EP3551785A1 - Durchlaufabscheideanlage und baugruppe für eine solche - Google Patents
Durchlaufabscheideanlage und baugruppe für eine solcheInfo
- Publication number
- EP3551785A1 EP3551785A1 EP17818422.2A EP17818422A EP3551785A1 EP 3551785 A1 EP3551785 A1 EP 3551785A1 EP 17818422 A EP17818422 A EP 17818422A EP 3551785 A1 EP3551785 A1 EP 3551785A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contacting
- devices
- control device
- assembly
- individual
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/001—Apparatus specially adapted for electrolytic coating of wafers, e.g. semiconductors or solar cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/005—Contacting devices
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/02—Tanks; Installations therefor
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/12—Process control or regulation
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
- C25D5/028—Electroplating of selected surface areas one side electroplating, e.g. substrate conveyed in a bath with inhibited background plating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
- C25D7/0614—Strips or foils
- C25D7/0621—In horizontal cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/18—Electroplating using modulated, pulsed or reversing current
Definitions
- the invention relates to a naturallaufabscheidestrom for gal ⁇ vanischen depositing a substance on objects according to the preamble of claim 1 and an assembly for a fürlaufabscheidestrom for the galvanic deposition of a substance on objects.
- Electricity required by means of which the said ions charge carriers can be supplied, so that the ions precipitate on the surface of the object.
- electrons are supplied to an object surface to be coated, where they react with metal cations from the electrolyte in contact with the electrolyte in a manner known per se and the metal is deposited on the object surface.
- the sliding contact touches to Vorbeilau ⁇ fen of the first object and before the arrival of the next object for a certain time no object. Often it comes during this certain time to a direct contact between see the sliding contact and the electrolyte.
- the sliding contact immerses in an electrolyte solution.
- ⁇ special in a galvanic deposition of substances on substrates such as solar cells, this is the case.
- This unwanted direct contact between the grinding contact and the electrolyte then leads to a deposition of the substance, for example the metal, from the electrolyte on the sliding contact. This effect occurs not only in contact brushes , but also in other contacting devices, such as metal rollers. The unwanted deposits on the sliding contact or other contacts can occur in the
- the present invention has for its object to provide a fürlaufabscheidestrom for electroplating ⁇ -deposition of a substance on objects by means of which the galvanic deposition of substances on contacting devices can be reduced or even avoided.
- the invention has for its object to enable a ⁇ on low-wall production of such fürlaufabscheideanlagen.
- the fürlaufabscheidestrom according to the invention for the galvanic deposition of a substance on objects has Kunststoffiervor ⁇ directions with at least one electrically conductive contact on ⁇ poor.
- the contactors are arranged in those areas of the fürlaufabscheidestrom which are free of a USAGE ⁇ Deten for the electrodeposition of the substance electrolyte. Because of this arrangement, there is neither in times in which the contacting devices contact the objects, even in times when they contact any Whether ⁇ projects to a direct contact between the contactors and the electrolyte. The undesired galvanic deposition of the substance on the Kunststoffiervor ⁇ directions is thus avoided.
- the contact arm is preferably made flexible. Uneven ⁇ units on the object surface can be overcome low wall up in this manner, preferably several con- tact arms are provided, since the e jektOber lake manner also on uneven Obwalden a zuverlässi e contacting means of the contacting devices can be realisi rt.
- the contact arms, or the entire contacting Koen ⁇ NEN example, of graphite foil or stainless steel sheet be gefer ⁇ Untitled, wherein has proven a thickness of about 0.5 mm in the case of the stainless steel sheet.
- a coating of Maisar ⁇ me, for example, with a noble metal such as gold, may be advantageous in a ⁇ zelnen application.
- the contact arms Preferably contacting devices are used, the contact arms, at least in those areas in which they contact the objects, have smooth edges.
- smooth edges can be realized for example by laser cutting, wire erosion or electropolishing.
- all contacting devices are arranged in a region free of the electrolyte.
