JPH04171913A - Electrolyte for driving electrolytic capacitor and electrolytic capacitor using same - Google Patents
Electrolyte for driving electrolytic capacitor and electrolytic capacitor using sameInfo
- Publication number
- JPH04171913A JPH04171913A JP2300518A JP30051890A JPH04171913A JP H04171913 A JPH04171913 A JP H04171913A JP 2300518 A JP2300518 A JP 2300518A JP 30051890 A JP30051890 A JP 30051890A JP H04171913 A JPH04171913 A JP H04171913A
- Authority
- JP
- Japan
- Prior art keywords
- polyglycerin
- electrolytic capacitor
- polyoxyalkylene ester
- electrolytic solution
- driving
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims description 19
- 239000003792 electrolyte Substances 0.000 title abstract description 9
- 150000002148 esters Chemical class 0.000 claims abstract description 19
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical group OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003960 organic solvent Substances 0.000 claims abstract description 6
- 239000008151 electrolyte solution Substances 0.000 claims description 19
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 6
- 239000002904 solvent Substances 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 4
- 229920001577 copolymer Polymers 0.000 abstract description 2
- 238000006116 polymerization reaction Methods 0.000 abstract description 2
- 229920001451 polypropylene glycol Polymers 0.000 abstract description 2
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 238000011068 loading method Methods 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920001223 polyethylene glycol Polymers 0.000 description 5
- 229920000223 polyglycerol Polymers 0.000 description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 4
- 239000002202 Polyethylene glycol Substances 0.000 description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 4
- 239000004327 boric acid Substances 0.000 description 4
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 4
- -1 aromatic carboxylic acids Chemical class 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OWCLRJQYKBAMOL-UHFFFAOYSA-N 2-butyloctanedioic acid Chemical compound CCCCC(C(O)=O)CCCCCC(O)=O OWCLRJQYKBAMOL-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 239000004705 High-molecular-weight polyethylene Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- ORKKMKUDEPWHTG-UHFFFAOYSA-N azane;nonanedioic acid Chemical compound [NH4+].[NH4+].[O-]C(=O)CCCCCCCC([O-])=O ORKKMKUDEPWHTG-UHFFFAOYSA-N 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Polyethers (AREA)
- Secondary Cells (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、電解コンデンサに係わり、特に火花発生電圧
の高い電解コンデンサ駆動用電解液およびこれを用いた
電解コンデンサに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to electrolytic capacitors, and particularly to an electrolytic solution for driving an electrolytic capacitor with a high spark generation voltage and an electrolytic capacitor using the same.
（従来の技術）
従来、中高圧用の電解コンデンサ駆動用電解液（以下電
解液と称する）としては、エチレングリコールを主体と
した溶媒にホウ酸とアンモニア水、またはホウ酸のアン
モニウム塩等を溶解したものが使われてきたが、最近で
はブチルオクタンニ酸、アゼライン酸、アジピン酸等の
脂肪族カルボン酸、また安息香酸、フタル酸等の芳香族
カルボン酸ないしはその塩も使用されるようになってき
ている。(Prior art) Conventionally, an electrolytic solution (hereinafter referred to as electrolytic solution) for driving medium-high voltage electrolytic capacitors has been prepared by dissolving boric acid and aqueous ammonia, or an ammonium salt of boric acid in a solvent mainly composed of ethylene glycol. However, recently aliphatic carboxylic acids such as butyloctanedioic acid, azelaic acid, and adipic acid, and aromatic carboxylic acids and their salts such as benzoic acid and phthalic acid have also been used. It's coming.
また、低圧高信頼性用の電解液としてはＴ−ブチロラク
トンを主体とした溶媒にマレイン酸やフタル酸等のカル
ボン酸またはそれらのアミン酸や４級アンモニウム塩を
溶解したものが開発されてきた。Furthermore, electrolytes for low pressure and high reliability have been developed in which carboxylic acids such as maleic acid and phthalic acid, or their amino acids and quaternary ammonium salts are dissolved in a solvent mainly composed of T-butyrolactone.
（発明が解決しようとする課Ｂ）
ホウ酸系電解液は火花発生電圧を高くすることが可能で
あるが、粘度や比抵抗が高くなってしまうとともに１０
５℃といった高温で使用するとエステル化が起こり多量
の水が形成されるため、電極箔と反応を起こし、弁作動
等の不具合が生じるので高温での使用が困難であった。(Problem B to be solved by the invention) It is possible to increase the spark generation voltage with a boric acid electrolyte, but the viscosity and specific resistance increase, and the
When used at a high temperature such as 5° C., esterification occurs and a large amount of water is formed, which reacts with the electrode foil and causes problems such as valve operation, making it difficult to use at high temperatures.
一方、有機酸系電解液は、適度な粘度で比抵抗が低く１
０５℃の高温でも使用可能な電解液を得ることができる
ものの、火花発生電圧が低く、また溶質を減じて火花発
生電圧を高めても耐腐食性が低下するため４５０ＷＶ以
上の高圧で使用することは困難であった。On the other hand, organic acid-based electrolytes have moderate viscosity and low resistivity.
Although it is possible to obtain an electrolytic solution that can be used at a high temperature of 0.5°C, the spark generation voltage is low, and even if the spark generation voltage is increased by reducing the solute, the corrosion resistance will decrease, so it should be used at high pressures of 450 WV or higher. was difficult.
また低圧のＴ−ブチロラクトン系電解液においては、火
花発生電圧をあげることがむずかしく、１００ＷＶ以上
に使用することができなかった。Furthermore, in the case of a low-pressure T-butyrolactone-based electrolytic solution, it is difficult to increase the spark generation voltage, and it has not been possible to use it above 100 WV.
上記問題点を改善するため、特開昭６２−２６８１２１
号にポリエチレングリコールを添加し火花発生電圧を上
昇させることが提案されているが今だ十分とは言えず、
またポリエチレングリコールは結晶性が高いため高分子
量のものを多量使用すると低温で分離し、製造上、また
低温特性上問題があった。In order to improve the above problems, JP-A-62-268121
It has been proposed to increase the spark generation voltage by adding polyethylene glycol to the fuel, but this is not yet sufficient.
Furthermore, since polyethylene glycol has high crystallinity, if a large amount of high molecular weight polyethylene glycol is used, it will separate at low temperature, which poses problems in terms of production and low temperature characteristics.
本発明は上述の問題点に鑑みてなされたものであり、火
花発生電圧を高め高温での信頼性を向上させた電解コン
デンサ駆動用電解液およびこれを用いた電解コンデンサ
を提供することを目的とする。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an electrolyte for driving an electrolytic capacitor that increases spark generation voltage and improves reliability at high temperatures, and an electrolytic capacitor using the same. do.
（課題を解決するための手段）
上記目的による本発明では、有機溶媒と溶質とからなる
電解液にポリグリセリンポリオキシアルキレンエステル
を添加したことを特徴とする。ポリグリセリンポリオキ
シアルキレンエステルの添加量は０．５〜４０ｗｔ％が
好ましい。(Means for Solving the Problems) The present invention according to the above object is characterized in that a polyglycerol polyoxyalkylene ester is added to an electrolytic solution consisting of an organic solvent and a solute. The amount of polyglycerin polyoxyalkylene ester added is preferably 0.5 to 40 wt%.
前記溶媒としては、エチレングリコールを主体としたも
のあるいはγ−ブチロラクトンを主体としたものが好適
である。The solvent is preferably one based on ethylene glycol or one based on γ-butyrolactone.
ここでポリグリセリンポリオキシアルキレンエステルは
、ポリグリセリン（重合度２〜１５）１モルに対し任意
のモル数（実用的には５〜２００モル）のポリオキシエ
チレン（Ｐ ＯＥ）もしくはポリオキシプロピレン（Ｐ
ＯＰ）またはこれらの共重合体あるいは混合物をエス
テル化させたものである。−
また本発明に係る電解コンデンサは、ケース内に密封さ
れたコンデンサ素子に上記電解液が含浸されていること
を特徴としている。Here, the polyglycerin polyoxyalkylene ester is polyoxyethylene (POE) or polyoxypropylene (POE) in an arbitrary number of moles (practically 5 to 200 moles) per mole of polyglycerin (degree of polymerization 2 to 15). P
OP) or a copolymer or mixture thereof. - Furthermore, the electrolytic capacitor according to the present invention is characterized in that a capacitor element sealed within a case is impregnated with the electrolytic solution.
