CN103400695A - High-reliability non-solid electrolyte all-tantalum capacitor and manufacturing process thereof - Google Patents
High-reliability non-solid electrolyte all-tantalum capacitor and manufacturing process thereof Download PDFInfo
- Publication number
- CN103400695A CN103400695A CN2013103417036A CN201310341703A CN103400695A CN 103400695 A CN103400695 A CN 103400695A CN 2013103417036 A CN2013103417036 A CN 2013103417036A CN 201310341703 A CN201310341703 A CN 201310341703A CN 103400695 A CN103400695 A CN 103400695A
- Authority
- CN
- China
- Prior art keywords
- tantalum
- anode
- insulator
- negative electrode
- shell
- 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
Images
Abstract
The invention discloses a high-reliability non-solid electrolyte all-tantalum capacitor. The capacitor comprises a tantalum shell, an electrolyte, insulators, cathodes, anodes, a positive outlet wire, a negative outlet wire and diaphragms, wherein the anodes and the cathodes are stacked in sequence; the diaphragms are sandwiched between adjacent anodes and cathodes. The manufacturing process of the capacitor comprises the following steps: arranging the cathodes and the anodes; placing a drainage spacer, a lower spacer, an upper spacer and a drainage ring on the topmost cathode in sequence; passing each anode lead through an insulator tantalum tube and covering the insulator tantalum tube with an insulator; injecting the electrolyte; fixedly butting the anode lead which penetrates the insulator tantalum tube against the positive outlet wire; finishing mounting. According to capacitor and the manufacturing process, each anode of the multi-core tantalum capacitor is led out individually, so that the risk of invalidation of the entire product caused by invalidation of a pellet in the tantalum capacitor is greatly reduced. All the performances of the original product are kept by the multi-anode lead-out mode, and the reliability of the product is greatly improved.
Description
Technical field
The present invention relates to a kind of electrolytic capacitor, relate in particular to a kind of non solid electrolyte all tantalum capacitor that improves product reliability.
Background technology
At present, along with the develop rapidly of modern science and technology technology, China's military power is also in continuous growth.Like this, market is also little, lightweight by the original volume of pursuing simply to the demand of electronic devices and components, and capacity is large, is transformed in the examination of product reliability index, particularly in a series of complete machine units such as radar, dirigibles.The lead-out mode of tradition multicore large value capacitor adopts a positive pole and one or more negative pole, occurs easily that in use positive wire disconnects product failure, need to have a kind of lead-out mode of new model can remove the misgivings of this respect.
in prior art, application number a kind of lead-out mode and capacitor of full tantalum shell tantalum electrolytic capacitor lead-out wire that be 201010147967.4 disclosure of the invention, for monolithic capacitor, the lead-out mode of capacitor is: both positive and negative polarity is drawn and is the nickel sheet or the nickel plating copper sheet is drawn, be respectively anodal nickel sheet or nickel plating copper sheet lead-out tablet and negative pole nickel sheet or nickel plating copper sheet lead-out tablet, and for the termination of anodal nickel sheet or nickel plating copper sheet lead-out tablet and negative pole nickel sheet or nickel plating copper sheet lead-out tablet has wiring hole, anodal nickel sheet or nickel plating copper sheet lead-out tablet are connected the lead-out tablet that nickel plating copper sheet lead-out tablet makes and are connected with the other electron component device with wire with negative pole nickel sheet, and be that anodal nickel sheet or nickel plating copper sheet lead-out tablet and negative pole nickel sheet or nickel plating copper sheet lead-out tablet are welded on capacitor as the capacitor lead-out tablet respectively by laser welding, ejector as condenser capacity.Application number be 200810032024.X disclosure of the invention a kind of non solid electrolyte all tantalum capacitor and preparation method thereof, comprise shell, cathode sheets, anode strip, cathode leg, anode tap and gland, cathode sheets and anode strip all are placed in case body; Cathode leg passes gland and is connected with cathode sheets; Anode tap passes gland and is connected with anode strip; The cathode sheets of the porous tantalum core that employing tantalum metal powder compacting sintering is made, and on the two sides of anode strip and/or cathode sheets, all with conduct, insulate and the TAO of anti-the back-pressure
5The burning film medium; Cathode sheets and anode strip are the sandwich of two-layer cathode sheets folder one deck anode strip, are provided with isolated insulation layer between anode strip and cathode sheets; Cathode sheets is comprised of the porous tantalum core, also can be with the burning film medium as insulating barrier on cathode sheets; The structures such as the shell of capacitor, gland are all to consist of the tantalum material; In the surrounding of anode strip and cathode sheets, and be filled with non-solid electrolyte in the porous tantalum core hole of anode strip and cathode sheets, form non solid electrolyte all tantalum capacitor.Application number a kind of manufacture method and capacitor of full tantalum shell tantalum electrolytic capacitor that be 201010147991.8 disclosure of the invention, adopt the encapsulation of cylindrical metal tantalum shell, is air-tight structure, and is monolithic capacitor; It is characterized in that: capacitor is for adopting the capacitor of bolt as mounting means; At first the full