CN107958785B - Tantalum capacitor anodes and preparation method thereof, solid electrolyte Ta capacitor - Google Patents
Tantalum capacitor anodes and preparation method thereof, solid electrolyte Ta capacitor Download PDFInfo
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- CN107958785B CN107958785B CN201711174611.8A CN201711174611A CN107958785B CN 107958785 B CN107958785 B CN 107958785B CN 201711174611 A CN201711174611 A CN 201711174611A CN 107958785 B CN107958785 B CN 107958785B
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- 239000003990 capacitor Substances 0.000 title claims abstract description 90
- 229910052715 tantalum Inorganic materials 0.000 title claims abstract description 69
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 239000007784 solid electrolyte Substances 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008901 benefit Effects 0.000 claims abstract description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 24
- 239000007921 spray Substances 0.000 claims description 24
- 238000005406 washing Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- 239000011259 mixed solution Substances 0.000 claims description 14
- 238000010792 warming Methods 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 238000009835 boiling Methods 0.000 claims description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- 239000006210 lotion Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 abstract description 10
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000002425 crystallisation Methods 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0029—Processes of manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/022—Electrolytes; Absorbents
- H01G9/025—Solid electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/15—Solid electrolytic capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
A kind of tantalum capacitor anodes and preparation method thereof, solid electrolyte Ta capacitor, tantalum capacitor technical field.The preparation method of high voltage-rated solid electrolyte Ta capacitor anode is to be placed in tantalum fuse to be formed to be formed in liquid and be powered on, and carries out room temperature constant current boost to forming voltage, then heat up and carry out constant-pressure drop stream process；Tantalum fuse is sequentially sprayed, is boiled and is washed, is heat-treated；It after the cooling of tantalum fuse, is placed in be formed in liquid and be powered on, heating carries out benefit formation, and the voltage rating of the tantalum capacitor of high voltage-rated solid electrolyte Ta capacitor anode composition obtained is in 63~100V.Whole preparation process of the present invention is using room temperature boosting high temperature constant pressure, it avoids and prepares the tantalum capacitor anodes formation higher Shi Jinghua or breakdown of voltage, relative to the method-directly high temperature boosting constant pressure for commonly preparing solid electrolyte Ta capacitor anode, it is also further reduced electricity consumption, reduces production cost.
Description
Technical field
The present invention relates to tantalum capacitor technical fields, and in particular to a kind of tantalum capacitor anodes and preparation method thereof, solid
Body electrolyte Ta capacitor.
Background technique
Solid electrolyte Ta capacitor is to be succeeded in developing first by AT&T Labs, the U.S. for 1956, its performance is excellent
It is different, it is product small in size in all capacitors and that larger capacity can be reached.Solid electrolyte Ta capacitor is widely used in
Mobile communication, programme-controlled exchange, laptop, palm PC, e-commerce, computer, to shoot with video-corder dual-purpose machine, automotive electronics etc. small
The surface-mounting equipment of type complete machine electronic equipment, while being also employed in military communication, aerospace etc..With military equipment
The raising of line voltage distribution, more stringent requirements are proposed for resistance to pressure and reliability to capacitor.Solid electrolyte Ta capacitor master
It to be made of tantalum capacitor anodes and cathode, wherein tantalum capacitor anodes are the key component for determining tantalum capacitor performance, tantalum electricity
Container anode is usually that tantalum fuse is passed through electrochemical treatments, its surface is made to form working media film and be formed.
The voltage rating of common solid electrolyte Ta capacitor will be prepared usually in 50V or so than this on the market at present
The solid electrolyte Ta capacitor of kind tantalum capacitor more high voltage-rated must increase the formation voltage of tantalum capacitor anodes, cause
The size of tantalum fuse increases, but the problem of bringing simultaneously is the breakdown voltage that can reduce tantalum fuse, so that preparing tantalum capacitor
Tantalum fuse easily crystallization even punctures when anode, and the tantalum capacitor anodes leakage current after resulting in is bigger than normal.
Therefore more efficiently method is explored, is had become with preparing the solid electrolyte Ta capacitor anode of high voltage-rated
For an important trend.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation method of high voltage-rated solid electrolyte Ta capacitor anode, solutions
The easily crystallization or even the problem of puncture certainly when preparation forms the higher tantalum capacitor anodes of voltage, is made high voltage-rated solid
Electrolyte Ta capacitor anode.
Another object of the present invention is to provide a kind of high voltage-rated solid electrolyte Ta capacitor anode, it is suitable for
Solid electrolyte Ta capacitor of the voltage rating between 63~100V.
Another object of the present invention is to provide a kind of high voltage-rated solid electrolyte Ta capacitor, voltage rating is
63~100V.
The present invention solves its technical problem and adopts the following technical solutions to realize.
The present invention proposes a kind of preparation method of high voltage-rated solid electrolyte Ta capacitor anode comprising following step
It is rapid:
Phosphoric acid and ethylene glycol are added in water, and circulates mixed solution, and the conductance of mixed solution is measured under room temperature
Rate is 0.5 × 103~9.0 × 103μ S/cm, obtains forming liquid；
Tantalum fuse to be formed is placed in be formed in liquid and be powered on, carries out room temperature constant current boost to forming voltage,
It is warming up to 40~100 DEG C of progress constant-pressure drop stream processes again；
The tantalum fuse terminated will be formed sequentially to be sprayed, boil and wash, be heat-treated；
After the tantalum fuse that heat treatment is terminated is cooling, be placed in be formed in liquid and be powered on, be warming up to 40~100 DEG C into
Row, which is mended, to be formed to get high voltage-rated solid electrolyte Ta capacitor anode is arrived.
Further, in a preferred embodiment of the present invention, the 10~30min of time for circulating mixed solution.
Further, in a preferred embodiment of the present invention, when carrying out room temperature constant current boost, current density control for 5~
120mA/g, time are 0.5~12h；The time of constant-pressure drop stream process is 0.5~12h.
Further, in a preferred embodiment of the present invention, tantalum fuse is sprayed using spray liquid, spray liquid be go from
Sub- water, spray time are 2~5min.
Further, in a preferred embodiment of the present invention, tantalum fuse boil washing using boiling washing lotion, boil washing lotion be go from
Sub- water, boiling the temperature washed is 80~100 DEG C, boils and washes the time as 40~70min.
Further, in a preferred embodiment of the present invention, the temperature of heat treatment is 330~380 DEG C, and the time of heat treatment is
25~30min.
Further, in a preferred embodiment of the present invention, cooling means are as follows: blower fan is cooling at normal temperature, cooling time
For 10~20min.
Further, in a preferred embodiment of the present invention, when benefit is formed, current density control is 5~120mA/g, time
For 0.5~6h.
The present invention proposes a kind of high voltage-rated solid electrolyte Ta capacitor anode, is using the above-mentioned specified electricity of height
The preparation method of solid electrolyte Ta capacitor anode is pressed to be made.
The present invention proposes a kind of high voltage-rated solid electrolyte Ta capacitor comprising above-mentioned high voltage-rated solid
Electrolyte Ta capacitor anode, the voltage rating of solid electrolyte Ta capacitor are 63~100V.
The beneficial effect of tantalum capacitor anodes of the embodiment of the present invention and preparation method thereof, solid electrolyte Ta capacitor
Be: the preparation method of the high voltage-rated solid electrolyte Ta capacitor anode of the embodiment of the present invention be in water addition phosphoric acid and
Ethylene glycol obtains forming liquid；Tantalum fuse to be formed is placed in be formed in liquid and be powered on, carries out room temperature constant current boost extremely
Voltage is formed, then heats up and carries out constant-pressure drop stream process；The tantalum fuse terminated will be formed sequentially to be sprayed, boil and wash, be heat-treated；It will
It after the tantalum fuse cooling that heat treatment terminates, is placed in be formed in liquid and be powered on, heating, which mend, to be formed to get specified to height
Voltage solid electrolyte Ta capacitor anode, the preparation method solve the pole when preparation forms voltage higher tantalum capacitor anodes
The problem of easy crystallization even punctures, is made high voltage-rated solid electrolyte Ta capacitor anode.High voltage-rated obtained is solid
The voltage rating of the tantalum capacitor of body electrolyte Ta capacitor anode composition is in 63~100V.
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Have below to tantalum capacitor anodes of the embodiment of the present invention and preparation method thereof, solid electrolyte Ta capacitor
Body explanation.
