CN102324441A - Metal-plastic compound solar photovoltaic confluence welding strip and preparation method thereof - Google Patents
Metal-plastic compound solar photovoltaic confluence welding strip and preparation method thereof Download PDFInfo
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- CN102324441A CN102324441A CN201110196019A CN201110196019A CN102324441A CN 102324441 A CN102324441 A CN 102324441A CN 201110196019 A CN201110196019 A CN 201110196019A CN 201110196019 A CN201110196019 A CN 201110196019A CN 102324441 A CN102324441 A CN 102324441A
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Abstract
The invention discloses a metal-plastic compound solar photovoltaic confluence welding strip and a preparation method thereof, which relate to a solar photovoltaic welding conducting strip and a preparation method thereof and are used for solving the technical problem of easy occurrence of fatigue fracture in the conventional tin-coated copper conducting strip. The metal-plastic compound solar photovoltaic confluence welding strip is a parallel three-layer compound structural strip which consists of a first copper layer, a middle metal plastic layer and a second copper layer, or a core-spun compound structural strip consisting of metal plastic and a copper layer, wherein the copper layer is coated on the outer surface of the metal plastic. The preparation method comprises the following step of: coating a copper layer on the outer surface of the metal plastic with an electroplating or chemical plating method to obtain the metal-plastic compound solar photovoltaic confluence welding strip; or rolling with a flattener. In the method, the metal plastic is taken as an interlayer or a core, so that the phenomenon of fatigue fracture of the welding strip or a polycrystalline silicon cell panel caused by thermal stress can be avoided completely, and the metal-plastic compound solar photovoltaic confluence welding strip is applied to a solar device.
Description
Technical field
The present invention relates to photovoltaic welding conduction band and preparation method thereof.
Background technology
Along with international economic environment is increasingly competitive, the national economic development faces huge challenge, and the contention and the status of strategic plan in the overall background of whole economy market in new forms of energy market become increasingly conspicuous.Conventional energy shortage simultaneously to conservation of natural environment require harsh day by day down; Solar energy is a kind of as regenerative resource; Status as the most important components in the future source of energy structure also highlights day by day; How to improve the service efficiency and the life-span of solar energy equipment, its importance is self-evident.The life-span of solar components depends primarily on the fatigue life of its interconnector, promptly is coated with the useful life of tin copper conduction band.On-dismountable owing to the Highgrade integration of modern sun ability device design; Wherein between each photovoltaic assembly such as polysilicon and ceramic constituent element under each at work temperature change thermal cycle thermal stress will produce strain and not match; Width is that 2mm～62mm, thickness are that the tin copper conduction band that is coated with of 0.1mm～0.25mm just very easily causes the thermal fatigue fracture as the conduction connecting line in the thermal cycle process; Even under thermal stress, cause polysilicon solar cell plate generation embrittlement, result be the termination solar energy equipment operation.How to improve the mechanical property of photovoltaic conduction band; Come ideally to agree with the thermal strain of each voltaic inter-module in solar energy equipment operation thermal cycle; And play the effect of relief of thermal stress; To be that service efficiency and life-span are played the key issue of decisive factor to final integrated of whole solar energy equipment.
Summary of the invention
The present invention will solve existingly to be coated with the technical problem that tin copper conduction band be prone to produce the thermal fatigue fracture, and the metallo-plastic composite solar photovoltaic welding and preparation method thereof that confluxes is provided.
The metallo-plastic composite solar photovoltaic of the present invention welding that confluxes is the parallel three-layer composite structure band that is made up of the first bronze medal layer, metallo-plastic layer and the second bronze medal layer; The width of composite construction band is 2mm～62mm; Thickness is 0.1mm～0.25mm; In the middle of wherein the metallo-plastic layer was positioned at, the first bronze medal layer and the second bronze medal layer laid respectively at the upper and lower both sides of metallo-plastic layer, and the thickness of metallo-plastic layer accounts for 50%～99% of composite construction tape thickness; The contact rate of the first bronze medal layer and metallo-plastic layer greater than the contact rate of 99%, the second bronze medal layer and metallo-plastic layer greater than 99%.
The conflux preparation method of welding carries out above-mentioned metallo-plastic composite solar photovoltaic according to the following steps: be electroplate liquid with the copper-bath; With thickness is that 0.05mm～0.248mm metallo-plastic is a negative electrode; With copper is anode, is that 30 ℃～50 ℃, current density are 0.5A/dm in temperature
2～0.8A/dm
2Condition under electroplate 20min～60min, obtain composite board, cut into the tape that width is 2mm～62mm then, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
The conflux preparation method of welding can also carry out above-mentioned metallo-plastic composite solar photovoltaic according to the following steps: be that 0.05mm～0.248mm metallo-plastic is a negative electrode with thickness; With copper is anode; Be immersed in and carry out electroless copper 40min～60min in the chemical plating fluid; Obtain composite board, cut into the tape that width is 2mm～62mm then, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
The conflux preparation method of welding can also carry out above-mentioned metallo-plastic composite solar photovoltaic according to the following steps: with thickness is that the metallo-plastic plate of 0.15mm～0.25mm is as the intermediate layer; Upper and lower cladding thickness is 0.05mm～0.1mm copper coin; Join in the calender rolling; Obtain composite board, cut into the tape that width is 2mm～62mm then, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
The metallo-plastic composite solar photovoltaic of the present invention welding that confluxes is the cladded type composite construction band that is made up of metallo-plastic and copper layer; The width of composite construction band is 2mm～62mm; Thickness is 0.1mm～0.25mm, and wherein metallo-plastic is a core, and the copper layer is coated on the outer surface of metallo-plastic; The thickness of metallo-plastic accounts for 50%～99% of composite construction tape thickness, and the contact rate of copper layer and metallo-plastic is greater than 99%.