tantalum insulator for preparing strap bolt, bolt adopt the metal tantalum pipe to make, and centre has tantalum wire to pass, and sintering has the insulating glass powder between tantalum wire and tantalum bolt, play insulating effect; First bolt is inverted on fixture, then the tantalum cover buckle that six apertures will be arranged is on the pin of six projections of bolt, with laser-beam welding machine or argon arc welding machine,, with six pins welding fusions on the aperture of tantalum lid and bolt, namely completes the making partly of full tantalum insulator; To combine several pieces tantalum anodes and negative electrode packs in cylindrical metal tantalum shell again, and with the welding of the tantalum wire in anodal and bolt, again negative pole and tantalum shell are welded, then add the polytetrafluoro pad to fix, namely obtain bolt connecting type full tantalum shell tantalum electrolytic capacitor of the present invention.Above prior art, be not all adopt with a plurality of anodes one by one corresponding mode of drawing respectively improve product reliability and reduce the product failure risk, can further be improved.
Summary of the invention
For the defect that exists in the existing product design, the present invention aims to provide the anodal lead-out mode of a kind of non solid electrolyte all tantalum capacitor, improves product reliability, reduces the product failure risk.
Technical scheme of the present invention: described high reliability non solid electrolyte all tantalum capacitor, comprise tantalum shell with faucal, electrolyte, with the insulator in tantalum pipe and acid filling hole, with the negative electrode of cathode leg, anode, positive outside wire, negative outside wire and barrier film with anode tap, described anode and negative electrode stack successively, all accompany barrier film between adjacent anode and negative electrode, in the tantalum shell, electrolyte is arranged, all anodes, negative electrode and barrier film together are placed in the tantalum shell, and described insulator sealing is arranged on the faucal of tantalum shell; Lay successively drainage pad, lower gasket, Upper gasket and draining ring on uppermost negative electrode; Described every anode tap passes respectively the tantalum pipe on insulator, with positive outside wire, fixedly docks one by one; Cathode leg docking negative outside wire.
Described tantalum shell, insulator are all to adopt tantalum material processing and fabricating to form, negative electrode and anode are all loose structures repressed by tantalum metal powder and that sintering forms, the mode that adopts electrochemistry to energize all forms the insulating medium layer tantalum pentoxide of one deck densification at anode, cathode surface, the mode parallel combination of stack will be adopted between the anode that form and negative electrode, between anode and negative electrode, the barrier film of folder one deck high temperature-resistant acid-resistant, together be placed in all anodes, negative electrode and barrier film in the tantalum shell.Described anode adopts the combination of multicore parallel way.
Mode by laser edge bonding is connected together insulator edge and tantalum shell edge joint weld, makes its one-tenth as a whole; With the acid filling hole on the laser seal welding insulator.According to design, adopt several anodes just to select the insulator of several cores, each anode pellet capacity is drawn separately, the lead-out wire of every anode is passed insulator tantalum pipe, then cover insulator.Mode by laser edge bonding is connected together insulator edge and tantalum shell edge joint weld, makes its one-tenth as a whole.
Inject electrolyte by the acid filling hole on insulator, with laser welding acid filling hole, make product become a seal.The anode tap that passes the tantalum pipe is fixedly docked several corresponding several positive outside wires of anode tap with positive outside wire.
The manufacture craft of described high reliability non solid electrolyte all tantalum capacitor, comprise the steps:
A, installation negative electrode and anode: be ready to tantalum shell, electrolyte, the insulator with tantalum pipe and acid filling hole, the negative electrode of band lead-in wire, anode, positive outside wire, negative outside wire and the barrier film of band lead-in wire, load onto a slice negative electrode in the tantalum shell bottom of cleaning, cathode leg is close to the tantalum shell and is extended to tantalum shell faucal, at the one or more layers of barrier film of cathode surface tiling, anode is placed on diaphragms, insulate with insulating trip between anode tap and tantalum shell; According to the method described above, put successively negative electrode and anode, anode and negative electrode are superposeed successively, topmost one is negative electrode;
B, lay pad: after installing anode and negative electrode, put successively drainage pad, lower gasket, Upper gasket and draining ring well on uppermost negative electrode;
C, installing insulating: every anode tap is passed insulator tantalum pipe, then cover insulator, the mode by laser edge bonding is connected together insulator edge and tantalum shell edge joint weld, makes its one-tenth as a whole;
D, injection electrolyte: inject electrolyte by the acid filling hole on insulator, make electrolyte be full of the interior gap of tantalum shell, with laser welding acid filling hole, make its sealing;
E, docking positive outside wire: the anode tap that will pass insulator tantalum pipe fixedly docks one by one with positive outside wire, and the just corresponding several positive outside wires of several anode taps are arranged;
F, complete installation:, to connecting cathode leg and negative outside wire, and complete installation on insulator surface.
