| Autor: |
Su, Yantao, Gu, Dawei, Shao, Youdong, Wang, Xinwei, Pan, Feng |
| Zdroj: |
Functional Materials Letters (FML); February 2019, Vol. 12 Issue: 1 |
| Abstrakt: |
Surface coating of LiNi0.5Mn0.3Co0.2O2(NMC532) is an effective approach to improve the capacity retention and energy density through increasing cutoff operation voltage. In this work, NMC532 electrodes are directly coated with Ta2O5via atomic layer deposition (ALD). The 5 cycles ALD-Ta2O5-coated electrodes have the significantly enhanced capacity cyclability. The high-quality amorphous ALD-Ta2O5layer retards the interfacial reaction between NMC532 and electrolyte, and prevents the dissolution of the active materials, improving the phase stability of the NMC532 materials. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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