- the advantages of the invention can be largely exploited.
- the electrolyte is arranged in a basin.
- At least one drain device is provided in the basin, by means of which the level of the electrolyte in drainage areas can be locally lowered.
- the contacting devices have contact surfaces, by means of which the objects can be contacted. This may, for example, simply be those surfaces of the at least one electrically conductive contact arm which come into contact with the object during operation of the continuous flow separation system.
- the mentioned contact surfaces of the justifyiervorrichtun ⁇ conditions are arranged in said drainage areas.
- the feature according to which the justifyiervorrich ⁇ obligations are to be arranged in regions of the fürlaufabscheidestrom, which are free of the electrolyte can be realized cost-effectively.
- at least one drain device has one
- Hollow body which is at least partially angeord ⁇ net under the contact surfaces of at least one contacting and which is at least partially flowed through by the electrolytes ⁇ lyten.
- the hollow body may be so shaped and arranged that it is located just under the Maisflä ⁇ chen a single contactor.
- the at least one drainage device has an opening on its upper side, which at least partially is arranged below the level of the electrolyte. This makes it possible to lower the level of the electrolyte very localized. In practice, it has proven useful to provide a hollow body as a tube, the upper opening is arranged under the contact surfaces we ⁇ least one contacting device.
- a plurality of contacting devices are electrically conductively connected to the same voltage source. They are thus fed by this voltage source.
- unequal deposition rates can occur at the contacting devices. This is totechnischzu ⁇ lead to be on the way from the power source to the jewei ⁇ then contacting devices sometimes significantly differing ⁇ che electrical resistors.
- a load resistor is connected upstream.
- the respective load resistor is dimensioned such that upon contact closing each of the pluralitymaschineiervor ⁇ directions above is subjected to a substantially equally large electrical current ⁇ rule.
- the Lastwi- resistances are chosen so that the above are compensated for ⁇ electrical resistance differences on the way of the clamping ⁇ voltage source to the respective contactor and flows through each contactor of the same electric current.
- a contact closure in the present sense is to be understood as meaning that the contact surfaces on the object rest in such a way that an electric current can flow.
- a separate rectifier can be provided for each contacting device.
- This is preferably designed as a constant current source.
- the determination and instal ⁇ on resistance differences compensating Lastwiderstän ⁇ can be avoided in this way, or at least reduced.
- approximately 250 rectifiers or constant-current sources would be required.
- he ⁇ hemper installation space is required, which must be provided usually outside the actual für fürmaschinege.
- the assembly according to the invention for a Jerusalemlaufabscheidean ⁇ location for the galvanic deposition of a substance on objects comprises at least one contact-making on, and a connectable to a power supply control device.
- Each of the at least one contacting devices is connected to se parate ⁇ electrical lines to the control device so that each of the one Kunststoffiervorrich ⁇ tung is acted upon separately with electric current at least.
- ⁇ means of such an assembly may be the above-described modular By ⁇ laufabscheidestrom.
- the at least one contacting device comprises a plurality of contacting devices, preferably at least four contacting devices. This enables the above ⁇ be advertised benefits of constant current sources for each animal Kontak- device expense-effective to implement.
- control device is advantageously ⁇ as to set up electrical power, with which the individual contactors at least one Kontak- be applied animal the device, separately for each of these separate contacting devices to control and / or re ⁇ rules.
- indicators such example ⁇ as current flow through the respective contactor or contact resistances at the respective Maisiervorrichtun- gen, can be recorded in process history and the further process for each object optimally at each devisiervorrich ⁇ processing or other process points to be adjusted.
- the control device for each of the at least one contacting device Kunststoffiervorrich ⁇ processing is set as a constant-current control, so that each one ⁇ zelne contacting the at least one contactor ⁇ device is separately acted upon by electric current of constant magnitude.
- a uniform electrolytic deposition of substances in electroplating fürabscheideanlagen can comparatively low expense-reali be ⁇ Siert.