Compared with the prior art, the present invention draws each anode of multicore tantalum capacitor separately, thus decrease caused the risk of whole product failure because the inner pellet of tantalum electric capacity loses efficacy.Many anodal lead-out modes have kept all properties of existing product, have greatly improved the reliability of product.
Description of drawings
Fig. 1 is non solid electrolyte all tantalum capacitor internal structure schematic diagram of the present invention;
Fig. 2 is non solid electrolyte all tantalum capacitor side structure schematic diagram of the present invention.Wherein: 1, insulator, 2, draining ring, 3, barrier film, 4, insulating trip, 5, negative electrode 6, anode, 7, drainage pad, 8, lower gasket, 9, Upper gasket, 10, positive outside wire, 11, negative outside wire, 12, the tantalum shell.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and specific embodiment.
As depicted in figs. 1 and 2, described high reliability non solid electrolyte all tantalum capacitor, comprise tantalum shell 12 with faucal, electrolyte, with the insulator 1 in tantalum pipe and acid filling hole, with the negative electrode 5 of cathode leg, anode 6, positive outside wire 10, negative outside wire 11 and barrier film 3 with anode tap, described anode 6 and negative electrode 5 stack successively, 5, adjacent anode 6 and negative electrode all accompany barrier film 3, in tantalum shell 12, electrolyte is arranged, all anodes 6, negative electrode 5 and barrier film 3 together are placed in tantalum shell 12, and described insulator 1 sealing is arranged on the faucal of tantalum shell 12; Lay successively drainage pad 7, lower gasket 8, Upper gasket 9 and draining ring 2 on uppermost negative electrode 5; Described every anode tap passes respectively the tantalum pipe on insulator 1, with positive outside wire 10, fixedly docks one by one; Cathode leg docking negative outside wire 11.
Described tantalum shell 12, insulator 1 are all to adopt tantalum material processing and fabricating to form, and described anode 6 adopts the combination of multicore parallel way.
The concrete manufacture craft of described high reliability non solid electrolyte all tantalum capacitor is as follows:
Load onto the negative electrode 5 of a slice in tantalum shell 12 bottoms of cleaning, cathode leg is close to tantalum shell 12 and is extended to tantalum shell 12 faucals, at negative electrode 5 surface tiling one deck barrier films 3, anode 6 is placed on above barrier film 3, insulate with insulating trip 4 between anode tap and tantalum shell 12, the negative pole that is equivalent to tantalum capacitor due to the tantalum shell, must make anodal and the isolation of tantalum shell housing.So, put successively negative electrode and anode, anode and negative pole are superposeed successively., in order to adjust anode and negative electrode whole height, can also suitably increase barrier film quantity.Negative electrode and anode are all loose structures repressed by tantalum metal powder and that sintering forms, and the mode that adopts electrochemistry to energize all forms the insulating medium layer tantalum pentoxide of one deck densification at anode, cathode surface.The oxide-film that cathode surface forms makes tantalum capacitor can bear certain reverse voltage, has the whole tantalum capacitor characteristics.
After installing anode and negative electrode according to design quantity, put into successively drainage pad 7, lower gasket 8, Upper gasket 9 and draining ring 2, every anode tap is passed the tantalum pipe, then cover insulator 1.Mode by laser edge bonding is connected together insulator edge and tantalum shell edge joint weld, makes its one-tenth as a whole.Inject electrolyte by the acid filling hole on insulator 1, make electrolyte be full of the interior gap of tantalum shell.Make product become a seal with laser welding acid filling eyelet welding point.The anode tap that passes the tantalum pipe is fixedly docked several corresponding several positive outside wires 10 of anode tap with positive outside wire.For easy for installation on insulator 1 surface to connecting negative outside wire 11.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all being included in protection scope of the present invention.
Claims (6)
1. high reliability non solid electrolyte all tantalum capacitor, comprise the tantalum shell (12) with faucal, electrolyte, insulator (1) with tantalum pipe and acid filling hole, negative electrode (5) with cathode leg, anode (6) with anode tap, positive outside wire (10), negative outside wire (11) and barrier film (3), described anode (6) and negative electrode (5) stack successively, all accompany barrier film (3) between adjacent anode (6) and negative electrode (5), the tantalum shell has electrolyte in (12), all anodes (6), negative electrode (5) and barrier film (3) together are placed in tantalum shell (12), described insulator (1) sealing is arranged on the faucal of tantalum shell (12), it is characterized in that: lay successively drainage pad (7), lower gasket (8), Upper gasket (9) and draining ring (2) on uppermost negative electrode (5), described every anode tap passes respectively the tantalum pipe on insulator (1), with positive outside wire (10), fixedly docks one by one, cathode leg docking negative outside wire (11).
2. high reliability non solid electrolyte all tantalum capacitor as claimed in claim 1, it is characterized in that: described tantalum shell (12), insulator (1) are all to adopt tantalum material processing and fabricating to form, and negative electrode (5) and anode (6) are all loose structures repressed by tantalum metal powder and that sintering forms.
3. high reliability non solid electrolyte all tantalum capacitor as claimed in claim 1, it is characterized in that: anode (6), negative electrode (5) surface all are formed with one deck insulating medium layer tantalum pentoxide.
4. high reliability non solid electrolyte all tantalum capacitor as claimed in claim 1, is characterized in that: the combination of described anode (6) employing multicore parallel way.
5. high reliability non solid electrolyte all tantalum capacitor as claimed in claim 1, it is characterized in that: the mode by laser edge bonding is connected together insulator (1) edge and tantalum shell (12) edge joint weld, makes its one-tenth as a whole; With the acid filling hole on laser seal welding insulator (1).
6. the manufacture craft of a high reliability non solid electrolyte all tantalum capacitor, comprise the steps:
A, installation negative electrode and anode: be ready to tantalum shell, electrolyte, the insulator with tantalum pipe and acid filling hole, the negative electrode of band lead-in wire, anode, positive outside wire, negative outside wire and the barrier film of band lead-in wire, load onto a slice negative electrode in the tantalum shell bottom of cleaning, cathode leg is close to the tantalum shell and is extended to tantalum shell faucal, at the one or more layers of barrier film of cathode surface tiling, anode is placed on diaphragms, insulate with insulating trip between anode tap and tantalum shell; According to the method described above, put successively negative electrode and anode, anode and negative electrode are superposeed successively, topmost one is negative electrode;
B, lay pad: after installing anode and negative electrode, put successively drainage pad, lower gasket, Upper gasket and draining ring well on uppermost negative electrode;
C, installing insulating: every anode tap is passed insulator tantalum pipe, then cover insulator, the mode by laser edge bonding is connected together insulator edge and tantalum shell edge joint weld, makes its one-tenth as a whole;
D, injection electrolyte: inject electrolyte by the acid filling hole on insulator, make electrolyte be full of the interior gap of tantalum shell, with laser welding acid filling hole, make its sealing;
E, docking positive outside wire: the anode tap that will pass insulator tantalum pipe fixedly docks one by one with positive outside wire, and the just corresponding several positive outside wires of several anode taps are arranged;
F, complete installation:, to connecting cathode leg and negative outside wire, and complete installation on insulator surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310341703.6A CN103400695B (en) | 2013-08-23 | 2013-08-23 | A kind of high reliability non solid electrolyte all tantalum capacitor and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310341703.6A CN103400695B (en) | 2013-08-23 | 2013-08-23 | A kind of high reliability non solid electrolyte all tantalum capacitor and processing technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103400695A true CN103400695A (en) | 2013-11-20 |
| CN103400695B CN103400695B (en) | 2016-08-10 |
Family
ID=49564297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310341703.6A Active CN103400695B (en) | 2013-08-23 | 2013-08-23 | A kind of high reliability non solid electrolyte all tantalum capacitor and processing technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103400695B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916442A (en) * | 2015-06-16 | 2015-09-16 | 北京七一八友益电子有限责任公司 | Combined type high energy composite tantalum capacitor and manufacturing method thereof |
