DataVXACS Applied Energy MaterialsPaper
journal article·2025-12-22Open access

Enhanced Charge-Transfer Kinetics Enabled by ZrO 2 –Based Dielectric Layers in Lithium-Ion Batteries

Takashi Teranishi, Yusuke Higaki, Tomonori Imamura, Motoki Horibe, Shinya Kondo, Chinatsu Sasaoka, Hikaru Hirabaru, Shingo Katayama, Masanobu Nakayama, Akira Kishimoto

ACS Applied Energy Materials· Volume 8· Issue 24
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Source abstract

Abstract

High Resolution Image Download MS PowerPoint Slide The development of high-rate capability lithium-ion batteries (LIBs) requires suppression of charge-transfer resistance ( R CT ) at electrode–electrolyte interfaces. Here, zirconia-based dielectric oxides (MZ; M = Y, Gd, Sm, Er, etc.) were introduced onto LiCoO 2 (LCO) surfaces as electronically and ionically insulating modifiers to accelerate interfacial ion transport. Electrochemical impedance spectroscopy showed that Y 2 O 3 modified ZrO 2 (YZ) decoration reduced R CT from 75.8 Ω in reference LCO to 38.3 Ω, accompanied by a 2.3-fold improvement in capacity retention at 20C. Density functional theory molecular dynamics (DFT–MD) simulations showed that solvated Li ions coordinate with surface oxygen atoms in discharging, and that adsorption energies are governed by local charge distributions determined by stabilizing cations. Optimal adsorption activity, and thus the lowest R CT, occurred when the surface charge corrugation was balanced. These findings provide design principles for dielectric interface engineering to enhance rate capability of LIBs.
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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

Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita, Okayama 700−8530, Japan

Laboratory for Materials and Structures, Institute of Science Tokyo, 4259 Nagatsuta, Midori, Yokohama 226−8503, Japan

Department of Advanced Ceramics, Nagoya Institute of Technology, Gokiso−cho, Syowa−ku, Nagoya 466−8555, Japan

Department of Energy Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464−8603, Japan

R&D Laboratory, Nippon Denko Co., Ltd., 1-4-16, Yaesu, Chuo-ku, Tokyo 103−8282, Japan

Funding

Murata Science and Education Foundation · Core Research for Evolutional Science and Technology · Japan Society for the Promotion of Science · David Suzuki Foundation · Iwatani Naoji Foundation · Collaborative Research Projects of the Materials and Structures Laboratory, Institute of Integrated Research, Institute of Science Tokyo

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