CN107275438A - The preparation method of heterojunction solar battery and the mould for producing battery - Google Patents
The preparation method of heterojunction solar battery and the mould for producing battery Download PDFInfo
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- CN107275438A CN107275438A CN201710398693.8A CN201710398693A CN107275438A CN 107275438 A CN107275438 A CN 107275438A CN 201710398693 A CN201710398693 A CN 201710398693A CN 107275438 A CN107275438 A CN 107275438A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 78
- 238000000151 deposition Methods 0.000 claims abstract description 52
- 230000008021 deposition Effects 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 18
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 10
- 230000005611 electricity Effects 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005240 physical vapour deposition Methods 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/673—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere using specially adapted carriers or holders; Fixing the workpieces on such carriers or holders
- H01L21/6732—Vertical carrier comprising wall type elements whereby the substrates are horizontally supported, e.g. comprising sidewalls
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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 Table
-
- 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
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
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Abstract
Mould the invention provides a kind of preparation method of heterojunction solar battery and for producing battery, to by the way that heterojunction solar battery is put into default mould, utilize blocking for the mould, so as to reduce the probability that the material of conductive characteristic is deposited in the edge of battery, reduce cell positive electrode and the phenomenon of short circuit occurs with negative electrode, realize the lifting of the efficiency of battery conversion and the performance of battery.This method includes：The heterojunction solar battery for not depositing conductive characteristic material is put into for reducing the mould that conductive characteristic material is deposited in the edge of heterojunction solar battery；By physical gas-phase deposition, heterojunction solar battery is obtained using the mould.
Description
The present patent application is the applying date on December 24th, 2014, Application No. 201410820166.8, entitled "
The divisional application of the patent application of the preparation method of heterojunction solar battery and the mould for producing battery ".
Technical field
The present invention relates to field of batteries, more particularly to a kind of heterojunction solar battery preparation method and for producing
The mould of battery.
Background technology
As manufacture of solar cells technology constantly improves, production cost is constantly reduced, and conversion efficiency is improved constantly, photovoltaic
The application of generating is increasingly extensive and turns into the important energy source of supply of electric power.Wherein, silicon heterogenous solar cell with its low cost,
Efficient feature, becomes state-of-the-art manufacture of solar cells technology.
However, silicon heterogenous solar cell is in solar cell manufacturing process, the positive negative electricity for often occurring battery
The phenomenon on extremely short road, that is, show the effect shown in Fig. 1.Wherein, in Fig. 1 101 represent positive electrodes, 102 represent cell pieces with
And 103 represent negative electrode.Wherein, the positive electrode 101 and negative electrode 103 all include deposition transparent conductive oxide
(Transparent Conducting Oxide, TCO).Therefore, it can be seen that from Fig. 1 circled, the silicon heterogenous solar energy
The positive electrode of battery and negative electrode short circuit.
In summary, solar cell is manufactured using prior art, when depositing TCO materials, it is easy to cause solar energy
Cell positive electrode and negative electrode short circuit, cause conversion efficiency of solar cell to be greatly lowered, have a strong impact on the performance of battery.
The content of the invention
Mould the invention provides a kind of preparation method of heterojunction solar battery and for producing battery, passes through
Heterojunction solar battery is put into default mould, using blocking for the mould, the material of conductive characteristic is reduced in electricity
The probability of the edge deposition in pond, reduces cell positive electrode and the phenomenon of short circuit occurs with negative electrode, realize the effect of battery conversion
The lifting of rate and the performance of battery.
The invention provides a kind of preparation method of heterojunction solar battery, this method includes：
Step 1: the heterojunction solar battery for not depositing conductive characteristic material is put into for reducing conductive characteristic material
The mould deposited in the edge of heterojunction solar battery；
Step 2: by physical gas-phase deposition, heterojunction solar battery is obtained using the mould.
By the way that heterojunction solar battery is put into default mould, using blocking for the mould, led so as to reduce
The probability that the material of electrical characteristics is deposited in the edge of battery, reduces cell positive electrode and the phenomenon of short circuit occurs with negative electrode,
Realize the lifting of the efficiency of battery conversion and the performance of battery.
It is preferred that the mould includes：For carrying the base of battery, positioned at base both sides and vertical with base
Side wall and the part being movably connected with the side wall；
Described be put into the heterojunction solar battery for not depositing conductive characteristic material exists for reducing conductive characteristic material
The mould of the edge deposition of heterojunction solar battery, including：
The heterojunction solar battery for not depositing conductive characteristic material is put on the base of mould；
It is provided for reducing conductive characteristic material on the side wall of the mould in the edge of heterojunction solar battery
The part of deposition.
