JPH02216811A - Manufacture of aluminum foil for electrolytic capacitor - Google Patents
Manufacture of aluminum foil for electrolytic capacitorInfo
- Publication number
- JPH02216811A JPH02216811A JP1037525A JP3752589A JPH02216811A JP H02216811 A JPH02216811 A JP H02216811A JP 1037525 A JP1037525 A JP 1037525A JP 3752589 A JP3752589 A JP 3752589A JP H02216811 A JPH02216811 A JP H02216811A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum foil
- acid
- treatment
- amine
- electrolytic capacitor
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 36
- 239000011888 foil Substances 0.000 title claims abstract description 36
- 239000003990 capacitor Substances 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 21
- 150000001412 amines Chemical class 0.000 claims abstract description 19
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002253 acid Substances 0.000 claims abstract description 10
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims abstract description 8
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 claims abstract description 8
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 claims abstract description 8
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004327 boric acid Substances 0.000 claims abstract description 6
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000005711 Benzoic acid Substances 0.000 claims abstract description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 4
- 235000010233 benzoic acid Nutrition 0.000 claims abstract description 4
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000007864 aqueous solution Substances 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract 2
- 239000007788 liquid Substances 0.000 description 10
- 230000036571 hydration Effects 0.000 description 5
- 238000006703 hydration reaction Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 2
- OVBPIULPVIDEAO-LBPRGKRZSA-N folic acid Chemical compound C=1N=C2NC(N)=NC(=O)C2=NC=1CNC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 OVBPIULPVIDEAO-LBPRGKRZSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000028161 membrane depolarization Effects 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- OVBPIULPVIDEAO-UHFFFAOYSA-N N-Pteroyl-L-glutaminsaeure Natural products C=1N=C2NC(N)=NC(=O)C2=NC=1CNC1=CC=C(C(=O)NC(CCC(O)=O)C(O)=O)C=C1 OVBPIULPVIDEAO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011724 folic acid Substances 0.000 description 1
- 229960000304 folic acid Drugs 0.000 description 1
- 235000019152 folic acid Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は電解コンデンサ用アルミニウム箔の製造方法
に関し、さらに詳しく言えば、アルミニウム箔を化成す
るに先立って行われる水和処理に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing aluminum foil for electrolytic capacitors, and more specifically, to a hydration treatment performed prior to chemical conversion of the aluminum foil.
電解コンデンサの陽極として使用される電極箔、例えば
平滑なアルミニウム箔やエツチングにより表面積が拡大
されたアルミニウム箔は、これに陽極酸化皮膜を形成す
る化成処理に先立って水和処理が施される。Electrode foil used as an anode of an electrolytic capacitor, such as a smooth aluminum foil or an aluminum foil whose surface area has been expanded by etching, is subjected to a hydration treatment prior to a chemical conversion treatment to form an anodized film thereon.
水和処理は、アルミニウム箔の表面に水酸化皮膜を形成
させることを目的とするものであるが、通常はアルミニ
ウム箔を高温の純水中に浸漬することによって行われる
。The purpose of the hydration treatment is to form a hydroxide film on the surface of the aluminum foil, and it is usually performed by immersing the aluminum foil in high-temperature pure water.
これによれば、化成時の使用電気量が節約され、また、
静電容量も増大される。しかしながら、耐電圧が低い場
合には良好な結果が得ら九ず、約１５０ｖ以上の場合に
のみ有用であるという制約があった。According to this, the amount of electricity used during chemical formation is saved, and
Capacitance is also increased. However, good results cannot be obtained when the withstand voltage is low, and there is a restriction that it is useful only when the withstand voltage is about 150 V or more.
そこで、純水中に微量の硅酸アルカリを添加して水和処
理することが提案された（例えば、特公昭５７−６２５
０号公報参照）、この方法・によると、使用電圧の低い
ものに対してまでも水和処理が有用とされるが、ｔａｎ
δ（損失角の正接）、漏れ電流については特に改善され
ない。Therefore, it was proposed to add a small amount of alkali silicate to pure water for hydration treatment (for example, Japanese Patent Publication No. 57-625
According to this method, the hydration treatment is said to be useful even for products with low working voltage;
There is no particular improvement in δ (tangent of loss angle) and leakage current.
上記の課題を解決するため、この発明においては、アル
ミニウム箔に酸化皮膜を形成する化成処理を行うに先立
って、同アルミニウム箔をアミンと酸を添加した水溶液
、中においてボイル処理することを特徴としている。In order to solve the above problems, the present invention is characterized by subjecting the aluminum foil to a boiling treatment in an aqueous solution containing an amine and an acid, before performing a chemical conversion treatment to form an oxide film on the aluminum foil. There is.
これによれば、使用電圧の低いものまでに対しても、化
成時の使用電気量の節約、静電容量の増大はもとより、
ｔａｎδおよび漏れ電流が低下される。According to this, even for products with low working voltage, not only can the amount of electricity used during chemical formation be reduced and the capacitance increased, but also
tan δ and leakage current are reduced.
なお、アミン濃度は０．００５〜０．１ｍｏｌ／ｌであ
ることが好ましい、使用し得るアミンとしては、エチル
アミン、ジエチルアミン、トリエタノールアミン、プロ
ピルアミン、ジプロピルアミン、ブチルアミンなどが挙
げられる。また、使用し得る酸としては、酢酸、安息香
酸、硼酸などである。さらに、水溶液のｐＨは５〜９の
範囲が好ましい。The amine concentration is preferably 0.005 to 0.1 mol/l. Examples of amines that can be used include ethylamine, diethylamine, triethanolamine, propylamine, dipropylamine, and butylamine. Further, examples of acids that can be used include acetic acid, benzoic acid, and boric acid. Furthermore, the pH of the aqueous solution is preferably in the range of 5 to 9.
（実施例１）
（Ａ）前処理；エチルアミンと酢酸とを添加して、アミ
ン濃度０．０１ａｏｌ／ｌ、 ｐＨ６とした水溶液（液
温９８℃以上）に、アルミニウム箔を９分間浸漬してボ
イル処理した。(Example 1) (A) Pretreatment: An aluminum foil was immersed for 9 minutes in an aqueous solution (liquid temperature of 98°C or higher) with an amine concentration of 0.01 aol/l and a pH of 6 by adding ethylamine and acetic acid, and then boiled. Processed.
（Ｂ）化成処理；硼酸１７％、硫安０．０５％を含む化
成液（液温８５℃）中において、電流密度１０履Ａ／ｃ
ｊ、３８０Ｖの化成電圧を４０分印加した。(B) Chemical conversion treatment: In a chemical conversion solution containing 17% boric acid and 0.05% ammonium sulfate (liquid temperature 85°C), the current density is 10 A/c.
j, a formation voltage of 380 V was applied for 40 minutes.
（Ｃ）減極処理；ｐＨ９のアンモニア水（液温７０℃）
中に３分間浸漬した。(C) Depolarization treatment; pH 9 ammonia water (liquid temperature 70°C)
immersed in water for 3 minutes.
（Ｄ）熱処理；５００℃の加熱雰囲気中に２分間放置し
た。(D) Heat treatment: The sample was left in a heated atmosphere at 500°C for 2 minutes.
（Ｅ）再化成；上記（Ｂ）と同じ。ただし、印加時間は
１３分。(E) Reconversion; same as (B) above. However, the application time was 13 minutes.
（Ｆ）減極処理；上記（Ｃ）と同じ。(F) Depolarization treatment; same as (C) above.
（Ｇ）熱処理；上記（Ｄ）と同じ。(G) Heat treatment; same as above (D).
（Ｈ）再化成；上記（Ｅ）と同じ。(H) Reconversion; same as (E) above.