The conflux preparation method of welding carries out above-mentioned metallo-plastic composite solar photovoltaic according to the following steps: be electroplate liquid with the copper-bath; With thickness is that 0.05mm～0.248mm metallo-plastic is a negative electrode; With copper is anode, is that 30 ℃～50 ℃, current density are 0.5A/dm in temperature
2～0.8A/dm
2Condition under electroplate 20min～60min, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
The conflux preparation method of welding can also carry out above-mentioned metallo-plastic composite solar photovoltaic according to the following steps: be that 0.05mm～0.248mm metallo-plastic is a negative electrode with thickness; With copper is anode; Be immersed in and carry out electroless copper 20min～45min in the chemical bronze plating liquid, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
The conflux preparation method of welding can also carry out above-mentioned metallo-plastic composite solar photovoltaic according to the following steps: with width is that 1mm～60mm, thickness are that the metallo-plastic plate of 0.05mm～0.27mm is as sandwich layer; It is 0.05mm～0.1mm copper coin that outer surface coats thickness; Join in the calender rollingly, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
The present invention breaks through with manufacturability and prepares rigidly adhering to of soft attitude copper solution thermal stress; On conduction band material or structure, explore; Select for use the reason of metallo-plastic to be that solar energy voltaic equipment work temperature also is the glass transformation temperature (70 ℃～80 ℃) of metallo-plastic just; Plastic working operations such as supercooling liquid phase region of its broad (Δ T=80K) and the event of its high stability can be compressed in environment in this temperature range even liquid environment very easily, stretching, distortion, impression; Conduction band reaches superplasticity work in this temperature range; The perfect demand that realizes relief of thermal stress; So adopting with metallo-plastic is that composite multi-layer (bag core or the parallel three lamination systems of sandwich) the photovoltaic conduction band design of main material is come the matching problem to thermal stress between solar components; Metallo-plastic itself has high corrosion-resistant simultaneously, the long-life (about 200 years of crystallization incubation time can take place by the Arrhenius extrapolation), can avoid the problem that causes welding or polycrystal silicon cell plate fatigability to rupture under the thermal stress fully.Metallo-plastic not only relative cost is cheap; Excellent conductivity; And metallo-plastic itself has stronger anti-oxidant and corrosion resistance, and its surface smoothness requires very to reach easily, can think that PROCESS FOR TREATMENT is easy; Do not relate to the high energy consumption process, make the making of photovoltaic conduction band itself have higher environment compatibility.The present invention has easy processing simultaneously, and technology is simple, and the product collimation is prone to the potential characteristic of assurance.Also can be according to the strict degree of the thermal stress matching between each photovoltaic module, many aspects such as product weight, cost, conductance, connection effect, product cost are adjusted metallo-plastic and copper (metallo-plastic itself is prone to mutually compound with copper) proportion in the finished product conduction band.The design also can make manufacture craft simplify greatly and improve the quality of products, and makes to reduce cost and become possibility.
The metallo-plastic composite solar photovoltaic of the present invention welding that confluxes can be widely used in the solar energy equipment.
Description of drawings
Fig. 1 is the conflux structural representation of cross section of welding of the metallo-plastic composite solar photovoltaic of embodiment one, and 1 is the first bronze medal layer among the figure, and 2 is the metallo-plastic layer, and 3 is the second bronze medal layer; Fig. 2 is the conflux structural representation of cross section of welding of the metallo-plastic composite solar photovoltaic of embodiment 25, and 4 is the copper layer among the figure, and 5 is metallo-plastic.
Embodiment
Embodiment one: (seeing also accompanying drawing 1) metallo-plastic composite solar photovoltaic of the present invention welding that confluxes is the parallel three-layer composite structure band that is made up of the first bronze medal layer 1, metallo-plastic layer 2 and the second bronze medal layer 3; The width of composite construction band is 2mm～62mm; Thickness is 0.1mm～0.25mm; In the middle of wherein metallo-plastic layer 2 was positioned at, the first bronze medal layer 1 and the second bronze medal layer 3 were positioned at the upper and lower both sides of metallo-plastic layer 2, and the thickness of metallo-plastic layer 2 accounts for 50%～99% of composite construction tape thickness; The contact rate of the first bronze medal layer 1 and metallo-plastic layer 2 greater than the contact rate of 99%, the second bronze medal layer 3 and metallo-plastic layer 2 greater than 99%.
This execution mode selects for use metallo-plastic as the conflux intermediate layer of welding of composite solar photovoltaic; Solar energy voltaic equipment work temperature also is the glass transformation temperature (70 ℃～80 ℃) of metallo-plastic just; Metallo-plastic has the supercooling liquid phase region (Δ T=80K) and the higher stability of broad; So can be at the environment in this temperature range; Even can compress very easily in the liquid environment, plastic working operations such as stretching, distortion, impression, conduction band reaches superplasticity work in this temperature range, the perfect demand that realizes relief of thermal stress; It with metallo-plastic the matching problem that the photovoltaic conduction band of parallel three layers of composite multi-layer of main material can effectively solve thermal stress between solar components; Metallo-plastic itself has high corrosion-resistant simultaneously, the long-life (about 200 years of crystallization incubation time can take place by the Arrhenius extrapolation), can avoid the problem that causes welding or polycrystal silicon cell plate fatigability to rupture under the thermal stress fully.Metallo-plastic not only relative cost is cheap; Excellent conductivity; And metallo-plastic itself has stronger anti-oxidant and corrosion resistance, and its surface smoothness requires very to reach easily, can think that PROCESS FOR TREATMENT is easy; Do not relate to the high energy consumption process, make the making of photovoltaic conduction band itself have higher environment compatibility.
Embodiment two: what this execution mode and embodiment one were different is that described metallo-plastic is cerium-base alloy Ce
70Al
10Cu
20Or Ce
70Al
10Cu
20Nb
2Other is identical with embodiment one.