By setting the part of movable connection on the side wall of mould, the screening using the part to conductive characteristic material
Gear, so that the probability that the material for reducing conductive characteristic is deposited in the edge of battery, reduces cell positive electrode and negative electrode
Occur the phenomenon of short circuit, realize the lifting of the efficiency of battery conversion and the performance of battery.
It is preferred that the mould includes：For carrying the base of battery and vertical with base positioned at the base both sides
And the side wall that is movably connected, wherein, the side wall include being connected with the side wall for reducing conductive characteristic material heterogeneous
The part of the edge deposition of joint solar cell；
Described be put into the heterojunction solar battery for not depositing conductive characteristic material exists for reducing conductive characteristic material
The mould of the edge deposition of heterojunction solar battery, including：
The heterojunction solar battery for not depositing conductive characteristic material is put on the base of mould；
The side wall is set on the base of the mould.
By setting the movable side wall for being connected to block conductive characteristic material on the base of mould, so as to reduce
The probability that the material of conductive characteristic is deposited in the edge of battery, reduces cell positive electrode and occurs showing for short circuit with negative electrode
As realizing the lifting of the efficiency of battery conversion and the performance of battery.
It is preferred that the mould includes：For carrying the base of battery and vertical with base positioned at the base both sides
And the side wall that is movably connected；
Described be put into the heterojunction solar battery for not depositing conductive characteristic material exists for reducing conductive characteristic material
The mould of the edge deposition of heterojunction solar battery, including：
The heterojunction solar battery for not depositing conductive characteristic material is put on the base of mould, determine the side wall with
The difference in height of the heterojunction solar battery；
According to the difference in height of the side wall and the heterojunction solar battery, the first guard space value is determined；
Position of the mobile side wall on the base, obtains the side wall to the minimum range of the side of the battery,
Wherein, the lowest distance value of side of the side wall to the battery is not more than the first guard space value.
By position of the mobile side wall on the base, the side wall is reduced to the most narrow spacing of the side of the battery
From so that the probability that the material for reducing conductive characteristic is deposited in the edge of battery, reduces cell positive electrode and negative electrode
Occur the phenomenon of short circuit, realize the lifting of the efficiency of battery conversion and the performance of battery.
It is preferred that the mould includes：For carrying the base of battery and vertical with base positioned at the base both sides
And height-adjustable side wall；
Described be put into the heterojunction solar battery for not depositing conductive characteristic material exists for reducing conductive characteristic material
The mould of the edge deposition of heterojunction solar battery, including：
The heterojunction solar battery for not depositing conductive characteristic material is put on the base of mould, determine the side wall with
The minimum range of the battery；
According to the minimum range of the side wall and the battery, the second protection height difference is determined；
The height of the side wall is adjusted, the difference in height of the side wall and the battery is obtained, wherein, the side wall and the electricity
The difference in height in pond is not less than the described second protection height difference.
By adjusting the height of the side wall in mould, increase the difference in height of the side wall and the battery, utilize the mould
Shadow effect, so as to reduce the probability that the material of conductive characteristic is deposited in the edge of battery, reduce cell positive electrode with
The phenomenon of short circuit occurs for negative electrode, realizes the lifting of the efficiency of battery conversion and the performance of battery.
A kind of mould for being used to produce battery that the present invention is provided, the mould includes：For carrying the base of battery, being located at
The base both sides and the side wall vertical with base and the part being connected with the side wall, wherein, the part includes direction
The protuberance of the surface of the battery.
By the mould, when realizing deposition of the material in conductive characteristic in battery edge, using in mould with side wall
Connected part is blocked to the material of conductive characteristic, reduce conductive characteristic material deposit to the side wall of mould with close to should
The probability in the gap between the battery of side wall, accordingly, reduces deposition of the material in battery edge of conductive characteristic, so that
Reduce cell positive electrode with negative electrode short circuit phenomenon to occur, realize the lifting of the efficiency of battery conversion and the performance of battery.
It is preferred that the protuberance is movably connected with the side wall.
It is preferred that the base is movably connected with the side wall.
It is preferred that the protuberance is triangular structure of right angle, wherein, the hypotenuse of the triangular structure of right angle is described in
Bottom plate or right-angle side are towards the bottom plate.
It is preferred that the mould also includes：The hierarchic structure being connected with the base and the side wall.