（作用）
ポリエチレンオキシドは直鎖のため結晶性が高く、分子
量１０００程度で固化し、そのため溶解性が悪いのに対
し、本提案のポリグリセリンポリオキシアルキレンエス
テルは、分子構造が多数分枝状となっており結晶性が低
いため高分子量でも液状でありまた溶媒に対する溶解性
が非常に優れている。゛
従って、多量のポリグリセリンポリオキシアルキレンエ
ステルを添加することができ、その結果火花発生電圧を
高め、耐腐食性のある高信幀性の中高圧用電解液を得る
ことができる。(Function) Polyethylene oxide has high crystallinity due to its linear chain, solidifies at a molecular weight of about 1000, and therefore has poor solubility, whereas the polyglycerin polyoxyalkylene ester proposed in this invention has a multi-branched molecular structure. Because of its low crystallinity, it remains liquid even with high molecular weight, and has excellent solubility in solvents. Therefore, it is possible to add a large amount of polyglycerol polyoxyalkylene ester, and as a result, it is possible to increase the spark generation voltage and obtain a highly reliable electrolytic solution for medium and high voltages that is resistant to corrosion.
（実施例）゛ 以下、実施例に基づいて本発明の詳細な説明する。(Example)゛ Hereinafter, the present invention will be described in detail based on Examples.
第１表に、従来例および本発明による実施例の電解液の
組成および特性を示した。Table 1 shows the composition and characteristics of the electrolytic solutions of the conventional example and the example according to the present invention.
従来例１は、ホウ酸系電解液であり火花発生電圧に対し
相対的に高い比抵抗を有する。Conventional Example 1 is a boric acid-based electrolytic solution and has a relatively high specific resistance with respect to the spark generation voltage.
従来例２および３は、有機酸を用いた電解液であり４０
０ＷＶ以上の高圧用には供し得ない。Conventional Examples 2 and 3 are electrolytes using organic acids, and 40
It cannot be used for high pressure applications of 0WV or higher.
従来例４は、８５℃保証４５０ＷＶ用に供する電解液で
あり高い比抵抗を有する。Conventional Example 4 is an electrolytic solution used for 450 WV guaranteed at 85° C. and has a high specific resistance.
従来例５は、γ−ブチロラクトンを溶媒として用いた電
解液の例である。Conventional Example 5 is an example of an electrolytic solution using γ-butyrolactone as a solvent.
これに対し実施例１．２は、従来例２．３に対しポリグ
リセリンポリオキシアルキレンエステルを各１０ｕｔ％
添加したものであり、はぼ同様な比抵抗にて７５〜１７
０Ｖの火花発生電圧を上昇させることができる。On the other hand, Example 1.2 contains 10 ut% of each polyglycerin polyoxyalkylene ester compared to Conventional Example 2.3.
It is added, and has a similar specific resistance of 75 to 17
The spark generation voltage of 0V can be increased.
実施例３．４は、それぞれ４００ＷＶ用、４５０Ｗｖ用
に供するためにポリグリセリンポリオキシアルキレンエ
ステルを用いて調整したものである。Examples 3 and 4 were prepared using polyglycerin polyoxyalkylene ester for use in 400WV and 450WV, respectively.
実施例５は、従来例５に対しポリグリセリンポリオキシ
アルキレンエステルをｌ ９ｗｔ％用いたものであり従
来例に対し３０Ｖの火花電圧の上昇を得ている。In Example 5, 19 wt % of polyglycerin polyoxyalkylene ester was used compared to Conventional Example 5, and the spark voltage was increased by 30 V compared to Conventional Example.
ここで実施例中のポリグリセリンポリオキシアルキレン
エステルは、第２表中の（Ｄ）あるいは（Ｅ）を用いて
いる。Here, as the polyglycerin polyoxyalkylene ester in the Examples, (D) or (E) in Table 2 is used.
