CN112750917B - Battery assembly production method and battery assembly - Google Patents
Battery assembly production method and battery assembly Download PDFInfo
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- CN112750917B CN112750917B CN201911047341.3A CN201911047341A CN112750917B CN 112750917 B CN112750917 B CN 112750917B CN 201911047341 A CN201911047341 A CN 201911047341A CN 112750917 B CN112750917 B CN 112750917B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1804—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof comprising only elements of Group IV of the Periodic System
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/0248—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by their semiconductor bodies
- H01L31/0352—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
- H01L31/035272—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions characterised by at least one potential jump barrier or surface barrier
- H01L31/035281—Shape of the body
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/043—Mechanically stacked PV cells
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/547—Monocrystalline silicon PV cells
Abstract
The invention provides a production method of a battery assembly and the battery assembly, and relates to the technical field of solar photovoltaics. The method comprises the following steps: manufacturing a circular battery piece by taking a circular silicon wafer as a silicon substrate; cutting the circular battery piece to obtain a plurality of slices; the slicing includes: a first slice and a second slice; the edge of the first slice comprises: a straight edge and an arc edge; the edge of the second slice comprises: two straight edges and two arc edges; manufacturing a power generation battery assembly based on the plurality of second slices; and manufacturing a decorative battery component based on the plurality of first cut sheets. This application is direct based on circular silicon chip processing, need not to cut away the silicon rod, and each section of circular silicon chip has all been used for processing to form battery pack, and it is extravagant not have the silicon rod. The radian on the arc line edge of the second slice is small, the conversion efficiency of the power generation battery assembly obtained by manufacturing is high, the radian on the arc line edge of the first slice is large, and the decorative battery assembly manufactured by the first slice is good in appearance effect.
Description
Technical Field
The invention relates to the technical field of solar photovoltaics, in particular to a production method of a battery assembly and the battery assembly.
Background
In the solar photovoltaic industry, a battery module formed by packaging battery cells and the like can improve the power of the photovoltaic module in a unit area, and further reduce the cost of a solar battery, so that the solar battery is widely applied.
At present, square silicon wafers are generally used as silicon substrates to produce cell modules in order to improve conversion efficiency.
The inventor finds that the prior art proposal has the following disadvantages in the process of studying the prior art: since the cross section of the silicon rod is generally circular, a large number of silicon rods need to be cut off in order to obtain square silicon wafers, and the cut silicon rods are generally discarded as waste products or recycled, so that the waste of resources is serious.
Disclosure of Invention
The invention provides a battery pack production method, a battery piece and a battery pack, and aims to reduce resource waste in the process of manufacturing the battery pack.
In a first aspect, an embodiment of the present invention provides a battery assembly production method, including:
manufacturing a circular battery piece by taking a circular silicon wafer as a silicon substrate;
cutting the circular battery piece to obtain a plurality of slices; the slicing includes: a first slice and a second slice; the edge of the first slice comprises: a straight edge and an arc edge; the edge of the second slice comprises: at least two straight edges;
Manufacturing a power generation battery assembly based on the plurality of second slices;
and manufacturing a decorative battery component based on the plurality of first cut sheets.
Optionally, the at least two straight sides include: a first linear side and a second linear side; the edge of the second slice further comprises: a first arc edge and a second arc edge; the power generation battery assembly manufactured based on the plurality of second slices includes:
placing the first straight line edge of the second slice adjacent to the second straight line edge of the adjacent second slice, and connecting the adjacent parts to form a first battery string;
arranging a plurality of first battery strings along a first direction to obtain a battery piece array; the first direction is parallel to the first straight line side; the first arc line edge of the first battery string is arranged adjacent to the second arc line edge of the adjacent first battery string;
and laminating the cell array to obtain the power generation cell assembly.
Optionally, the placing the first straight edge of the second slice adjacent to the second straight edge of the adjacent second slice and connecting the adjacent portions to form a first battery string includes:
overlapping the first straight line edge of the second slice with the second straight line edge of the adjacent second slice, and connecting the overlapped parts to form a first battery string;
And/or the presence of a gas in the atmosphere,
arranging a first straight line edge of the second slice adjacent to a second straight line edge of the adjacent second slice with a gap;
and placing a welding strip at the gap, and welding the second section and the adjacent second section based on the welding strip to form a first battery string.
Optionally, the edge of the second slice further includes: a first arc edge and a second arc edge; the power generation battery assembly manufactured based on the plurality of second slices includes:
placing the first arc line edge of the second slice adjacent to the second arc line edge of the adjacent second slice, and connecting the adjacent parts to form a second battery string;
arranging the second battery strings along a second direction to obtain a battery piece array; the second direction is perpendicular to a straight line side of the second slice;
and laminating the cell array to obtain the power generation cell assembly.
Optionally, the placing the first arc edge of the second slice adjacent to the second arc edge of the adjacent second slice and connecting the adjacent portions to form a second battery string includes:
overlapping the first arc line edge of the second slice with the second arc line edge of the adjacent second slice, and connecting the overlapped parts to form a second battery string;
And/or the presence of a gas in the gas,
arranging the first arc line edge of the second slice and the adjacent second arc line edge of the second slice with a gap;
and placing a welding strip at the gap, and welding the second section and the adjacent second section based on the welding strip to form a second battery string.
Optionally, the manufacturing of the decorative battery assembly based on the plurality of first cut sheets includes:
placing the straight line edge of the first slice adjacent to the arc line edge of the adjacent first slice and connecting the adjacent parts to form a third battery string;
arranging a plurality of third battery strings along a third direction to obtain a wavy battery piece array; the third direction is parallel to the straight line edge of the first slice;
and laminating the wavy battery piece array to obtain the decorative battery component.
