Nanostructured metal oxides for anodes of Li-ion rechargeable batteries
| Autor: | Thad Adams, Ming Au |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Materials science
Nanostructure Nanoporous Mechanical Engineering Oxide chemistry.chemical_element Condensed Matter Physics Energy storage Anode Metal chemistry.chemical_compound chemistry Chemical engineering Mechanics of Materials visual_art visual_art.visual_art_medium General Materials Science Lithium Nanorod |
| Zdroj: | Journal of Materials Research. 25:1649-1655 |
| ISSN: | 2044-5326 0884-2914 |
| Popis: | The aligned freestanding nanorods (NR) of Co3O4 and nanoporous hollow spheres (NHS) of SnO2 and Mn2O3 were investigated as the anodes for Li-ion rechargeable batteries. The Co3O4 nanorods demonstrated 1433 mAh/g of reversible capacity initially and then decreased gradually. The NHS of SnO2 and Mn2O3 delivered energy densities as 400 and 250 mAh/g, respectively, in multiple galvonastatic discharge–charge cycles. The morphologic changes of the nanostructure anodes were investigated. It was found that Co3O4 NR broke down during cycles, but SnO2 NHS still maintained their structural integrity in multiple cycles resulting in sustainable high capacity. The nanostructured metal oxides exhibit great potential as the new anode materials for Li-ion rechargeable batteries with high energy density, low cost, and inherent safety. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink