JPH01103822A - Electrolytic capacitor - Google Patents
Electrolytic capacitorInfo
- Publication number
- JPH01103822A JPH01103822A JP17261388A JP17261388A JPH01103822A JP H01103822 A JPH01103822 A JP H01103822A JP 17261388 A JP17261388 A JP 17261388A JP 17261388 A JP17261388 A JP 17261388A JP H01103822 A JPH01103822 A JP H01103822A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic capacitor
- electrolyte
- lactones
- citraconic acid
- glycols
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 25
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003792 electrolyte Substances 0.000 claims abstract description 17
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims abstract description 12
- 150000002596 lactones Chemical class 0.000 claims abstract description 12
- 125000005270 trialkylamine group Chemical group 0.000 claims abstract description 12
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 claims abstract description 11
- 229940018557 citraconic acid Drugs 0.000 claims abstract description 11
- 150000002334 glycols Chemical class 0.000 claims abstract description 9
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims abstract description 4
- GSCLMSFRWBPUSK-UHFFFAOYSA-N beta-Butyrolactone Chemical compound CC1CC(=O)O1 GSCLMSFRWBPUSK-UHFFFAOYSA-N 0.000 claims abstract description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 14
- -1 ethylene glycol monoalkyl ether Chemical class 0.000 claims description 8
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 4
- OALYTRUKMRCXNH-UHFFFAOYSA-N 5-pentyloxolan-2-one Chemical compound CCCCCC1CCC(=O)O1 OALYTRUKMRCXNH-UHFFFAOYSA-N 0.000 claims description 4
- GHBSPIPJMLAMEP-UHFFFAOYSA-N 6-pentyloxan-2-one Chemical compound CCCCCC1CCCC(=O)O1 GHBSPIPJMLAMEP-UHFFFAOYSA-N 0.000 claims description 4
- VLSVVMPLPMNWBH-UHFFFAOYSA-N Dihydro-5-propyl-2(3H)-furanone Chemical compound CCCC1CCC(=O)O1 VLSVVMPLPMNWBH-UHFFFAOYSA-N 0.000 claims description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 4
- JBFHTYHTHYHCDJ-UHFFFAOYSA-N gamma-caprolactone Chemical compound CCC1CCC(=O)O1 JBFHTYHTHYHCDJ-UHFFFAOYSA-N 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical group CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 claims description 4
- PHXATPHONSXBIL-UHFFFAOYSA-N xi-gamma-Undecalactone Chemical compound CCCCCCCC1CCC(=O)O1 PHXATPHONSXBIL-UHFFFAOYSA-N 0.000 claims description 4
- PXRBWNLUQYZAAX-UHFFFAOYSA-N 6-Butyltetrahydro-2H-pyran-2-one Chemical compound CCCCC1CCCC(=O)O1 PXRBWNLUQYZAAX-UHFFFAOYSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- OALYTRUKMRCXNH-QMMMGPOBSA-N gamma-Nonalactone Natural products CCCCC[C@H]1CCC(=O)O1 OALYTRUKMRCXNH-QMMMGPOBSA-N 0.000 claims description 2
- PHXATPHONSXBIL-JTQLQIEISA-N gamma-Undecalactone Natural products CCCCCCC[C@H]1CCC(=O)O1 PHXATPHONSXBIL-JTQLQIEISA-N 0.000 claims description 2
- 229940020436 gamma-undecalactone Drugs 0.000 claims description 2
- GAEKPEKOJKCEMS-UHFFFAOYSA-N gamma-valerolactone Chemical compound CC1CCC(=O)O1 GAEKPEKOJKCEMS-UHFFFAOYSA-N 0.000 claims description 2
- 150000004676 glycans Chemical class 0.000 claims description 2
- 235000011187 glycerol Nutrition 0.000 claims description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 2
- 150000007522 mineralic acids Chemical class 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 229920001282 polysaccharide Polymers 0.000 claims description 2
- 239000005017 polysaccharide Substances 0.000 claims description 2
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 claims description 2