Optionally, the placing the straight edge of the first slice adjacent to the arc edge of the adjacent first slice and connecting the adjacent portions to form a third battery string includes:
overlapping the straight line edge of the first slice and the arc line edge of the adjacent first slice, and connecting the overlapped parts to form a third battery string;
And/or the presence of a gas in the gas,
the straight line edge of the first slice is adjacent to the arc line edge of the adjacent first slice with a gap;
and placing a welding strip at the gap, and welding the first section and the adjacent first section based on the welding strip to form a third battery string.
Optionally, the connecting the overlapping portions includes:
welding the overlapped part by using a welding strip; alternatively, the overlapping portions are bonded using conductive glue.
Optionally, the cutting the circular battery piece to obtain a plurality of cut pieces includes:
cutting the circular battery piece by using three cutting lines to obtain four cut pieces; the three cutting lines include: the cutting line comprises a first cutting line passing through the circle center and two second cutting lines parallel to the first cutting line; the two second cutting lines are symmetrically distributed on two sides of the first cutting line, and the distance between the first cutting line and the second cutting line is
The radius of the circular battery piece.
In a second aspect, embodiments of the present invention provide a battery pack produced by the battery pack production method described in any one of the above.
In a third aspect, an embodiment of the present invention provides a battery pack production apparatus, including: an interface, a bus, a memory and a processor, wherein the interface, the memory and the processor are connected through the bus, the memory is used for storing an executable program, and the processor is configured to run the executable program to realize the steps of the battery pack production method according to any one of the preceding claims.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where an executable program is stored on the computer-readable storage medium, and the executable program is executed by a processor to implement the steps of the battery assembly production method according to any one of the foregoing descriptions.
In the embodiment of the invention, a circular silicon wafer is used as a silicon substrate to manufacture a circular battery piece; cutting the circular battery piece to obtain a plurality of slices; the slicing includes: a first slice and a second slice; the edge of the first slice comprises: a straight edge and an arc edge; the edge of the second slice comprises: two straight edges and two arc edges; manufacturing a power generation battery assembly based on the plurality of second slices; and manufacturing a decorative battery component based on the plurality of first cut sheets. In the prior art, a square silicon wafer is generally used as a silicon substrate to produce a battery assembly in order to improve conversion efficiency. Since the cross section of the silicon rod is generally circular, a large number of silicon rods need to be cut off in order to obtain square silicon wafers, and the cut silicon rods are generally discarded as waste or re-melted and re-manufactured, so that the resource loss is serious. In the application, the silicon rod does not need to be cut off directly based on the processing of the circular silicon wafer, and each slice of the circular silicon wafer is used for processing to form a battery component, so that the silicon rod or the resource is not wasted. Simultaneously, the radian on the pitch arc limit of second section is less, and at the in-process of making electricity generation battery pack, the white space of leaving between the adjacent second section is less or do not leave the white space, and the electricity generation battery pack conversion efficiency who obtains is high, and the radian on the pitch arc limit of first section is great, and for the decoration battery pack by square piece preparation, the pleasing to the eye effect of the decoration battery pack by first section preparation is good.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 shows a flow chart of the steps of a method of producing a battery assembly in an embodiment of the invention;
fig. 2 shows a schematic view of a circular cell in an embodiment of the invention;
fig. 3 shows a schematic view of a cut circular cell piece in an embodiment of the invention;
fig. 4 shows a schematic view of a further cut round cell piece in an embodiment of the invention;
FIG. 5 is a schematic diagram illustrating a circular battery piece cut into slices according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating an arc camber change segmentation of a circle in an embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating a circular battery piece cut into slices according to another embodiment of the present invention;
FIG. 8 illustrates a flow chart for making a power generating cell assembly from a second cut sheet in an embodiment of the present invention;
FIG. 9 illustrates a schematic diagram of a second slice overlay placement in an embodiment of the present invention;
FIG. 10 shows a schematic view of yet another second slice positioned adjacent to and with a gap in an embodiment of the invention;
fig. 11 shows a schematic diagram of a first battery string in an embodiment of the invention;
fig. 12 is a schematic diagram of a battery array formed of a first battery string in an embodiment of the invention;
fig. 13 is an enlarged schematic view of a battery array formed of a first battery string in an embodiment of the present invention;
FIG. 14 shows a flow chart of yet another embodiment of the present invention for making a power generating cell assembly from a second cut sheet;
FIG. 15 shows a schematic view of another second slice overlapping placement in an embodiment of the invention;
FIG. 16 shows a schematic view of yet another embodiment of the present invention in which second slices are placed adjacent to and spaced apart from each other;
fig. 17 shows a schematic diagram of a second battery string in an embodiment of the invention;
fig. 18 is a schematic diagram of a battery array formed of a second battery string in an embodiment of the present invention;
FIG. 19 illustrates a flow chart for making a decorated battery assembly from a first cut sheet in an embodiment of the present invention;
FIG. 20 shows a schematic view of a first slice being placed overlapping in an embodiment of the invention;
FIG. 21 illustrates a schematic view of a first cut sheet joined with solder ribbon in an embodiment of the present invention;
fig. 22 shows a schematic diagram of a third battery string in an embodiment of the invention;
FIG. 23 shows a schematic view of an array of corrugated battery pieces in an embodiment of the invention;
fig. 24 is a schematic structural diagram of a battery pack production apparatus according to an embodiment of the present invention.
Description of reference numerals:
11-primary grid, 12-secondary grid, 111-first slice, 1111-straight edge of first slice, 1112-arc edge of first slice, 112-second slice, 1121-first straight edge of second slice, 1122-second straight edge of second slice, 1123-first arc edge of second slice, 1124-second arc edge of second slice, 15-gap, 13-first battery string, 18-second battery string, 20-solder strip, 201-arc of solder strip, 1-interface, 2-processor, 3-memory, 4-bus.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 shows a flow chart of steps of a method for producing a battery assembly according to an embodiment of the present invention, and as shown in fig. 1, the method may include the steps of:
step 101: and (3) taking the circular silicon wafer as a silicon substrate to manufacture a circular battery piece.
In the embodiment of the invention, the round silicon wafer is subjected to the working procedures of cleaning, texturing, diffusion, etching, film coating, printing, sintering and the like to form the round battery piece. The circular Cell can be a back contact solar Cell, a heterojunction solar Cell, a PERC (Passivated emitter and Rear Cell), an N-type Cell, a P-type Cell, a bifacial Cell, a Topcon (tunnel oxide Passivated contact solar Cell) and the like. In the embodiment of the present invention, this is not particularly limited.
Referring to fig. 2, fig. 2 is a schematic view of a circular battery cell in an embodiment of the present invention. In fig. 2, 11 may be a main gate, and 12 may be a sub-gate. That is, in fig. 2, the thick lines may be the main gate lines, and the thin lines may be the sub gate lines.
Step 102: cutting the circular battery piece to obtain a plurality of slices; the slicing includes: a first slice and a second slice; the edge of the first slice comprises: a straight edge and an arc edge; the edge of the second slice comprises: at least two straight edges.
In the embodiment of the present invention, the circular battery piece may be cut by laser or the like to obtain a plurality of cut pieces. The number of the cut pieces to be cut from one circular battery piece is not particularly limited.
Referring to fig. 3, fig. 3 shows a schematic diagram of a cut circular battery piece in an embodiment of the invention. In fig. 3, one circular cell piece was cut into 7 cut pieces. Referring to fig. 4, fig. 4 shows a schematic diagram of another cut circular cell piece in an embodiment of the invention. In fig. 4, one circular cell piece was cut into 8 cut pieces.
In an embodiment of the present invention, the slice may include a first slice and a second slice, and the edge of the first slice may include an arc edge and a straight edge. The edge of the second slice may include: at least two straight edges. The number of the straight edges included in the edge line of the second slice is not particularly limited in the embodiment of the present invention. Then the arc of the arc edge of the first slice is larger relative to the second slice.
Referring to fig. 5, fig. 5 is a schematic diagram illustrating a cut piece obtained by cutting a circular battery piece according to an embodiment of the present invention. 111 in fig. 5 may be a first slice and 112 may be a second slice. The sideline of this second section comprises two straight line limits and two pitch arc limits.
In this embodiment of the present invention, optionally, step 102 may include: cutting the circular battery piece by using three cutting lines to obtain four cut pieces; the three cutting lines include: the cutting line comprises a first cutting line passing through the circle center and two second cutting lines parallel to the first cutting line; the two second cutting lines are symmetrically distributed on two sides of the first cutting line, and the distance between the first cutting line and the second cutting line is
The radius of the circular battery piece.
Specifically, referring to fig. 6, fig. 6 shows a schematic diagram of segmentation of a circle according to an embodiment of the present invention. The upper half of the circumference is divided into three parts at the intersection point M of a line L1, which makes an angle of 45 ° with the diameter AB of the circle, and at the point N, which is point-symmetrical with M about the perpendicular bisector L2 of the diameter AB. The first part is an arc MN, the second part is an arc MA, and the third part is an arc NB. Derivation of the tangent to the arc can result in M and N reaching critical values with the reciprocal of the C arc tangent from M to the apex of the circle being-1 to- ∞. That is, the curvature of the arc from the point M to the vertex C of the circle becomes sharply largerSimilarly, the curvature of the arc from point N to the apex C of the circle, which is symmetrical to the curvature, becomes sharply larger. While the reciprocal of the tangent to arc NB is 0 to-1, with less change in radian. Similarly, the reciprocal of the tangent to MA, which is symmetrical to it, is 0 to-1, and the radian change is small. The straight line MN is parallel to the diameter AB of the circle, and the distance between the straight line MN and the diameter AB of the circle is 
R of the circle.
And cutting the circular battery piece by using a first cutting line penetrating through the circle center, and equally dividing the circular battery piece into two half pieces. By a distance from the first cutting line of
The second cutting line of the radius of the circular battery piece cuts each half piece, and each half piece is cut into two cut pieces. Each of the two half-cut slices includes a first slice and a second slice. The pitch arc limit of the sideline of the first section that obtains just in time corresponds with above-mentioned pitch arc MN, and the radian of the pitch arc of the sideline of the first section sharply becomes, and then follow-up can obtain decorative battery assembly with first slice preparation, for the decorative battery assembly by square piece preparation, the decorative battery assembly by first slice preparation is pleasing to the eye effectual. The radian on the pitch arc limit of second section is less, and at the in-process of preparation electricity generation battery pack, the blank space between the adjacent second section is less or do not have the blank space, and the electricity generation battery pack conversion efficiency who obtains is high, and the radian serial number on the pitch arc limit of first section is great, and the pleasing to the eye effect of the decoration battery pack who makes is better.
Referring to fig. 7, fig. 7 is a schematic diagram illustrating a cut piece obtained by cutting a circular battery piece according to another embodiment of the present invention. The arc of the sideline of the first tab 111 corresponds to the arc MN, and the arc of the sideline of the first tab 111 increases sharply. While the arc of the second slice 112 edge is less.