Embodiment three: the conflux preparation method of welding carries out embodiment one described metallo-plastic composite solar photovoltaic according to the following steps: be electroplate liquid with the copper-bath; With the metallo-plastic is negative electrode; With copper is anode, is that 30 ℃～50 ℃, current density are 0.5A/dm in temperature
2～0.8A/dm
2Condition under electroplate 20min～60min, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
This execution mode has prepared the composite solar photovoltaic welding that confluxes with the electro-plating method that is simple and easy to process; The composite solar photovoltaic of preparation conflux welding with metallo-plastic as the conflux intermediate layer of welding of composite solar photovoltaic; Solar energy voltaic equipment work temperature also is the glass transformation temperature (70 ℃～80 ℃) of metallo-plastic just; Metallo-plastic has the supercooling liquid phase region (Δ T=80K) and the higher stability of broad; So can be at the environment in this temperature range; Even can compress very easily in the liquid environment, plastic working operations such as stretching, distortion, impression, conduction band reaches superplasticity work in this temperature range, the perfect demand that realizes relief of thermal stress; It with metallo-plastic the matching problem that the photovoltaic conduction band of parallel three layers of composite multi-layer of main material can effectively solve thermal stress between solar components; Metallo-plastic itself has high corrosion-resistant simultaneously, the long-life (about 200 years of crystallization incubation time can take place by the Arrhenius extrapolation), can avoid the problem that causes welding or polycrystal silicon cell plate fatigability to rupture under the thermal stress fully.Metallo-plastic not only relative cost is cheap; Excellent conductivity; And metallo-plastic itself has stronger anti-oxidant and corrosion resistance, and its surface smoothness requires very to reach easily, can think that PROCESS FOR TREATMENT is easy; Do not relate to the high energy consumption process, make the making of photovoltaic conduction band itself have higher environment compatibility.
Embodiment four: what this execution mode and embodiment three were different is: the concentration of copper-bath is 0.02mol/L～0.10mol/L.Other is identical with embodiment three.
Does embodiment five: this execution mode with different with embodiment three is: the concentration of copper-bath do? 0.08mol/L.Other is identical with embodiment three.
Embodiment six: what this execution mode was different with one of embodiment three to five is: the temperature during plating is that 32 ℃～48 ℃, current density are 0.55A/dm
2～0.75A/dm
2, electroplating time is 25min～55min.Other is identical with one of embodiment three to five.
Embodiment seven: what this execution mode was different with one of embodiment three to five is: the temperature during plating is that 40 ℃, current density are 0.65A/dm
2, electroplating time is 30min.Other is identical with one of embodiment three to five.
Embodiment eight: the conflux preparation method of welding carries out the metallo-plastic composite solar photovoltaic of this execution mode according to the following steps: the copper-bath that with concentration is 0.05mol/L is an electroplate liquid; With the width is 20mm; Thickness is negative electrode for the 0.20mm metallo-plastic, is anode with copper, is that 45 ℃, current density are 0.7A/dm in temperature
2Condition under electroplate 25min, be cut to the tape that width is 8mm then, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
The metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is the parallel three-layer composite structure band that is made up of the first bronze medal layer 1, metallo-plastic layer 2 and the second bronze medal layer 3; The width of composite construction band is 8mm; Thickness is 0.21mm; In the middle of wherein metallo-plastic layer 2 was positioned at, the first bronze medal layer 1 and the second bronze medal layer 3 laid respectively at the upper and lower both sides of metallo-plastic layer 2, and the thickness of metallo-plastic layer 2 accounts for 95.2% of composite construction tape thickness; The contact rate of the first bronze medal layer 1 and metallo-plastic layer 2 is that the contact rate of 100%, the second bronze medal layer 3 and metallo-plastic layer 2 is 100%.
The metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is confluxed to be with copper and welded by the double glazing plate holder; Be placed on temperature and be in 80 ℃ the incubator; And the alternating current of logical 220V, as thermal cycle, behind the maintenance 24h; Find the copper band fracture of confluxing, and the metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is intact.
Embodiment nine: the conflux preparation method of welding carries out embodiment one described metallo-plastic composite solar photovoltaic according to the following steps: be that 0.05mm～0.248mm metallo-plastic is a negative electrode with thickness; With copper is anode; Be immersed in and carry out electroless copper 40min～60min in the chemical plating fluid; Obtain composite board, cut into the tape that width is 2mm～62mm then, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
This execution mode has prepared the composite solar photovoltaic welding that confluxes with the chemical plating method that is simple and easy to process; The composite solar photovoltaic of preparation conflux welding with metallo-plastic as the conflux intermediate layer of welding of composite solar photovoltaic; Solar energy voltaic equipment work temperature also is the glass transformation temperature (70 ℃～80 ℃) of metallo-plastic just; Metallo-plastic has the supercooling liquid phase region (Δ T=80K) and the higher stability of broad; So can be at the environment in this temperature range; Even can compress very easily in the liquid environment, plastic working operations such as stretching, distortion, impression, conduction band reaches superplasticity work in this temperature range, the perfect demand that realizes relief of thermal stress; It with metallo-plastic the matching problem that the photovoltaic conduction band of parallel three layers of composite multi-layer of main material can effectively solve thermal stress between solar components; Metallo-plastic itself has high corrosion-resistant simultaneously, the long-life (about 200 years of crystallization incubation time can take place by the Arrhenius extrapolation), can avoid the problem that causes welding or polycrystal silicon cell plate fatigability to rupture under the thermal stress fully.Metallo-plastic not only relative cost is cheap; Excellent conductivity; And metallo-plastic itself has stronger anti-oxidant and corrosion resistance, and its surface smoothness requires very to reach easily, can think that PROCESS FOR TREATMENT is easy; Do not relate to the high energy consumption process, make the making of photovoltaic conduction band itself have higher environment compatibility.
Embodiment ten: what this execution mode and embodiment nine were different is: the thickness of metallo-plastic is 0.1mm～0.20mm.Other is identical with embodiment nine.
Embodiment 11: what this execution mode and embodiment nine were different is: the thickness of metallo-plastic is 0.15mm.Other is identical with embodiment nine.