- control device is directed once to the Wenig ⁇ least one separate contacting for each contact device to pass through predetermined current ⁇ profile.
- a current profile is to be understood as a time-variable sequence of values of electrical current.
- the term of passage means that the Affected contacting device is applied in time sequence with values of electric current, which correspond to the current profile.
- the stated values of the electric current can be controlled or regulated.
- the STEU ⁇ ervorides on a communication interface by means of which data can be exchanged bi-directionally with a yersvor ⁇ direction.
- Said communication interface ⁇ is preferably performed as a bus interface from ⁇ , for example, as a CAN bus interface.
- the power control device can obtain power control parameters from the data processing device. It is also possible, determined by the control device measurement data, such as power flows at individual Maisiervorrichtun ⁇ gen, for the purpose of process monitoring and archiving of process data to the data processing device to übermit ⁇ stuffs, where they can be stored, for example.
- a data exchange via the communication interface is preferably via a ge ⁇ tected protocol.
- the fürlaufabscheidestrom invention have preferably ⁇ , at least one of the assembly described above on. In this way, their advantages can be utilized in the continuous separation plant.
- the fürlaufabscheidestrom described herein can be used before ⁇ geous for the galvanic deposition of metals or metal alloys Me ⁇ . It can be used particularly advantageously in the electrodeposition of metals or metal alloys on a substrate, in particular on a solar cell.
- Aluminum back surface field which is often referred to in the English language as aluminum back surface field, in the metallization of solar cells with passivated emitter and back - so-called PERC cells, in the metallization of fully diffused solar cells with passivated
- FIG. 1 A first embodiment of the invention
- Figure 2 shows a second embodiment of the invention
- FIG. 4 is a partial schematic representation of a fourth Auspar ⁇ tion of the invention fürlaufab ⁇ separation plant containing a Bau ⁇ group.
- Figure 1 shows a schematic sectional view of a first embodiment of the invention fürlaufab ⁇ separation plant.
- the illustrated continuous flow separation plant 10 has a basin 5, in which a liquid electrolyte 7 is arranged.
- Solar cells 1 are transported by means of transport rollers 4 in a transport direction 3 in the continuous separation apparatus 10. In this case, an underside of the solar cells 1 ⁇ with the electrolyte 7 comes into contact.
- the basin 5 can be designed in a manner known per se as an overflow basin, so that a level 8 of the electrolyte 7 higher than an upper edge of the basin 5, and the electrolyte overflows into a non Darge ⁇ notified, surrounding pool.
- the continuous separation plant 10 has contacting devices 12. These are shown in Figure 1 for the sake of simplicity with only one electrically conductive contact arm 13, but it can easily be provided a plurality of contact arms.
- tubes 16 are provided aslithVorraumen. Upper openings 17 of these tubes 16 are arranged below the level 8 of the electrolyte 7. As a result, the electrolyte 15 flows from the vicinity of the tubes 16 in the openings 17 of the tubes 16 and flows through the tubes 16 down. As a result, the level 8 of the electrolyte in Ab ⁇ running areas 18 is locally lowered.
- the contacting devices 12 have contact surfaces 14 at their lower end. These are those surfaces of the con ⁇ taktiervoriquesen 12, which len come when passing through the Solarzel ⁇ len 1 through the continuous separation 10 with the surface of the solar cell 1 in contact. These contact surfaces 14 of the contacting devices 12 are arranged in the drainage regions 18. As a result, the contact surfaces 14, and thus the entire contacting devices 12, even if they do not just rest on one of the solar cells 1, do not come into contact with the electrolyte 7. Thus, the contact surfaces 14 come ⁇ as well as the entire contactors 12 is never in contact with the electrolyte 7 and the above- ⁇ be required, adverse deposition of metal on the Mais ⁇ animal devices 12 is avoided.
- the contact surfaces 14 of the contacting devices 12 in the context of the present application in the drain areas 18 are arranged. Furthermore, the tubes 16 are arranged under the contact surfaces 14 of the Kunststoffiervor ⁇ directions 12.