In the embodiment of the present invention, alternatively, only the two second cutting lines may be used to cut the circular battery piece to obtain three cut pieces, wherein two first cut pieces and one second cut piece are used. Or, on the basis that the circular battery piece is cut by the three cutting lines to obtain four slices, the first slice is further cut, and then different parts are manufactured into the power generation battery assembly or the decoration battery assembly, which is not particularly limited in the embodiment of the present invention.
Step 103: and manufacturing a power generation cell assembly based on the plurality of second slices.
In the embodiment of the present invention, the power generation cell module may be fabricated using the same second cut sheet, or a power generation cell module may be fabricated using a different second cut sheet. Specifically, the power generation cell assembly is manufactured based on a plurality of second slices through the processes of stacking connection, arrangement, lamination and the like. In the embodiment of the present invention, this is not particularly limited.
For example, a plurality of second slices 112 in the second row in fig. 5 may be used to produce a power generation cell module, or a plurality of second slices 112 in the second, third, fourth, fifth, sixth, and seventh rows in fig. 5 may be used to produce a power generation cell module.
In the embodiment of the present invention, the power generation cell assembly may be a cell assembly that needs to be used mainly as a power source. The radian of the arc line edge of each second slice is small, and in the process of manufacturing the power generation battery pack, the blank gaps between the adjacent second slices are small or have no blank gaps, so that the obtained power generation battery pack is high in conversion efficiency.
In this embodiment of the present invention, optionally, at least two straight lines of the second slice include: a first linear side and a second linear side. The lengths of the first straight side and the second straight side may be the same or different, and are not particularly limited in the embodiment of the present invention.
For example, referring to FIG. 5, the edge of the second slice 112 is composed of two straight edges and two curved edges. The two straight sides include: a first straight side 1121 and a second straight side 1122, the length of the first straight side 1121 being less than the length of the second straight side 1122.
In the embodiment of the present invention, referring to fig. 8, fig. 8 is a flowchart illustrating a process of manufacturing a power generation cell assembly using the second cut sheet in the embodiment of the present invention. Optionally, the step 103 may include:
step S1: and placing the first straight line edge of the second slice adjacent to the second straight line edge of the adjacent second slice, and connecting the adjacent parts to form a first battery string.
Step S2: arranging a plurality of first battery strings along a first direction to obtain a battery piece array; the first direction is parallel to the first straight line side; the first arc line edge of the first battery string is arranged adjacent to the second arc line edge of the adjacent first battery string.
Step S3: and laminating the cell array to obtain the power generation cell assembly.
Specifically, the first straight edge of one second slice is placed adjacent to the second straight edge of an adjacent second slice. The adjacent placement may be that the first straight-line edge of one second slice is overlapped with the second straight-line edge of the adjacent second slice, or the first straight-line edge of one second slice is adjacent to the second straight-line edge of the adjacent second slice with a gap. In the embodiment of the present invention, this is not particularly limited.
For example, referring to fig. 9, fig. 9 shows a schematic diagram of the overlapping placement of one second slice in an embodiment of the invention, and the second straight-line edge 1122 of one second slice 112 in fig. 9 is placed overlapping the first straight-line edge of an adjacent second slice 112. Referring to fig. 10, fig. 10 shows a schematic diagram of a second slice in an embodiment of the present invention, in which a first straight edge 1121 of one second slice 112 is disposed adjacent to a second straight edge 1122 of an adjacent second slice 112 with a gap 15 therebetween.
Adjacent portions are connected to form a first battery string. Adjacent portions may be connected here by solder strips or conductive glue. In the embodiment of the present invention, this is not particularly limited.
For example, referring to fig. 11, fig. 11 shows a schematic diagram of a first battery string in an embodiment of the present invention.
The plurality of first battery strings are arranged along the first direction to obtain the battery piece array, the first direction is parallel to the first straight line edge of one second slice in the first battery strings, and then the two adjacent first battery strings pass through the arc line part, so that the blank clearance of the adjacent first battery strings can be covered, the blank clearance between the first battery strings is reduced, and the generating efficiency can be improved to a great extent. Simultaneously, because the first pitch arc limit of first battery cluster and the adjacent second pitch arc limit of first battery cluster are adjacent arranges, and then can form the big little margin clearance in the middle of both ends between two adjacent first battery clusters, be convenient for place the solder strip in the margin clearance.
For example, referring to fig. 12, fig. 12 shows a schematic diagram of a battery array formed by first battery strings in an embodiment of the present invention. In fig. 12, 1121 is a first straight side of a second slice, L3 indicates a first direction, and the first direction L3 is parallel to the first straight side 1121 of a second slice in the first string. Referring to fig. 13, fig. 13 is an enlarged schematic view of a battery array formed by first battery strings in an embodiment of the present invention. In fig. 13, the left first battery string 13 may cover the blank space of the first battery string 13 shown by the right dashed line frame adjacent to the left first battery string 13, such as the blank space 15 of the right first battery string 13 adjacent to the left first battery string 13, partially or entirely by the arc portion 131 of the first battery string 13 on the side close to the right first battery string 13. Meanwhile, the right first battery string 13 can partially or completely cover the blank clearance of the left first battery string 13 adjacent to the right first battery string 13, for example, the blank clearance 15 of the right first battery string 13 adjacent to the left first battery string 13, through the arc line part 141 of the right first battery string 13 close to the left first battery string 13, so that the blank clearance between the adjacent first battery strings is greatly reduced.
And laminating the battery piece array by using packaging materials such as backboard glass, packaging adhesive films and the like to obtain the power generation battery assembly.
