All-solid state electric double layer capacitor using polymer electrolyte and isotropic high density graphite electrodes

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Abstract

Isotropic high density graphite (HDG) was used as the polarizable electrode of electric double layer capacitors (EDLC) with a solid electrolyte consisting of PEO/LiClO4([EO]/[Li+] = 8:1) at 80 °C or with a gel electrolyte consisting of PEO/ PC/LiClO4 ([EO]/[PC]/|Li+] = 8:8:1) at room temperature. The all-solid state capacitor with HDG electrodes works satisfactorily as a EDLC with a relatively high capacitance, as well as the EDLC with gel electrolyte PEO/PC/LiClO4. These EDLCs with solid polymer electrolyte PEO/LiClO4 and gel electrolyte PEO/PC/LiClO4 show good charge/discharge behavior when charged to 1.5 V at 80 °C and 20 °C, respectively.

Original languageEnglish
Pages (from-to)625-626
Number of pages2
JournalChemistry Letters
Issue number8
DOIs
Publication statusPublished - 1996 Jan 1

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ASJC Scopus subject areas

  • Chemistry(all)

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