Improvement of the Stability of LiPF_6 Electrolytes toward Water by the Addition of LiCl

Tetsuya Kawamura; Takaaki Sonoda; Shigeto Okada; Jun-ichi Yamaki

doi:10.5796/electrochemistry.71.1139

Improvement of the Stability of LiPF_6 Electrolytes toward Water by the Addition of LiCl

Tetsuya Kawamura, Takaaki Sonoda, 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

抄録

It is known that LiPF6 electrolytes react with water. In this study, LiCl, LiF, LiBr and LiI were added to 1 M LiPF6/EC + DEC electrolyte with about 5000 ppm water to inhibit the reaction of LiPF6. When 0.1 M LiCl was added, the LiPF6 electrolyte did not react with the water for 50 hours. Differential scanning calorimetry (DSC) measurement indicated that the amount of exothermic heat at 265°C, which is related to a reaction with LiPF6, did not change at all for 48 hours when LiCl was added. Based on this result, we confirmed that LiPF6 salt did not react with water when LiCl was added.

本文言語	英語
ページ（範囲）	1139-1141
ページ数	3
ジャーナル	Electrochemistry
巻	71
号	12
DOI	https://doi.org/10.5796/electrochemistry.71.1139
出版ステータス	出版済み - 12月 5 2003

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10.5796/electrochemistry.71.1139

https://doi.org/10.5796/electrochemistry.71.1139

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title = "Improvement of the Stability of LiPF_6 Electrolytes toward Water by the Addition of LiCl",

abstract = "It is known that LiPF6 electrolytes react with water. In this study, LiCl, LiF, LiBr and LiI were added to 1 M LiPF6/EC + DEC electrolyte with about 5000 ppm water to inhibit the reaction of LiPF6. When 0.1 M LiCl was added, the LiPF6 electrolyte did not react with the water for 50 hours. Differential scanning calorimetry (DSC) measurement indicated that the amount of exothermic heat at 265°C, which is related to a reaction with LiPF6, did not change at all for 48 hours when LiCl was added. Based on this result, we confirmed that LiPF6 salt did not react with water when LiCl was added.",

author = "Tetsuya Kawamura and Takaaki Sonoda and Shigeto Okada and Jun-ichi Yamaki",

year = "2003",

month = dec,

day = "5",

doi = "10.5796/electrochemistry.71.1139",

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T1 - Improvement of the Stability of LiPF_6 Electrolytes toward Water by the Addition of LiCl

AU - Kawamura, Tetsuya

AU - Sonoda, Takaaki

AU - Okada, Shigeto

AU - Yamaki, Jun-ichi

PY - 2003/12/5

Y1 - 2003/12/5

N2 - It is known that LiPF6 electrolytes react with water. In this study, LiCl, LiF, LiBr and LiI were added to 1 M LiPF6/EC + DEC electrolyte with about 5000 ppm water to inhibit the reaction of LiPF6. When 0.1 M LiCl was added, the LiPF6 electrolyte did not react with the water for 50 hours. Differential scanning calorimetry (DSC) measurement indicated that the amount of exothermic heat at 265°C, which is related to a reaction with LiPF6, did not change at all for 48 hours when LiCl was added. Based on this result, we confirmed that LiPF6 salt did not react with water when LiCl was added.

AB - It is known that LiPF6 electrolytes react with water. In this study, LiCl, LiF, LiBr and LiI were added to 1 M LiPF6/EC + DEC electrolyte with about 5000 ppm water to inhibit the reaction of LiPF6. When 0.1 M LiCl was added, the LiPF6 electrolyte did not react with the water for 50 hours. Differential scanning calorimetry (DSC) measurement indicated that the amount of exothermic heat at 265°C, which is related to a reaction with LiPF6, did not change at all for 48 hours when LiCl was added. Based on this result, we confirmed that LiPF6 salt did not react with water when LiCl was added.

U2 - 10.5796/electrochemistry.71.1139

DO - 10.5796/electrochemistry.71.1139

M3 - Article

VL - 71

SP - 1139

EP - 1141

JO - Electrochemistry

JF - Electrochemistry

SN - 1344-3542

IS - 12

ER -

Improvement of the Stability of LiPF_6 Electrolytes toward Water by the Addition of LiCl

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