Reaction Kinetics of Carbonation at the Surface of Garnet-Type Li7La3Zr2O12 as Solid Electrolytes for All-Solid-State Li Ion Batteries
Year: 2023
Type: article
Abstract: Garnet-type Li 7 La 3 Zr 2 O 12 has attracted attention as a promising candidate for solid electrolytes in all-solid-state lithium ion metal batteries because it exhibits high Li ion conductivity and is inert in the presence of metallic Li. However, this material is known to react with water and carbon dioxide gas, even under ambient conditions, which can cause degradation, such as a decrease in ionic conductivity. In this study, the reaction rate of the carbonation processes under both humid and dry conditions was evaluated using thermal analysis. We confirmed that carbonation did not occur at <700 K under dry conditions. The reaction kinetics were found to initially be phase-boundary controlled and then diffusion controlled, and the corresponding activation energies were estimated to be 0.5 and 0.8 eV, respectively.
Authors: Masanobu Nakayama, Takuya Horie, Ryosuke Natsume, Shogo Hashimura, Naoto Tanibata, Hayami Takeda, Hirotaka Maeda, Masashi Kotobuki
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $5,000
Awards: Control and Creation of Sulfur Redox in Amorphous Electrodes for Next-generation High-capacity Secondary Batteries, Discovering Ceramic Materials with Novel Compositions and Structures Based on Data Science, G4826549480, G6175377565, Rational search for optimal synthesis process conditions for storage battery materials using a combination of experiments and Bayesian optimisation, 実用化加速推進チーム, G843985618
OpenAlex ID: W4366249669