The embodiment of the present invention provides a kind of preparation method of high voltage-rated solid electrolyte Ta capacitor anode comprising
Following steps:
(1) prepare form liquid: to formed slot in be filled to 1/3~1/2 volume when, toward formed slot water in addition phosphoric acid with
Ethylene glycol, and circulate mixed solution, circulating the time is generally 10~30min, preferably 20min, surveys under room temperature
The conductivity for obtaining mixed solution is 0.5 × 103~9.0 × 103μ S/cm, preferably 0.5 × 103~7.0 × 103μ S/cm, obtains
Form liquid.The purpose for adding ethylene glycol is to improve the flash over voltage of tantalum fuse, plays during being subsequently formed and inhibits oxidation film brilliant
The effect of change.
(2) it is formed: tantalum fuse to be formed is placed in the formation liquid to be formed in slot and is powered on, it is permanent to carry out room temperature
Stream boosts to form voltage, current density control be 5~120mA/g, preferably 5~100mA/g, more preferably 5~90mA/g,
Time is 0.5~12h, preferably 0.5~10h, more preferably 0.5~9h；40~100 DEG C of progress constant-pressure drops are warming up to again to flow through
Journey, time are 0.5~12h.
(3) it sprays: the tantalum fuse terminated will be formed and be put into spray groove, tantalum fuse is sprayed using spray liquid, is sprayed
Liquid is generally deionized water, and spray time is 2~5min.
(4) it boils and washes: the tantalum fuse that spray terminates being put into and is boiled in washing trough, tantalum fuse boil washing using washing lotion is boiled, is boiled
Washing lotion is generally deionized water, and boiling the temperature washed is 80~100 DEG C, boils and washes the time as 40~70min.
(5) it being heat-treated: the tantalum fuse for washing end will be boiled is put into baking oven and be heat-treated, the temperature of heat treatment is 330~
380 DEG C, the time of heat treatment is 25~30min.
(6) mend and formed: the tantalum fuse after heat treatment is cooling, and usually blower fan cooling, cooling time are at normal temperature
10~20min, then be placed in the formation liquid to be formed in slot and power on, it is warming up to 40~100 DEG C and carries out benefit formation, electric current
Density domination be 5~120mA/g, the time be 0.5~6h to get arrive high voltage-rated solid electrolyte Ta capacitor anode.It is whole
A preparation process boosts to form voltage high-temperature constant pressure is formed and mended to be formed again using room temperature, not only avoids and prepares tantalum electricity
Container anode forms voltage compared with Gao Shiyi crystallization or breakdown problem, moreover it is possible to be further reduced electricity consumption, reduce production cost.
The embodiment of the present invention also provides a kind of high voltage-rated solid electrolyte Ta capacitor anode, is using above-mentioned
The preparation method of high voltage-rated solid electrolyte Ta capacitor anode is made.
The embodiment of the present invention also provides a kind of high voltage-rated solid electrolyte Ta capacitor comprising above-mentioned height is specified
Voltage solid electrolyte Ta capacitor anode, the voltage rating of solid electrolyte Ta capacitor are 63~100V.
Feature and performance of the invention are described in further detail with reference to embodiments.
Embodiment 1
It is according to following preparation process the present embodiment provides a kind of high voltage-rated solid electrolyte Ta capacitor anode
It is made:
(1) it prepares and forms liquid: when being filled to 1/3 volume into formation slot, adding phosphoric acid and ethylene glycol in slot toward being formed, make
The conductivity that mixed solution is measured after mixed solution circulates 10min, under room temperature is 6.5 × 103μ S/cm, obtains forming liquid.
(2) it is formed: tantalum fuse to be formed is placed in the formation liquid to be formed in slot and is powered on, it is permanent to carry out room temperature
Stream boosts to form voltage, and current density control is 60mA/g, time 2h；Then 75 DEG C of progress constant-pressure drops are warming up to flow through
Journey, time 6h.
(3) it sprays: the tantalum fuse terminated will be formed and be put in spray groove with deionized water spray 2min.
(4) it boils and washes: the tantalum fuse that spray terminates being put into and boil in washing trough washing equipped with 80 DEG C of boiling for deionized water
50min。
(5) it is heat-treated: the tantalum fuse for washing end will be boiled is put into baking oven and be heat-treated, temperature is 330 DEG C, and the time is
25min。
(6) mend and formed: the tantalum fuse that heat treatment is terminated after the cooling 10min of blower fan, is placed in be formed on slot at normal temperature,
Power on and be warming up to 65 DEG C and carry out benefit formation, control current density is that high voltage-rated can be obtained after handling 3h in 55mA/g
Solid electrolyte Ta capacitor anode.
