| Residential College | false |
| Status | 已發表Published |
| Insights into Electrode Architectures and Lithium‐Ion Transport in Polycrystalline V2O5 Cathodes of Solid‐State Batteries | |
Zhenjiang Yu1; Hongmei Shan2 ; unlei Zhong,3; Guo Hong4; wan San Hui5; Xia Zhang6; HUI KWUN NAM1
| |
| 2023-10 | |
| Source Publication | Small
 |
| Volume | 19Issue:43Pages:2303046 |
| Abstract | Polymer-based solid-state batteries (SSBs) have received increasing attentions due to the absence of interfacial problems in sulfide/oxide-type SSBs, but the lower oxidation potential of polymer-based electrolytes greatly limits the application of conventional high-voltage cathode such as LiNixCoyMnzO2 (NCM) and lithium-rich NCM. Herein, this study reports on a lithium-free V2O5 cathode that enables the applications of polymer-based solid-state electrolyte (SSE) with high energy density due to the microstructured transport channels and suitable operational voltage. Using a synergistic combination of structural inspection and non-destructive X-ray computed tomography (X-CT), it interprets the chemo–mechanical behavior that determines the electrochemical performance of the V2O5 cathode. Through detailed kinetic analyses such as differential capacity and galvanostatic intermittent titration technique (GITT), it is elucidated that the hierarchical V2O5 constructed through microstructural engineering exhibits smaller electrochemical polarization and faster Li-ion diffusion rates in polymer-based SSBs than those in the liquid lithium batteries (LLBs). By the hierarchical ion transport channels created by the nanoparticles against each other, superior cycling stability (≈91.7% capacity retention after 100 cycles at 1 C) is achieved at 60 °C in polyoxyethylene (PEO)-based SSBs. The results highlight the crucial role of microstructure engineering in designing Li-free cathodes for polymer-based SSBs. |
| Document Type | Journal article |
| Collection | INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING |
| Corresponding Author | Hongmei Shan; Guo Hong; HUI KWUN NAM |
| Affiliation | 1.nstitute of Applied Physics and Materials Engineering (IAPME), Zhuhai UM Science & Technology Research Institute (ZUMRI), University of Macau, Taipa, Macau SAR, China 2.College of Materials Science and Chemical Engineering Harbin Engineering University Harbin, Heilongjiang Province 150001, China 3.Key Laboratory of Multifunctional Nanomaterials and Smart Systems Division of Advanced Materials Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences Suzhou 215123, China 4.Department of Materials Science and Engineering & Center of Super-Diamond and Advanced Films City University of Hong Kong 83 Tat Chee Avenue, Kowloon, Hong Kong SAR 999077, Chin 5.School of Engineering, Faculty of Science, University of East Anglia, Norwich, UK 6.nstitute of Applied Materials Helmholtz Centre Berlin for Materials and Energy Hahn-Meitner-Platz 1, 14109 Berlin, Germany |
| First Author Affilication | University of Macau |
| Corresponding Author Affilication | University of Macau |
| Recommended Citation GB/T 7714 | Zhenjiang Yu,Hongmei Shan,unlei Zhong,,et al. Insights into Electrode Architectures and Lithium‐Ion Transport in Polycrystalline V2O5 Cathodes of Solid‐State Batteries[J]. Small, 2023, 19(43), 2303046. |
| APA | Zhenjiang Yu., Hongmei Shan., unlei Zhong,., Guo Hong., wan San Hui., Xia Zhang., & HUI KWUN NAM (2023). Insights into Electrode Architectures and Lithium‐Ion Transport in Polycrystalline V2O5 Cathodes of Solid‐State Batteries. Small, 19(43), 2303046. |
| MLA | Zhenjiang Yu,et al."Insights into Electrode Architectures and Lithium‐Ion Transport in Polycrystalline V2O5 Cathodes of Solid‐State Batteries".Small 19.43(2023):2303046. |
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