It is preferred that when the minimum range of protuberance described in the vertical direction and the battery is zero, the ladder knot
The height of each ladder is respectively less than the height of the battery in structure；Otherwise, the height of each ladder is big in the hierarchic structure
In the height of the battery.
A kind of mould for being used to produce battery that the present invention is provided, the mould includes：For carry battery base and
Positioned at the base both sides and the height-adjustable side wall vertical with base, wherein, the base and the side wall activity phase
Even.
It is preferred that when the difference in height of the side wall and the battery is constant, the most narrow spacing of the side wall and the battery
From no more than default first guard space value, wherein, the first guard space value is according to the side wall and the battery
Difference in height determine.
It is preferred that when the minimum range of the side wall and the battery is constant, the height of the side wall and the battery
Difference not less than default second protection height difference, wherein, it is described second protection height difference be according to the side wall with it is described
What the minimum range of battery was determined.
By the height for the side wall for improving mould, due to the influence of the mould shadow effect, reduce and deposit to die side
Wall and the probability in the gap between the battery of the side wall, by the side for reducing the side wall and the battery close to the side wall
The distance of edge, reduces deposition of the material in battery edge of conductive characteristic, so as to reduce cell positive electrode and negative electrode
The probability that short circuit phenomenon occurs, realizes the lifting of the efficiency of battery conversion and the performance of battery.
It is preferred that the first guard space value is directly proportional to the side wall to the difference in height of the battery.
It is preferred that the second protection height difference is directly proportional to the side wall to the minimum range of the battery.
It is preferred that when the difference in height of the side wall and the battery is 2 millimeters, the first guard space value is 0.2
Millimeter.
It is preferred that when the range difference of the side wall and the edge of the battery close to the side wall is 0.2 millimeter, described the
Two protection height differences are 2 millimeters.
Brief description of the drawings
Fig. 1 is the schematic diagram of the heterojunction solar battery electric leakage principle manufactured by prior art；
A kind of schematic flow sheet of the preparation method for heterojunction solar battery that Fig. 2 provides for the present invention；
Fig. 3 a are a kind of structural representation for being used to produce the mould of battery that the embodiment of the present invention one is provided；
Fig. 3 b are a kind of structural representation for being used to produce the mould of battery that the embodiment of the present invention one is provided；
Fig. 4 is a kind of structural representation for being used to produce the mould of battery that the embodiment of the present invention two is provided；
Fig. 5 a are a kind of structural representation for being used to produce the mould of battery that the embodiment of the present invention three is provided；
Fig. 5 b are another structural representation for being used to produce the mould of battery that the embodiment of the present invention three is provided；
Fig. 6 is a kind of structural representation for being used to produce the mould of battery that the embodiment of the present invention four is provided；
Fig. 7 is a kind of structural representation for being used to produce the mould of battery that the embodiment of the present invention five is provided；
Fig. 8 is the schematic diagram of the material of the mold deposits conductive characteristic provided using the embodiment of the present invention five；
The schematic diagram of the test result of the solar cell for the Making mold that Fig. 9 provides for the present invention.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
One step it is described in detail, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole implementation
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 2, the invention provides a kind of preparation method of heterojunction solar battery, this method includes following step
Suddenly：
S201, the heterojunction solar battery that conductive characteristic material is not deposited is put into existed for reducing conductive characteristic material
The mould of the edge deposition of heterojunction solar battery；
S202, by physical gas-phase deposition, obtain heterojunction solar battery using the mould.
By the way that heterojunction solar battery is put into default mould, using blocking for the mould, led so as to reduce
The probability that the material of electrical characteristics is deposited in the edge of battery, reduces cell positive electrode and the phenomenon of short circuit occurs with negative electrode,
Realize the lifting of the efficiency of battery conversion and the performance of battery.
Wherein, the heterojunction solar battery for conductive characteristic material not being deposited is to prepare to complete chemical vapor deposition
(Chemical Vapor Deposition, CVD) battery, the CVD batteries are placed into default mould.
Specifically, S202 specifically includes following steps：
Set Step 1: the battery and mould are sent into magnetron sputtering (Physical Vapor Deposition, PVD)
At deposition front electrode transparent conductive oxide (Transparent Conducting Oxide, TCO) material in standby；
Step 2: the battery and mould are sent out into PVD equipment, and carry out flaps processing；
Step 3: the battery and mould are conveyed once again in PVD equipment, backplate TCO materials are deposited；
Specifically, when preparing solar cell using one side, this method will not include step 3.