Embodiment 2
It is according to following preparation process the present embodiment provides a kind of high voltage-rated solid electrolyte Ta capacitor anode
It is made:
(1) it prepares and forms liquid: when being filled to 1/2 volume into formation slot, adding phosphoric acid and ethylene glycol in slot toward being formed, make
The conductivity that mixed solution is measured after mixed solution circulates 30min, under room temperature is 4.9 × 103μ S/cm, obtains forming liquid.
(2) it is formed: tantalum fuse to be formed is placed in the formation liquid to be formed in slot and is powered on, it is permanent to carry out room temperature
Stream boosts to form voltage, and current density control is 80mA/g, time 1.5h；Then 65 DEG C of progress constant-pressure drops are warming up to flow through
Journey, time 5h.
(3) it sprays: the tantalum fuse formed being put in spray groove and sprays 5min with deionized water.
(4) it boils and washes: the tantalum fuse that spray terminates being put into and boil in washing trough washing equipped with 90 DEG C of boiling for deionized water
60min。
(5) it is heat-treated: the tantalum fuse for washing end will be boiled is put into baking oven and be heat-treated, temperature is 380 DEG C, and the time is
30min。
(6) it mends and is formed: after the tantalum fuse that heat treatment is terminated cools down 20min at normal temperature, being placed in be formed on slot, connect electricity
Source is warming up to 65 DEG C and carries out benefit formation, and control current density is 45mA/g, and after handling 1h, high voltage-rated solid electricity can be obtained
Solve matter tantalum capacitor anodes.
Embodiment 3
It is according to following preparation process the present embodiment provides a kind of high voltage-rated solid electrolyte Ta capacitor anode
It is made:
(1) it prepares and forms liquid: when being filled to 1/2 volume into formation slot, adding phosphoric acid and ethylene glycol in slot toward being formed, make
The conductivity that mixed solution is measured after mixed solution circulates 20min, under room temperature is 4.0 × 103μ S/cm, obtains forming liquid.
(2) it is formed: tantalum fuse to be formed is placed in the formation liquid to be formed in slot and is powered on, it is permanent to carry out room temperature
Stream boosts to form voltage, and current density control is 100mA/g, time 1h；Then 65 DEG C of progress constant-pressure drops are warming up to flow through
Journey, time 5h.
(3) it sprays: the tantalum fuse formed being put in spray groove and sprays 3min with deionized water.
(4) it boils and washes: the tantalum fuse that spray terminates being put into and boil in washing trough washing equipped with 100 DEG C of boiling for deionized water
40min。
(5) it is heat-treated: the tantalum fuse for washing end will be boiled is put into baking oven and be heat-treated, temperature is 350 DEG C, and the time is
28min。
(6) it mends and is formed: after the tantalum fuse that heat treatment is terminated cools down 15min at normal temperature, being placed in be formed on slot, connect electricity
Source is warming up to 85 DEG C and carries out benefit formation, and control current density is that high voltage-rated solid can be obtained after handling 1.5h in 65mA/g
Electrolyte Ta capacitor anode.
The performance that resulting product is prepared for the verifying embodiment of the present invention will obtain in embodiment 1, embodiment 2 and embodiment 3
To high voltage-rated solid electrolyte Ta capacitor anode randomly select 5 samples respectively, it is (specified in 1.2 times of voltage ratings
Voltage be 63~100V) under carry out electric performance test, the electricity of each embodiment high voltage-rated solid electrolyte Ta capacitor anode
Capacity and leakage current parameter are as follows:
The electric performance test result of 1 high voltage-rated solid electrolyte Ta capacitor anode of table
From table 1 it follows that high voltage-rated solid electrolyte made from preparation method using the embodiment of the present invention
The capacitance and leakage current of tantalum capacitor anodes are able to satisfy technical parameter requirement.
