Zr-Doped High-Voltage Spinel LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> Manufactured via the Coprecipitation Method
Lithium nickel manganese oxide (LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub>, LNMO) provides an elevated operating potential of 4.7 V and a theoretical capacity of 147 mAh g<sup>-1</sup>, without the need for expensive cobalt. Zr-doped LNMO was synthesized using the coprecipitation technique with Couette-Taylor flow. FE-SEM images and TEM SAED patterns revealed that Zr-doped LNMO formed truncated octahedral structures with exposed (100) crystal facets. When compared to undoped LNMO, Zr-doped LNMO exhibited superior electrochemical performance. Electrochemical evaluations showed that Zr<sub>0.1</sub>-LNMO achieved 85.9% rate capability at 10 C, significantly outperforming the 69.1% of bare LNMO. In addition, Zr<sub>0.1</sub>-LNMO exhibited high stability, maintaining 76.8% of the discharge capacity even after 100 cycles.
Authors
- Jinsub Lim (ORCID: https://orcid.org/0000-0001-9996-2127)
- Younghoon Jung
- Jung-Hwan Lee (ORCID: https://orcid.org/0000-0002-4100-2315)
- Min Young Kim (ORCID: https://orcid.org/0000-0001-7263-3403)
- Young-Woong Song
Institutions
- Chonnam National University (KR)
- Korea Institute of Industrial Technology (KR)
Publication Details
- Journal
- Langmuir
- Published
- 2024-10-18
- DOI
- https://doi.org/10.1021/acs.langmuir.4c02846
- Citations
- 11
- Primary Topic
- Advancements in Battery Materials
- Type
- article
- Field-Weighted Citation Impact
- 2.30
Funders
- Agency for Defense Development
- Korea Institute of Energy Technology Evaluation and Planning