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Composite cathode prepared by argyrodite precursor solution assisted by dispersant agents for bulk-type all-solid-state batteries

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Title: Composite cathode prepared by argyrodite precursor solution assisted by dispersant agents for bulk-type all-solid-state batteries
Authors: Rosero-Navarro, Nataly Carolina Browse this author
Miura, Akira Browse this author →KAKEN DB
Tadanaga, Kiyoharu Browse this author →KAKEN DB
Keywords: Argyrodite precursor solution
Dispersant agents
Low resistance interface
All-solid-state battery
Issue Date: 31-Aug-2018
Publisher: Elsevier
Journal Title: Journal of power sources
Volume: 396
Start Page: 33
End Page: 40
Publisher DOI: 10.1016/j.jpowsour.2018.06.011
Abstract: All-solid-state lithium batteries based on sulfide solid electrolytes are potential candidates for large-scale energy storage applications. Here, composite cathode with high content of an active material was prepared by a liquid phase process assisted by a dispersant agent to produce a better electrode and electrolyte interface. Li6PS5Cl sulfide electrolyte derived from a solution containing dispersant showed an argyrodite crystal phase with a better distribution of particle size and higher conductivity compared with those without dispersant. Regular distribution of Li6PS5Cl particles in nanometric scale with a spherical shape below 500 nm and conductivity of 0.6 x 10(-3 )S cm(-1) (rho = 1.40 g cm(-3)) at room temperature were obtained. Composite cathode was prepared by the dispersion of LiNi1/3Mn1/3Co1/3O2 particles and carbon additive in the Li6PS5Cl-solution containing dispersant agent and subsequent drying at 180 degrees C. Bulk-type all-solid-state battery fabricated with the composite cathode containing 89 wt% of the active material showed an initial discharge capacity of 110 mA h g(-1) at 25 degrees C and maintained 95% discharge capacity after 15 cycles.
Rights: © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: Nataly Carolina Rosero Navarro

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