JPS59215716A - Method of compounding electrode foil for electrolytic condenser - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming an electrode for Tatsuno condensate +j, and firstly to a forward current means for applying a voltage to the electrode foil during the formation of a cathode oxide film.

Conventionally, for example, in order to form a saponified film on roughened aluminum foil for use in fc capacitors, a voltage is applied to roughened U foil that has been soaked in a chemical bath containing an electrolyte. is being carried out. The general chemical formation method is explained with reference to Fig. 1. Direct electricity is applied to the Cu metal roller (1) from m (2) to the anode;
An anode is connected to each of the electrodes (4). □
The U foil (which has been roughened by contacting the metal roller (1))
5) runs between the two electrodes (4) arranged on the electrolysis M (6) in the chemical conversion tank (3), and the submerged insulating roller (7) placed at the bottom of the chemical conversion tank (3). ), it was turned over again, passed through the barrier between the two electrodes (4), came out onto the liquid surface, and was running in contact with an insulated roller (8). However, in this method of feeding the M foil (5) by bringing the roughened foil (5) into contact with the metal roller (1), the contact of the foil (5) with the metal roller (1) The contact area is small because it is limited to one part of the (5) tIL surface, and the effective contact area is small due to the surface of the (5) tIL surface. When the metal roller (IJ) comes into contact with the metal roller (IJ), it generates heat due to the resistance when it comes into contact with the insulating state, and when a large current is being fed, the heat generation causes the U-shape (5) to become hot. ) has rarely caused accidents such as melting.In addition, sparks and partial melting may occur due to the generation of heat generation on the surface of the metal roller (1). , There are also operational problems such as having to constantly polish the metal roller (IJ) to prevent these problems.1.
) has been implemented, but the running speed of the U-foil (5) could not be increased because the low-salt sink could not be fed.◎ The present invention was developed in view of the above points. In the chemical conversion process that produces a polarized film on roughened U-foil, the feeding method to U-foil is carried out from the positive and negative electrodes through an electrolyte, unlike conventional metal foils. - In order to increase the running speed of the At foil in the chemical formation process by eliminating sparks, melting, melting, etc. caused by the contact between the metal and the U-depression, and to obtain a high crystallization rate of chemically formed aluminum with rough characteristics. It is something to do. This will be explained below using an actual hI8I example.

As shown in Figure 2, the anode of the power supply (11) is insulated and placed in the electrolyte (13) of the 7C IvI (12), for example, stainless steel, Pb, Sn, Pt.
, C'71 which three anode electrodes (14015) (1
6), and the cathode is connected to the chemical conversion tank (171 chemical liquid (18
) The example installed inside is stainless steel.

Three shades such as I'b, Sn, Pt, C etc.
'a flame t193+203(21)k: ha t&. The above mh7a (J3) is 1 to increase the conductivity.
~20 wt% adipine ammonium water bath solution or an adipine ammonium phosphoric acid bath solution prepared by adding, for example, 0.01-0.1 wt% phosphoric acid to the aqueous solution, etc. are used, and the chemical conversion solution (1 day) is also It is preferable to use

This is the roughened At foil (2) that ran inside the power bank (12).
2) is an insulated roller (23), submerged insulated roller +2
43. Turn the insulated roller +253 [261] into the chemical conversion tank (1
7) When entering the chemical liquid (18) and running, energize (
This is because the electrolyte solution (13) of 12 parts is naturally brought into the chemical conversion tank (17), and the composition of the chemical conversion tank (18) changes by %+7'C. In addition, (27) is a chemical conversion tank (submerged insulation in 173), (28) is a woodcutter four-lar, and !11 (
29) and (3o) are M foils (2) exposed in the air.
This is a cooling shower that spouts th IW liquid (13) to prevent heat generation in the shower (29).
) and (3o).
3) uses the electrolytic solution (13) and chemical solution (1) described in the description.
Similar to the relationship with 8), this is because water or the like will not bring about an intensification of the composition of the chemical liquid (18) and will not achieve the purpose of the J'jT period.