| CN105977028A (en) * | 2016-07-06 | 2016-09-28 | 株洲日望电子科技股份有限公司 | Insulator, high energy tantalum hybrid capacitor and assembly technology of capacitor |
| CN108054013A (en) * | 2017-12-15 | 2018-05-18 | 株洲中电电容器有限公司 | A kind of button-shaped encapsulation tantalum capacitor of band stud |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070115611A1 (en) * | 2005-11-22 | 2007-05-24 | Sanyo Electric Co., Ltd. | Electrolytic capacitor |
| US20080232030A1 (en) * | 2007-03-20 | 2008-09-25 | Avx Corporation | Wet electrolytic capacitor containing a plurality of thin powder-formed anodes |
| CN101339849A (en) * | 2008-08-08 | 2009-01-07 | 株洲宏达电子有限公司 | Non solid electrolyte all tantalum capacitor and preparation thereof |
| CN202940132U (en) * | 2012-10-19 | 2013-05-15 | 李晓梅 | Aluminum shell electrolytic capacitor with guide pins |
-
2013
- 2013-08-23 CN CN201310341703.6A patent/CN103400695B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070115611A1 (en) * | 2005-11-22 | 2007-05-24 | Sanyo Electric Co., Ltd. | Electrolytic capacitor |
| US20080232030A1 (en) * | 2007-03-20 | 2008-09-25 | Avx Corporation | Wet electrolytic capacitor containing a plurality of thin powder-formed anodes |
| CN101339849A (en) * | 2008-08-08 | 2009-01-07 | 株洲宏达电子有限公司 | Non solid electrolyte all tantalum capacitor and preparation thereof |
| CN202940132U (en) * | 2012-10-19 | 2013-05-15 | 李晓梅 | Aluminum shell electrolytic capacitor with guide pins |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916442A (en) * | 2015-06-16 | 2015-09-16 | 北京七一八友益电子有限责任公司 | Combined type high energy composite tantalum capacitor and manufacturing method thereof |
| CN104916442B (en) * | 2015-06-16 | 2017-12-19 | 北京七一八友益电子有限责任公司 | The compound tantalum capacitor of Combined type energetic and its manufacture method |
| CN105977028A (en) * | 2016-07-06 | 2016-09-28 | 株洲日望电子科技股份有限公司 | Insulator, high energy tantalum hybrid capacitor and assembly technology of capacitor |
| CN105977028B (en) * | 2016-07-06 | 2018-05-15 | 株洲日望电子科技股份有限公司 | A kind of assembly technology of high-energy tantalum mixed capacitor and capacitor |
| CN108054013A (en) * | 2017-12-15 | 2018-05-18 | 株洲中电电容器有限公司 | A kind of button-shaped encapsulation tantalum capacitor of band stud |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103400695B (en) | 2016-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104919617A (en) | Button cell with electrode coil | |
| JPWO2013154046A1 (en) | Secondary battery | |
| JP3187576U (en) | Single core with multipolar terminals and lithium battery with the single core | |
| CN103400695A (en) | High-reliability non-solid electrolyte all-tantalum capacitor and manufacturing process thereof | |
| JP2007207920A (en) | Capacitor | |
| CN202282423U (en) | Ring-shaped lithium-ion power battery | |
| CN101339849B (en) | Non solid electrolyte all tantalum capacitor and preparation thereof | |
| RU140924U1 (en) | ELECTROCHEMICAL DEVICE | |
| CN102412063B (en) | High-voltage pulse capacitor used for rapid discharging | |
| CN112490596A (en) | Battery cell, preparation method thereof and single battery | |
| US9437367B2 (en) | Method of manufacturing a winding-type solid electrolytic capacitor package structure without using a lead frame | |
| CN106207276A (en) | Lithium cell core | |
| CN201749785U (en) | Metallized film capacitor | |
| CN104393335A (en) | Lithium ion battery and manufacturing method thereof | |
| CN102064025B (en) | Protective device for solid electrolytic capacitor body | |
| CN204130351U (en) | A kind of new-energy automobile quick charging system electrolytic capacitor | |
| CN209133591U (en) | A kind of high capacity lithium ion battery | |
| CN207441882U (en) | A kind of stacked solid battery | |
| CN218160532U (en) | Laminated lithium ion battery | |
| KR101637760B1 (en) | Cylindrical all-solid battery and a manufacturing method thereof bipolar | |
| CN203150400U (en) | A solid-state aluminum electrolytic capacitor with low series induction | |
| CN109817463A (en) | A kind of electrolytic capacitor | |
| CN210896999U (en) | Ultrahigh voltage metallized film capacitor | |
| CN210668537U (en) | Electrode | |
| US20230085630A1 (en) | Winding type battery cell and winding battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 412011 Zhuzhou, Jiangsu Province, South China Road, East District, No. 1297 Applicant after: ZHUZHOU HONGDA ELECTRONICS CO.RP., LTD. Address before: 412011 Zhuzhou, Jiangsu Province, South China Road, East District, No. 1297 Applicant before: Zhuzhou Hongda Electronics Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |