In situ transmission electron microscopy of crystal growth-mode transitions during rapid solidification of a hypoeutectic Al–Cu alloy

JT McKeown, AK Kulovits, C Liu, K Zweiacker… - Acta Materialia, 2014 - Elsevier
The rapid solidification dynamics of a pulsed-laser-melted hypoeutectic Al–Cu thin-film alloy
were monitored using in situ transmission electron microscopy with high spatial and …

Ionic conductivity and crystallization process in the Li2S–P2S5 glass electrolyte

H Tsukasaki, S Mori, S Shiotani, H Yamamura - Solid State Ionics, 2018 - Elsevier
The ionic conductivity of the Li 2 S–P 2 S 5 glass electrolyte systems strongly depends on
the type of precipitated crystalline phases and heat-treatment conditions. To clarify the …

Y2S3-Doped Li2S Active Cathode Materials for All-Solid-State Li–S Batteries

K Hikima, R Fujii, H Gamo, H Tsukasaki… - The Journal of …, 2023 - ACS Publications
All-solid-state Li–S batteries with sulfur-based cathodes have attracted attention, because of
their high theoretical energy density. However, it is difficult to transfer electrons and ions and …

Composition and automated crystal orientation mapping of rapid solidification products in hypoeutectic Al-4 at.% Cu alloys

KW Zweiacker, C Liu, MA Gordillo, JT McKeown… - Acta Materialia, 2018 - Elsevier
Rapid solidification can produce metastable phases and unusual microstructure
modifications in multi-component alloys during additive manufacturing or laser beam …

High ionic conductivity of multivalent cation doped Li 6 PS 5 Cl solid electrolytes synthesized by mechanical milling

K Hikima, NHH Phuc, H Tsukasaki, S Mori, H Muto… - RSC …, 2020 - pubs.rsc.org
The performances of next generation all-solid-state batteries might be improved by using
multi-valent cation doped Li6PS5Cl solid electrolytes. This study provided solid electrolytes …

Exothermal mechanisms in the charged LiNi1/3Mn1/3Co1/3O2 electrode layers for sulfide-based all-solid-state lithium batteries

H Tsukasaki, T Uchiyama, K Yamamoto, S Mori… - Journal of Power …, 2019 - Elsevier
Sulfide-based all-solid-state lithium batteries are a possible next-generation power source
due to their incombustibility and large energy density. A composite comprising LiNi 1/3 Mn …

Ionic conductivity and thermal stability of Li2O–Li2S–P2S5 oxysulfide glass

H Tsukasaki, H Morimoto, S Mori - Solid State Ionics, 2020 - Elsevier
Sulfide-based solid electrolytes exhibit high ionic conductivities of more than 10− 4 S cm− 1
at room temperature. However, sulfide electrolytes have a major disadvantage because they …

Quantitative transmission electron microscopy analysis of multi-variant grains in present L1-FePt based heat assisted magnetic recording media

H Ho, J Zhu, A Kulovits, DE Laughlin… - Journal of Applied …, 2014 - pubs.aip.org
We present a study on atomic ordering within individual grains in granular L1 0-FePt thin
films using transmission electron microscopy techniques. The film, used as a medium for …

Microstructure and Charge–Discharge Mechanism of a Li3CuS2 Positive Electrode Material for All-Solid-State Lithium-Ion Batteries

T Ayama, H Tsukasaki, Y Kawasaki… - ACS Applied Energy …, 2021 - ACS Publications
To develop all-solid-state lithium batteries, high-capacity positive electrode materials are
necessary. An antifluorite-type material, Li2S, exhibits a high theoretical capacity. However …

Electrochemical Properties of Li10GeP2S12 Solid Electrolytes Synthesized Using a Solution-Based Method

K Hikima, R Kishi, H Tsukasaki, S Mori… - ACS Applied Energy …, 2024 - ACS Publications
Li10GeP2S12 is a promising solid electrolyte for solid-state batteries owing to its high ionic
conductivity. Although the conventional method of synthesizing Li10GeP2S12 in the liquid …