DataVXACS Applied Energy MaterialsPaper
journal article·2020-02-24

Low Interface Resistance in Solid-State Lithium Batteries Using Spinel LiNi0.5Mn1.5O4(111) Epitaxial Thin Films

Hideyuki Kawasoko, Tetsuroh Shirasawa, Susumu Shiraki, Toru Suzuki, Shigeru Kobayashi, Kazunori Nishio, Ryota Shimizu, Taro Hitosugi

ACS Applied Energy Materials· Volume 3· Issue 2
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Source abstract

Abstract

Solid-state Li batteries that use spinel LiNi0.5Mn1.5O4 as a positive electrode are promising energy-storage devices for portable electronics and electric vehicles. For practical applications of such batteries, it is crucial to understand the ionic conductivity across the solid-electrolyte/electrode interfaces. Here, we demonstrate a low interface resistance of 34 Ω cm2 in solid-state Li batteries using LiNi0.5Mn1.5O4(111) epitaxial thin films with atomically ordered surfaces as the positive electrode. Further, we find that the interface resistance using Li3PO4/LiNi0.5Mn1.5O4(111) is larger than that using LiNi0.5Mn1.5O4(001) epitaxial thin films. These results indicate the presence of anisotropic interface resistance when different facets of spinel LiNi0.5Mn1.5O4 are used as the positive electrode.
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Research context

Energy storage

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced battery technologies research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry, Tohoku University, Sendai 980-8577, Japan

Advanced Institute for Materials Research (AIMR), Tohoku University, Sendai 980-8577, Japan

National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8565, Japan

Department of Applied Chemistry, Nippon Institute of Technology, Saitama 345-8501, Japan

School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo 152-8550, Japan

PRESTO, Japan Science and Technology Agency, Saitama 332-0012, Japan

Funding

New Energy and Industrial Technology Development Organization · Toyota Motor Corporation · Core Research for Evolutional Science and Technology · Japan Society for the Promotion of Science

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