Synthesis of nanostructured LiMn2O4thin films by glancing angle deposition for Li-ion battery applications
| Autor: | Chinmay Khare, F LaMantia, Michael Kieschnick, Alfred Ludwig, Sara Borhani-Haghighi, Rafael Trócoli, Anastasia Dushina |
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| Rok vydání: | 2016 |
| Předmět: |
Battery (electricity)
Materials science Fabrication Bioengineering Nanotechnology 02 engineering and technology 010402 general chemistry Electrochemistry 01 natural sciences law.invention Crystallinity law General Materials Science Electrical and Electronic Engineering Thin film business.industry Mechanical Engineering General Chemistry Sputter deposition 021001 nanoscience & nanotechnology Cathode 0104 chemical sciences Carbon film Mechanics of Materials Optoelectronics 0210 nano-technology business |
| Zdroj: | Nanotechnology. 27:455402 |
| ISSN: | 1361-6528 0957-4484 |
| Popis: | The development of electric vehicles and portable electronic devices demands lighter and thinner batteries with improved specific charge and rate capabilities. In this work, thin films of LiMn2O4 were fabricated by rf magnetron sputtering. Glancing angle deposition is introduced as a promising approach for fabrication of porous cathode thin films with 2.6 times the capacity in comparison with conventionally sputtered films of the same thickness. Surface morphology and crystallinity of the films are studied along with their electrochemical performance in an aqueous electrolyte. The glancing angle deposited films can reach a rate capability of up to 4 mA cm-2 with minimal energy loss, and a life cycle longer than 100 charge/discharge cycles. |
| Databáze: | OpenAIRE |
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