67|Li, and (d) LiCoO2|PEO/LiTFSI LiODFB/6 wt% ZIF-67|Li. |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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