- 239000012047 saturated solution Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 239000008151 electrolyte solution Substances 0.000 description 7
- 239000011888 foil Substances 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- FLDCSPABIQBYKP-UHFFFAOYSA-N 5-chloro-1,2-dimethylbenzimidazole Chemical compound ClC1=CC=C2N(C)C(C)=NC2=C1 FLDCSPABIQBYKP-UHFFFAOYSA-N 0.000 description 2
- 239000001741 Ammonium adipate Substances 0.000 description 2
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 235000019293 ammonium adipate Nutrition 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- 229930195725 Mannitol Natural products 0.000 description 1
- LMLOLNSVKZNQSB-UHFFFAOYSA-N [K].C(C(C)=C/C(=O)O)(=O)O Chemical compound [K].C(C(C)=C/C(=O)O)(=O)O LMLOLNSVKZNQSB-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000008043 acidic salts Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 239000003985 ceramic capacitor Substances 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- GNVRJGIVDSQCOP-UHFFFAOYSA-N n-ethyl-n-methylethanamine Chemical compound CCN(C)CC GNVRJGIVDSQCOP-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003002 pH adjusting agent Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- CMPGARWFYBADJI-UHFFFAOYSA-L tungstic acid Chemical compound O[W](O)(=O)=O CMPGARWFYBADJI-UHFFFAOYSA-L 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
［従来の技術］
アルミニウム等の弁作用金属の箔をセパレータとともに
巻回してコンデンサ素子とした電解コンデンサは、一般
にコンデンサ素子に駆動用電解液を含浸し、アルミニウ
ム等の金属ケースや合成樹脂製のケースにコンデンサ素
子が収納され密閉した構造を有する。[Detailed Description of the Invention] [Prior Art] Electrolytic capacitors have a capacitor element formed by winding a foil of a valve metal such as aluminum together with a separator. It has a sealed structure in which the capacitor element is housed in a case or synthetic resin case.
従来、電解コンデンサの駆動用電解液としては、エチレ
ングリコール、等を主体とし、これに電解質として有機
酸のアンモニウム塩のように、金属からなる電極を侵食
しない塩を溶解した電解液が一般的に使用されている。Conventionally, the driving electrolyte for electrolytic capacitors has generally been made of ethylene glycol, etc., with a salt dissolved therein, such as an ammonium salt of an organic acid, which does not corrode metal electrodes as an electrolyte. It is used.
（特公昭５８−１３０１９号公報等参照）
そして、上記電解液は、電導度を上げるために水を１〜
３０％加えることが行なわれている。(Refer to Japanese Patent Publication No. 58-13019, etc.) In order to increase the conductivity, the electrolytic solution contains 1 to 10% of water.
It is being done to add 30%.
また、従来から比較的小さい比抵抗の駆動用電解液とし
て数種のものが知られている。例えば、アジピン酸アン
モニウムとエチレングリコールと水とからなる電解液が
ある。Furthermore, several types of driving electrolytes with relatively low specific resistance have been known. For example, there is an electrolytic solution consisting of ammonium adipate, ethylene glycol, and water.
さらにまた、不飽和鎖状ジカルボン酸の第四級アンモニ
ウムを用いる電解コンデンサも知られている。Furthermore, electrolytic capacitors using quaternary ammonium of unsaturated chain dicarboxylic acids are also known.
又、シトラコン酸の酸性塩をＮ−メチルホルムアミドに
溶解した電解液も提案されている（特公昭５１−４６２
５２号公報参照）。Furthermore, an electrolytic solution in which an acidic salt of citraconic acid is dissolved in N-methylformamide has also been proposed (Japanese Patent Publication No. 51-462).
(See Publication No. 52).
［発明の解決しようとする課題］
しかしながら、前記特公昭５８−１３０１９号に記載の
電解液は、陰極箔の腐食や解離したアンモニウム（ＮＨ
３）の蒸散のため高温での特性劣化、特に損失（ｔａｎ
δ）の変化が太き（、又、高温無負荷筒で放置した後の
漏れ電流も大きいという欠点があった。このため、電解
コンデンサは、他の特性が優れているにもかかわらず、
高周波特性が、セラミックコンデンサ等の他のコンデン
サに比べ劣っていた。[Problems to be Solved by the Invention] However, the electrolytic solution described in Japanese Patent Publication No. 58-13019 does not cause corrosion of the cathode foil or dissociated ammonium (NH
3) Characteristics deteriorate at high temperatures due to transpiration, especially loss (tan).