（Ｉ） 後処理； ｐＨ６，５のリン酸、アンモニア混
合水溶液（液温３０℃）中に４分間浸漬した。(I) Post-treatment; It was immersed for 4 minutes in a mixed aqueous solution of phosphoric acid and ammonia at pH 6.5 (liquid temperature: 30°C).
（実施例２）
（Ａ）前処理；エチルアミンと安息香酸とを添加して、
アミン濃度０．０１ｓ＋ｏｌ／１．ｐＨ６とした水溶液
（液温９８℃以上）にアルミニウム箔を９分間浸漬して
ボイル処理した。以後の（Ｂ）〜（Ｉ）までの工程は上
記実施例１と同じ。(Example 2) (A) Pretreatment: Adding ethylamine and benzoic acid,
Amine concentration 0.01s+ol/1. The aluminum foil was immersed in an aqueous solution having a pH of 6 (liquid temperature of 98° C. or higher) for 9 minutes and subjected to boiling treatment. The subsequent steps (B) to (I) are the same as in Example 1 above.
（実施例３）
（Ａ）前処理；エチルアミンと硼酸とを添加して、アミ
ン濃度０．０１ａｏｌ／ｌ、ｐＨ６とした水溶液（液温
９８℃以上）にアルミニウム箔を９分間浸漬してボイル
処理した。以後の（Ｂ）〜（Ｉ）までの工程は上記実施
例１と同じ。(Example 3) (A) Pretreatment: Boil treatment by immersing aluminum foil for 9 minutes in an aqueous solution (liquid temperature of 98°C or higher) with amine concentration of 0.01 aol/l and pH 6 by adding ethylamine and boric acid. did. The subsequent steps (B) to (I) are the same as in Example 1 above.
（実施例４）
（Ａ）前処理；ジエチルアミンと酢酸とを添加して、ア
ミン濃度０．０１璽ｏｆ／Ｌ ｐＨ６とした水溶液（液
温９８℃以上）にアルミニウム箔を９分間浸漬してボイ
ル処理した。以後の（Ｂ）〜（Ｉ）までの工程は上記実
施例１と同じ。(Example 4) (A) Pretreatment: Aluminum foil was immersed for 9 minutes in an aqueous solution (liquid temperature of 98°C or higher) with an amine concentration of 0.01 of/L and a pH of 6 by adding diethylamine and acetic acid, and then boiled. Processed. The subsequent steps (B) to (I) are the same as in Example 1 above.
（実施例５）
（Ａ）前処理；トリエタールアミンと酢酸とを添加して
、アミン濃度０．０１ａｏｌ／ｌ、 ｐＨ６とした水溶
液（液温９８℃以上）にアルミニウム箔を９分間浸漬し
てボイル処理した。以後の（Ｂ）〜（Ｉ）までの工程は
上記実施例１と同じ。(Example 5) (A) Pretreatment: Aluminum foil was immersed for 9 minutes in an aqueous solution (liquid temperature of 98°C or higher) with an amine concentration of 0.01 aol/l and a pH of 6 by adding triethalamine and acetic acid. Boil processed. The subsequent steps (B) to (I) are the same as in Example 1 above.
く比較例１〉
（Ａ）前処理；アルミニウム箔を純水（液温９８℃以上
）中に９分間浸漬してボイル処理した。以後の（Ｂ）〜
（Ｉ）までの工程は上記実施例１と同じ。Comparative Example 1 (A) Pretreatment: Aluminum foil was immersed in pure water (liquid temperature 98° C. or higher) for 9 minutes and boiled. Subsequent (B)~
The steps up to (I) are the same as in Example 1 above.
〈比較例２〉
（Ａ）前処理；アルミニウム箔を硅酸アルカリを硅素濃
度にして０．１％含む熱水（液温９８℃以上）中に９分
間浸漬してボイル処理した。以後の（Ｂ）〜（Ｉ）まで
の工程は上記実施例１と同じ。<Comparative Example 2> (A) Pretreatment: An aluminum foil was immersed in hot water (liquid temperature of 98° C. or higher) containing 0.1% alkali silicate at a silicon concentration for 9 minutes to undergo boiling treatment. The subsequent steps (B) to (I) are the same as in Example 1 above.
