JPH0241886B2 - - Google Patents
Info
- Publication number
- JPH0241886B2 JPH0241886B2 JP7145584A JP7145584A JPH0241886B2 JP H0241886 B2 JPH0241886 B2 JP H0241886B2 JP 7145584 A JP7145584 A JP 7145584A JP 7145584 A JP7145584 A JP 7145584A JP H0241886 B2 JPH0241886 B2 JP H0241886B2
- Authority
- JP
- Japan
- Prior art keywords
- tcnq
- electrolytic capacitor
- quinolinium
- iso
- propyl
- 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.)
- Expired
Links
- 150000003839 salts Chemical class 0.000 claims description 34
- 239000003990 capacitor Substances 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 5
- 239000003792 electrolyte Substances 0.000 claims description 4
- 239000007784 solid electrolyte Substances 0.000 description 8
- 239000013078 crystal Substances 0.000 description 6
- 238000002425 crystallisation Methods 0.000 description 6
- 230000008025 crystallization Effects 0.000 description 6
- 238000005530 etching Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- SMWDFEZZVXVKRB-UHFFFAOYSA-O hydron;quinoline Chemical compound [NH+]1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-O 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- AWJUIBRHMBBTKR-UHFFFAOYSA-O isoquinolin-2-ium Chemical compound C1=[NH+]C=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-O 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Conductive Materials (AREA)
- Primary Cells (AREA)
- Thermistors And Varistors (AREA)
- Fuel Cell (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、TCNQ塩を固体電解質に用いた
固体電解コンデンサの電気的特性の改善に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] This invention relates to improvement of the electrical characteristics of a solid electrolytic capacitor using a TCNQ salt as a solid electrolyte.
従来、固体電解コンデンサには、１種類の
TCNQ塩を電解質に用いたものが知られている。
ここで、TCNQ塩とは、７，７，８，８テトラ
シアノキシジメタンから成る塩を意味する。
Traditionally, solid electrolytic capacitors come in one type.
Products using TCNQ salt as an electrolyte are known.
Here, TCNQ salt means a salt consisting of 7,7,8,8 tetracyanoxydimethane.
このTCNQ塩を用いた電解コンデンサの製造
上、高度にエツチングを施したいわゆる高倍率エ
ツチング箔を電極とする場合、TCNQ塩の結晶
化過程において針状結晶が出来やすく、その電極
とTCNQ塩界面との接触が不十分となるおそれ
がある。 When manufacturing electrolytic capacitors using this TCNQ salt, when highly etched so-called high-magnification etching foil is used as an electrode, needle-like crystals are likely to form during the crystallization process of the TCNQ salt, and the interface between the electrode and the TCNQ salt Contact may be insufficient.
通常、TCNQ塩は、
高温下で溶融させて電極に付着させ、それを
冷却して結晶化する方法、
溶媒を加えて溶液とし、それを付着させて再
結晶する方法、
溶媒も用いて結晶化する方法等
で結晶化される。 Usually, TCNQ salt is melted at high temperature and deposited on an electrode, then cooled and crystallized, a solvent is added to form a solution, the solution is deposited and recrystallized, and a solvent is also used for crystallization. It is crystallized by a method such as
TCNQ塩が、電極のエツチングピツト内に浸
透してそのピツト内で結晶化する場合において、
そのピツトの内壁間を短絡する形で結晶を形成す
る場合には、その結晶が、実質上陰極として機能
するため、その結晶は有効であるが、そのエツチ
ングピツトの壁部に付着したTCNQ塩が、針状
結晶となり、その先端部が他の壁部に僅かに接触
し、或いは接触しない場合には、その部分は陰極
として機能しないか、或いは陰極として機能して
も大きな接触抵抗を持つことになる。これは、電
解コンデンサの等価直列抵抗ESRを増大させ、
損失が大きくなるなど、製品価値を低下させる。
When the TCNQ salt penetrates into the etching pit of the electrode and crystallizes within the pit,
If a crystal is formed in such a way that the inner walls of the pit are short-circuited, the crystal effectively functions as a cathode, so it is effective, but the TCNQ salt attached to the wall of the etching pit is If it becomes a needle-shaped crystal and its tip slightly touches or does not touch another wall, that part will not function as a cathode, or even if it functions as a cathode, it will have a large contact resistance. . This increases the equivalent series resistance ESR of the electrolytic capacitor,
Decreases product value, such as increasing losses.
この発明は、TCNQ塩の結晶化過程を制御し、
針状結晶の発生を抑制し、電気的特性を改善する
ことを目的とする。 This invention controls the crystallization process of TCNQ salt,
The purpose is to suppress the generation of needle-like crystals and improve electrical characteristics.
この発明は、２種以上のTCNQ塩を混合して
電解質を形成し、結晶化過程を制御して非結晶の
多く含まれる固体電解質を含浸することを特徴と
する。
The present invention is characterized in that an electrolyte is formed by mixing two or more types of TCNQ salts, and a solid electrolyte containing a large amount of amorphous is impregnated by controlling the crystallization process.
