DataVXACS Applied Materials & InterfacesPaper
journal article·2018-12-05

Atomically Well-Ordered Structure at Solid Electrolyte and Electrode Interface Reduces the Interfacial Resistance

Susumu Shiraki, Tetsuroh Shirasawa, Tohru Suzuki, Hideyuki Kawasoko, Ryota Shimizu, Taro Hitosugi

ACS Applied Materials & Interfaces· Volume 10· Issue 48
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Source abstract

Abstract

Using synchrotron surface X-ray diffraction, we investigated the atomic structures of the interfaces of a solid electrolyte (Li3PO4) and electrode (LiCoO2). We prepared two types of interfaces with high and low interface resistances; the low-resistance interface exhibited a flat and well-ordered atomic arrangement at the electrode surface, whereas the high-resistance interface showed a disordered interface. These results indicate that the crystallinity of LiCoO2 at the interface has a significant impact on interface resistance. Furthermore, we reveal that the migration of Li ions along the interface and into grain boundaries and antiphase domain boundaries is a critical factor reducing interface resistance.
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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 Applied Chemistry, Nippon Institute of Technology, Saitama 345-8501, Japan

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

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

JST, PRESTO, Kawaguchi, Saitama 332-0012, Japan

School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo 152-8552, Japan

Funding

New Energy and Industrial Technology Development Organization · Ministry of Education, Culture, Sports, Science and Technology · Toyota Motor Corporation · Core Research for Evolutional Science and Technology · Precursory Research for Embryonic Science and Technology · Advanced Low Carbon Technology Research and Development Program

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