Effect of polypyrrole coating on Li powder anode for lithium-sulfur secondary batteries

Soo jung Oh; Woo young Yoon

doi:10.1007/s12541-014-0490-y

Effect of polypyrrole coating on Li powder anode for lithium-sulfur secondary batteries

Soo jung Oh, Woo young Yoon

Department of Materials Science and Engineering

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

10 Citations (Scopus)

Abstract

Polyppyrole (PPy)-coated Li powders were prepared via planetary milling techniques and used as an anode material for rechargeable Lithium-Sulfur (Li-S) batteries. The PPy-coated Li powder anode was analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electrochemical impedance spectroscopy (EIS). The PPy coating on the Li powder provided the protection layer to inhibit the electrochemical reaction between the Li powder anode and dissolved lithium polysulfide anions in the electrolyte, which minimized the overcharge and reduced the capacity fading. The charge-discharge process of the PPy-coated Li powder anode cell showed a capacity of 878 mAh g^-1 at 1^st cycle and 500 mAh g^-1 after 50^th cycles.

Original language	English
Pages (from-to)	1453-1457
Number of pages	5
Journal	International Journal of Precision Engineering and Manufacturing
Volume	15
Issue number	7
DOIs	https://doi.org/10.1007/s12541-014-0490-y
Publication status	Published - 2014 Jul

Keywords

Li powder electrode
Lithium-Sulfur batteries
Polypyrrole

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

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10.1007/s12541-014-0490-y

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title = "Effect of polypyrrole coating on Li powder anode for lithium-sulfur secondary batteries",

abstract = "Polyppyrole (PPy)-coated Li powders were prepared via planetary milling techniques and used as an anode material for rechargeable Lithium-Sulfur (Li-S) batteries. The PPy-coated Li powder anode was analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electrochemical impedance spectroscopy (EIS). The PPy coating on the Li powder provided the protection layer to inhibit the electrochemical reaction between the Li powder anode and dissolved lithium polysulfide anions in the electrolyte, which minimized the overcharge and reduced the capacity fading. The charge-discharge process of the PPy-coated Li powder anode cell showed a capacity of 878 mAh g-1 at 1st cycle and 500 mAh g-1 after 50th cycles.",

keywords = "Li powder electrode, Lithium-Sulfur batteries, Polypyrrole",

author = "Oh, {Soo jung} and Yoon, {Woo young}",

note = "Funding Information: This work was supported by the Industrial Strategic Technology Development Program (10045221, Development of dendrite-free Li-metal anode for high energy Li-metal secondary battery) funded by the Ministry of Knowledge Economy (MKE, Korea)",

year = "2014",

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doi = "10.1007/s12541-014-0490-y",

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T1 - Effect of polypyrrole coating on Li powder anode for lithium-sulfur secondary batteries

AU - Oh, Soo jung

AU - Yoon, Woo young

N1 - Funding Information: This work was supported by the Industrial Strategic Technology Development Program (10045221, Development of dendrite-free Li-metal anode for high energy Li-metal secondary battery) funded by the Ministry of Knowledge Economy (MKE, Korea)

PY - 2014/7

Y1 - 2014/7

N2 - Polyppyrole (PPy)-coated Li powders were prepared via planetary milling techniques and used as an anode material for rechargeable Lithium-Sulfur (Li-S) batteries. The PPy-coated Li powder anode was analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electrochemical impedance spectroscopy (EIS). The PPy coating on the Li powder provided the protection layer to inhibit the electrochemical reaction between the Li powder anode and dissolved lithium polysulfide anions in the electrolyte, which minimized the overcharge and reduced the capacity fading. The charge-discharge process of the PPy-coated Li powder anode cell showed a capacity of 878 mAh g-1 at 1st cycle and 500 mAh g-1 after 50th cycles.

AB - Polyppyrole (PPy)-coated Li powders were prepared via planetary milling techniques and used as an anode material for rechargeable Lithium-Sulfur (Li-S) batteries. The PPy-coated Li powder anode was analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electrochemical impedance spectroscopy (EIS). The PPy coating on the Li powder provided the protection layer to inhibit the electrochemical reaction between the Li powder anode and dissolved lithium polysulfide anions in the electrolyte, which minimized the overcharge and reduced the capacity fading. The charge-discharge process of the PPy-coated Li powder anode cell showed a capacity of 878 mAh g-1 at 1st cycle and 500 mAh g-1 after 50th cycles.

KW - Li powder electrode

KW - Lithium-Sulfur batteries

KW - Polypyrrole

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SN - 1229-8557

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JO - International Journal of Precision Engineering and Manufacturing

JF - International Journal of Precision Engineering and Manufacturing

IS - 7

ER -

Effect of polypyrrole coating on Li powder anode for lithium-sulfur secondary batteries

Abstract

Keywords

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