δ) has a large change (in addition, the leakage current after being left in a high-temperature, unloaded tube is also large. For this reason, electrolytic capacitors, despite having excellent other characteristics,
Its high frequency characteristics were inferior to other capacitors such as ceramic capacitors.
又、アジピン酸アンモニウム等の電解液は、電導度は高
いものの、この電解液では定格１００■の製品を製作で
きないという欠点があった。Further, although electrolytic solutions such as ammonium adipate have high conductivity, they have the disadvantage that products with a rating of 100 .mu.m cannot be manufactured using this electrolytic solution.
（特開昭６２−２７６８１５号公報参照）。(Refer to Japanese Patent Application Laid-Open No. 62-276815).
更に、特公昭５１−４６２５２号にはシトラコン酸の酸
性塩としては、シトラコン酸カリウムが示されているに
過ぎず、これは耐久性に乏しくアルミニウム箔が腐食を
受けやすい欠点を有している。Further, Japanese Patent Publication No. 51-46252 only discloses potassium citraconic acid as an acid salt of citraconic acid, which has the drawback of poor durability and the tendency of aluminum foil to corrode.
［課題を解決するための手段］
本発明は、高温安定性に優れ、又比抵抗が小さい、すな
わち電導度が大きい駆動用電解液を使用することにより
、低インピーダンス化し、高周波特性の優れた定格１０
０Ｖの電解コンデンサを提供することを目的とする。[Means for Solving the Problems] The present invention uses a driving electrolyte that has excellent high-temperature stability and low specific resistance, that is, high conductivity, thereby achieving low impedance and a rating with excellent high frequency characteristics. 10
The purpose is to provide a 0V electrolytic capacitor.
即ち本発明は、シトラコン酸とトリアルキルアミンとの
反応生成物を、ラクトン類およびグリコール類から選ば
れた少なくとも一種の溶媒に溶解した駆動用電解液を用
いた電解コンデンサを提供するにある。That is, the present invention provides an electrolytic capacitor using a driving electrolyte in which a reaction product of citraconic acid and trialkylamine is dissolved in at least one solvent selected from lactones and glycols.
本発明に用いられるトリアルキルアミンは、トリメチル
アミン、トリエチルアミン、トリプロピルアミン、ジエ
チルメチルアミン等が挙げられる。そしてこれらのうち
、トリエチルアミンは高い電導度が得られるので特に好
ましい。Examples of the trialkylamine used in the present invention include trimethylamine, triethylamine, tripropylamine, diethylmethylamine, and the like. Among these, triethylamine is particularly preferred since it provides high conductivity.
又、ラクトン類としてはβ−ブチロラクトン、γ−ブチ
ロラクトン、γ−バレロラクトン、δ−バレロラクトン
、γ−カプロラクトン、ε−カプロラクトン、γ−ヘプ
タラクトン、γ−ヒドロキシ−ｎ−カプリル酸ラクトン
、γ−ノナラクトン、δ−ノナラクトン、δ−デカラク
トン、γ−ウンデカラクトンなどが挙げられる。In addition, lactones include β-butyrolactone, γ-butyrolactone, γ-valerolactone, δ-valerolactone, γ-caprolactone, ε-caprolactone, γ-heptalactone, γ-hydroxy-n-caprylic acid lactone, and γ-nonalactone. , δ-nonalactone, δ-decalactone, γ-undecalactone, and the like.
又、グリコール類としては、エチレングリコール、エチ
レングリコールモノアルキルエーテル、エチレングリコ
ールジアルキルエーテル、プロピレングリコール、ジエ
チレングリコール、ジエチレングリコールモノアルキル
エーテル、ジエチレングリコールジアルキルエーテル、
ポリエチレングリコール、グリセリン等が挙げられる。In addition, as glycols, ethylene glycol, ethylene glycol monoalkyl ether, ethylene glycol dialkyl ether, propylene glycol, diethylene glycol, diethylene glycol monoalkyl ether, diethylene glycol dialkyl ether,
Examples include polyethylene glycol and glycerin.