- the contact surfaces 14 of the contactors 22a, 22b being arranged in ⁇ drain regions 28 and tubes 26 are under the contact surfaces 14 of the contactors 22a, 22b are arranged accordingly in the example shown in Figure 2 embodiment.
- Figure 3 shows a partial perspective view of a fur ⁇ direct embodiment.
- Kunststoffart ⁇ In the illustrated Naturallaufab ⁇ separation system 30
- Kunststoffiervoriquesen 32a, 32b are provided see, which each have four contact arms 33a, 33b, 33c, 33d on ⁇ .
- Two Benach ⁇ discloses arranged in the transport direction 3 of the solar cells 1 contactors 32a, 32b are similar to those in the embodiment of Figure 2, the contactors 22a, 22b arranged on the same waste device which is formed as in the case of fürvierabscheidestrom 20 through a pipe. Instead, other relieVorrichtun ⁇ conditions can be provided.
- Figure 3 serving as StanfordVorrichtun ⁇ gene tubes are not visible.
- the contacting devices 32b are also only occasionally and in small parts he ⁇ recognizable. In most cases, the contacting devices 32b are covered by a contactor device carrier 34. These contactor device carriers 34 serve to support contacting device modules 36, in which the contact devices 32a, 32b are accommodated.
- the solar cells 1 are transported by means of the transport rollers 4 in the transport direction 3 and are guided past the contacting devices 32a, 32b.
- the contacting devices 32a, 32b formed in the exemplary embodiment of FIG. 3 from a stainless steel sheet thereby become light bent and contact the solar cell 1 on the Obersei ⁇ te.
- the movement of the solar cells 1 is not slowed or even stopped by the contact with the contacting devices 32a, 32b.
- the contacting devices transmit at least during part of the time while contacting the solar ⁇ cells, electrical current or La ⁇ makers on the solar cell. This circuit is closed via the electrolyte 7 and an anode, not shown in the figures in a conventional manner.
- FIG. 4 illustrates a schematic representation of an embodiment of the assembly according to the invention.
- This assembly 60 is marked by a dashed border.
- Figure 4 illustrates Figure 4 with reference to a specific ⁇ matic part view of another embodiment of a fürlaufabscheidestrom.
- This pass-through separator 50 in turn has a basin, an electrolyte, mecanicvor ⁇ directions and transport rollers.
- solar cells 1 are shown, which are transported in the transport direction 3 by means of the transport rollers (not shown).
- flow devices in particular tubes, are provided, which drainage areas ⁇ are arranged in which contact surfaces of the contactors 52 ausbil.
- the continuous separation plant 50 has four assemblies 60.
- the number of modules may be increased as necessary or ver ⁇ be Ringert.
- Each of these modules has in the embodiment ⁇ example of Figure 4 three contactors 52.
- the assembly is thus designed for a three-track system.
- the number of contactors can be increased, while For example, as in the embodiment of Figure 3, in egg ⁇ ner assembly 60 per track two contactors vorzu ⁇ see or to extend the füriliaabscheidestrom 50 to additional tracks.
- Each contacting device 52 has three contact arms 53a, 53b, 53c. The number of contact arms can be adapted to the respective application.
- the Kontak ⁇ animal devices 52 are supported on a Kunststoffiervoriquessträ- ger 54.
- the assembly comprises a power supply connectable to a ⁇ Steuerungsvor direction 64th This is a result of the use of the construction ⁇ group 60 in the fürlaufabscheidestrom 50 already comparable to the power supply 70 connected in the lung depicting ⁇ FIG. 4 Further, each of the contactors 52 is connected through separate electrical lines 62 to the Steuerungsvorrich ⁇ tung 64th This is done such that each of the Kontak- t istsvortechnischen 52 is separately with electric current beauf ⁇ beatable.
- the assembly 60 includes a karsein ⁇ standardized 68, which is adapted to measuring processes intra ⁇ half of the module, such as current or keepssmes ⁇ measurements on individual contactors 52 or Kunststoffar- men 53a, 53b, 53c to make and record measured values and if necessary continue to process.
- the control device is set up as a constant current control for each contacting device. Furthermore, the control device is set up to pass through separate, predefinable current profiles for each contacting device 52.
- the functions of the control device mentioned can by means of discrete electrical ⁇ shear or electronic circuits or devices reali be ⁇ Siert.
- the data processing unit 68 is set up to handle these functionalities, possibly ter resort to other components of the control device 64 to provide.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Automation & Control Theory (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Electroplating Methods And Accessories (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016124002 | 2016-12-09 | ||
PCT/DE2017/101049 WO2018103793A1 (de) | 2016-12-09 | 2017-12-08 | Durchlaufabscheideanlage und baugruppe für eine solche |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3551785A1 true EP3551785A1 (de) | 2019-10-16 |
Family
ID=60788534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17818422.2A Withdrawn EP3551785A1 (de) | 2016-12-09 | 2017-12-08 | Durchlaufabscheideanlage und baugruppe für eine solche |
Country Status (7)
Country | Link |
---|---|
US (1) | US20190338439A1 (de) |
EP (1) | EP3551785A1 (de) |
JP (1) | JP2020505503A (de) |
KR (1) | KR20190091481A (de) |
CN (1) | CN110234799A (de) |
TW (1) | TW201827655A (de) |
WO (1) | WO2018103793A1 (de) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19612555C2 (de) * | 1996-03-29 | 1998-03-19 | Atotech Deutschland Gmbh | Verfahren zur selektiven elektrochemischen Behandlung von Leiterplatten und Vorrichtung zur Durchführung des Verfahrens |
DE102005031948B3 (de) * | 2005-07-08 | 2006-06-14 | Höllmüller Maschinenbau GmbH | Vorrichtungen und Verfahren zur elektrolytischen Behandlung von Folien von Rolle zu Rolle |
DE102007055338B4 (de) * | 2007-11-19 | 2009-08-13 | Rena Sondermaschinen Gmbh | Vorrichtung und Verfahren zum elektrischen Kontaktieren von Gut in elektrolytischen Durchlaufanlagen |
DE102008026199B3 (de) * | 2008-05-30 | 2009-10-08 | Rena Gmbh | Vorrichtung und Verfahren zur elektrischen Kontaktierung von ebenem Gut in Durchlaufanlagen |
DE102009057463A1 (de) * | 2009-12-03 | 2011-06-09 | Hübel, Egon | Verfahren und Vorrichtung zum elektrischen Kontaktieren von Gut in Durchlaufanlagen |
CN102947941A (zh) * | 2010-04-01 | 2013-02-27 | 索蒙特有限责任公司 | 太阳能电池及其制造方法 |
DE102013100805B4 (de) * | 2013-01-28 | 2015-01-22 | Hochschule Offenburg | Nasschemische Behandlungsanlage zum elektrochemischen Beschichten von flachen Substraten |
-
2017
- 2017-12-08 EP EP17818422.2A patent/EP3551785A1/de not_active Withdrawn
- 2017-12-08 JP JP2019530183A patent/JP2020505503A/ja active Pending
- 2017-12-08 US US16/467,728 patent/US20190338439A1/en not_active Abandoned
- 2017-12-08 TW TW106143063A patent/TW201827655A/zh unknown
- 2017-12-08 KR KR1020197018534A patent/KR20190091481A/ko unknown
- 2017-12-08 WO PCT/DE2017/101049 patent/WO2018103793A1/de unknown
- 2017-12-08 CN CN201780076077.9A patent/CN110234799A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
JP2020505503A (ja) | 2020-02-20 |
WO2018103793A1 (de) | 2018-06-14 |
TW201827655A (zh) | 2018-08-01 |
KR20190091481A (ko) | 2019-08-06 |
CN110234799A (zh) | 2019-09-13 |
US20190338439A1 (en) | 2019-11-07 |
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