Preparation of electrochemically active lithium sulfide-carbon composites using spark-plasma-sintering process

Tomonari Takeuchi; Hikari Sakaebe; Hiroyuki Kageyama; Hiroshi Senoh; Tetsuo Sakai; Kuniaki Tatsumi

doi:10.1016/j.jpowsour.2009.11.011

Preparation of electrochemically active lithium sulfide-carbon composites using spark-plasma-sintering process

Tomonari Takeuchi, Hikari Sakaebe, Hiroyuki Kageyama, Hiroshi Senoh, Tetsuo Sakai, Kuniaki Tatsumi

Research output: Contribution to journal › Article › peer-review

68 Citations (Scopus)

Abstract

Electrochemically active lithium sulfide-carbon (Li₂S-C) composite positive electrodes, applicable for rechargeable lithium-ion batteries, were prepared using spark-plasma-sintering (SPS) process. The electrochemical tests demonstrated that the SPS-treated Li₂S-C composites showed the initial charge and discharge capacities of ca. 1200 and 200 mAh g^-1, respectively, though Li₂S has been reported to show no significant charge capacities when conventionally mixed with carbon powder. Such activation of Li₂S was attributed principally to strong bindings between Li₂S and carbon powders, formed by the SPS treatment. The ex situ XRD measurements showed that some amounts of Li₂S were still remained unchanged and any elemental sulfur was not detected even at fully charged state, which was similar to Li/S cells.

Original language	English
Pages (from-to)	2928-2934
Number of pages	7
Journal	Journal of Power Sources
Volume	195
Issue number	9
DOIs	https://doi.org/10.1016/j.jpowsour.2009.11.011
Publication status	Published - May 1 2010
Externally published	Yes

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jpowsour.2009.11.011

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title = "Preparation of electrochemically active lithium sulfide-carbon composites using spark-plasma-sintering process",

abstract = "Electrochemically active lithium sulfide-carbon (Li2S-C) composite positive electrodes, applicable for rechargeable lithium-ion batteries, were prepared using spark-plasma-sintering (SPS) process. The electrochemical tests demonstrated that the SPS-treated Li2S-C composites showed the initial charge and discharge capacities of ca. 1200 and 200 mAh g-1, respectively, though Li2S has been reported to show no significant charge capacities when conventionally mixed with carbon powder. Such activation of Li2S was attributed principally to strong bindings between Li2S and carbon powders, formed by the SPS treatment. The ex situ XRD measurements showed that some amounts of Li2S were still remained unchanged and any elemental sulfur was not detected even at fully charged state, which was similar to Li/S cells.",

author = "Tomonari Takeuchi and Hikari Sakaebe and Hiroyuki Kageyama and Hiroshi Senoh and Tetsuo Sakai and Kuniaki Tatsumi",

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T1 - Preparation of electrochemically active lithium sulfide-carbon composites using spark-plasma-sintering process

AU - Takeuchi, Tomonari

AU - Sakaebe, Hikari

AU - Kageyama, Hiroyuki

AU - Senoh, Hiroshi

AU - Sakai, Tetsuo

AU - Tatsumi, Kuniaki

PY - 2010/5/1

Y1 - 2010/5/1

N2 - Electrochemically active lithium sulfide-carbon (Li2S-C) composite positive electrodes, applicable for rechargeable lithium-ion batteries, were prepared using spark-plasma-sintering (SPS) process. The electrochemical tests demonstrated that the SPS-treated Li2S-C composites showed the initial charge and discharge capacities of ca. 1200 and 200 mAh g-1, respectively, though Li2S has been reported to show no significant charge capacities when conventionally mixed with carbon powder. Such activation of Li2S was attributed principally to strong bindings between Li2S and carbon powders, formed by the SPS treatment. The ex situ XRD measurements showed that some amounts of Li2S were still remained unchanged and any elemental sulfur was not detected even at fully charged state, which was similar to Li/S cells.

AB - Electrochemically active lithium sulfide-carbon (Li2S-C) composite positive electrodes, applicable for rechargeable lithium-ion batteries, were prepared using spark-plasma-sintering (SPS) process. The electrochemical tests demonstrated that the SPS-treated Li2S-C composites showed the initial charge and discharge capacities of ca. 1200 and 200 mAh g-1, respectively, though Li2S has been reported to show no significant charge capacities when conventionally mixed with carbon powder. Such activation of Li2S was attributed principally to strong bindings between Li2S and carbon powders, formed by the SPS treatment. The ex situ XRD measurements showed that some amounts of Li2S were still remained unchanged and any elemental sulfur was not detected even at fully charged state, which was similar to Li/S cells.

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Preparation of electrochemically active lithium sulfide-carbon composites using spark-plasma-sintering process

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

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