JPH02256219A - Solid state electrolytic capacitor - Google Patents
Solid state electrolytic capacitorInfo
- Publication number
- JPH02256219A JPH02256219A JP7749689A JP7749689A JPH02256219A JP H02256219 A JPH02256219 A JP H02256219A JP 7749689 A JP7749689 A JP 7749689A JP 7749689 A JP7749689 A JP 7749689A JP H02256219 A JPH02256219 A JP H02256219A
- Authority
- JP
- Japan
- Prior art keywords
- electrolyte
- complex salt
- electrolytic capacitor
- capacitor
- guanidium
- 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 abstract description 16
- 239000007787 solid Substances 0.000 title claims abstract description 11
- 150000003839 salts Chemical class 0.000 claims abstract description 19
- 239000003792 electrolyte Substances 0.000 claims abstract description 6
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 abstract description 21
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 abstract description 10
- 239000007784 solid electrolyte Substances 0.000 abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000243 solution Substances 0.000 abstract description 4
- 239000011888 foil Substances 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 239000012047 saturated solution Substances 0.000 abstract description 2
- 229910052709 silver Inorganic materials 0.000 abstract description 2
- 239000004332 silver Substances 0.000 abstract description 2
- 239000002904 solvent Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- PCCVSPMFGIFTHU-UHFFFAOYSA-N tetracyanoquinodimethane Chemical compound N#CC(C#N)=C1C=CC(=C(C#N)C#N)C=C1 PCCVSPMFGIFTHU-UHFFFAOYSA-N 0.000 abstract description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 3
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- SGCXWGQRYFJNBJ-UHFFFAOYSA-N 2-aminoguanidine;hydroiodide Chemical compound I.NNC(N)=N SGCXWGQRYFJNBJ-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 radical salt Chemical class 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010294 electrolyte impregnation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、良好な皮膜修復性を有する７、７゜８．８−
テトラシアノキノジメタンからなるイオンラジカル塩を
固体電解質とする固体電解コンデンサに関するものであ
る。Detailed Description of the Invention [Industrial Application Field] The present invention provides a 7,7°8.8-
The present invention relates to a solid electrolytic capacitor using an ionic radical salt of tetracyanoquinodimethane as a solid electrolyte.
［従来の技術］
７．７．８．８−テトラシアノキノジメタン（以下、Ｔ
ＣＮＱと略す）からなるイオンラジカル塩を固体電解質
とする固体電解コンデンサとして、例えばキノリンある
いはイソキノリンをカチオンとし、ＴＣＮＱをアニオン
とするＴ ＣＮ Ｑｔ！塩（特開昭５８−１９１４１４
号）を加熱融解し、冷却固化したものを固体電解質した
ものが良く知られている。なお、これらＴＣＮＱ錯塩の
カチオンにおいて、そのＮ位は炭素数２〜１８までの中
で選ばれたアルキル基で置換されている。[Prior art] 7.7.8.8-tetracyanoquinodimethane (hereinafter referred to as T
For example, a solid electrolytic capacitor that uses an ionic radical salt consisting of CNQ (abbreviated as CNQ) as a solid electrolyte, for example, T CN Qt! that uses quinoline or isoquinoline as a cation and TCNQ as an anion. Salt (JP-A-58-191414
It is well known that a solid electrolyte is obtained by heating and melting the electrolyte (No. 1) and solidifying it by cooling. In addition, in the cation of these TCNQ complex salts, the N-position is substituted with an alkyl group selected from among those having 2 to 18 carbon atoms.