上記実施例１〜５および比較例１，２にて得られたアル
ミニウム化成箔（１５ｘ ２７０■）を陽極として、定
格２５０Ｖ、３０μＦの電解コンデンサを試作し、その
静電容量、 ｔａｎδおよび漏れ電流を測定した結果を
次表に示す。An electrolytic capacitor with a rating of 250 V and 30 μF was prototyped using the chemically formed aluminum foil (15 x 270 cm) obtained in Examples 1 to 5 and Comparative Examples 1 and 2 as an anode, and its capacitance, tan δ, and leakage current were measured. The measured results are shown in the table below.
（表）
以上説明したように、この発明によれば、アルミニウム
箔をアミンと酸を添加した水溶液中においてボイル処理
することにより、その後に行われる化成処理時における
使用電気量の節約、静電容量の増大、ｔａｎδ（Ｉｔ気
損失角）および漏れ電流の低トが達成される。(Table) As explained above, according to the present invention, by boiling aluminum foil in an aqueous solution containing amine and acid, the amount of electricity used during the subsequent chemical conversion treatment can be reduced, and the capacitance can be reduced. An increase in tan δ (It loss angle) and a reduction in leakage current are achieved.
特許出願人 工ルナー株式会社
代理人 弁理士 大 原 拓 也この表から明ら
かなように、この発明によれば。Patent applicant Takuya Ohara, agent and patent attorney for Kolunar Co., Ltd.As is clear from this table, according to this invention.
静電容量、ｔａｎδおよび漏れ電流いずれにおいても比
較例に比べて良好な値を示している。The capacitance, tan δ, and leakage current all exhibit better values than the comparative example.
手続補正書（自発）
平成２年３月５日
■、事件の表示
平成元年特許願第３７５２５号
２、発明の名称
電解コンデンサ用アルミニウム箭の製造方法３、補正を
する者
事件との関係 特許出願人
工ルナー株式会社
５、補正命令の日付（自
年月
発）
目（発送日：同年 月 日）
６、補正の対象
７、補正の内容
（１）特許請求の範囲を別紙のように補正する。Procedural amendment (voluntary) March 5, 1990■, Case description 1989 Patent Application No. 37525 2, Title of invention Method for manufacturing aluminum cages for electrolytic capacitors 3, Person making the amendment Relationship to the case Patent Applicant Artificial Lunar Co., Ltd. 5. Date of amendment order (issued in the month and year of the same year) 6. Target of amendment 7. Contents of the amendment (1) Amend the scope of claims as shown in the attached sheet. .
（２）明細書、第３頁第１６行「ボイル処理」の記載を
「熱水処理Ｊと訂正する。(2) In the specification, page 3, line 16, “boiling treatment” is corrected to “hot water treatment J.”
（３）同書、同頁第１７行「特徴としている。」の記載
の後にＶこの場合、熱水の温度としては９０℃以ヒが好
ましい、Ｊｌを加入する。(3) In the same book, page 17, line 17, after the statement ``Characteristics.'' V, in this case, the temperature of the hot water is preferably 90° C. or higher, and Jl is added.
（４）同書、第４頁第１３行から次行にかけての「ボイ
ル処理」の記載を「熱水処理ｊと訂正する。(4) In the same book, from page 4, line 13 to the next line, the description of "boil treatment" is corrected to "hot water treatment j.
（５）同書、第５頁第１３行および第１８行から次行に
かけての「ボイル処理」の記載をそれぞれ「熱水処理Ｊ
と訂正する。(5) In the same book, page 5, lines 13 and 18 to the next line, the description of “boiling treatment” was changed to “hot water treatment J.
I am corrected.
（６）同書、第６頁第５行、第１１行および第１５行「
ボイル処理」の記載をそれぞれ「熱水処理Ｊと訂正する
。(6) Ibid., page 6, lines 5, 11, and 15.
