JP4271528B2 - 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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- JP4271528B2 JP4271528B2 JP2003280162A JP2003280162A JP4271528B2 JP 4271528 B2 JP4271528 B2 JP 4271528B2 JP 2003280162 A JP2003280162 A JP 2003280162A JP 2003280162 A JP2003280162 A JP 2003280162A JP 4271528 B2 JP4271528 B2 JP 4271528B2
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- acid
- electrolytic solution
- electrolytic
- electrolytic capacitor
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Description
すなわち、エチレングリコールを主溶媒とし、有機カルボン酸またはその塩の1種以上と、ホウ酸またはそのアンモニウム塩とを溶解した電解コンデンサの駆動用電解液において、以下の化学式で示されるパラオキシ安息香酸イソプロピルを0.5〜2.0wt%溶解したことを特徴とする電解コンデンサの駆動用電解液である。
上記のことから、本発明によるパラオキシ安息香酸イソプロピルを溶解した電解液は、比抵抗の上昇を抑制しながら、電解液の耐電圧の向上を図ることができる。
表1において、マンニトール、パラオキシ安息香酸イソプロピルが同量のもの、すなわち、1.0wt%の実施例3と従来例2、2.0wt%の実施例6と従来例3で比較すると、実施例の方が比抵抗が小さく、火花発生電圧(耐電圧)が上昇していることが分かる。ただし、溶解量が0.5wt%未満では耐電圧の上昇効果は十分でなく(実施例1)、また、溶解量が2.0wt%を超えると比抵抗上昇が著しく(実施例7)、低比抵抗用途に不向きとなることが分かる。よって、パラオキシ安息香酸イソプロピルの添加量は、0.5〜2.0wt%の範囲が好ましい。
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JP2003280162A JP4271528B2 (ja) | 2003-07-25 | 2003-07-25 | 電解コンデンサの駆動用電解液 |
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JP2003280162A JP4271528B2 (ja) | 2003-07-25 | 2003-07-25 | 電解コンデンサの駆動用電解液 |
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JP2005045177A JP2005045177A (ja) | 2005-02-17 |
JP4271528B2 true JP4271528B2 (ja) | 2009-06-03 |
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JP2003280162A Expired - Fee Related JP4271528B2 (ja) | 2003-07-25 | 2003-07-25 | 電解コンデンサの駆動用電解液 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4641455B2 (ja) * | 2005-06-17 | 2011-03-02 | ニチコン株式会社 | 電解コンデンサの駆動用電解液 |
JP4637662B2 (ja) * | 2005-06-29 | 2011-02-23 | ニチコン株式会社 | 電解コンデンサの駆動用電解液 |
JP4668766B2 (ja) * | 2005-10-31 | 2011-04-13 | ニチコン株式会社 | 電解コンデンサの駆動用電解液 |
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2003
- 2003-07-25 JP JP2003280162A patent/JP4271528B2/ja not_active Expired - Fee Related
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