In conclusion the preparation method of the high voltage-rated solid electrolyte Ta capacitor anode of the embodiment of the present invention solves
The easily crystallization or even the problem of puncture when preparation forms the higher tantalum capacitor anodes of voltage, is made high voltage-rated solid electricity
Solve matter tantalum capacitor anodes；High voltage-rated solid electrolyte Ta capacitor anode obtained be suitable for voltage rating 63~
Solid electrolyte Ta capacitor between 100V；The voltage rating of the solid electrolyte Ta capacitor of composition is 63~100V.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.Reality of the invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (10)
1. a kind of preparation method of high voltage-rated solid electrolyte Ta capacitor anode, which is characterized in that it includes following step
It is rapid:
Phosphoric acid and ethylene glycol are added in water, and circulates mixed solution, and the conductance of the mixed solution is measured under room temperature
Rate is 0.5 × 103~9.0 × 103μ S/cm, obtains forming liquid；
Tantalum fuse to be formed is placed in the formation liquid and is powered on, carries out room temperature constant current boost to forming voltage,
It is warming up to 40~100 DEG C of progress constant-pressure drop stream processes again；
The tantalum fuse terminated will be formed sequentially to be sprayed, boil and wash, be heat-treated；
After the tantalum fuse that heat treatment is terminated is cooling, is placed in the formation liquid and powers on, be warming up to 40~100 DEG C into
Row, which is mended, to be formed to get high voltage-rated solid electrolyte Ta capacitor anode is arrived.
2. the preparation method of high voltage-rated solid electrolyte Ta capacitor anode according to claim 1, feature exist
In the 10~30min of time for circulating the mixed solution.
3. the preparation method of high voltage-rated solid electrolyte Ta capacitor anode according to claim 1, feature exist
In when carrying out room temperature constant current boost, current density control is 5~120mA/g, and the time is 0.5~12h；Constant-pressure drop stream process
Time is 0.5~12h.
4. the preparation method of high voltage-rated solid electrolyte Ta capacitor anode according to claim 1, feature exist
In using spray liquid to tantalum fuse progress spray process, spray liquid is deionized water, and spray time is 2~5min.
5. the preparation method of high voltage-rated solid electrolyte Ta capacitor anode according to claim 1, feature exist
In boil washing to tantalum fuse using washing lotion is boiled, boiling washing lotion is deionized water, and boiling the temperature washed is 80~100 DEG C, boils and washes the time
For 40~70min.
6. the preparation method of high voltage-rated solid electrolyte Ta capacitor anode according to claim 1, feature exist
In the temperature of heat treatment is 330~380 DEG C, and the time of heat treatment is 25~30min.
7. the preparation method of high voltage-rated solid electrolyte Ta capacitor anode according to claim 1, feature exist
In cooling means are as follows: blower fan is cooling at normal temperature, and cooling time is 10~20min.
8. the preparation method of high voltage-rated solid electrolyte Ta capacitor anode according to claim 1, feature exist
In when benefit is formed, current density control is 5~120mA/g, and the time is 0.5~6h.
9. a kind of high voltage-rated solid electrolyte Ta capacitor anode, which is characterized in that it is using such as claim 1 to 8
Any one of described in high voltage-rated solid electrolyte Ta capacitor anode preparation method be made.
10. a kind of high voltage-rated solid electrolyte Ta capacitor, which is characterized in that it includes as claimed in claim 9 high
Voltage rating solid electrolyte Ta capacitor anode, the voltage rating of the solid electrolyte Ta capacitor are 63~100V.
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| CN114050056A (en) * | 2021-11-18 | 2022-02-15 | 中国振华(集团)新云电子元器件有限责任公司(国营第四三二六厂) | Tantalum capacitor anode and preparation method thereof, and tantalum capacitor and preparation method thereof |
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| CN101354965B (en) * | 2008-09-16 | 2011-03-16 | 中国振华（集团）新云电子元器件有限责任公司 | Method for preparing high-temperature electrolytic capacitor anodized film |
| CN104008899B (en) * | 2014-05-12 | 2016-09-07 | 中国振华（集团）新云电子元器件有限责任公司 | A kind of high energy width temperature tantalum capacitor preparation method |
| CN106548870B (en) * | 2015-09-21 | 2018-07-03 | 中国振华（集团）新云电子元器件有限责任公司 | It is a kind of improve tantalum capacitor breakdown voltage by film method |
| CN105405655B (en) * | 2015-12-09 | 2018-06-29 | 中国振华（集团）新云电子元器件有限责任公司 | A kind of non-solid tantalum electrolytic capacitor cathode preparation method |
| CN106206029B (en) * | 2016-08-14 | 2018-06-05 | 中国振华（集团）新云电子元器件有限责任公司 | A kind of low temperature forming method of chip tantalum capacitor anode |
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