Embodiment 12: what this execution mode was different with one of embodiment nine to 11 is: chemical bronze plating liquid is prepared by following method: by the copper sulphate mass concentration is that 195g/L～248g/L, mass percentage concentration are that the mass concentration of 98% sulfuric acid is that the concentration of the chloride ion in 172g/L～217g/L, the chemical plating fluid is that 50ppm～100ppm takes by weighing copper sulphate, mass percentage concentration is 98% sulfuric acid and copper chloride and adds in the entry; Mix, obtain chemical bronze plating liquid.Other is identical with one of embodiment nine to 11.
Embodiment 13: what this execution mode was different with one of embodiment nine to 11 is: chemical bronze plating liquid is prepared by following method: by the copper sulphate mass concentration is that 200g/L, mass percentage concentration are that the mass concentration of 98% sulfuric acid is that the concentration of the chloride ion in 200g/L, the chemical plating fluid is that 80ppm takes by weighing copper sulphate, mass percentage concentration is 98% sulfuric acid and copper chloride and adds in the entry; Mix, obtain chemical bronze plating liquid.Other is identical with one of embodiment nine to 11.
Embodiment 14: this execution mode is different with one of embodiment nine to 13 is that time of electroless copper is 1.0h～3.5h.Other is identical with one of embodiment nine to 11.
Embodiment 15: that this execution mode is different with one of embodiment nine to 13 is the time 2.5h of electroless copper.Other is identical with one of embodiment nine to 11.
Embodiment 16: the conflux preparation method of welding carries out the metallo-plastic composite solar photovoltaic of this execution mode according to the following steps: is negative electrode with thickness for the 0.18mm metallo-plastic; With copper is anode; Be immersed in and carry out electroless copper 30min in the chemical bronze plating liquid; Obtain composite board, cut into the tape that width is 10mm then, obtain the metallo-plastic composite solar photovoltaic welding that confluxes; Wherein chemical bronze plating liquid is prepared by following method: by the copper sulphate mass concentration is that 220g/L, mass percentage concentration are that the mass concentration of 98% sulfuric acid is that the concentration of the chloride ion in 200g/L, the chemical plating fluid is that 70ppm takes by weighing copper sulphate, mass percentage concentration is 98% sulfuric acid and copper chloride and adds in the entry; Mix, obtain chemical bronze plating liquid.
The metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is the parallel three-layer composite structure band that is made up of the first bronze medal layer 1, metallo-plastic layer 2 and the second bronze medal layer 3; The width of composite construction band is 10mm; Thickness is 0.19mm; In the middle of wherein metallo-plastic layer 2 was positioned at, the first bronze medal layer 1 and the second bronze medal layer 2 laid respectively at the upper and lower both sides of metallo-plastic layer 2, and the thickness of metallo-plastic layer 2 accounts for 94.7% of composite construction tape thickness; The contact rate of the first bronze medal layer 1 and metallo-plastic layer 2 is that the contact rate of 100%, the second bronze medal layer 3 and metallo-plastic layer 2 is 100%.
The metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is confluxed to be with copper and welded by the double glazing plate holder; Be placed on temperature and be in 80 ℃ the incubator; And the alternating current of logical 220V, as thermal cycle, behind the maintenance 24h; Find the copper band fracture of confluxing, and the metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is intact.
Embodiment 17: the conflux preparation method of welding carries out embodiment one described metallo-plastic composite solar photovoltaic according to the following steps: with thickness is that the metallo-plastic plate of 0.15mm～0.25mm is as the intermediate layer; Upper and lower cladding thickness is 0.05mm～0.1mm copper coin; Join in the calender rolling; Obtain composite board, cut into the tape that width is 2mm～62mm then, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
This execution mode has prepared the composite solar photovoltaic welding that confluxes with the calendering milling method that is simple and easy to process; The composite solar photovoltaic of preparation conflux welding with metallo-plastic as the conflux intermediate layer of welding of composite solar photovoltaic; Solar energy voltaic equipment work temperature also is the glass transformation temperature (70 ℃～80 ℃) of metallo-plastic just; Metallo-plastic has the supercooling liquid phase region (Δ T=80K) and the higher stability of broad; So can be at the environment in this temperature range; Even can compress very easily in the liquid environment, plastic working operations such as stretching, distortion, impression, conduction band reaches superplasticity work in this temperature range, the perfect demand that realizes relief of thermal stress; It with metallo-plastic the matching problem that the photovoltaic conduction band of parallel three layers of composite multi-layer of main material can effectively solve thermal stress between solar components; Metallo-plastic itself has high corrosion-resistant simultaneously, the long-life (about 200 years of crystallization incubation time can take place by the Arrhenius extrapolation), can avoid the problem that causes welding or polycrystal silicon cell plate fatigability to rupture under the thermal stress fully.Metallo-plastic not only relative cost is cheap; Excellent conductivity; And metallo-plastic itself has stronger anti-oxidant and corrosion resistance, and its surface smoothness requires very to reach easily, can think that PROCESS FOR TREATMENT is easy; Do not relate to the high energy consumption process, make the making of photovoltaic conduction band itself have higher environment compatibility.
Embodiment 18: this execution mode and embodiment 17 are different is that the thickness of metallo-plastic plate is 0.12mm～0.24mm.Other is identical with embodiment 17.
Embodiment 19: this execution mode and embodiment 17 are different is that the thickness of metallo-plastic plate is 0.18mm.Other is identical with embodiment 17.
Embodiment 20: this execution mode is different with one of embodiment 17 to 19 is that the thickness of copper coin is 0.06mm～0.09mm.Other is identical with one of embodiment 17 to 19.
Embodiment 21: this execution mode is different with one of embodiment 17 to 19 is that the thickness of copper coin is 0.08mm.Other is identical with one of embodiment 17 to 19.
Embodiment 22: this execution mode is different with one of embodiment 17 to 21 is that the temperature of calender when rolling is 40 ℃～80 ℃, and roll spacing is 0.1～0.25mm, and thin logical number of times is 6～8 times, thin when logical roll spacing constant.Other is identical with one of embodiment 17 to 21.
Embodiment 23: this execution mode is different with one of embodiment 17 to 21 is that the temperature of calender when rolling is 60 ℃, and roll spacing is 0.2mm, and thin logical number of times is 7 times, thin when logical roll spacing constant.Other is identical with one of embodiment 17 to 21.