ＴＣＮＱｉ塩を加熱融解し、冷却固化するという方法は
、エツチングを施されたアルミニウム箔あるいはタンタ
ル焼結体にＴＣＮＱ錯塩を融解状態で含浸することがで
きるので、好ましいものである。しかし、その反面ＴＣ
ＮＱ鑵塩の融解温度が高温度であったり、または融解時
間が長時間であると、有機半導体であるＴＣＮＱ錯塩が
分解し、絶縁体に変質してしまうものである。The method of heating and melting the TCNQi salt and cooling and solidifying it is preferable because the etched aluminum foil or tantalum sintered body can be impregnated with the TCNQ complex salt in a molten state. However, on the other hand, TC
If the melting temperature of the NQ iron salt is high or the melting time is long, the TCNQ complex salt, which is an organic semiconductor, decomposes and transforms into an insulator.
［発明の目的］
一方、本発明は比抵抗値が小さい値を有し、熱的にも安
定である新規有機半導体（新規化合物）としてのアミノ
グアニジウムＴＣＮＱ錯塩を固体電解質としたものであ
る。これにより高性能で信頼性の高い固体電解コンデン
サを提供するものである。[Object of the invention] On the other hand, the present invention uses an aminoguanidium TCNQ complex salt as a new organic semiconductor (new compound) that has a small specific resistance value and is thermally stable as a solid electrolyte. . This provides a solid electrolytic capacitor with high performance and high reliability.
［発明の概要］
本発明に係る固体電解コンデンサの基本的な構成は、陽
極酸化（化成）により表面に陽極酸化皮膜を有する弁作
用金属（例えば、アルミニウム、タンタル、チタンおよ
びこれらの合金）を第１の電極とし、第２の電極（対極
）との間に直接あるいはセパレータを介在させてＴＣＮ
ＱＣＮ上らなる固体電解質を有するものである。ＴＣＮ
ＱＣＮ上しては上述したようにアミノグアニジウムＴ
ＣＮ Ｑ ｍ塩である。ここで、アミノグアニジウムＴ
ＣＮＱ錯塩の構造式を示すと次のようになる。[Summary of the Invention] The basic structure of the solid electrolytic capacitor according to the present invention is to use a valve metal (for example, aluminum, tantalum, titanium, or an alloy thereof) having an anodized film on its surface by anodizing (chemical conversion). TCN is used as one electrode and directly or with a separator interposed between it and the second electrode (counter electrode).
It has a solid electrolyte made of QCN. TCN
For QCN, as mentioned above, aminoguanidium T
CN Q m salt. Here, aminoguanidium T
The structural formula of the CNQ complex salt is as follows.
アミノグアニジウムＴＣＮＱ錯塩の構造式式［１］中、
ｍは１モルの錯塩に含まれる中性７．７．８．８−テト
ラシアノキノジメタンのモル数に対応する正の数（０，
５〜１．５）を意味する。In the structural formula [1] of aminoguanidium TCNQ complex salt,
m is a positive number (0,
5 to 1.5).
次に、アミノグアニジウムＴ ＣＮ Ｑｔａ塩の合成方
法について述べる。水５０ｍ１中に０．１モルのヨウ化
水素酸（４７％水溶液）を入れ、これに０．１モルのア
ミノグアニジン重炭酸塩を加え、過熱し１反応させるこ
とにより、アミノグアニジン−ヨウ化水素酸塩を合成し
た。このアミノグアニジン−ヨウ化水素酸塩の０．００
６７モルをアセトニトリルに沸騰状態で溶解し、０゜０
０５０モルのＴＣＮＱＣＮ上溶解した沸騰状態のアセト
ニトリル溶液と混合する。その後、約１０時間。Next, a method for synthesizing aminoguanidium T CN Qta salt will be described. Aminoguanidine-hydriodide The acid salt was synthesized. 0.00 of this aminoguanidine-hydriodide
Dissolve 67 mol in acetonitrile at boiling temperature to 0°0
0.050 mol of TCNQCN dissolved in boiling acetonitrile solution. After that, about 10 hours.
