CN106128803A - The preparation method of button electrode and components and parts and the preparation method with this button electrode - Google Patents
The preparation method of button electrode and components and parts and the preparation method with this button electrode Download PDFInfo
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- CN106128803A CN106128803A CN201610795020.1A CN201610795020A CN106128803A CN 106128803 A CN106128803 A CN 106128803A CN 201610795020 A CN201610795020 A CN 201610795020A CN 106128803 A CN106128803 A CN 106128803A
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- button
- electrode
- preparation
- pole piece
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Abstract
The invention belongs to capacitor manufacturing technology field, particularly to preparation method and components and parts and the preparation method with this button electrode of a kind of button electrode.The preparation method of this kind of button electrode first prepares electrode dry powder, electrode dry powder is compressing through the compression shock of twice, the pole piece that this mode obtains both can ensure that the homogeneity of quality, it is avoided that again owing to the when of main pressure impact, pole piece causes cracking phenomena because instantaneous pressure is excessive, it is ensured that the molding effect of pole piece.Using the button components and parts prepared by button electrode prepared by the present invention, the concordance at the performance of capacity, the decline of internal resistance and product has all obtained obvious improvement, and the concordance of its product is significantly larger than tradition button components and parts.
Description
Technical field
The invention belongs to capacitor manufacturing technology field, particularly to the preparation method of a kind of button electrode with have this button
The components and parts of formula electrode and preparation method.
Background technology
Button components and parts, refer to overall dimensions as the components and parts of a little button, because its volume is little, easy to use, therefore respectively
Plant the application in miniature electronic product relatively broad.Common button components and parts generally comprise positive pole housing, negative pole housing, positive pole
Sheet, negative plate, barrier film, sealing ring and electrolyte.Wherein, pole piece plays decisive role to the performance of whole button components and parts.
Traditional button components and parts make and include the operations such as coating, roll-in, punching and baking, and the processing technology of this pole piece is more numerous
Trivial, greatly reduce production efficiency.
For solving the problems referred to above, Authorization Notice No. is that the application for a patent for invention of CN104252975A discloses a kind of manufacture and buckles
The method of formula electrode of super capacitor, the mixed-powder material that the method for this kind of button electrode of super capacitor is first prepared, then
In dusty material, add binding agent make pureed material, finally pureed material is laminated.The pureed material of this kind of method
In nipping process, middle stress differs with the stressing conditions on both sides, and this can cause final homogeneity of product poor；
And the pole piece of disc is after roll-in and baking dehydration, pole piece can become oval, and this pole piece is on the one hand by shell
The restriction of body, on the other hand easily there is deviation in the position of both positive and negative polarity, limits the performance of pole piece capacity.Additionally, current button
Between components and parts pole piece and housing, major part is connected by simple contact surface, the button components and parts that this mode combines
Contact internal resistance is bigger than normal, and capacity plays the most undesirable.
Comprehensive above discussion, exploitation one can ensure product consistency, and its capacity and internal resistance can be made again to obtain fully
Improvement, the most also there is the pole piece production method of consecutive production, become the problem that the industry needs solution badly.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of button electrode and preparation method thereof.
For achieving the above object, the invention provides the preparation method of button electrode, it is characterised in that:
Step 1, by activated carbon, acetylene black powder mix homogeneously, it is thus achieved that mixed-powder material；
Step 2, is dissolved in binding agent in solvent, it is thus achieved that binder solution；
Step 3, mixed-powder step 1 obtained adds in binding agent, it is thus achieved that material blends；
Step 4, material blends step 3 obtained is dried, sieves, it is thus achieved that electrode dry powder；
Step 5, loads electrode dry powder in diel, carries out precompressed and impacts preliminary for pole piece pre-molding, precompressed amount
Less than or equal to 60%；
Step 6, carries out main pressure impact to the pole piece of preliminary pre-molding, obtains molding pole piece after punch forming；
Step 7, is vacuum dried molding pole piece, it is thus achieved that button electrode.
Further, in step 1, activated carbon is mixed by magnetic stirrer with acetylene black powder, mixing time 5-8 hour,
Speed of agitator is 15Hz.
Further, in step 2, binding agent is the ptfe emulsion of solid content 58-62%.
Further, solvent is deionized water.
Further, in step 4, the baking temperature of material blends is 65-75 DEG C, 20-30 hour drying time, material
Mixture crosses 150 mesh and with upper screen cloth.
Further, in step 7, baking temperature is 65-75 DEG C, 20-30 hour drying time.