The description of ``Boiling treatment'' has been corrected to ``Hot water treatment J.''
（７）同書、第７頁第１行［ボイル処ｆ＠Ｊの記載を「
熱水処理」と訂正する。(7) Same book, page 7, line 1 [The description of Boyle f@J is changed to “
Corrected to ``Hot water treatment.''
（８）同書、第８頁第３行「ボイル処理」の記載をｒ熱
水処理Ｊと訂正する。(8) In the same book, page 8, line 3, the description of "boil treatment" is corrected to r-hot water treatment J.
以上
別紙（特願平１−３７５２５号）
ｒ２、特許請求の範囲
（１）アルミニウム箔に酸化皮膜を形成する化成処理を
行うに先立って、同アルミニウム箔をアミンと酸を添加
した水溶液中において詐木処理することを特徴とする電
解コンデンサ用アルミニウム箔の製造方法。Attachment (Patent Application No. 1-37525) R2, Claims (1) Prior to chemical conversion treatment to form an oxide film on the aluminum foil, the aluminum foil is immersed in an aqueous solution containing amine and acid. A method for producing aluminum foil for electrolytic capacitors, characterized by wood treatment.
（２）上記水溶液中におけるアミンの濃度は、ｏ、ｏｏ
ｓ〜０．１ｍｏｌ／ｌである請求項１記載の電解コンデ
ンサ用アルミニウム箔の製造方法。(2) The concentration of amine in the above aqueous solution is o, oo
2. The method for producing an aluminum foil for electrolytic capacitors according to claim 1, wherein the amount is s to 0.1 mol/l.
（３）上記水溶液中に添加されるアミンは、エチルアミ
ン、ジエチルアミン、トリエタノールアミン、プロピル
アミン、ジプロピルアミン、ブチルアミンから選ばれる
請求項１または２記載の電解コンデンサ用アルミニウム
箔の製造方法。(3) The method for producing an aluminum foil for an electrolytic capacitor according to claim 1 or 2, wherein the amine added to the aqueous solution is selected from ethylamine, diethylamine, triethanolamine, propylamine, dipropylamine, and butylamine.
（４）上記酸は、酢酸、安μ、香酸、硼酸から選ばれる
請求項１記載の電解コンデンサ用アルミニウム箔の製造
方法。(4) The method for producing an aluminum foil for an electrolytic capacitor according to claim 1, wherein the acid is selected from acetic acid, ammonium, folic acid, and boric acid.
Claims (5)
行うに先立って、同アルミニウム箔をアミンと酸を添加
した水溶液中においてボイル処理することを特徴とする
電解コンデンサ用アルミニウム箔の製造方法。(1) A method for producing an aluminum foil for an electrolytic capacitor, which comprises boiling the aluminum foil in an aqueous solution containing an amine and an acid prior to performing a chemical conversion treatment to form an oxide film on the aluminum foil.
５〜０．１ｍｏｌ／ｌである請求項１記載の電解コンデ
ンサ用アルミニウム箔の製造方法。(2) The concentration of amine in the above aqueous solution is 0.00
The method for producing an aluminum foil for electrolytic capacitors according to claim 1, wherein the content is 5 to 0.1 mol/l.
ン、ジエチルアミン、トリエタノールアミン、プロピル
アミン、ジプロピルアミン、ブチルアミンから選ばれる
請求項１または２記載の電解コンデンサ用アルミニウム
箔の製造方法。(3) The method for producing an aluminum foil for an electrolytic capacitor according to claim 1 or 2, wherein the amine added to the aqueous solution is selected from ethylamine, diethylamine, triethanolamine, propylamine, dipropylamine, and butylamine.
求項１記載の電解コンデンサ用アルミニウム箔の製造方
法。(4) The method for producing aluminum foil for an electrolytic capacitor according to claim 1, wherein the acid is selected from acetic acid, benzoic acid, and boric acid.
