Aqueous gel electrolyte based on cross-linked PVA matrix for EDLC

Kunihiko Nakayama; Mitsuo Shibutani; Masashi Ishikawa

doi:10.5796/electrochemistry.76.886

Aqueous gel electrolyte based on cross-linked PVA matrix for EDLC

Kunihiko Nakayama, Mitsuo Shibutani, Masashi Ishikawa

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

Abstract

Alkaline polymer gel electrolytes mainly with modified polyvinyl alcohol (PVA) have been prepared for an electric double layer capacitor (EDLC). Their electrochemical characteristics were evaluated by impedance spectroscopy and constant-current charge/discharge measurement. The prepared gel electrolyte film with KOH exhibits excellent flexibility and an ionic conductivity of about 7 × 10^-2 S cm^-1 at 298 K. The gel electrolyte EDLC shows comparable discharge capacitance to that for EDLC containing a conventional aqueous electrolyte. These results suggest that the gel electrolyte based on the modified PVA is promising material for use in EDLC.

Original language	English
Pages (from-to)	886-890
Number of pages	5
Journal	Electrochemistry
Volume	76
Issue number	12
DOIs	https://doi.org/10.5796/electrochemistry.76.886
Publication status	Published - Dec 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electrochemistry

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10.5796/electrochemistry.76.886

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title = "Aqueous gel electrolyte based on cross-linked PVA matrix for EDLC",

abstract = "Alkaline polymer gel electrolytes mainly with modified polyvinyl alcohol (PVA) have been prepared for an electric double layer capacitor (EDLC). Their electrochemical characteristics were evaluated by impedance spectroscopy and constant-current charge/discharge measurement. The prepared gel electrolyte film with KOH exhibits excellent flexibility and an ionic conductivity of about 7 × 10-2 S cm-1 at 298 K. The gel electrolyte EDLC shows comparable discharge capacitance to that for EDLC containing a conventional aqueous electrolyte. These results suggest that the gel electrolyte based on the modified PVA is promising material for use in EDLC.",

author = "Kunihiko Nakayama and Mitsuo Shibutani and Masashi Ishikawa",

year = "2008",

month = dec,

doi = "10.5796/electrochemistry.76.886",

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volume = "76",

pages = "886--890",

journal = "Electrochemistry",

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publisher = "The Electrochemical Society of Japan",

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AU - Nakayama, Kunihiko

AU - Shibutani, Mitsuo

AU - Ishikawa, Masashi

PY - 2008/12

Y1 - 2008/12

N2 - Alkaline polymer gel electrolytes mainly with modified polyvinyl alcohol (PVA) have been prepared for an electric double layer capacitor (EDLC). Their electrochemical characteristics were evaluated by impedance spectroscopy and constant-current charge/discharge measurement. The prepared gel electrolyte film with KOH exhibits excellent flexibility and an ionic conductivity of about 7 × 10-2 S cm-1 at 298 K. The gel electrolyte EDLC shows comparable discharge capacitance to that for EDLC containing a conventional aqueous electrolyte. These results suggest that the gel electrolyte based on the modified PVA is promising material for use in EDLC.

AB - Alkaline polymer gel electrolytes mainly with modified polyvinyl alcohol (PVA) have been prepared for an electric double layer capacitor (EDLC). Their electrochemical characteristics were evaluated by impedance spectroscopy and constant-current charge/discharge measurement. The prepared gel electrolyte film with KOH exhibits excellent flexibility and an ionic conductivity of about 7 × 10-2 S cm-1 at 298 K. The gel electrolyte EDLC shows comparable discharge capacitance to that for EDLC containing a conventional aqueous electrolyte. These results suggest that the gel electrolyte based on the modified PVA is promising material for use in EDLC.

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EP - 890

JO - Electrochemistry

JF - Electrochemistry

IS - 12

ER -

Aqueous gel electrolyte based on cross-linked PVA matrix for EDLC

Abstract

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