Arrange a plurality of first battery cluster along first direction, obtain the battery piece array, first direction is parallel with the first straight line limit of a second sliced in the first battery cluster, and then two adjacent first battery clusters pass through the arc line portion, can carry out part or whole cover with the blank clearance of adjacent first battery cluster, reduce the blank clearance between each first battery cluster, obtain power generation battery pack with this battery piece array encapsulation, because two adjacent first battery clusters pass through the arc line portion, can carry out part or whole cover with the blank clearance of its adjacent first battery cluster, and then can follow to a great extent and promote power generation battery pack's generating efficiency. Simultaneously, because the first pitch arc limit of first battery cluster and the adjacent second pitch arc limit of first battery cluster are adjacent arranges, and then can form the big little margin clearance in the middle of both ends between two adjacent first battery clusters, be convenient for place the solder strip in the margin clearance.
In an embodiment of the present invention, the step S1 may include: overlapping the first straight line edge of the second slice with the second straight line edge of the adjacent second slice, and connecting the overlapped parts to form a first battery string; and/or arranging a first straight line side of the second slice adjacent to a second straight line side of the adjacent second slice with a gap; and placing a welding strip at the gap, and welding the second section and the adjacent second section based on the welding strip to form a first battery string.
Specifically, in the case where the first straight line edge of the second slice and the second straight line edge of the adjacent second slice overlap each other, the overlapping portion may be welded using a solder tape to form the first battery string, or the overlapping portion may be adhered using a conductive adhesive to form the first battery string. And under the condition that the first straight line edge of the second slice is adjacent to the second straight line edge of the adjacent second slice and a gap is reserved, placing a welding strip at the position of the reserved gap, and welding the two adjacent second slices by using the welding strip to form the first battery string.
In this embodiment of the present invention, optionally, the edge of the second slice further includes: a first arc edge and a second arc edge. The lengths or radians of the first arc edge and the second arc edge may be the same or different, and are not particularly limited in the embodiments of the present invention.
For example, referring to fig. 5, the edge line of the second slice 112 is composed of two straight line edges and a first arc edge 1123 and a second arc edge 1124, and the length and the radian of the first arc edge 1123 are correspondingly the same as those of the second arc edge 1124.
In the embodiment of the present invention, referring to fig. 14, fig. 14 is a flowchart showing a power generation cell assembly made of a second cut sheet in still another embodiment of the present invention. Optionally, the step 103 may include:
Step S4: and placing the first arc edge of the second slice adjacent to the second arc edge of the adjacent second slice and connecting the adjacent parts to form a second battery string.
Step S5: arranging the plurality of second battery strings along a second direction to obtain a battery piece array; the second direction is perpendicular to a straight side of the second slice.
Step S6: and laminating the cell array to obtain the power generation cell assembly.
Specifically, the first arc edge of one second slice is placed adjacent to the second arc edge of the adjacent second slice. The adjacent placement may be that the first arc edge of one second slice overlaps with the second arc edge of the adjacent second slice, or the first arc edge of one second slice is adjacent to the second arc edge of the adjacent second slice with a gap. In the embodiment of the present invention, this is not particularly limited.
For example, referring to FIG. 15, FIG. 15 shows a schematic diagram of another second slice overlapping placement in an embodiment of the invention, where the first arc edge 1123 of one second slice 112 is placed overlapping the second arc edge 1124 of an adjacent second slice 112 in FIG. 15. Referring to fig. 16, fig. 16 shows a schematic view of the adjacent and spaced placement of yet another second slice in an embodiment of the present invention, wherein the first arc edge 1123 of one second slice 112 is adjacent and spaced 15 from the second arc edge 1124 of the adjacent second slice 112 in fig. 16.
In the embodiment of the invention, the two adjacent second slices pass through the arc part, so that the blank gaps of the adjacent second slices can be covered, the blank gaps among the second slices are reduced, and the power generation efficiency can be improved to a great extent. Simultaneously, if the first pitch arc limit of second section is adjacent with the second pitch arc limit of adjacent second section and leaves the clearance and place, and then can form the little white clearance in the middle of the big end between two adjacent second sections, be convenient for place the solder strip in the white clearance.
Adjacent portions are connected to form a first battery string. Adjacent portions may be connected here by solder strips or conductive glue. In the embodiment of the present invention, this is not particularly limited.
For example, referring to fig. 17, fig. 17 shows a schematic diagram of a second battery string in an embodiment of the present invention.
The plurality of second cell strings are arranged along the second direction to obtain the cell array, the second direction is perpendicular to the straight line edge of one second slice in the second cell strings, and then the two adjacent second cell strings are spliced through straight lines, the blank gaps between the second cell strings are small or basically free of the blank gaps, and the generating efficiency can be improved to a great extent.
For example, referring to fig. 18, fig. 18 shows a schematic diagram of a battery array formed by second battery strings in an embodiment of the present invention. In fig. 18, 1121 is a straight side of a second slice, L4 indicates a second direction, and the second direction L4 is perpendicular to the straight side 1121 of a second slice in the second string. Furthermore, the two adjacent second battery strings 18 are all spliced through straight lines, and the blank gaps between the second battery strings are small or basically have no blank gaps, so that the power generation efficiency can be improved to a great extent.
Similarly, the above-mentioned cell array may be laminated with an encapsulating material such as back sheet glass, an encapsulating film, or the like, to obtain a power generating cell module.