これらラクトン類やグリコール類等の溶媒中におけるシ
トラコン酸のトリアルキルアミン塩の含有量は、種々に
選択し得るが、飽和溶液の状態が最も比抵抗が小さい。The content of the trialkylamine salt of citraconic acid in these solvents such as lactones and glycols can be selected variously, but a saturated solution has the lowest specific resistance.
シトラコン酸のトリアルキルアミン塩の含有量（濃度）
は、電解液中０，５〜８０重量％、好ましくは１〜５０
重量％である。Content (concentration) of trialkylamine salt of citraconic acid
is 0.5 to 80% by weight in the electrolyte, preferably 1 to 50% by weight.
Weight%.
ラクトン類やグリコール類は、これらを夫々単独で用い
得るが、ラクトン類とグリコール類とを混合して用いる
方が高い電気型導度が得られる。これらの混合割合は、
グリコール順／ラクトン類＝８０／２０〜５／９５、好
ましくは４０／ ６０〜２０／ ８０が採用される。Although lactones and glycols can be used alone, higher electrical conductivity can be obtained by using a mixture of lactones and glycols. The mixing ratio of these is
The order of glycol/lactones is 80/20 to 5/95, preferably 40/60 to 20/80.
更に本発明においては、火花電圧を向上させる為に、硼
酸、燐酸、タングステン酸、ポリ酸等の無機酸及びその
塩やマンニット、ソルビット等の多糖類を０，１〜１０
ｗｔ％、好ましくは０．１〜５ｗｔ％添加することがで
きる。Furthermore, in the present invention, in order to improve the spark voltage, inorganic acids such as boric acid, phosphoric acid, tungstic acid, and polyacids, and their salts, and polysaccharides such as mannitol and sorbitol are added in an amount of 0.1 to 10%.
It can be added in wt%, preferably 0.1 to 5 wt%.
電解液のｐＨは必要に応じて所望のｐＨ調整剤を添加す
ることにより４〜１２、好ましくは５〜７に調整される
。The pH of the electrolytic solution is adjusted to 4 to 12, preferably 5 to 7, by adding a desired pH adjuster as necessary.
又、水分の存在は、アルミニウム箔の腐食原因となるの
で出来るだけ存在しない方が望ましいが、５重量％以下
であれば特に不都合は生じない。Further, the presence of moisture causes corrosion of the aluminum foil, so it is desirable to avoid it as much as possible, but no particular disadvantage will occur if the moisture content is 5% by weight or less.
本発明による電解コンデンサは、種々の態様のコンデン
サが含まれる。本発明による電解コンデンサの典型例と
しては、紙等のセパレータで分離されたアルミニウム箔
陽極と、アルミニウム箔陰極とを用い、これらを円筒状
に巻いたものをコンデンサ素子とし、この素子に駆動用
電解液が含浸される。駆動用電解液の含浸量は、セパレ
ータに対し、５０〜３００重量％が採用される。The electrolytic capacitor according to the present invention includes various types of capacitors. A typical example of an electrolytic capacitor according to the present invention uses an aluminum foil anode and an aluminum foil cathode separated by a separator such as paper, which are wound into a cylindrical shape to form a capacitor element. impregnated with liquid. The impregnation amount of the driving electrolyte is 50 to 300% by weight based on the separator.
駆動用電解液が含浸された素子は、耐食性を有するとこ
ろの金属や合成樹脂等のケースに収納され、密封される
。The element impregnated with the driving electrolyte is housed in a case made of corrosion-resistant metal, synthetic resin, or the like, and sealed.
［実施例及び比較例］
表にシトラコン酸やこれのトリアルキルアミン塩を用い
た例を、比較例と共に示す。[Examples and Comparative Examples] Examples using citraconic acid or its trialkylamine salt are shown in the table together with comparative examples.