Embodiment 24: the conflux preparation method of welding carries out the metallo-plastic composite solar photovoltaic of this execution mode according to the following steps: with thickness is that the metallo-plastic plate of 0.20mm is as the intermediate layer; Upper and lower cladding thickness is the 0.08mm copper coin, joins in the calender rollingly, and the temperature when rolling is 60 ℃; Roll spacing is 0.2mm; Thin logical number of times is 6 times, thin when logical roll spacing constant, obtain composite board; Cut into the tape that width is 10mm then, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
The metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is the parallel three-layer composite structure band that is made up of the first bronze medal layer 1, metallo-plastic layer 2 and the second bronze medal layer 3; The width of composite construction band is 10mm; Thickness is 0.20mm; In the middle of wherein metallo-plastic layer 2 was positioned at, the first bronze medal layer 1 and the second bronze medal layer 2 laid respectively at the upper and lower both sides of metallo-plastic layer 2, and the thickness of metallo-plastic layer 2 accounts for 80% of composite construction tape thickness; The contact rate of the first bronze medal layer 1 and metallo-plastic layer 2 is that the contact rate of 99.9%, the second bronze medal layer 3 and metallo-plastic layer 2 is 99.9%.
The metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is confluxed to be with copper and welded by the double glazing plate holder; Be placed on temperature and be in 80 ℃ the incubator; And the alternating current of logical 220V, as thermal cycle, behind the maintenance 24h; Find the copper band fracture of confluxing, and the metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is intact.
Embodiment 25: the metallo-plastic composite solar photovoltaic of (seeing also accompanying drawing 2) this execution mode welding that confluxes is the cladded type composite construction band that is made up of metallo-plastic 5 and copper layer 4; The width of composite construction band is 2mm～62mm; Thickness is 0.1mm～0.25mm, and wherein metallo-plastic 5 is a core, and copper layer 4 is coated on the outer surface of metallo-plastic 5; The thickness of metallo-plastic 5 accounts for 50%～99% of composite construction tape thickness, and the contact rate of copper layer 4 and metallo-plastic 5 is greater than 99%.
This execution mode selects for use metallo-plastic as the conflux sandwich layer of welding of composite solar photovoltaic; Solar energy voltaic equipment work temperature also is the glass transformation temperature (70 ℃～80 ℃) of metallo-plastic just; Metallo-plastic has the supercooling liquid phase region (Δ T=80K) and the higher stability of broad; So can be at the environment in this temperature range; Even can compress very easily in the liquid environment, plastic working operations such as stretching, distortion, impression, conduction band reaches superplasticity work in this temperature range, the perfect demand that realizes relief of thermal stress; It with metallo-plastic the matching problem that the photovoltaic conduction band of the cladded type of main material can effectively solve thermal stress between solar components; Metallo-plastic itself has high corrosion-resistant simultaneously, the long-life (about 200 years of crystallization incubation time can take place by the Arrhenius extrapolation), can avoid the problem that causes welding or polycrystal silicon cell plate fatigability to rupture under the thermal stress fully.Metallo-plastic not only relative cost is cheap; Excellent conductivity; And metallo-plastic itself has stronger anti-oxidant and corrosion resistance, and its surface smoothness requires very to reach easily, can think that PROCESS FOR TREATMENT is easy; Do not relate to the high energy consumption process, make the making of photovoltaic conduction band itself have higher environment compatibility.
Embodiment 26: what this execution mode and embodiment 25 were different is that metallo-plastic is cerium-base alloy Ce
70Al
10Cu
20Or Ce
70Al
10Cu
20Nb
2Other is identical with embodiment 25.
Embodiment 27: this execution mode is different with embodiment 25 or 26 is that the width of composite construction band is 5mm～60mm, and thickness is 0.12mm～0.23mm.Other is identical with embodiment 25.
Embodiment 28: this execution mode is different with embodiment 25 or 26 is that the width of composite construction band is 30mm, and thickness is 0.18mm.Other is identical with embodiment 25.
Embodiment 29: this execution mode is different with one of embodiment 25 to 28 is that the thickness of the metallo-plastic 2 of composite construction band accounts for 55%～90% of composite construction tape thickness.Other is identical with one of embodiment 25 to 28.
Embodiment 30: this execution mode is different with one of embodiment 25 to 28 is that the thickness of the metallo-plastic 2 of composite construction band accounts for 80% of composite construction tape thickness.Other is identical with one of embodiment 25 to 28.
Embodiment 31: the conflux preparation method of welding carries out embodiment 25 described metallo-plastic composite solar photovoltaics according to the following steps: be electroplate liquid with the copper-bath; With thickness is that 0.05mm～0.248mm metallo-plastic is a negative electrode; With copper is anode, is that 30 ℃～50 ℃, current density are 0.5A/dm in temperature
2～0.8A/dm
2Condition under electroplate 20min～60min, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
This execution mode has prepared the composite solar photovoltaic welding that confluxes with the electro-plating method that is simple and easy to process; The composite solar photovoltaic of preparation conflux welding with metallo-plastic as the conflux intermediate layer of welding of composite solar photovoltaic; Solar energy voltaic equipment work temperature also is the glass transformation temperature (70 ℃～80 ℃) of metallo-plastic just; Metallo-plastic has the supercooling liquid phase region (Δ T=80K) and the higher stability of broad; So can be at the environment in this temperature range; Even can compress very easily in the liquid environment, plastic working operations such as stretching, distortion, impression, conduction band reaches superplasticity work in this temperature range, the perfect demand that realizes relief of thermal stress; It with metallo-plastic the matching problem that the photovoltaic conduction band of parallel three layers of composite multi-layer of main material can effectively solve thermal stress between solar components; Metallo-plastic itself has high corrosion-resistant simultaneously, the long-life (about 200 years of crystallization incubation time can take place by the Arrhenius extrapolation), can avoid the problem that causes welding or polycrystal silicon cell plate fatigability to rupture under the thermal stress fully.Metallo-plastic not only relative cost is cheap; Excellent conductivity; And metallo-plastic itself has stronger anti-oxidant and corrosion resistance, and its surface smoothness requires very to reach easily, can think that PROCESS FOR TREATMENT is easy; Do not relate to the high energy consumption process, make the making of photovoltaic conduction band itself have higher environment compatibility.
