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Effect of electrode mass ratio on aging of activated carbon based supercapacitors utilizing organic electrolytes

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a b s t r a c t
The accelerated degradation of carbon based supercapacitors utilizing 1MEt4NBF4 in acetonitrile and in
propylene carbonate as electrolyte is investigated for a constant cell voltage of 3.5V as a function of the positive over total electrode mass ratio. The degradation rate of the supercapacitor using acetonitrile as a solvent can be decreased by increasing the mass of the positive electrode. With a mass ratio (positive electrode mass/total electrode mass) of 0.65 the degradation rate is minimum. For the capacitor utilizing propylene carbonate as a solvent a similar effect was observed. The degradation rate was smallest for a mass ratio above 0.5.
Keywords: Supercapacitor, Electrode mass, Degradation, Non-aqueous electrolyte, Activated carbon

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Informasi Detail

Judul Seri

Journal of Power Sources

No. Panggil

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Penerbit

: Elsevier B.V. All rights reserved., 2010

Deskripsi Fisik

Journal of Power Sources 196 (2011) 3114–3118

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA KARBON

Info Detail Spesifik

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Pernyataan Tanggungjawab

yuli/agus

Versi lain/terkait

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