Solid Thin-Film Battery Using a Densely Packed LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> Crystal Layer
A 5 V-class LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> (LNMO) positive electrode has excellent potential for increasing the energy density of solid-state Li batteries. In this study, we report the stable cycling of a solid thin-film Li battery using a densely packed LNMO crystal layer, which has a high packing density and a well-developed crystal plane. Annealing a battery reduces the resistance at the interface of a Li<sub>3</sub>PO<sub>4</sub> solid electrolyte and LNMO for an order of magnitude, from 5.3 × 10<sup>2</sup> to 5.7 × 10<sup>1</sup> Ωcm<sup>2</sup>, enhancing the battery performance. This paper lays the groundwork for developing all-solid-state Li batteries using densely packed LNMO layers.
Authors
- Ryota Shimizu (ORCID: https://orcid.org/0000-0001-9600-7255)
- Nobuyuki Zettsu (ORCID: https://orcid.org/0000-0003-2838-3165)
- Katsuya Teshima (ORCID: https://orcid.org/0000-0002-5784-5157)
- Kazunori Nishio (ORCID: https://orcid.org/0000-0002-8201-358X)
- Shigeru Kobayashi (ORCID: https://orcid.org/0000-0003-4997-8782)
- Yoshiki Saito (ORCID: https://orcid.org/0000-0002-6914-3945)
- Taro Hitosugi (ORCID: https://orcid.org/0000-0002-7795-0683)
- Toshiki Imabori
Institutions
- Tokyo Institute of Technology (JP)
- Ōtani University (JP)
- Institute of Science Tokyo (JP)
- The University of Tokyo (JP)
Publication Details
- Journal
- ACS Omega
- Published
- 2025-04-18
- DOI
- https://doi.org/10.1021/acsomega.4c09393
- Primary Topic
- Advancements in Battery Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Ministry of Education, Culture, Sports, Science and Technology
- Japan Society for the Promotion of Science
- Core Research for Evolutional Science and Technology