JP4441400B2 - 電解コンデンサの駆動用電解液 - Google Patents
電解コンデンサの駆動用電解液 Download PDFInfo
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- JP4441400B2 JP4441400B2 JP2004379898A JP2004379898A JP4441400B2 JP 4441400 B2 JP4441400 B2 JP 4441400B2 JP 2004379898 A JP2004379898 A JP 2004379898A JP 2004379898 A JP2004379898 A JP 2004379898A JP 4441400 B2 JP4441400 B2 JP 4441400B2
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- electrolytic solution
- methyl ketone
- electrolytic
- polyvinyl methyl
- driving
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Description
これに対して、平均分子量が1000以上のポリエチレングリコールは、耐電圧向上効果は高いが、エチレングリコールを主成分とする溶媒に対する溶解性が低いため、電解液の調製に長時間を要するという問題点がある。
ここで、ポリビニルメチルケトンの平均分子量は、800〜1700であることが好ましく、ポリビニルメチルケトンの配合量は、電解液全体に対して0.1〜5.0重量%であることが好ましい。
なお、本発明による電解液には、火花発生電圧安定化のために、マンニトール、ソルビトール等の多価アルコールや、リン酸またはその塩等の無機酸類を溶解してもよい。
なお、表1中、「耐圧向上剤:PEG」はポリエチレングリコールを表し、「耐圧向上剤:PVA」はポリビニルアルコールを表し、「耐圧向上剤:PVMK」はポリビニルメチルケトンを表す。
また、表1中、「#」に続く数字は、耐圧向上剤として用いた成分の平均分子量を表す。
また、ポリビニルメチルケトンは、ポリエチレングリコールやポリビニルアルコールと比較して電解液に対する溶解性が高いので、より多量に配合することができ、十分なレベルにまで耐電圧を高めることができ、また、電解液に対する溶解性が高いことから、実施例1〜14に係る電解液の調製を比較的短時間で行えるという利点がある。
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JP2004379898A JP4441400B2 (ja) | 2004-12-28 | 2004-12-28 | 電解コンデンサの駆動用電解液 |
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JP2004379898A JP4441400B2 (ja) | 2004-12-28 | 2004-12-28 | 電解コンデンサの駆動用電解液 |
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JP2006186198A JP2006186198A (ja) | 2006-07-13 |
JP4441400B2 true JP4441400B2 (ja) | 2010-03-31 |
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JP2004379898A Expired - Fee Related JP4441400B2 (ja) | 2004-12-28 | 2004-12-28 | 電解コンデンサの駆動用電解液 |
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KR101100539B1 (ko) * | 2006-09-11 | 2011-12-29 | 아사히 가세이 가부시키가이샤 | 신규의 고분자 전해질 및 전기 화학 소자 |
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