種々調整した電解液が用いられ、アルミニウム箔を電極
とする電解コンデンサ（１００Ｖ−６８０μＦ）が夫々
２０個づつ製作された。Using variously prepared electrolytes, 20 electrolytic capacitors (100V-680μF) each having aluminum foil as an electrode were manufactured.
これら電解コンデンサは、トリクレンを用い、５０℃に
て１５分間超音波洗浄された。その後これら電解コンデ
ンサは、１０５℃において定電圧印加試験が行なわれた
。その結果であるｔａｎδの変化が比較例とともに表に
示された。These electrolytic capacitors were ultrasonically cleaned at 50° C. for 15 minutes using Triclean. These electrolytic capacitors were then subjected to a constant voltage application test at 105°C. The resulting changes in tan δ are shown in the table along with comparative examples.
ｔａｎδの値はすべて２０個の平均値である。All tan δ values are average values of 20 values.
Claims (7)
を、ラクトン類及びグリコール類から選ばれた少なくと
も一種の溶媒に溶解した駆動用電解液を用いた電解コン
デンサ。1. An electrolytic capacitor using a driving electrolyte in which a reaction product of citraconic acid and trialkylamine is dissolved in at least one solvent selected from lactones and glycols.
ルアミンである請求項１又は２の電解コンデンサ2. The electrolytic capacitor according to claim 1 or 2, wherein the trialkylamine is trimethylamine or triethylamine.
トン、γ−バレロラクトン、δ−バレロラクトン、γ−
カプロラクトン、ε−カプロラクトン、γ−ヘプタラク
トン、γ−ヒドロキシ−ｎ−カプリル酸ラクトン、γ−
ノナラクトン、δ−ノナラクトン、δ−デカラクトン、
γ−ウンデカラクトンである請求項１の電解コンデンサ
。3. Lactones include β-butyrolactone, γ-butyrolactone, γ-valerolactone, δ-valerolactone, γ-
Caprolactone, ε-caprolactone, γ-heptalactone, γ-hydroxy-n-caprylic acid lactone, γ-
nonalactone, δ-nonalactone, δ-decalactone,
The electrolytic capacitor of claim 1, which is γ-undecalactone.
コールモノアルキルエーテル、エチレングリコールジア
ルキルエーテル、プロピレングリコール、ジエチレング
リコール、ジエチレングリコールモノアルキルエーテル
、ジエチレングリコールジアルキルエーテル、ポリエチ
レングリコール、グリセリンである請求項１の電解コン
デンサ。4. 2. The electrolytic capacitor according to claim 1, wherein the glycol is ethylene glycol, ethylene glycol monoalkyl ether, ethylene glycol dialkyl ether, propylene glycol, diethylene glycol, diethylene glycol monoalkyl ether, diethylene glycol dialkyl ether, polyethylene glycol, or glycerin.
１０重量％含有する請求項１の電解コンデンサ。5. Driving electrolyte, inorganic acids and their salts, polysaccharides from 0.1 to
The electrolytic capacitor according to claim 1, containing 10% by weight.
コンデンサ。6. 2. The electrolytic capacitor according to claim 1, wherein the driving electrolyte has a pH of 5 to 7.
％迄である請求項１の電解コンデンサ。7. 2. The electrolytic capacitor according to claim 1, wherein the driving electrolyte has an allowable moisture content of up to 5% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17261388A JP2651839B2 (en) | 1987-07-17 | 1988-07-13 | Electrolytic capacitor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17721287 | 1987-07-17 | ||
| JP62-177212 | 1987-07-17 | ||
| JP17261388A JP2651839B2 (en) | 1987-07-17 | 1988-07-13 | Electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01103822A true JPH01103822A (en) | 1989-04-20 |
| JP2651839B2 JP2651839B2 (en) | 1997-09-10 |
Family
ID=26494915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17261388A Expired - Fee Related JP2651839B2 (en) | 1987-07-17 | 1988-07-13 | Electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2651839B2 (en) |
-
1988
- 1988-07-13 JP JP17261388A patent/JP2651839B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2651839B2 (en) | 1997-09-10 |
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