このような発明によれば、非結晶性の固体電解
質によつて、エツチングピツト内部との接触が良
好になるので、接触抵抗が減少し、損失低下を実
現できる。
According to this invention, the amorphous solid electrolyte provides good contact with the inside of the etching pit, reducing contact resistance and reducing loss.
以下、この発明を図面に示した実施例を参照し
て詳細に説明する。
Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.
第１図に示すように、容器２には、固体電解質
となるTCNQ塩３が溶融したものが充填されて
いる。このTCNQ塩３は、２種類以上のTCNQ
塩の混合、例えば、イソ−プロピル−イソ−キノ
リニウム（TCNQ）2及びｎ−プロピル−ｎ−キ
ノリニウム（TCNQ）2の両錯塩の混合系或いは
他の２種類以上のTCNQ塩から成る。 As shown in FIG. 1, a container 2 is filled with a molten TCNQ salt 3 that serves as a solid electrolyte. This TCNQ salt 3 contains two or more types of TCNQ.
A mixture of salts, for example, a mixture of complex salts of iso-propyl-iso-quinolinium (TCNQ) 2 and n-propyl-n-quinolinium (TCNQ) 2 or two or more other TCNQ salts.
このTCNQ塩３の溶融は、加熱のみ、又は溶
媒を加えて加熱し溶液化する等の方法による。 The TCNQ salt 3 is melted by heating alone or by adding a solvent and heating to form a solution.
このTCNQ塩３の液体に、電解コンデンサ素
子４を浸し、その電極表面にTCNQ塩３を付着
させる。この場合、電解コンデンサ素子４は、固
体状素子又はアルミニウム等の金属からなる陽極
側及び陰極側の電極箔をその両者間に介在させた
セパレータ紙とともに巻回した巻回素子で構成さ
れている。この電解コンデンサ素子４の端部に
は、陽極側の電極箔に電気的に接続された陽極側
リード６が引き出してある。 The electrolytic capacitor element 4 is immersed in the liquid of the TCNQ salt 3, and the TCNQ salt 3 is attached to the electrode surface. In this case, the electrolytic capacitor element 4 is constituted by a solid element or a wound element in which electrode foils on the anode side and the cathode side made of metal such as aluminum are wound together with separator paper interposed between them. An anode-side lead 6 electrically connected to an anode-side electrode foil is drawn out from the end of the electrolytic capacitor element 4 .
このようなTCNQ塩浴を行つた後、電解コン
デンサ素子４に付着しているTCNQ塩３を冷却、
固化させ、その結晶化を図る。 After performing such a TCNQ salt bath, the TCNQ salt 3 adhering to the electrolytic capacitor element 4 is cooled.
Let it solidify and try to crystallize it.
そして、第２図に示すように、電解コンデンサ
素子４の表面には、グラフアイト層８を形成した
後、その上に銀塗料層１０を形成する。 As shown in FIG. 2, a graphite layer 8 is formed on the surface of the electrolytic capacitor element 4, and then a silver paint layer 10 is formed thereon.
このような表面処理を施した電解コンデンサ素
子４は、容器１２の内部に半田１４及び合成樹脂
１６を介在させて固定するとともに、半田１４に
は陰極側リード１８を設置し、容器１２から引き
出す。 The electrolytic capacitor element 4 subjected to such surface treatment is fixed inside the container 12 with solder 14 and a synthetic resin 16 interposed therebetween, and a cathode lead 18 is installed on the solder 14 and pulled out from the container 12.
このように電解コンデンサを形成すれば、陽極
側及び陰極側の電極箔の間にTCNQ塩３から成
る固体電解質が介在し、この固体電解質が実質的
な陰極として機能する。この陰極には、グラフア
イト層８及び半田１４を介して陰極側リード１８
が電気的に接続されているので、リード６，１８
間には、所望の容量が形成される。 When an electrolytic capacitor is formed in this manner, a solid electrolyte made of TCNQ salt 3 is interposed between the electrode foils on the anode side and the cathode side, and this solid electrolyte functions as a substantial cathode. This cathode is connected to a cathode side lead 18 via a graphite layer 8 and solder 14.
are electrically connected, so leads 6 and 18
A desired capacitance is formed therebetween.
そして、固体電解質には、２種類以上の
TCNQ塩を混合しているため、結晶化過程が制
御される結果、非晶質が多く含まれている。これ
は実験により確認することができる。 In addition, solid electrolytes contain two or more types.
By mixing TCNQ salt, the crystallization process is controlled, resulting in a large amount of amorphous material. This can be confirmed by experiment.
このため、従来のエツチングピツト内での針状
結晶による不都合がなく、エツチングピツト内部
との接触が良好になり、ピツト内壁との密着性が
高くなるので、接触抵抗が減少し、損失低下が実
現できる。 Therefore, there is no inconvenience caused by needle-shaped crystals in the etching pit as in the past, and the contact with the inside of the etching pit is improved, and the adhesion with the inner wall of the pit is increased, so that contact resistance is reduced and loss can be reduced.