次に従来例４、実施例４の電解液を含浸したコンデンサ
素子をケース内に密封して４５０Ｖ１００μＦの電解コ
ンデンサを作成し、１０５℃２０００時間の負荷試験を
行った結果、および実施例３の電解液を用いて４００Ｖ
１００μＦの電解コンデンサを作成し１０５℃２０００
時間の負荷試験を行った結果を第３表に示した。Next, a 450 V 100 μF electrolytic capacitor was created by sealing the capacitor element impregnated with the electrolyte of Conventional Example 4 and Example 4 in a case, and a load test was conducted at 105°C for 2000 hours. 400V using liquid
Create a 100μF electrolytic capacitor and heat it to 105℃2000
The results of the time load test are shown in Table 3.
従来例°４については、全数ガス発生のため弁作動して
しまったが、実施例３および４は良好な結果であり、試
験後解体した結果腐食も認められなかった。Regarding Conventional Example 4, the valve operated due to gas generation in all cases, but Examples 3 and 4 had good results, and no corrosion was observed when they were dismantled after the test.
第２表は種々の平均分子量を持つポリグリセリンポリオ
キシアルキレンエステルの例と性状および第４表の組成
での火花発生電圧を示し、第２図に分子量と火花電圧と
の相関を示す。Table 2 shows examples and properties of polyglycerol polyoxyalkylene esters having various average molecular weights and spark generation voltages for the compositions shown in Table 4, and FIG. 2 shows the correlation between molecular weight and spark voltage.
これより、分子量が大きいほど火花電圧の上昇が大きい
ことがわかる。一方分子量１０００のポリエチレングリ
コール（ＰＥＧＩ ０００）は、常温で半固体であるが
、本提案のポリグリセリンポリオキシアルキレンエステ
ルは、分子量５０００程度でも液状であり、粘度も十分
低い値を示している。From this, it can be seen that the larger the molecular weight, the greater the increase in spark voltage. On the other hand, polyethylene glycol (PEGI 000) with a molecular weight of 1,000 is semi-solid at room temperature, but the polyglycerin polyoxyalkylene ester of the present proposal is liquid even with a molecular weight of about 5,000 and exhibits a sufficiently low viscosity.
また第１図は、第２表の（Ｄ）に当たるポリエチレング
リコールを５〜４０ｗｔ％添加し、アゼライン酸アンモ
ニウム８ｗｔ％、純水３ｗｔ％他エチジエチレングリコ
ールでの火花発生電圧と比抵抗の変化を示す、第１図に
は示してないが、添加量が０．５ｗｔ％のときは火花発
生電圧が３９０Ｖとなったので効果があり、それより少
ない場合は効果が認められなかった。従って、実用的な
添加量としては０．５〜４０ｗｔ％であり、さらに好ま
しくは５〜２５ｗｔ％が効果が大きい。In addition, Figure 1 shows the changes in spark generation voltage and specific resistance when 5 to 40 wt% of polyethylene glycol corresponding to (D) in Table 2 is added, 8 wt% of ammonium azelaate, 3 wt% of pure water, and ethidiethylene glycol. Although not shown in FIG. 1, when the amount added was 0.5 wt %, the spark generation voltage was 390 V, so there was an effect; when the amount was less than that, no effect was observed. Therefore, the practical addition amount is 0.5 to 40 wt%, more preferably 5 to 25 wt%, which is highly effective.
（発明の効果）
以上述べたように本発明によれば、火花発生電圧を効果
的に上昇させることができ高温でも安定な電解液を提供
することができる。(Effects of the Invention) As described above, according to the present invention, it is possible to effectively increase the spark generation voltage and provide an electrolytic solution that is stable even at high temperatures.
第 １ 表 第 ２ 表 第３表 第 ４ 表Chapter 1 Table Table 2 Table 3 Table 4
第１図はポリグリセリンポリオキシアルキレンエステル
の添加量と火花発生電圧との関係を、第２図はポリグリ
セリンポリオキシアルキレンエステルの分子量と火花発
生電圧との関係を示すグラフである。FIG. 1 is a graph showing the relationship between the amount of polyglycerol polyoxyalkylene ester added and the spark generation voltage, and FIG. 2 is a graph showing the relationship between the molecular weight of the polyglycerol polyoxyalkylene ester and the spark generation voltage.
