| Autor: |
Yuki UMEMURA, Tomonari TAKEUCHI, Hikari SAKAEBE, Hisao KIUCHI, Toyonari YAJI, Misaki KATAYAMA |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Electrochemistry, Vol 89, Iss 3, Pp 273-278 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2186-2451 |
| DOI: |
10.5796/electrochemistry.21-00026 |
| Popis: |
Vanadium tetrasulfide (VS4) have been attracting attention as the promising positive electrode material for next generation batteries because of its high theoretical capacity (1196 mAh g−1). In this study, a typical element (i.e., Phosphorus) was introduced into VS4 for an attempt to improve the electrochemical cycle performance of VS4. The prepared PxVSy showed significant increase in cycle capability; e.g., ca. 70 % after 50 cycles for P0.4VS5.0 sample cell, being much higher than that of pristine VS4 cell (ca. 10 %). The PDF (pair distribution function) analyses indicated that the structural reversibility of VS4 for Li insertion/extraction reactions was improved by the phosphorus addition. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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