５℃で放置することにより、アミノグアニジウムＴＣＮ
Ｑ錯塩の針状結晶が得られる。この結晶を少量のアセト
ニトリルで洗浄し、さらにメタノールで洗液が着色しな
くなるまで洗浄した後、エーテルで洗浄し、乾燥し、固
体電解コンデンサに適用する。By standing at 5℃, aminoguanidium TCN
Acicular crystals of Q complex salt are obtained. The crystals are washed with a small amount of acetonitrile, further washed with methanol until the washing solution is no longer colored, then washed with ether, dried, and applied to a solid electrolytic capacitor.
アミノグアニジウムＴＣＮＱｍ塩の比抵抗値は７．７１
［Ω・０℃コであった。The specific resistance value of aminoguanidium TCNQm salt is 7.71
[It was Ω・0℃.
［実施例］
次に、上述のようにして得たアミノグアニジウムＴＣＮ
Ｑ錯塩を電解コンデンサに適用した実施例について述べ
る。[Example] Next, aminoguanidium TCN obtained as described above
An example in which Q complex salt is applied to an electrolytic capacitor will be described.
アミノグアニジウムＴＣＮＱ錯塩をアセトニトリル中に
溶解し、飽和溶液とする１次に、この溶液中にコンデン
サ素子を浸漬し、その後５０〜６０［”Ｃ］で真空乾燥
を行い、溶媒のアセトニトリルを飛散させた。この操作
を３回繰返し行なった。コンデンサ素子は電極として表
面を約１０倍にエツチングしたアルミニウム箔を用い、
さらに表面を化成処理した酸化皮膜を形成したものであ
る。電解質の含浸後にコロイダルカーボンを塗布し、そ
の後に銀ペーストを塗布し、リード線をハンダ付けし、
外装することにより定格１．０［μＦ］の陽極に対して
１，１ ［μＦ］、損失４゜１ ［％］の固体電解コン
デンサを得た。Aminoguanidium TCNQ complex salt is dissolved in acetonitrile to make a saturated solution. First, the capacitor element is immersed in this solution, and then vacuum dried at 50 to 60 ["C] to scatter the solvent acetonitrile. This operation was repeated three times.The capacitor element used an aluminum foil whose surface was etched approximately 10 times as much as the electrode.
Furthermore, the surface is chemically treated to form an oxide film. After electrolyte impregnation, apply colloidal carbon, then apply silver paste, solder the lead wires,
By packaging, a solid electrolytic capacitor with a loss of 1.1 [μF] and a loss of 4°1 [%] was obtained for an anode with a rating of 1.0 [μF].
上述のようにして得た本発明に係る固体電解コンデンサ
（定格２５ ［Ｖ］ −１，０［ｕＦ］ ）（７）寿
命特性比較を第１表に示す、第１表中、静電容量値およ
び損失角の正接は周波数が１２０［Ｈｚ］での値である
。漏れ電流は、定格電圧（２５［Ｖ］ ）印加１分後に
測定した値である。A comparison of the life characteristics of the solid electrolytic capacitor (rated 25 [V] -1,0 [uF]) (7) according to the present invention obtained as described above is shown in Table 1. The tangent of the loss angle is the value at a frequency of 120 [Hz]. The leakage current is a value measured 1 minute after application of the rated voltage (25 [V]).
Claims (1)
８−テトラシアノキノジメタン錯塩を用いたことを特徴
とする固体電解コンデンサ。(1) Aminoguanidium 7,7,8, as an electrolyte
A solid electrolytic capacitor characterized by using an 8-tetracyanoquinodimethane complex salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7749689A JPH02256219A (en) | 1989-03-29 | 1989-03-29 | Solid state electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7749689A JPH02256219A (en) | 1989-03-29 | 1989-03-29 | Solid state electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02256219A true JPH02256219A (en) | 1990-10-17 |
Family
ID=13635584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7749689A Pending JPH02256219A (en) | 1989-03-29 | 1989-03-29 | Solid state electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02256219A (en) |
-
1989
- 1989-03-29 JP JP7749689A patent/JPH02256219A/en active Pending
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