Nanosized manganese oxide as cathode material for lithium batteries: Influence of carbon mixing and grinding on cyclability
| Autor: | Alejandro Ibarra-Palos, Pierre Strobel, Maria Bacia, Céline Darie, Jean-Bruno Soupart |
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| Rok vydání: | 2005 |
| Předmět: |
Sodium permanganate
Materials science Renewable Energy Sustainability and the Environment Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element Manganese Carbon black Lithium battery Grinding chemistry.chemical_compound Lithium iodide chemistry Lithium Electrical and Electronic Engineering Physical and Theoretical Chemistry Carbon |
| Zdroj: | Journal of Power Sources. 146:294-299 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2005.03.093 |
| Popis: | New manganese oxi-iodides were prepared by redox reaction of sodium permanganate with lithium iodide in aqueous medium at room temperature. The effects of Li/Mn ratio, carbon incorporation at the synthesis stage and grinding were systematically studied. Structural characterization showed that these materials are nanocrystalline. Best electrochemical results were obtained either on samples with carbon mixed after synthesized, submitted to extensive grinding before electrode fabrication, or on samples for which carbon black was incorporated directly in the aqueous reaction medium at the synthesis stage. Typical capacities in the potential window 1.8–3.8 V are160 and 130 mAh g −1 at the 40th and 100th cycle, respectively. |
| Databáze: | OpenAIRE |
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