Embodiment 32: this execution mode and embodiment 31 are different is that the mass concentration of copper-bath is 180g/L～250g/L.Other is identical with embodiment 31.
Embodiment 33: this execution mode and embodiment 31 are different is that the mass concentration of copper-bath is 210g/L.Other is identical with embodiment 31.
Embodiment 34: this execution mode is different with one of embodiment 31 to 33 is that the concentration of copper-bath is 190g/L.Other is identical with one of embodiment 31 to 33.
Embodiment 35: this execution mode is different with one of embodiment 31 to 34 is that temperature when electroplating is that 32 ℃～48 ℃, current density are 0.55A/dm
2～0.75A/dm
2, electroplating time is 25min～55min.Other is identical with one of embodiment 31 to 34.
Embodiment 36: what this execution mode was different with one of embodiment 31 to 34 is: the temperature during plating is that 40 ℃, current density are 0.65A/dm
2, electroplating time is 30min.Other is identical with one of embodiment 31 to 34.
Embodiment 37: the conflux preparation method of welding carries out the metallo-plastic composite solar photovoltaic of this execution mode according to the following steps: the copper-bath that with concentration is 248g/L is an electroplate liquid; With the width is 20mm; Thickness is negative electrode for the 0.20mm metallo-plastic, is anode with copper, is that 45 ℃, current density are 0.7A/dm in temperature
2Condition under electroplate 25min,, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
The metallo-plastic composite solar photovoltaic of this execution mode welding that confluxes is the cladded type composite construction band that is made up of metallo-plastic 5 and copper layer 4; The width of composite construction band is 20mm; Thickness is 0.21mm, and wherein metallo-plastic 5 is a core, and copper layer 4 is coated on the outer surface of metallo-plastic 5; The thickness of metallo-plastic 5 accounts for 95.2% of composite construction tape thickness, and copper layer 4 is 100% with the contact rate of metallo-plastic 5.
The metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is confluxed to be with copper and welded by the double glazing plate holder; Be placed on temperature and be in 80 ℃ the incubator; And the alternating current of logical 220V, as thermal cycle, behind the maintenance 24h; Find the copper band fracture of confluxing, and the metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is intact.
Embodiment 38: the conflux preparation method of welding can also carry out embodiment 25 described metallo-plastic composite solar photovoltaics according to the following steps: be that 0.05mm～0.248mm metallo-plastic is a negative electrode with thickness; With copper is anode, is immersed in to carry out electroless copper 20min～45min in the chemical bronze plating liquid.Obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
This execution mode has prepared the composite solar photovoltaic welding that confluxes with the chemical plating method that is simple and easy to process; The composite solar photovoltaic of preparation conflux welding with metallo-plastic as the conflux intermediate layer of welding of composite solar photovoltaic; Solar energy voltaic equipment work temperature also is the glass transformation temperature (70 ℃～80 ℃) of metallo-plastic just; Metallo-plastic has the supercooling liquid phase region (Δ T=80K) and the higher stability of broad; So can be at the environment in this temperature range; Even can compress very easily in the liquid environment, plastic working operations such as stretching, distortion, impression, conduction band reaches superplasticity work in this temperature range, the perfect demand that realizes relief of thermal stress; It with metallo-plastic the matching problem that the photovoltaic conduction band of parallel three layers of composite multi-layer of main material can effectively solve thermal stress between solar components; Metallo-plastic itself has high corrosion-resistant simultaneously, the long-life (about 200 years of crystallization incubation time can take place by the Arrhenius extrapolation), can avoid the problem that causes welding or polycrystal silicon cell plate fatigability to rupture under the thermal stress fully.Metallo-plastic not only relative cost is cheap; Excellent conductivity; And metallo-plastic itself has stronger anti-oxidant and corrosion resistance, and its surface smoothness requires very to reach easily, can think that PROCESS FOR TREATMENT is easy; Do not relate to the high energy consumption process, make the making of photovoltaic conduction band itself have higher environment compatibility.
Embodiment 39: what this execution mode and embodiment 38 were different is: the thickness of metallo-plastic is 0.1mm～0.20mm.Other is identical with embodiment 38.
Embodiment 40: what this execution mode and embodiment 38 were different is: the thickness of metallo-plastic is 0.15mm.Other is identical with embodiment 38.
Embodiment 41: what this execution mode was different with one of embodiment 38 to 40 is: chemical bronze plating liquid is prepared by following method: by the copper sulphate mass concentration is that 195g/L～248g/L, mass percentage concentration are that the mass concentration of 98% sulfuric acid is that the concentration of the chloride ion in 172g/L～217g/L, the chemical plating fluid is that 50ppm～100ppm takes by weighing copper sulphate, mass percentage concentration is 98% sulfuric acid and copper chloride and adds in the entry; Mix, obtain chemical bronze plating liquid.Other is identical with one of embodiment 38 to 40.
Embodiment 42: what this execution mode was different with one of embodiment 38 to 40 is: chemical bronze plating liquid is prepared by following method: by the copper sulphate mass concentration is that 200g/L, mass percentage concentration are that the mass concentration of 98% sulfuric acid is that the concentration of the chloride ion in 200g/L, the chemical plating fluid is that 70ppm takes by weighing copper sulphate, mass percentage concentration is 98% sulfuric acid and copper chloride and adds in the entry; Mix, obtain chemical bronze plating liquid.Other is identical with one of embodiment 38 to 40.
Embodiment 43: this execution mode is different with one of embodiment 38 to 42 is that time of electroless copper is 1h～3.5h.Other is identical with one of embodiment 38 to 42.