For example, when At foil (22) that has stopped bleeding is placed in a chemical processing machine with the above-mentioned configuration and run, At foil (22) is formed.
is an anode electrode +1 connected to the @ pole of the DC power supply (11).
4015) through the electrolyte (18),
The contact area between the At foil (22) and the electrode is the opposite surface of the anode electrode + 14) (15) in the electrolyte (1 day), so it has a very large area, so the current density is significantly reduced, so no heat is generated. There is no deformation of the foil or spark defects that conventionally occurred at around 0.5% (length or weight ratio), and the system can run smoothly.
40-ra periodic ω [The effect of not requiring polishing is that it reduces the need for 0-sum ta-ton application, so it is possible to chain electricity compared to the conventional method.
The I-Nonki five-point value is significantly increased, and as a result, the running speed of the U foil (22) in the chemical conversion process can be increased.

According to the inventor's actual reduction 2, the comparison of the chemical conversion method shown in FIG. 1 with the chemical conversion method shown in FIG.

Running speed (hi!zumi, n) As is clear from the above results, the chemical formation method of the present invention reduces the electric knife density to a large fI'hi, which eliminates defects caused by heat generation and sparks, and also eliminates metal rollers. ef
Dust is not required, and the running degree of the ν foil can be increased to approximately twice that of the conventional method, thereby achieving approximately twice the productivity.

[Brief explanation of the drawing]

Figure 1 shows a cross section 41 for explaining the conventional chemical formation method.
FIG. 2 is a first-page structural diagram for explaining the chemical conversion method disclosed herein. +11---One straight five h1. Source (12)-----Ishin Electric Copper (13)-----@Vinegar Solution (14H15)(
16)----Ichiyotsu electrode (:17)----Ichikasei Hinoki IIBto---Ichikasei liquid 119) (20) (21)-
--- One cathode and other electrode (22) --- One rough hemostatic U foil + 233 (25N26028J --- Insulated roller + 243 (271 --- One liquid abort is roller +
293 (30)---Shower Patent Applicant Marukon Electronics Co., Ltd. Procedural Amendment (Spontaneous) Commissioner of the Patent Office Kazuo Wakasugi 1, Indication of Case Patent Application No. 91687 of 1982 2, Title of Invention Chemical Formation Method for Electrode Foil for Electrolytic Capacitors 3, Relationship with the Case of Person Who Makes Amendment Patent Applicant Address: Yamagata-kei R'Gofuei 1560 Telephone: Nagai (0238B) 4-2131 (Main Representative)
Postal code 993 Voluntary 5, Contents of amendment to the "Detailed Description of the Invention" of the specification to be amended (1) Page 5, line 14 of the specification [Electrolyte (18) J] [Electrolyte (13) ) Correct it as J. (21 Specification, page 5, line 15, “Electrolyte (18) J” should be corrected to “Electrolyte (13) J.”)

Claims (1)

[Scope of Claims] (1) An energizing tank having a cathode electrode connected to a direct tlt'a source in an electrolytic solution, and a cathode electrode connected to a direct current* source after the energizing tank in a chemical solution. 1. A method for chemically forming an electrode foil for an electrolytic capacitor, the method comprising disposing a chemically forming tank having a chemical forming tank, and running the electrode foil through the current-carrying tank, and then running the electrode foil through the chemically forming tank. (2) A patent claim characterized in that the electrolytic solution and the chemical solution consist of a 1-2 Q wt% ammonium adipate aqueous solution or an aqueous solution in which 0.01-0.1 wt% phosphoric acid is added to the adipic ammonium aqueous solution. Method for forming an electrode foil for an electrolytic capacitor as described in Clause (1) of Section 0 (3) Cooling the electrode foil exposed in the air between the energizing tank and the chemical forming tank by spouting an electrolyte onto the electrode foil. ``A method for forming an electrode foil for an electrolytic capacitor,'' as set forth in paragraph (1) or (2) of the claim.