Charge/discharge performances of glyme-lithium salt equimolar complex electrolyte for lithium secondary batteries

Shiro Seki; Nobuyuki Serizawa; Katsuhito Takei; Kaoru Dokko; Masayoshi Watanabe

doi:10.1016/j.jpowsour.2013.06.005

Charge/discharge performances of glyme-lithium salt equimolar complex electrolyte for lithium secondary batteries

Shiro Seki, Nobuyuki Serizawa, Katsuhito Takei, Kaoru Dokko, Masayoshi Watanabe

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

22 Citations (Scopus)

Abstract

The electrochemical and battery performances of a CH₃-O-(C ₂H₄O)₃-CH₃/LiN(SO₂CF ₃)₂ 1:1 equimolar complex electrolyte were evaluated using [Li metal|Li metal], [LiFePO₄|Li metal], and [LiNi _1/3Mn_1/3Co_1/3O₂|Li metal] cells. A relatively favorable surface was formed at the Li metal/electrolyte interface revealed by observation of the storage time dependence of the electrochemical impedance spectroscopy. A 3V-class [LiFePO₄|Li metal] cell exhibited favorable capacity retention with little degradation after 600 cycles (2.5-4.0 V). A 4V-class [LiNi_1/3Mn_1/3Co_1/3O ₂|Li metal] cell also exhibited good capacity retention of approximately 60% of the initial discharge capacity after 400 cycles (2.7-4.2 V), while the capacity retention decreased markedly upon increasing the upper charge cutoff voltage above 4.4 V.

Original language	English
Pages (from-to)	323-327
Number of pages	5
Journal	Journal of Power Sources
Volume	243
DOIs	https://doi.org/10.1016/j.jpowsour.2013.06.005
Publication status	Published - 2013
Externally published	Yes

Keywords

Charge/discharge
Glyme
Lithium salt
Long cycle life
Safety electrolyte

ASJC Scopus subject areas

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.2013.06.005

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@article{1d67c7aeebb64268b70e39b0c78079ab,

title = "Charge/discharge performances of glyme-lithium salt equimolar complex electrolyte for lithium secondary batteries",

abstract = "The electrochemical and battery performances of a CH3-O-(C 2H4O)3-CH3/LiN(SO2CF 3)2 1:1 equimolar complex electrolyte were evaluated using [Li metal|Li metal], [LiFePO4|Li metal], and [LiNi 1/3Mn1/3Co1/3O2|Li metal] cells. A relatively favorable surface was formed at the Li metal/electrolyte interface revealed by observation of the storage time dependence of the electrochemical impedance spectroscopy. A 3V-class [LiFePO4|Li metal] cell exhibited favorable capacity retention with little degradation after 600 cycles (2.5-4.0 V). A 4V-class [LiNi1/3Mn1/3Co1/3O 2|Li metal] cell also exhibited good capacity retention of approximately 60% of the initial discharge capacity after 400 cycles (2.7-4.2 V), while the capacity retention decreased markedly upon increasing the upper charge cutoff voltage above 4.4 V.",

keywords = "Charge/discharge, Glyme, Lithium salt, Long cycle life, Safety electrolyte",

author = "Shiro Seki and Nobuyuki Serizawa and Katsuhito Takei and Kaoru Dokko and Masayoshi Watanabe",

note = "Funding Information: This work was partially supported by the Advanced Low Carbon Technology Research and Development Program (ALCA) from the Japan Science and Technology Agency (JST), Japan . Copyright: Copyright 2013 Elsevier B.V., All rights reserved.",

year = "2013",

doi = "10.1016/j.jpowsour.2013.06.005",

language = "English",

volume = "243",

pages = "323--327",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier",

}

TY - JOUR

T1 - Charge/discharge performances of glyme-lithium salt equimolar complex electrolyte for lithium secondary batteries

AU - Seki, Shiro

AU - Serizawa, Nobuyuki

AU - Takei, Katsuhito

AU - Dokko, Kaoru

AU - Watanabe, Masayoshi

N1 - Funding Information: This work was partially supported by the Advanced Low Carbon Technology Research and Development Program (ALCA) from the Japan Science and Technology Agency (JST), Japan . Copyright: Copyright 2013 Elsevier B.V., All rights reserved.

PY - 2013

Y1 - 2013

N2 - The electrochemical and battery performances of a CH3-O-(C 2H4O)3-CH3/LiN(SO2CF 3)2 1:1 equimolar complex electrolyte were evaluated using [Li metal|Li metal], [LiFePO4|Li metal], and [LiNi 1/3Mn1/3Co1/3O2|Li metal] cells. A relatively favorable surface was formed at the Li metal/electrolyte interface revealed by observation of the storage time dependence of the electrochemical impedance spectroscopy. A 3V-class [LiFePO4|Li metal] cell exhibited favorable capacity retention with little degradation after 600 cycles (2.5-4.0 V). A 4V-class [LiNi1/3Mn1/3Co1/3O 2|Li metal] cell also exhibited good capacity retention of approximately 60% of the initial discharge capacity after 400 cycles (2.7-4.2 V), while the capacity retention decreased markedly upon increasing the upper charge cutoff voltage above 4.4 V.

AB - The electrochemical and battery performances of a CH3-O-(C 2H4O)3-CH3/LiN(SO2CF 3)2 1:1 equimolar complex electrolyte were evaluated using [Li metal|Li metal], [LiFePO4|Li metal], and [LiNi 1/3Mn1/3Co1/3O2|Li metal] cells. A relatively favorable surface was formed at the Li metal/electrolyte interface revealed by observation of the storage time dependence of the electrochemical impedance spectroscopy. A 3V-class [LiFePO4|Li metal] cell exhibited favorable capacity retention with little degradation after 600 cycles (2.5-4.0 V). A 4V-class [LiNi1/3Mn1/3Co1/3O 2|Li metal] cell also exhibited good capacity retention of approximately 60% of the initial discharge capacity after 400 cycles (2.7-4.2 V), while the capacity retention decreased markedly upon increasing the upper charge cutoff voltage above 4.4 V.

KW - Charge/discharge

KW - Glyme

KW - Lithium salt

KW - Long cycle life

KW - Safety electrolyte

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M3 - Article

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VL - 243

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JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

Charge/discharge performances of glyme-lithium salt equimolar complex electrolyte for lithium secondary batteries

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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