Two adjacent second slices pass through the arc line part, can cover the blank clearance of adjacent second slice, reduce the blank clearance between each second slice, can follow to a great extent and promote the generating efficiency. Simultaneously, if the first pitch arc limit of second section is adjacent with the second pitch arc limit of adjacent second section and leaves the clearance and place, and then can form the little white clearance in the middle of the big end between two adjacent second sections, be convenient for place the solder strip in the white clearance. And then two adjacent second battery strings are spliced through straight lines, and the blank gaps between the second battery strings are smaller or basically have no blank gaps, so that the generating efficiency can be improved to a great extent.
In an embodiment of the present invention, the step S4 may include: overlapping the first arc line edge of the second slice with the second arc line edge of the adjacent second slice, and connecting the overlapped parts to form a second battery string; and/or, the first arc edge of the second slice is adjacent to the second arc edge of the adjacent second slice with a gap; and placing a welding strip at the gap, and welding the second section and the adjacent second section based on the welding strip to form a second battery string.
Specifically, in the case where the first arc edge of the second segment overlaps the second arc edge of the adjacent second segment, the overlapping portion may be welded by a solder ribbon to form the second battery string, or the overlapping portion may be adhered by a conductive adhesive to form the second battery string. And under the condition that the first arc line edge of the second slice is adjacent to the second arc line edge of the adjacent second slice and a gap is reserved, a welding strip is placed at the position of the reserved gap, and the two adjacent second slices are welded by the welding strip to form a second battery string. Simultaneously, can form the big little white clearance in middle of both ends between two adjacent second sections, be convenient for place the solder strip in the white clearance.
In the embodiment of the present invention, the series connection or the parallel connection may be performed in the process of forming the first battery string or the second battery string. For example, 2 of the 8 second slices, or 4 of the 8 second slices, or 8 of the 8 second slices, etc. are used, which is not particularly limited in the embodiment of the present invention.
In the embodiment of the invention, in the process of manufacturing the power generation cell assembly based on a plurality of second slices, attention needs to be paid to the positive electrode bus bar of one second slice and the negative electrode bus bar of the adjacent second slice to realize the collection of current.
In an embodiment of the present invention, in the process of forming the second cell string, the main grid may be disposed in the middle of the second slice, parallel to the first straight side or the second straight side of the second slice. In the embodiment of the present invention, this is not particularly limited.
In the embodiment of the present invention, since two adjacent second slices are connected by the arc portion in the process of forming the second battery string, the bus bar or bus bar for the second slice forming the second battery string may be disposed at the arc portion of the second slice.
Step 104: and manufacturing a decorative battery component based on the plurality of first cut sheets.
In the embodiment of the invention, the decorative battery component can be manufactured by using the same first cut sheet, or can be manufactured by using different first cut sheets. Specifically, the decorative battery assembly is manufactured based on a plurality of first slices through the processes of stacking connection, arrangement, lamination and the like. In the embodiment of the present invention, this is not particularly limited.
For example, the decorated battery assembly may be fabricated using a plurality of first tabs 111 in the first row of fig. 5, or fabricated using a plurality of first tabs 111 in the first and last rows of fig. 5.
In the embodiment of the invention, the decorative battery pack can be a battery pack which is required to be mainly used as a decoration rather than a power supply. For example, a battery pack as a decorative curtain wall may be considered as a decorative battery pack.
The radian on the arc line edge of the first slice is large, and compared with the decorative battery assembly made of square slices, the decorative battery assembly made of the first slice has good attractive effect and decorative effect.
In an embodiment of the present invention, optionally, referring to fig. 19, fig. 19 shows a flowchart of a method for manufacturing a decorated battery assembly from a first cut sheet in an embodiment of the present invention. The step 104 may include:
Step S7: and placing the straight line edge of the first slice adjacent to the arc line edge of the adjacent first slice and connecting the adjacent parts to form a third battery string.
Step S8: arranging a plurality of third battery strings along a third direction to obtain a wavy battery piece array; the third direction is parallel to the straight edge of the first slice.
Step S9: and laminating the wavy battery piece array to obtain the decorative battery component.
Specifically, the straight line edge of one first slice is placed adjacent to the arc line edge of the adjacent first slice. The adjacent placement may be that the straight edge of one first slice overlaps the curved edge of the adjacent first slice, or the straight edge of one first slice is adjacent to the curved edge of the adjacent first slice with a gap. In the embodiment of the present invention, this is not particularly limited.
For example, referring to fig. 20, fig. 20 illustrates a schematic view of an overlapping placement of first slices, in which the straight side 1111 of one first slice 111 in fig. 20 overlaps the curved side 1112 of an adjacent first slice 111.
And connecting the adjacent portions to form a third cell string. Adjacent portions may be connected here by solder strips or conductive glue. In the embodiment of the present invention, this is not particularly limited.
In the embodiment of the invention, the straight edge of one first slice is arranged adjacent to the arc edge of the adjacent first slice, and each first slice can be welded by adopting a special welding strip with one side being an arc and one side being a straight line. The arc line part of this solder strip is unanimous with the arc line limit arc degree that first slice is waited to weld, is convenient for solder strip and the complete laminating of first sliced arc line part.
For example, referring to fig. 21, fig. 21 illustrates a schematic view of a first cut sheet connected by solder strips in an embodiment of the present invention. In fig. 21, the left view is a schematic view of the solder ribbon 20 connecting the first cut piece 111. The right drawing is an enlarged view of the solder ribbon 20. The arc portion 201 of the solder strip 20 corresponds in arc to the arc edge 1112 to be soldered of the first tab 111.
For example, referring to fig. 22, fig. 22 shows a schematic diagram of a third battery string in an embodiment of the present invention.
And arranging a plurality of third battery strings along a third direction to obtain a wave-shaped battery piece array, wherein the third direction is parallel to the straight edge of one first slice in the third battery strings, the obtained battery piece array is wave-shaped or fish-scale-shaped and attractive, and the obtained decorative battery assembly is also attractive in appearance.
For example, referring to fig. 23, fig. 23 shows a schematic view of a wave-shaped battery piece array in an embodiment of the invention. The straight line L5 indicates a third direction, which is parallel to the straight side 1111 of a first slice in the third string. In this embodiment of the present invention, optionally, the step S7 may include: overlapping the straight line edge of the first slice and the arc line edge of the adjacent first slice, and connecting the overlapped parts to form a third battery string; and/or the straight line edge of the first slice is adjacent to the arc line edge of the adjacent first slice with a gap; and placing a welding strip at the gap, and welding the first section and the adjacent first section based on the welding strip to form a third battery string.
Specifically, in the case where the straight edge of the first segment and the arc edge of the adjacent first segment overlap each other, the overlapping portion may be welded using a solder ribbon to form the third battery string, or the overlapping portion may be adhered using a conductive adhesive to form the third battery string. And under the condition that the straight line edge of the first slice is adjacent to the arc line edge of the adjacent first slice and a gap is reserved, a welding strip is placed at the position of the reserved gap, and the two adjacent first slices are welded by the welding strip to form a third battery string.
In the embodiment of the present invention, the series connection or the parallel connection may be also used in the process of forming the third battery string. For example, 2 of the 8 first slices are used, or 4 of the 8 first slices are used, or 8 of the 8 first slices are used, and the like, which is not particularly limited in the embodiment of the present invention.
In the embodiment of the present invention, in the process of manufacturing the decorated battery assembly based on the plurality of first slices, attention needs to be paid to the positive bus bar of one first slice and the negative bus bar of the adjacent first slice to achieve current collection.
In this application, directly based on circular silicon chip processing, need not to cut away the silicon rod, and each section of circular silicon chip has all been used for processing and has formed battery pack, and it is extravagant not have the silicon rod. Simultaneously, the radian on the pitch arc limit of second section is less, and at the in-process of making electricity generation battery pack, the white space of leaving between the adjacent second section is less or do not leave the white space, and the electricity generation battery pack conversion efficiency who obtains is high, and the radian on the pitch arc limit of first section is great, and for the decoration battery pack by square piece preparation, the pleasing to the eye effect of the decoration battery pack by first section preparation is good.
The embodiment of the invention provides a battery pack, and the battery pack is manufactured by the battery pack production method. The battery pack may include: a power generation cell assembly and a decoration cell assembly. The battery assembly can achieve the corresponding beneficial effects of the above embodiments, and the details are not repeated herein to avoid repetition.
Fig. 24 is a schematic structural diagram of a battery pack production apparatus according to an embodiment of the present invention, and as shown in fig. 24, the battery pack production apparatus according to an embodiment of the present invention may include:
interface 1, processor 2, memory 3 and bus 4; the bus 4 is used for realizing connection communication among the interface 1, the processor 2 and the memory 3; the memory 3 stores executable programs, and the processor 2 is configured to execute the executable programs stored in the memory 3 to implement the steps of the battery pack production method in the foregoing embodiment, and achieve the same technical effects, which are not described herein again to avoid repetition.
The present invention further provides a computer-readable storage medium, where one or more executable programs are stored, and the one or more executable programs may be executed by one or more processors to implement the steps of the method for producing a battery pack according to the first embodiment or the second embodiment, and achieve the same technical effects, and therefore, the descriptions thereof are omitted herein for avoiding repetition.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the embodiments are not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the embodiments. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the embodiments of the application.
It should be noted that the embodiments are described with emphasis on the differences from the other embodiments, and the same or related parts between the embodiments may be referred to each other.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. A method of producing a battery assembly, the method comprising:
manufacturing a circular battery piece by taking a circular silicon wafer as a silicon substrate;
cutting the circular battery piece to obtain a plurality of slices; the slicing includes: a first slice and a second slice; the edge of the first slice comprises: a straight edge and an arc edge; the edge of the second slice comprises: two straight line sides;
manufacturing a power generation battery assembly based on the plurality of second slices;
manufacturing a decorative battery assembly based on the plurality of first cut pieces;
the edge of the second slice further comprises: a first arc edge and a second arc edge; the power generation battery assembly manufactured based on the plurality of second slices includes:
and placing the first arc line edge of the second slice adjacent to the second arc line edge of the adjacent second slice and connecting the adjacent parts to form a second battery string, wherein the two adjacent second slices cover the blank gap of the adjacent second slices through arc-shaped parts.
2. The method of claim 1, wherein fabricating a power generating cell assembly based on the plurality of second slices comprises:
Arranging the plurality of second battery strings along a second direction to obtain a battery piece array; the second direction is perpendicular to a straight line side of the second slice;
and laminating the cell array to obtain the power generation cell assembly.
3. The method of claim 2, wherein said placing the first curved edge of the second slice adjacent to the second curved edge of the second slice and connecting the adjacent portions to form a second battery string comprises:
and overlapping the first arc line edge of the second slice with the second arc line edge of the adjacent second slice, and connecting the overlapped parts to form a second battery string.
4. The method of claim 1, wherein fabricating a decorated battery assembly based on the plurality of first cut sheets comprises:
placing the straight line edge of the first slice adjacent to the arc line edge of the adjacent first slice and connecting the adjacent parts to form a third battery string;
arranging a plurality of third battery strings along a third direction to obtain a wavy battery piece array; the third direction is parallel to the straight line edge of the first slice;
and laminating the wavy battery piece array to obtain the decorative battery component.
