Chemical‐Vapor Deposition‐Based Template Synthesis of Microtubular TiS2 Battery Electrodes
| Autor: | Charles R. Martin, Ellen R. Fisher, Kshama B. Jirage, Guangli Che, Hiroshi Yoneyama |
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| Rok vydání: | 1997 |
| Předmět: |
Renewable Energy
Sustainability and the Environment Chemistry Inorganic chemistry Chemical vapor deposition Current collector Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Nanomaterials Chemical engineering Electrode Materials Chemistry Electrochemistry Thin film Cyclic voltammetry Current density Template method pattern |
| Zdroj: | Journal of The Electrochemical Society. 144:4296-4302 |
| ISSN: | 1945-7111 0013-4651 |
| DOI: | 10.1149/1.1838181 |
| Popis: | The authors have been exploring a general route for preparing nanomaterials called template synthesis. The application of the template method to the preparation of microtubular battery electrodes is described here. The template method is used to prepare a current collector that consists of an ensemble of metal microtubules that protrude from a metal surface like the bristles of a brush. Chemical vapor deposition is then used to coat this high surface area microtubule-based current collector with a thin skin of the desired Li{sup +}-intercalation material, in this case TiS{sub 2}. In this way, a thin-walled tubule of TiS{sub 2} is formed on the outer surface of each metal microtubule. The thin walls of these TiS{sub 2} tubes insure that the distance over which Li{sup +} must diffuse is small, and the high surface area insures that the current density is low. These microtubular TiS{sub 2} electrodes showed higher capacities, lower resistance, and lower susceptibility to slow electron transfer kinetics than thin film (control) TiS{sub 2} electrodes prepared form the same amount of TiS{sub 2}. |
| Databáze: | OpenAIRE |
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