第３図はこの実験結果を示している。これはイ
ソ−プロピル−イソ−キノリニウム（TCNQ）2
｛＝IP−IQ｝およびｎ−プロピル−ｎ−キノリニ
ウム（TCNQ）2｛＝NP−Ｑ｝の両錯塩の混合系
において、両塩の組成と固体電解コンデンサの
ESRとの関係を示しており、イソ−プロピル−
イソ−キノリニウム（TCNQ）2の濃度が、20な
いし98重量％（wt％）、ｎ−プロピル−ｎ−キノ
リニウム（TCNQ）2の濃度が２ないし80重量％
（wt％）の範囲において、ESRの低下が認められ
る。 Figure 3 shows the results of this experiment. This is iso-propyl-iso-quinolinium (TCNQ) 2
In a mixed system of both complex salts of {=IP-IQ} and n-propyl-n-quinolinium (TCNQ) 2 {=NP-Q}, the composition of both salts and the solid electrolytic capacitor are
It shows the relationship with ESR, and isopropyl
The concentration of iso-quinolinium (TCNQ) 2 is 20 to 98% by weight (wt%), and the concentration of n-propyl-n-quinolinium (TCNQ) 2 is 2 to 80% by weight.
(wt%), a decrease in ESR is observed.
なお、実施例では、イソ−プロピル−イソ−キ
ノリニウム（TCNQ）2及びｎ−プロピル−ｎ−
キノリニウム（TCNQ）2の両錯塩の混合系につ
いて説明したが、このような特性は２種類以上の
TCNQ塩を混合した場合には同様に発生し、同
様の効果が得られることが推測される。 In addition, in the examples, iso-propyl-iso-quinolinium (TCNQ) 2 and n-propyl-n-
Although we have explained the mixed system of both complex salts of quinolinium (TCNQ) 2 , such properties are not unique to the combination of two or more types.
The same phenomenon occurs when TCNQ salt is mixed, and it is assumed that a similar effect can be obtained.
以上説明したように、この発明によれば、２種
類以上のTCNQ塩を混合して電解質を形成する
ことにより、結晶化過程を制御して非結晶の多く
含まれる固体電解質を含浸したので、等価直列抵
抗を減少させ、損失の低下が実現できる。
As explained above, according to the present invention, by mixing two or more types of TCNQ salts to form an electrolyte, the crystallization process is controlled and a solid electrolyte containing a large amount of amorphous is impregnated. It is possible to reduce series resistance and reduce loss.
第１図は電解コンデンサ素子のTCNQ塩浴を
示す説明図、第２図はこの発明の固体電解コンデ
ンサの実施例を示す説明図、第３図は混合系
TCNQ塩に対する等価直列抵抗を示す説明図で
ある。
３……TCNQ塩、４……電解コンデンサ素子。
Fig. 1 is an explanatory diagram showing a TCNQ salt bath for an electrolytic capacitor element, Fig. 2 is an explanatory diagram showing an embodiment of the solid electrolytic capacitor of the present invention, and Fig. 3 is an explanatory diagram showing a mixed system.
FIG. 3 is an explanatory diagram showing equivalent series resistance for TCNQ salt. 3... TCNQ salt, 4... Electrolytic capacitor element.
Claims (1)
を含浸したことを特徴とする固体電解コンデン
サ。 ２ 前記２種以上のTCNQ塩は、イソ−プロピ
ル−イソ−キノリニウム（TCNQ）2と、ｎ−プ
ロピル−ｎ−キノリニウム（TCNQ）2とを混合
したことを特徴とする特許請求の範囲第１項に記
載の固体電解コンデンサ。 ３ 前記イソ−プロピル−イソ−キノリニウム
（TCNQ）2の濃度を20ないし98重量％、前記ｎ−
プロピル−ｎ−キノリニウム（TCNQ）2の濃度
を２ないし80重量％に設定したことを特徴とする
特許請求の範囲第２項に記載の固体電解コンデン
サ。[Claims] 1. A solid electrolytic capacitor impregnated with an electrolyte made of a mixture of two or more types of TCNQ salts. 2. Claim 1, wherein the two or more TCNQ salts are a mixture of iso-propyl-iso-quinolinium (TCNQ) 2 and n-propyl-n-quinolinium (TCNQ) 2 Solid electrolytic capacitors described in . 3 The concentration of the iso-propyl-iso-quinolinium (TCNQ) 2 is 20 to 98% by weight, the n-
The solid electrolytic capacitor according to claim 2, wherein the concentration of propyl-n-quinolinium (TCNQ) 2 is set at 2 to 80% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7145584A JPS60214518A (en) | 1984-04-10 | 1984-04-10 | Solid electrolytic condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7145584A JPS60214518A (en) | 1984-04-10 | 1984-04-10 | Solid electrolytic condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60214518A JPS60214518A (en) | 1985-10-26 |
| JPH0241886B2 true JPH0241886B2 (en) | 1990-09-19 |
Family
ID=13461060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7145584A Granted JPS60214518A (en) | 1984-04-10 | 1984-04-10 | Solid electrolytic condenser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60214518A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62290117A (en) * | 1986-06-09 | 1987-12-17 | 日本電気株式会社 | Organic solid electrolytic capacitor |
-
1984
- 1984-04-10 JP JP7145584A patent/JPS60214518A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60214518A (en) | 1985-10-26 |
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