Embodiment 44: this execution mode is different with one of embodiment 38 to 42 is that time of electroless copper is 2h.Other is identical with one of embodiment 38 to 42.
Embodiment 45: the conflux preparation method of welding carries out the metallo-plastic composite solar photovoltaic of this execution mode according to the following steps: be that 0.18mm, width are negative electrode for the 20mm metallo-plastic with thickness; With copper is anode; Be immersed in and carry out electroless copper 30min in the chemical bronze plating liquid, obtain the metallo-plastic composite solar photovoltaic welding that confluxes; Chemical bronze plating liquid is prepared by following method: by the copper sulphate mass concentration is that 190g/L, mass percentage concentration are that the mass concentration of 98% sulfuric acid is that the concentration of the chloride ion in 210g/L, the chemical plating fluid is that 70ppm takes by weighing copper sulphate, mass percentage concentration is 98% sulfuric acid and copper chloride and adds in the entry; Mix, obtain chemical bronze plating liquid.
The metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is the cladded type composite construction band that is made up of metallo-plastic 5 and copper layer 4; The width of composite construction band is 21mm; Thickness is 0.19mm, and wherein metallo-plastic 5 is a core, and copper layer 4 is coated on the outer surface of metallo-plastic 5; The thickness of metallo-plastic 5 accounts for 94.7% of composite construction tape thickness, and copper layer 4 is 100% with the contact rate of metallo-plastic 5.
The metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is confluxed to be with copper and welded by the double glazing plate holder; Be placed on temperature and be in 80 ℃ the incubator; And the alternating current of logical 220V, as thermal cycle, behind the maintenance 24h; Find the copper band fracture of confluxing, and the metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is intact.
Embodiment 46: the conflux preparation method of welding carries out embodiment 25 described metallo-plastic composite solar photovoltaics according to the following steps: with width is that 1mm～60mm, thickness are that the metallo-plastic plate of 0.05mm～0.27mm is as sandwich layer; It is 0.05mm～0.1mm copper coin that outer surface coats thickness; Join in the calender rollingly, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
This execution mode has prepared the composite solar photovoltaic welding that confluxes with the calendering milling method that is simple and easy to process; The composite solar photovoltaic of preparation conflux welding with metallo-plastic as the conflux intermediate layer of welding of composite solar photovoltaic; Solar energy voltaic equipment work temperature also is the glass transformation temperature (70 ℃～80 ℃) of metallo-plastic just; Metallo-plastic has the supercooling liquid phase region (Δ T=80K) and the higher stability of broad; So can be at the environment in this temperature range; Even can compress very easily in the liquid environment, plastic working operations such as stretching, distortion, impression, conduction band reaches superplasticity work in this temperature range, the perfect demand that realizes relief of thermal stress; It with metallo-plastic the matching problem that the photovoltaic conduction band of parallel three layers of composite multi-layer of main material can effectively solve thermal stress between solar components; Metallo-plastic itself has high corrosion-resistant simultaneously, the long-life (about 200 years of crystallization incubation time can take place by the Arrhenius extrapolation), can avoid the problem that causes welding or polycrystal silicon cell plate fatigability to rupture under the thermal stress fully.Metallo-plastic not only relative cost is cheap; Excellent conductivity; And metallo-plastic itself has stronger anti-oxidant and corrosion resistance, and its surface smoothness requires very to reach easily, can think that PROCESS FOR TREATMENT is easy; Do not relate to the high energy consumption process, make the making of photovoltaic conduction band itself have higher environment compatibility.
Embodiment 47: this execution mode and embodiment 46 are different is that the width of metallo-plastic plate is that 3mm～58mm, thickness are 0.12mm～0.24mm.Other and embodiment 40 six phases are together.
Embodiment 48: this execution mode and embodiment 46 are different is that the width of metallo-plastic plate is that 40mm, thickness are 0.18mm.Other and embodiment 40 six phases are together.
Embodiment 49: this execution mode is different with one of embodiment 46 to 48 is that the thickness of copper coin is 0.06mm～0.09mm.Other is identical with one of embodiment 46 to 48.
Embodiment 50: this execution mode is different with one of embodiment 46 to 48 is that the thickness of copper coin is 0.08mm.Other is identical with one of embodiment 46 to 48.
Embodiment 51: this execution mode is different with one of embodiment 46 to 50 is that the temperature of calender when rolling is 40 ℃～45 ℃, and roll spacing is 0.1～0.25mm, and thin logical number of times is 6～8 times, thin when logical roll spacing constant.Other is identical with one of embodiment 46 to 50.
Embodiment 52: this execution mode is different with one of embodiment 46 to 50 be calender temperature be 42 ℃, roll spacing is 0.18mm, thin logical number of times is 7 times, thin when logical roll spacing constant.Other is identical with one of embodiment 46 to 50.
Embodiment 53: the conflux preparation method of welding carries out the metallo-plastic composite solar photovoltaic of this execution mode according to the following steps: with width is that 2.5mm, thickness are that the metallo-plastic plate of 0.25mm is as sandwich layer; It is the 0.05mm copper coin that outer surface coats thickness, joins in the calender rollingly, and the temperature when rolling is 45 ℃; Roll spacing 0.2mm; Thin logical number of times is 7 times, thin when logical roll spacing constant, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
The metallo-plastic composite solar photovoltaic of this execution mode welding that confluxes is the cladded type composite construction band that is made up of metallo-plastic 5 and copper layer 4; The width of composite construction band is 2.1mm; Thickness is 0.20mm, and wherein metallo-plastic 5 is a core, and copper layer 4 is coated on the outer surface of metallo-plastic 5; The thickness of metallo-plastic 5 accounts for 92.7% of composite construction tape thickness, and copper layer 4 is 99.9% with the contact rate of metallo-plastic 5.
The metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is confluxed to be with copper and welded by the double glazing plate holder; Be placed on temperature and be in 80 ℃ the incubator; And the alternating current of logical 220V, as thermal cycle, behind the maintenance 24h; Find the copper band fracture of confluxing, and the metallo-plastic composite solar photovoltaic of this execution mode preparation welding that confluxes is intact.