Claims (5)
リオキシアルキレンエステルを添加したことを特徴とす
る電解コンデンサ駆動用電解液。1. An electrolytic solution for driving an electrolytic capacitor characterized by adding polyglycerin polyoxyalkylene ester to an electrolytic solution consisting of an organic solvent and a solute.
加量が０．５〜４０ｗｔ％であることを特徴とする請求
項１記載の電解コンデンサ駆動用電解液。2. 2. The electrolytic solution for driving an electrolytic capacitor according to claim 1, wherein the amount of polyglycerin polyoxyalkylene ester added is 0.5 to 40 wt%.
のであることを特徴とする請求項１または２記載の電解
コンデンサ駆動用電解液。3. The electrolytic solution for driving an electrolytic capacitor according to claim 1 or 2, wherein the organic solvent is mainly composed of ethylene glycol.
のであることを特徴とする請求項１または２記載の電解
コンデンサ駆動用電解液。4. 3. The electrolytic solution for driving an electrolytic capacitor according to claim 1, wherein the organic solvent is mainly composed of γ-butyrolactone.
２、３または４記載の電解液が含浸されていることを特
徴とする電解コンデンサ。5. Claim 1 in a capacitor element sealed in a case,
An electrolytic capacitor impregnated with the electrolytic solution according to 2, 3 or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2300518A JPH04171913A (en) | 1990-11-06 | 1990-11-06 | Electrolyte for driving electrolytic capacitor and electrolytic capacitor using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2300518A JPH04171913A (en) | 1990-11-06 | 1990-11-06 | Electrolyte for driving electrolytic capacitor and electrolytic capacitor using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04171913A true JPH04171913A (en) | 1992-06-19 |
Family
ID=17885787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2300518A Pending JPH04171913A (en) | 1990-11-06 | 1990-11-06 | Electrolyte for driving electrolytic capacitor and electrolytic capacitor using same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04171913A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017017259A (en) * | 2015-07-03 | 2017-01-19 | 阪本薬品工業株式会社 | Electrolytic solution for aluminum electrolytic capacitor and aluminum electrolytic capacitor using the same |
| WO2021171609A1 (en) * | 2020-02-28 | 2021-09-02 | サン電子工業株式会社 | Capacitor |
| WO2021171611A1 (en) * | 2020-02-28 | 2021-09-02 | サン電子工業株式会社 | Capacitor |
| CN114402405A (en) * | 2019-09-13 | 2022-04-26 | 太阳电子工业株式会社 | Capacitor with a capacitor element |
-
1990
- 1990-11-06 JP JP2300518A patent/JPH04171913A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017017259A (en) * | 2015-07-03 | 2017-01-19 | 阪本薬品工業株式会社 | Electrolytic solution for aluminum electrolytic capacitor and aluminum electrolytic capacitor using the same |
| CN114402405A (en) * | 2019-09-13 | 2022-04-26 | 太阳电子工业株式会社 | Capacitor with a capacitor element |
| CN114402405B (en) * | 2019-09-13 | 2023-07-07 | 太阳电子工业株式会社 | Capacitor with a capacitor body |
| WO2021171609A1 (en) * | 2020-02-28 | 2021-09-02 | サン電子工業株式会社 | Capacitor |
| WO2021171611A1 (en) * | 2020-02-28 | 2021-09-02 | サン電子工業株式会社 | Capacitor |
| CN115191020A (en) * | 2020-02-28 | 2022-10-14 | 太阳电子工业株式会社 | Capacitor with a capacitor element |
| CN115191019A (en) * | 2020-02-28 | 2022-10-14 | 太阳电子工业株式会社 | Capacitor with a capacitor element |
| CN115191020B (en) * | 2020-02-28 | 2023-07-07 | 太阳电子工业株式会社 | Capacitor with a capacitor body |
| CN115191019B (en) * | 2020-02-28 | 2023-07-07 | 太阳电子工业株式会社 | Capacitor with a capacitor body |
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