Preparation and Characterization of Hyperbranched Oligomer Modified LiMn2O4 thin Film Cathodes
| Autor: | K.-F. Chiu, Chang-Rung Yang, Cheng-Lun Chen, Hoang-Jyh Leu, Chen Chung Chen |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Electric vehicles C-rate Hyperbranched oligomer chemistry.chemical_element engineering.material Oligomer Cathode Characterization (materials science) law.invention Ion chemistry.chemical_compound chemistry Coating Chemical engineering Energy(all) law Polymer chemistry engineering LiMn2O4 Lithium Thermal stability Self-polymerized Thin film |
| Zdroj: | Energy Procedia. 61:2158-2163 |
| ISSN: | 1876-6102 |
| DOI: | 10.1016/j.egypro.2014.12.099 |
| Popis: | The LiMn 2 O 4 thin film electrode modified by hyperbranched oligomer has been prepared and studied. The hyperbranched oligomer can be self-polymerized for reducing the thermal-runaway hazard by the internal short protection mechanism in lithium ion batteries. The influence of the oligomer coating on cathode has been studied with the binder/carbon-free thin film. In the various C-rate charged-discharged tests, there are no significant differences between the cells with/without the oligomer coating. In this research, the hyperbranched oligomer additive acts as a protection to improve the thermal stability of LiMn 2 O 4 . Therefore, the property of thermal stability and its function in safety may benefit the future development of electric vehicles. |
| Databáze: | OpenAIRE |
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