Claims (10)
1. the metallo-plastic composite solar photovoltaic welding that confluxes; It is characterized in that the metallo-plastic composite solar photovoltaic welding that confluxes is the parallel three-layer composite structure band that is made up of the first bronze medal layer (1), metallo-plastic layer (2) and the second bronze medal layer (3); The width of composite construction band is 2mm～62mm; Thickness is 0.1mm～0.25mm; In the middle of wherein metallo-plastic layer (2) was positioned at, the first bronze medal layer (1) and the second bronze medal layer (3) laid respectively at the upper and lower both sides of metallo-plastic layer (2), and the thickness of metallo-plastic layer (2) accounts for 50%～99% of composite construction tape thickness; The contact rate of the first bronze medal layer (1) and metallo-plastic layer (2) greater than the contact rate of 99%, the second bronze medal layer (3) and metallo-plastic layer (2) greater than 99%.
2. the metallo-plastic composite solar photovoltaic according to claim 1 welding that confluxes is characterized in that metallo-plastic (2) is cerium-base alloy Ce
70Al
10Cu
20Or Ce
70Al
10Cu
20Nb
2
3. the conflux preparation method of welding of metallo-plastic composite solar photovoltaic as claimed in claim 1; It is characterized in that the conflux preparation method of welding of metallo-plastic composite solar photovoltaic carries out according to the following steps: be electroplate liquid with the copper-bath; With the metallo-plastic is negative electrode; With copper is anode, is that 30 ℃～50 ℃, current density are 0.5A/dm in temperature
2～0.8A/dm
2Condition under electroplate 20min～60min, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
4. the conflux preparation method of welding of metallo-plastic composite solar photovoltaic as claimed in claim 1; It is characterized in that the conflux preparation method of welding of metallo-plastic composite solar photovoltaic carries out according to the following steps: be that 0.05mm～0.248mm metallo-plastic is a negative electrode with thickness; With copper is anode, is immersed in to carry out electroless copper 40min～60min in the chemical plating fluid, obtains composite board; Cut into the tape that width is 2mm～62mm then, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
5. the conflux preparation method of welding of metallo-plastic composite solar photovoltaic as claimed in claim 1; It is characterized in that the conflux preparation method of welding of metallo-plastic composite solar photovoltaic carries out according to the following steps: with thickness is that the metallo-plastic plate of 0.15mm～0.25mm is as the intermediate layer; Upper and lower cladding thickness is 0.05mm～0.1mm copper coin; Join in the calender rolling; Obtain composite board, cut into the tape that width is 2mm～62mm then, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
6. the metallo-plastic composite solar photovoltaic welding that confluxes; It is characterized in that the metallo-plastic composite solar photovoltaic welding that confluxes is the cladded type composite construction band that is made up of metallo-plastic (5) and copper layer (4); The width of composite construction band is 2mm～62mm; Thickness is 0.1mm～0.25mm, and wherein metallo-plastic (5) is a core, and copper layer (4) is coated on the outer surface of metallo-plastic (5); The thickness of metallo-plastic (5) accounts for 50%～99% of composite construction tape thickness, and the contact rate of copper layer (4) and metallo-plastic (5) is greater than 99%.
7. the metallo-plastic composite solar photovoltaic according to claim 6 welding that confluxes is characterized in that metallo-plastic (5) is cerium-base alloy Ce
70Al
10Cu
20Or Ce
70Al
10Cu
20Nb
2
8. the conflux preparation method of welding of metallo-plastic composite solar photovoltaic as claimed in claim 6; It is characterized in that the conflux preparation method of welding of metallo-plastic composite solar photovoltaic carries out according to the following steps: be electroplate liquid with the copper-bath; With thickness is that 0.05mm～0.248mm metallo-plastic is a negative electrode; With copper is anode, is that 30 ℃～50 ℃, current density are 0.5A/dm in temperature
2～0.8A/dm
2Condition under electroplate 20min～60min, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
9. the conflux preparation method of welding of metallo-plastic composite solar photovoltaic as claimed in claim 6; It is characterized in that the conflux preparation method of welding of metallo-plastic composite solar photovoltaic carries out according to the following steps: be that 0.05mm～0.248mm metallo-plastic is a negative electrode with thickness; With copper is anode; Be immersed in and carry out electroless copper 20min～45min in the chemical bronze plating liquid, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
10. the conflux preparation method of welding of metallo-plastic composite solar photovoltaic as claimed in claim 6; It is characterized in that the conflux preparation method of welding of metallo-plastic composite solar photovoltaic carries out according to the following steps: with width is that 1mm～60mm, thickness are that the metallo-plastic plate of 0.05mm～0.27mm is as sandwich layer; It is 0.05mm～0.1mm copper coin that outer surface coats thickness; Join in the calender rollingly, obtain the metallo-plastic composite solar photovoltaic welding that confluxes.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854319A (en) * | 2005-04-21 | 2006-11-01 | 中国科学院物理研究所 | Cerium-based non-crystalline metal plastics |
| CN1957479A (en) * | 2004-05-21 | 2007-05-02 | 株式会社新王材料 | Electrode wire for solar battery |
| CN101444886A (en) * | 2008-12-19 | 2009-06-03 | 烟台孚信达双金属股份有限公司 | Method for producing a copper clad aluminum flat wire with small cross section (2.0*4.0 mm) and product therefrom |
-
2011
- 2011-07-13 CN CN201110196019A patent/CN102324441A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1957479A (en) * | 2004-05-21 | 2007-05-02 | 株式会社新王材料 | Electrode wire for solar battery |
| CN1854319A (en) * | 2005-04-21 | 2006-11-01 | 中国科学院物理研究所 | Cerium-based non-crystalline metal plastics |
| CN101444886A (en) * | 2008-12-19 | 2009-06-03 | 烟台孚信达双金属股份有限公司 | Method for producing a copper clad aluminum flat wire with small cross section (2.0*4.0 mm) and product therefrom |
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Application publication date: 20120118 |