A kind of button components and parts, including housing and conductive current collector, it is characterised in that: also include described in above-mentioned any one
Button electrode, this button electrode is arranged in housing, and this button electrode is connected with housing by conductive current collector.
The preparation method of button components and parts, it is characterised in that preparation button electrode described in claim 7, described conduction
Collector is reticulated collectors, specifically comprises the following steps that
Step 1, in the middle of two panels button electrodes face compacting to reticulated collectors, the diameter of this reticulated collectors is more than
The diameter of pole piece, button electrode are coaxially arranged with reticulated collectors；
Step 2, is welded in part exposed for reticulated collectors on housing；
Step 3, is assembled into components and parts after vacuum drying treatment.
Optimize, before the welding reticulated collectors of step 2, between housing and button pole piece, cover one layer of conduction
Glue.
Optimize, before button pole piece compacting to reticulated collectors, cover one layer of conducting resinl on reticulated collectors surface.
From above-mentioned, the present invention is described, there is advantages that button electrode is again through the pressure of twice
Power impact is compressing, and the pole piece that this mode obtains both can ensure that the homogeneity of quality, is avoided that again due to main pressure impact
When pole piece cause cracking phenomena because instantaneous pressure is excessive, it is ensured that the molding effect of pole piece.The present invention is used to prepare
Button components and parts prepared by button electrode, the concordance at the performance of capacity, the decline of internal resistance and product has all obtained bright
Aobvious improvement, the concordance of its product is significantly larger than tradition button components and parts.
Accompanying drawing explanation
Fig. 1 is the structural representation of dress decompressor.
Fig. 2 is specific embodiment one button component structure schematic diagram.
Fig. 3 is specific embodiment two button component structure schematic diagram.
Fig. 4 is specific embodiment three button component structure schematic diagram.
Fig. 5 is specific embodiment four button component structure schematic diagram.
Fig. 6 is specific embodiment five button component structure schematic diagram.
Detailed description of the invention
With reference to shown in Fig. 1, below by way of detailed description of the invention, the invention will be further described.
The preparation method of button electrode, it is characterised in that:
Step 1, is mixed activated carbon, acetylene black powder by magnetic stirrer, mixing time 5-8 hour, speed of agitator
For 15Hz, it is thus achieved that mixed-powder material；
Step 2, is dissolved in binding agent in solvent, it is thus achieved that binder solution, and wherein binding agent is the poly-of solid content 58-62%
Tetrafluoroethene emulsion, solvent is deionized water；
Step 3, mixed-powder step 1 obtained adds in binding agent, it is thus achieved that material blends；
Step 4, material blends step 3 obtained is dried, sieves, it is thus achieved that electrode dry powder, optimization, is dried temperature
Degree is for 65-75 DEG C, and 20-30 hour drying time, material blends crosses 150 mesh and with upper screen cloth；
Step 5, loads electrode dry powder in diel, carries out precompressed and impacts preliminary for pole piece pre-molding, precompressed amount
Less than or equal to 60%；
Step 6, carries out main pressure impact to the pole piece of preliminary pre-molding, obtains molding pole piece after punch forming；
Step 7, is vacuum dried molding pole piece, and baking temperature is 65-75 DEG C, 20-30 hour drying time, it is thus achieved that button
Electrode.
Specific embodiment 1:
Use chooses to install decompressor 100 button type electrode and is processed, and rotary punching device 100 includes rotating disk 101, material
Groove 102, feeding device 103, prepressing device 104, main pressure device 105, drawing mechanism 106 and clearing apparatus 107；
Step 1, is mixed 42.5g activated carbon, 5.0g acetylene black powder by magnetic stirrer, mixing time 5-8 hour,
Speed of agitator is 15Hz, it is thus achieved that mixed-powder material；
Step 2, takes 4.2g 60% ptfe emulsion and is dissolved in 150mL deionized water, and utilize magnetic stirring apparatus to stir
Mix uniformly, it is thus achieved that binder solution；
Step 3, mixed-powder step 1 obtained adds in binding agent, utilizes magnetic stirrer 24h, obtain electricity
Pole material blends；
Step 4, material blends step 3 obtained puts in convection oven and is dried, and baking temperature is 70 DEG C, place
The reason time is 24h, then sieves with 150 eye mesh screens, it is thus achieved that described electrode dry powder, and electrode dry powder loads in hopper 102；
Step 5, electrode dry powder loads in diel through feeding device 103, and the diameter of diel is 12 ±
0.5mm, the degree of depth is 3 ± 0.1mm, and electrode dry powder loading is 43.0mg, and rotating disk 101 rotates and rotates mould to precompressed work
Position, prepressing device 104 carries out precompressed to be impacted preliminary for pole piece pre-molding, and precompressed amount is 54%；
Step 6, mould is rotated to main pressure station by rotating disk 101, and the pole piece of preliminary pre-molding is entered by main pressure device 105
The main pressure of row is impacted, and the pressure of main pressure impact is determined by the compacted density of material, and the compacted density of the present embodiment electrode material is
0.47g/cm3, the main pressure surge of its correspondence is 10MPa, and the punching press time is 5s, and obtaining diameter after punch forming is 12
The molding pole piece that ± 0.3mm, thickness are 800 ± 3um, quality is 43.0 ± 0.5mg, after main pressure completes, rotating disk 101 is by mould
Rotating to discharging station, the molding pole piece in mould is derived by the sucker of drawing mechanism, and mould is rotated to cleaning by rotating disk 101
Station, clearing apparatus carries out dust suction process to mould, returns step 5；
Step 7, to the molding pole piece vacuum drying obtained through step 6, baking temperature 70 DEG C, 20h drying time, it is thus achieved that button
Formula electrode.
Specific embodiment 2:
Its step 1 to 4, step 7 all identical with specific embodiment one, do not repeat them here；
Step 5, electrode dry powder loads in diel through feeding device 103, and the diameter of diel is 12 ±
0.5mm, the degree of depth is 3 ± 0.1mm, and electrode dry powder loading is 21.5mg, and rotating disk 101 rotates and rotates mould to precompressed work
Position, prepressing device 104 carries out precompressed to be impacted preliminary for pole piece pre-molding, and precompressed amount is 54%；
Step 6, mould is rotated to main pressure station by rotating disk 101, and the pole piece of preliminary pre-molding is entered by main pressure device 105
The main pressure of row is impacted, and the pressure of main pressure impact is determined by the compacted density of material, and the compacted density of the present embodiment electrode material is
0.47g/cm3, the main pressure surge of its correspondence is 10MPa, and the punching press time is 5s, and obtaining diameter after punch forming is 12
The molding pole piece that ± 0.3mm, thickness are 400 ± 3um, quality is 21.5 ± 0.5mg, after main pressure completes, rotating disk 101 is by mould
Rotating to discharging station, the molding pole piece in mould is derived by the sucker of drawing mechanism, and mould is rotated to cleaning by rotating disk 101
Station, clearing apparatus carries out dust suction process to mould, returns step 5.
A kind of button components and parts, including housing 1, conductive current collector, button electrode, NKK type diaphragm paper 4 and sealing ring 5, should
It is connected with housing 1 in button electrode is arranged at housing as positive and negative electrode and by conductive current collector, the button electrode of positive and negative electrode
Between separated by NKK type diaphragm paper 4, sealing ring 5 is by the clearance seal in housing.
Specific embodiment one:
With reference to shown in Fig. 2, button components and parts, including housing 1, conductive current collector 2a, button electrode 3a, NKK type diaphragm paper 4
With sealing ring 5, conductive current collector 2a is electroconductive elastic sheet, the diameter that button electrode 3 selects specific embodiment 1 to prepare is 12 ±
0.3mm, thickness are 800 ± 3um, quality is that the button electrode of 43.0 ± 0.5mg is as positive and negative electrode, housing 1 and button electrode 3
Between connect with electroconductive elastic sheet, positive and negative button electrode centre NKK type diaphragm paper 4 separates.
Specific embodiment two:
With reference to shown in Fig. 3, button components and parts, including housing 1, conductive current collector 2b, button electrode 3a, NKK type diaphragm paper 4
With sealing ring 5, the diameter that button components and parts conductive current collector 2 conducting resinl 2b, button electrode 3a select specific embodiment 1 to prepare is big
Little 12 ± the 0.3mm of being, thickness are 800 ± 3um, quality is that the molding pole piece of 43.0 ± 0.5mg is as positive and negative electrode, housing 1 and button
Connecting with conducting resinl between formula electrode 3, positive and negative button electrode centre NKK type diaphragm paper 4 is separately.
Specific embodiment three:
With reference to shown in Fig. 4, button components and parts, including housing 1, conductive current collector 2c, button electrode 3b, NKK type diaphragm paper 4
With sealing ring 5, conductive current collector 2 is a diameter of 15 ± 0.5mm reticulated collectors 2c, and button electrode 3 selects specific embodiment 2 to make
The molding pole piece that standby diameter is 12 ± 0.3mm, thickness is 400 ± 3um, quality is 21.5 ± 0.5mg, positive and negative button
In the middle of electrode with NKK type diaphragm paper 4 separately；
The preparation method of this kind of button components and parts is as follows:
Step 1, suppresses to reticulated collectors 2c face-to-face by two panels button electrode 3, button electrode and netted afflux
Body 2c is coaxially arranged；
Step 2, is welded in part exposed for reticulated collectors 2c on housing 1；
Step 3, vacuum drying is assembled into components and parts after being dried 70 DEG C of process 20h.
Specific embodiment four:
With reference to shown in Fig. 5, select the housing 1 identical with specific embodiment three, conductive current collector 2c, button electrode 3b, NKK
Type diaphragm paper 4 and sealing ring 5；
The preparation method of this kind of button components and parts is as follows:
Step 1, suppresses to reticulated collectors 2c face-to-face by two panels button electrode 3, button electrode and netted afflux
Body 2c is coaxially arranged；
Step 2, covers one layer of conducting resinl 2b, by part exposed for reticulated collectors 2c between housing 1 and button pole piece 3
It is welded on housing 1；
Step 3, vacuum drying is assembled into components and parts after being dried 70 DEG C of process 20h.
Specific embodiment five:
With reference to shown in Fig. 6, button components and parts, select the housing 1 identical with specific embodiment three, conductive current collector 2c, button
Formula electrode 3b, NKK type diaphragm paper 4 and sealing ring 5；
The preparation method of this kind of button components and parts is as follows:
Step 1, covers one layer of conducting resinl 2b, suppresses two panels button electrode 3 to net face-to-face on reticulated collectors surface
In the middle of shape collector 2c, button electrode is coaxially arranged with reticulated collectors 2c；
Step 2, the exposed part of reticulated collectors 2c is welded on housing 1；
Step 3, vacuum drying is assembled into components and parts after being dried 70 DEG C of process 20h.
Reference examples:
In order to compare further, according to traditional technique, the electrode material mixture that specific embodiment 1 obtains is made directly
Footpath is the pole piece of 12 ± 0.5mm, is assembled into button components and parts.
Experimental analysis:
Prepare the chance sample 50 of the button components and parts of above-described embodiment respectively, test its capacity, internal resistance, and to product
Concordance be analyzed.Each group of test is calculated respectively meansigma methods, and it is consistent to utilize variance or standard deviation to weigh product
Property, obtain the experimental data synopsis shown in table 1.
Table 1 experimental data synopsis
Contrast reference examples and embodiment one, two understand, button electrode moulding effect prepared by the method using the present invention to provide
Fruit is good, and quality is homogeneous, utilizes the button components and parts that this pole piece assembles out, and the concordance of its product is significantly larger than tradition
Button pole piece.
Contrast reference examples and embodiment three, four, five understand, and suppress described button electrodes face to reticulated collectors
Centre, and be soldered on button housing, then it is assembled into button components and parts.The button components and parts ratio obtained in traditional method,
The concordance of the performance of its capacity, the decline of internal resistance and product is all available significantly to be improved.Improvement one side of these performances
Face derives from and obtains pole piece molding effect well by described method, and quality is homogeneous, is on the other hand then due to molding pole piece face
Opposite compacting further improves capacity and the internal resistance of button pole piece to reticulated collectors.
Above are only a specific embodiment of the present invention, but the design concept of the present invention is not limited thereto, all profits
With this design, the present invention is carried out the change of unsubstantiality, the behavior invading scope all should be belonged to.
Claims (10)
1. the preparation method of button electrode, it is characterised in that:
Step 1, by activated carbon, acetylene black powder mix homogeneously, it is thus achieved that mixed-powder material；
Step 2, is dissolved in binding agent in solvent, it is thus achieved that binder solution；
Step 3, mixed-powder step 1 obtained adds in binding agent, it is thus achieved that material blends；
Step 4, material blends step 3 obtained is dried, sieves, it is thus achieved that electrode dry powder；
Step 5, loads electrode dry powder in diel, carries out precompressed and impacts preliminary for pole piece pre-molding, and precompressed amount is less than
Equal to 60%；
Step 6, carries out main pressure impact to the pole piece of preliminary pre-molding, obtains molding pole piece after punch forming；
Step 7, is vacuum dried molding pole piece, it is thus achieved that button electrode.
The preparation method of button electrode the most according to claim 1, it is characterised in that: activated carbon and second in described step 1
Acetylene black powder is mixed by magnetic stirrer, and mixing time 5-8 hour, speed of agitator are 15Hz.
The preparation method of button electrode the most according to claim 1, it is characterised in that: in described step 2, binding agent is solid
The ptfe emulsion of content 58-62%.
4. according to the preparation method of the button electrode described in claim 1 or 3, it is characterised in that: described solvent is deionized water.
The preparation method of button electrode the most according to claim 1 and 2, it is characterised in that: material mixing in described step 4
The baking temperature of thing is 65-75 DEG C, 20-30 hour drying time, and material blends crosses 150 mesh and with upper screen cloth.
The preparation method of button electrode the most according to claim 1, it is characterised in that: in described step 7, baking temperature is
65-75 DEG C, 20-30 hour drying time.
7. button components and parts, including housing and conductive current collector, it is characterised in that: also include that claim 1 to 6 is any one
Button electrode described in Xiang, this button electrode is arranged in housing, and this button electrode is connected with housing by conductive current collector.
8. the preparation method of button components and parts, it is characterised in that preparation button electrode described in claim 7, described conduction collection
Fluid is reticulated collectors, specifically comprises the following steps that
Step 1, in the middle of two panels button electrodes face compacting to reticulated collectors, the diameter of this reticulated collectors is more than pole piece
Diameter, button electrode coaxially arranged with reticulated collectors；
Step 2, is welded in part exposed for reticulated collectors on housing；
Step 3, is assembled into components and parts after vacuum drying treatment.
The preparation method of button components and parts the most according to claim 8, it is characterised in that: the described welded mesh in step 2
Before shape collector, between housing and button pole piece, cover one layer of conducting resinl.
The most according to Claim 8 or the preparation method of described button components and parts, it is characterised in that: described button pole piece is suppressed
Before reticulated collectors, cover one layer of conducting resinl on reticulated collectors surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610795020.1A CN106128803A (en) | 2016-08-31 | 2016-08-31 | The preparation method of button electrode and components and parts and the preparation method with this button electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610795020.1A CN106128803A (en) | 2016-08-31 | 2016-08-31 | The preparation method of button electrode and components and parts and the preparation method with this button electrode |
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| CN106128803A true CN106128803A (en) | 2016-11-16 |
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ID=57271065
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| CN201610795020.1A Pending CN106128803A (en) | 2016-08-31 | 2016-08-31 | The preparation method of button electrode and components and parts and the preparation method with this button electrode |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216524A (en) * | 2020-10-14 | 2021-01-12 | 江苏纳能新能源有限公司 | Water system buckle type super capacitor |
| CN112837946A (en) * | 2020-10-30 | 2021-05-25 | 山东精工电子科技有限公司 | Method for assembling button type super capacitor |
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| US20020027305A1 (en) * | 1997-10-17 | 2002-03-07 | Nec Corporation | Activated carbon/carbon composite electrode suitable as a polarizable electrode for use in an electric double-layer capacitor and method of producing the same |
| JP2003109873A (en) * | 2001-09-28 | 2003-04-11 | Nec Tokin Corp | Electric double layer capacitor |
| CN102789905A (en) * | 2011-05-18 | 2012-11-21 | 深圳振华富电子有限公司 | Preparation process and application of electrode plate |
| CN103907226A (en) * | 2011-09-14 | 2014-07-02 | 日本瑞翁株式会社 | Electrode for electrochemical element |
| CN104704661A (en) * | 2013-03-11 | 2015-06-10 | 松下电器产业株式会社 | Electrode active material for power storage device, and power storage device |
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2016
- 2016-08-31 CN CN201610795020.1A patent/CN106128803A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020027305A1 (en) * | 1997-10-17 | 2002-03-07 | Nec Corporation | Activated carbon/carbon composite electrode suitable as a polarizable electrode for use in an electric double-layer capacitor and method of producing the same |
| JP2003109873A (en) * | 2001-09-28 | 2003-04-11 | Nec Tokin Corp | Electric double layer capacitor |
| CN102789905A (en) * | 2011-05-18 | 2012-11-21 | 深圳振华富电子有限公司 | Preparation process and application of electrode plate |
| CN103907226A (en) * | 2011-09-14 | 2014-07-02 | 日本瑞翁株式会社 | Electrode for electrochemical element |
| CN104704661A (en) * | 2013-03-11 | 2015-06-10 | 松下电器产业株式会社 | Electrode active material for power storage device, and power storage device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216524A (en) * | 2020-10-14 | 2021-01-12 | 江苏纳能新能源有限公司 | Water system buckle type super capacitor |
| CN112837946A (en) * | 2020-10-30 | 2021-05-25 | 山东精工电子科技有限公司 | Method for assembling button type super capacitor |
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