Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
Feature: The 56th Symposium on Basic Science of Ceramics: Full papers
Preparation of LiNi1/3Mn1/3Co1/3O2/Li3PS4 cathode composite particles using a new liquid-phase process and application to all-solid-state lithium batteries
Reiko MATSUDAEito HIRAHARANguyen Huu Huy PHUCHiroyuki MUTOHirofumi TSUKASAKIShigeo MORIAtsunori MATSUDA
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2018 Volume 126 Issue 10 Pages 826-831

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Abstract

The sulfide based electrolyte Li3PS4 was directly produced on the cathode active materials LiNi1/3Mn1/3Co1/3O2 (NMC) using the SEED method which was a new liquid-phase process developed by applying liquid-phase shaking method. The generation of PS43− unit in the SEED process was confirmed by in-situ Raman spectroscopy measurement. The generation of β-Li3PS4 on NMC was shown using X-ray elemental mapping, transmission electron microscope observation and electron diffraction analysis. An all-solid-state cell composed of [90NMC·10Li3PS4 by SEED composite | Li3PS4 | In] was fabricated. It showed promising charge–discharge cycle performance, which could be ascribed to good retention of electrochemical contact at the interface between NMC and the electrolyte during the cycling.

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© 2018 The Ceramic Society of Japan
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