Methyl difluoroacetate inhibits corrosion of aluminum cathode current collector for lithium ion cells

Tetsuya Kawamura; Takaaki Tanaka; Minato Egashira; Izumi Watanabe; Shigeto Okada; Jun Ichi Yamaki

doi:10.1149/1.1993367

Methyl difluoroacetate inhibits corrosion of aluminum cathode current collector for lithium ion cells

Tetsuya Kawamura, Takaaki Tanaka, Minato Egashira, Izumi Watanabe, Shigeto Okada, Jun Ichi Yamaki

先端素子材料部門

研究成果: ジャーナルへの寄稿 › 学術誌 › 査読

36 被引用数 (Scopus)

抄録

Cathode current collectors made of aluminum are corroded by LiN(SO ₂CF₃)₂/ethylene carbonate + dimethyl carbonate (1:1 in volume ratio) electrolyte above 3.7 V. Therefore, the electrolyte cannot be used for 4 V lithium rechargeable batteries. By contrast, LiN(SO ₂CF₃)₂/methyl difluoroacetate (CHF ₂COOCH₃, MFA) electrolyte showed good inhibition of aluminum corrosion, and a Li/LiCoO₂ cell with an aluminum cathode current collector exhibited good cycle performance when the LiN(SO ₂CF₃)₂/MFA electrolyte was used. X-ray photoelectron spectroscopy of the aluminum surface treated by LiN(SO ₂CF₃)₂MFA electrolyte showed that the inhibition of corrosion derives from a passivation film made of an organic compound on the aluminum surface.

本文言語	英語
ページ（範囲）	A459-A463
ジャーナル	Electrochemical and Solid-State Letters
巻	8
号	9
DOI	https://doi.org/10.1149/1.1993367
出版ステータス	出版済み - 2005

!!!All Science Journal Classification (ASJC) codes

化学工学（全般）
材料科学（全般）
物理化学および理論化学
電気化学
電子工学および電気工学

文献へのアクセス

10.1149/1.1993367

他のファイルとリンク

引用スタイル

@article{a4ef1ca994c2428ba03966764bdcb1d8,

title = "Methyl difluoroacetate inhibits corrosion of aluminum cathode current collector for lithium ion cells",

abstract = "Cathode current collectors made of aluminum are corroded by LiN(SO 2CF3)2/ethylene carbonate + dimethyl carbonate (1:1 in volume ratio) electrolyte above 3.7 V. Therefore, the electrolyte cannot be used for 4 V lithium rechargeable batteries. By contrast, LiN(SO 2CF3)2/methyl difluoroacetate (CHF 2COOCH3, MFA) electrolyte showed good inhibition of aluminum corrosion, and a Li/LiCoO2 cell with an aluminum cathode current collector exhibited good cycle performance when the LiN(SO 2CF3)2/MFA electrolyte was used. X-ray photoelectron spectroscopy of the aluminum surface treated by LiN(SO 2CF3)2MFA electrolyte showed that the inhibition of corrosion derives from a passivation film made of an organic compound on the aluminum surface.",

author = "Tetsuya Kawamura and Takaaki Tanaka and Minato Egashira and Izumi Watanabe and Shigeto Okada and Yamaki, {Jun Ichi}",

year = "2005",

doi = "10.1149/1.1993367",

language = "English",

volume = "8",

pages = "A459--A463",

journal = "Electrochemical and Solid-State Letters",

issn = "1099-0062",

publisher = "Electrochemical Society, Inc.",

number = "9",

}

TY - JOUR

T1 - Methyl difluoroacetate inhibits corrosion of aluminum cathode current collector for lithium ion cells

AU - Kawamura, Tetsuya

AU - Tanaka, Takaaki

AU - Egashira, Minato

AU - Watanabe, Izumi

AU - Okada, Shigeto

AU - Yamaki, Jun Ichi

PY - 2005

Y1 - 2005

N2 - Cathode current collectors made of aluminum are corroded by LiN(SO 2CF3)2/ethylene carbonate + dimethyl carbonate (1:1 in volume ratio) electrolyte above 3.7 V. Therefore, the electrolyte cannot be used for 4 V lithium rechargeable batteries. By contrast, LiN(SO 2CF3)2/methyl difluoroacetate (CHF 2COOCH3, MFA) electrolyte showed good inhibition of aluminum corrosion, and a Li/LiCoO2 cell with an aluminum cathode current collector exhibited good cycle performance when the LiN(SO 2CF3)2/MFA electrolyte was used. X-ray photoelectron spectroscopy of the aluminum surface treated by LiN(SO 2CF3)2MFA electrolyte showed that the inhibition of corrosion derives from a passivation film made of an organic compound on the aluminum surface.

AB - Cathode current collectors made of aluminum are corroded by LiN(SO 2CF3)2/ethylene carbonate + dimethyl carbonate (1:1 in volume ratio) electrolyte above 3.7 V. Therefore, the electrolyte cannot be used for 4 V lithium rechargeable batteries. By contrast, LiN(SO 2CF3)2/methyl difluoroacetate (CHF 2COOCH3, MFA) electrolyte showed good inhibition of aluminum corrosion, and a Li/LiCoO2 cell with an aluminum cathode current collector exhibited good cycle performance when the LiN(SO 2CF3)2/MFA electrolyte was used. X-ray photoelectron spectroscopy of the aluminum surface treated by LiN(SO 2CF3)2MFA electrolyte showed that the inhibition of corrosion derives from a passivation film made of an organic compound on the aluminum surface.

UR - http://www.scopus.com/inward/record.url?scp=25144518741&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=25144518741&partnerID=8YFLogxK

U2 - 10.1149/1.1993367

DO - 10.1149/1.1993367

M3 - Article

AN - SCOPUS:25144518741

VL - 8

SP - A459-A463

JO - Electrochemical and Solid-State Letters

JF - Electrochemical and Solid-State Letters

SN - 1099-0062

IS - 9

ER -

Methyl difluoroacetate inhibits corrosion of aluminum cathode current collector for lithium ion cells

抄録

!!!All Science Journal Classification (ASJC) codes

文献へのアクセス

他のファイルとリンク

フィンガープリント

引用スタイル