The Effect of Annealing Temperature on the Synthesis of Nickel Ferrite Films as High-Capacity Anode Materials for Lithium Ion Batteries
| Autor: | Bum-Kyoung Seo, Sung-Joo Shim, Mansoo Choi, Yang-Il Jung, Hyun-Soo Kim |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
anode thermal treatment nickel ferrites li-ion batteries Annealing (metallurgy) General Chemical Engineering chemistry.chemical_element Thermal treatment Microstructure Evaporation (deposition) Article Anode Chemistry chemistry Chemical engineering Ferrite (iron) Electrode General Materials Science Lithium QD1-999 |
| Zdroj: | Nanomaterials; Volume 11; Issue 12; Pages: 3238 Nanomaterials Nanomaterials, Vol 11, Iss 3238, p 3238 (2021) |
| ISSN: | 2079-4991 |
| DOI: | 10.3390/nano11123238 |
| Popis: | Anode materials providing a high specific capacity with a high cycling performance are one of the key parameters for lithium ion batteries’ (LIBs) applications. Herein, a high-capacity NiFe2O4(NFO) film anode is prepared by E-beam evaporation, and the effect of the heat treatment is studied on the microstructure and electrochemical properties of LIBs. The NiFe2O4 film annealed at 800 °C (NFO-800) showed a highly crystallized structure and different surface morphologies when compared to the electrode annealed at a lower temperature (NFO-600, NFO-700). In the electrochemical measurements, the high specific capacity (1804 mA g−1) and capacity retention ratio (95%) after 100 cycles were also achieved by the NFO-800 electrode. The main reason for the good electrochemical performance of the NFO-800 electrode is a high structure integrity, which could improve the cycle stability with a high discharge capacity. The NiFe2O4 electrode with an annealing process could be further proposed as an alternative ferrite material. |
| Databáze: | OpenAIRE |
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