5. The method of claim 4, wherein said placing the straight edge of the first slice adjacent to the curved edge of the adjacent first slice and connecting the adjacent portions to form a third string of cells comprises:
overlapping the straight line edge of the first slice and the arc line edge of the adjacent first slice, and connecting the overlapped parts to form a third battery string;
and/or the presence of a gas in the gas,
the straight line edge of the first slice is adjacent to the arc line edge of the adjacent first slice with a gap;
and placing a welding strip at the gap, and welding the first section and the adjacent first section based on the welding strip to form a third battery string.
6. The method of claim 3 or 5, wherein said connecting the overlapping portions comprises:
welding the overlapped part by using a welding strip; alternatively, the overlapping portions are bonded using conductive glue.
7. The method of claim 1, wherein said cutting said circular battery piece to obtain a plurality of cut pieces comprises:
cutting the circular battery piece by using three cutting lines to obtain four cut pieces; the three cutting lines include: the cutting line comprises a first cutting line passing through the circle center and two second cutting lines parallel to the first cutting line; the two second cutting lines are symmetrically distributed on two sides of the first cutting line, and the distance between the first cutting line and the second cutting line is 
The radius of the circular battery piece.
8. A method of producing a battery assembly, the method comprising:
manufacturing a circular battery piece by taking a circular silicon wafer as a silicon substrate;
cutting the circular battery piece to obtain a plurality of slices; the slicing includes: a first slice and a second slice; the edge of the first slice comprises: a straight edge and an arc edge; the edge of the second slice comprises: two straight line sides;
manufacturing a power generation battery assembly based on the plurality of second slices;
manufacturing a decorative battery assembly based on the plurality of first cut pieces;
the two straight sides include: a first linear side and a second linear side; the edge of the second slice further comprises: a first arc edge and a second arc edge; the power generation battery assembly manufactured based on the plurality of second slices includes:
placing the first straight line edge of the second slice adjacent to the second straight line edge of the adjacent second slice, and connecting the adjacent parts to form a first battery string;
arranging a plurality of first battery strings along a first direction to obtain a battery piece array; the first direction is parallel to the first straight line side; the first arc line edge of the first battery string is arranged adjacent to the second arc line edge of the adjacent first battery string; the two adjacent second slices completely cover the blank gaps of the adjacent second slices through arc-shaped parts;
And laminating the cell array to obtain the power generation cell assembly.
9. The method of claim 8, wherein placing the first linear edge of the second slice adjacent to the second linear edge of the adjacent second slice and connecting the adjacent portions to form a first string of cells comprises:
and overlapping the first straight line edge of the second slice with the second straight line edge of the adjacent second slice, and connecting the overlapped parts to form a first battery string.
10. The method of claim 9, wherein said connecting the overlapping portions comprises:
welding the overlapped part by using a welding strip; alternatively, the overlapping portions are bonded using conductive glue.
11. The method of claim 8, wherein said fabricating a decorated battery assembly based on a plurality of said first cut sheets comprises:
placing the straight line edge of the first slice adjacent to the arc line edge of the adjacent first slice and connecting the adjacent parts to form a third battery string;
arranging a plurality of third battery strings along a third direction to obtain a wavy battery piece array; the third direction is parallel to the straight line edge of the first slice;
And laminating the wavy battery piece array to obtain the decorative battery component.
12. The method of claim 11, wherein said placing the straight edge of the first slice adjacent to the curved edge of the adjacent first slice and connecting the adjacent portions to form a third string of cells comprises:
overlapping the straight line edge of the first slice and the arc line edge of the adjacent first slice, and connecting the overlapped parts to form a third battery string;
and/or the presence of a gas in the gas,
the straight line edge of the first slice is adjacent to the arc line edge of the adjacent first slice with a gap;
and placing a welding strip at the gap, and welding the first section and the adjacent first section based on the welding strip to form a third battery string.
13. The method of claim 8, wherein said cutting said circular battery piece to obtain a plurality of cut pieces comprises:
cutting the circular battery piece by using three cutting lines to obtain four cut pieces; the three cutting lines include: the cutting line comprises a first cutting line passing through the circle center and two second cutting lines parallel to the first cutting line; the two second cutting lines are symmetrically distributed on two sides of the first cutting line, and the distance between the first cutting line and the second cutting line is 
The radius of the circular cell piece.
14. A battery pack produced by the method for producing a battery pack according to any one of claims 1 to 10 and 13.
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| JP4534077B2 (en) * | 2003-10-20 | 2010-09-01 | 信越化学工業株式会社 | Manufacturing method of solar cell module |
| AU2005281236B2 (en) * | 2004-09-03 | 2011-02-10 | Shin-Etsu Chemical Co., Ltd. | Photovoltaic power generation module and photovoltaic power generation system employing it |
| CN100521252C (en) * | 2004-09-03 | 2009-07-29 | 信越化学工业株式会社 | Module and system for solar electricity generation |
| CN101431112A (en) * | 2007-11-07 | 2009-05-13 | 中芯国际集成电路制造(上海)有限公司 | Solar battery |
| JP5404725B2 (en) * | 2011-09-21 | 2014-02-05 | シャープ株式会社 | Photovoltaic generator, photovoltaic generator array, and photovoltaic generator manufacturing method |
| CN103187476B (en) * | 2011-12-29 | 2016-06-15 | 清华大学 | The preparation method of solaode |
| US20180178929A1 (en) * | 2014-10-15 | 2018-06-28 | Solaero Technologies Corp. | Space-qualified solar cell assembly comprising space-qualified solar cells shaped as a portion of a circle |
| US11063166B2 (en) * | 2017-10-05 | 2021-07-13 | Sunpower Corporation | System and method for shingling wafer strips connected in parallel |
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