の電解コンデンサ用アルミニウム箔の製造方法。(5) The method for producing an aluminum foil for an electrolytic capacitor according to claim 1, wherein the aqueous solution has a pH of 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1037525A JPH02216811A (en) | 1989-02-17 | 1989-02-17 | Manufacture of aluminum foil for electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1037525A JPH02216811A (en) | 1989-02-17 | 1989-02-17 | Manufacture of aluminum foil for electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02216811A true JPH02216811A (en) | 1990-08-29 |
| JPH0566005B2 JPH0566005B2 (en) | 1993-09-20 |
Family
ID=12499958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1037525A Granted JPH02216811A (en) | 1989-02-17 | 1989-02-17 | Manufacture of aluminum foil for electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02216811A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0616343A2 (en) * | 1993-03-19 | 1994-09-21 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing anode foil for aluminium electrolytic capacitors |
| JP2007053292A (en) * | 2005-08-19 | 2007-03-01 | Nichicon Corp | Solid electrolytic capacitor and its manufacturing method |
| JP2017059807A (en) * | 2015-06-29 | 2017-03-23 | 日本軽金属株式会社 | Method for manufacturing electrode for aluminum electrolytic capacitor |
| WO2018092445A1 (en) * | 2016-11-18 | 2018-05-24 | 日本軽金属株式会社 | Method for producing electrode for aluminum electrolytic capacitor |
| JP2019161158A (en) * | 2018-03-16 | 2019-09-19 | 日本軽金属株式会社 | Method for manufacturing electrode for aluminum electrolytic capacitor |
-
1989
- 1989-02-17 JP JP1037525A patent/JPH02216811A/en active Granted
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0616343A2 (en) * | 1993-03-19 | 1994-09-21 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing anode foil for aluminium electrolytic capacitors |
| EP0616343A3 (en) * | 1993-03-19 | 1994-11-23 | Matsushita Electric Ind Co Ltd | Method of manufacturing anode foil for aluminium electrolytic capacitors. |
| US5449448A (en) * | 1993-03-19 | 1995-09-12 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing anode foil for aluminium electrolytic capacitors |
| CN1094997C (en) * | 1993-03-19 | 2002-11-27 | 松下电器产业株式会社 | Manufacture of anode foil used in aluminium electrolytic capactiance |
| JP2007053292A (en) * | 2005-08-19 | 2007-03-01 | Nichicon Corp | Solid electrolytic capacitor and its manufacturing method |
| JP2017059807A (en) * | 2015-06-29 | 2017-03-23 | 日本軽金属株式会社 | Method for manufacturing electrode for aluminum electrolytic capacitor |
| WO2018092445A1 (en) * | 2016-11-18 | 2018-05-24 | 日本軽金属株式会社 | Method for producing electrode for aluminum electrolytic capacitor |
| EP3544036A4 (en) * | 2016-11-18 | 2020-04-29 | Nippon Light Metal Company, Ltd. | Method for producing electrode for aluminum electrolytic capacitor |
| US11094472B2 (en) | 2016-11-18 | 2021-08-17 | Nippon Light Metal Company, Ltd. | Method for producing electrode for aluminum electrolytic capacitor |
| JP2019161158A (en) * | 2018-03-16 | 2019-09-19 | 日本軽金属株式会社 | Method for manufacturing electrode for aluminum electrolytic capacitor |
| WO2019176267A1 (en) * | 2018-03-16 | 2019-09-19 | 日本軽金属株式会社 | Method for producing electrode for aluminum electrolytic capacitor |
| CN111868861A (en) * | 2018-03-16 | 2020-10-30 | 日本轻金属株式会社 | Method for manufacturing electrode for aluminum electrolytic capacitor |
| CN111868861B (en) * | 2018-03-16 | 2022-04-15 | 日本轻金属株式会社 | Method for manufacturing electrode for aluminum electrolytic capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0566005B2 (en) | 1993-09-20 |
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