Specifically, the mould can be realized by the way of mould is blocked and reduce conductive characteristic material in the hetero-junctions sun
The deposition of the edge of energy battery.Shading type mould specifically has two kinds of implementations：One is that setting can on the side wall of mould
The part of flexible connection, is blocked using the part to conductive characteristic material, reduces conductive characteristic material in heterojunction solar
The deposition of the edge of battery；Secondly to set the movable side for being connected to block conductive characteristic material on the base of mould
Wall, reduces deposition of the conductive characteristic material in the edge of heterojunction solar battery.
Wherein, shading type mould one is specifically included：For carrying the base of battery, positioned at the base both sides and and base
Vertical side wall and the part being movably connected with the side wall, wherein, the part is included towards the surface of the battery
Protuberance；
If using shading type mould one, step S201 is specifically included：
The heterojunction solar battery for not depositing conductive characteristic material is put on the base of mould；
It is provided for reducing conductive characteristic material on the side wall of the mould in the edge of heterojunction solar battery
The part of deposition.
Shading type mould two is specifically included：For carrying the base of battery and vertical with base positioned at the base both sides
And the side wall that is movably connected, wherein, the side wall include being connected with the side wall for reducing conductive characteristic material heterogeneous
The part of the edge deposition of joint solar cell；
If using shading type mould two, step S201 is specifically included：
The heterojunction solar battery for not depositing conductive characteristic material is put on the base of mould；
The side wall is set on the base of the mould.
Specifically, the mould can be by the height of the side wall for improving mould, therefore the mould produces shadow effect influence,
Realize the deposition for reducing conductive characteristic material in the edge of heterojunction solar battery.Influence formula mould specifically has two kinds of realizations
Mode：One be mould side wall and close to the side wall battery between gap size it is constant on the premise of, improve mould
Side wall height；Secondly side wall and the close side wall on the premise of the height of the side wall of mould is constant, to reduce mould
Battery between gap.
Wherein, influence formula mould one is specifically included：For carrying the base of battery and positioned at the base both sides and bottom
Seat is vertical and side wall that be movably connected；
If using formula mould one is influenceed, step S201 is specifically included：
The heterojunction solar battery for not depositing conductive characteristic material is put on the base of mould, determine the side wall with
The difference in height of the heterojunction solar battery；
According to the difference in height of the side wall and the heterojunction solar battery, the first guard space value is determined；
Position of the mobile side wall on the base, obtains the side wall to the minimum range of the side of the battery,
Wherein, the lowest distance value of side of the side wall to the battery is not more than the first guard space value.
Influence formula mould two is specifically included：For carrying the base of battery and vertical with base positioned at the base both sides
And height-adjustable side wall；
If using formula mould two is influenceed, step S201 is specifically included：
The heterojunction solar battery for not depositing conductive characteristic material is put on the base of mould, determine the side wall with
The minimum range of the battery；
According to the minimum range of the side wall and the battery, the second protection height difference is determined；
The height of the side wall is adjusted, the difference in height of the side wall and the battery is obtained, wherein, the side wall and the electricity
The difference in height in pond is not less than the described second protection height difference.
The invention provides a kind of mould for being used to produce battery, the mould includes：
For carrying the base of battery, positioned at the base both sides and the side wall vertical with base and with the side wall phase
Part even, wherein, the part includes the protuberance towards the surface of the battery.
By the mould, when realizing deposition of the material in conductive characteristic in battery edge, using in mould with side wall
Connected part is blocked to the material of conductive characteristic, reduce conductive characteristic material deposit to the side wall of mould with close to should
The probability in the gap between the battery of side wall, accordingly, reduces deposition of the material in battery edge of conductive characteristic, so that
Reduce cell positive electrode with negative electrode short circuit phenomenon to occur, realize the lifting of the efficiency of battery conversion and the performance of battery.
Specifically, the protuberance is movably connected with the side wall, or/and the base is movably connected with the side wall.
Wherein, the protuberance is arbitrary shape.But, when the protuberance is bevel-faced form structure, it can reach
Optimum efficiency, i.e., described protuberance is triangular structure of right angle, wherein, the hypotenuse of the triangular structure of right angle is towards the bottom plate
Or right-angle side is towards the bottom plate.
Specifically, the mould also includes：The hierarchic structure being connected with the base and the side wall.
Specifically, when the minimum range of protuberance described in the vertical direction and the battery is zero, the ladder knot
The height of each ladder is respectively less than the height of the battery in structure；Otherwise, the height of each ladder is big in the hierarchic structure
In the height of the battery.
Specifically, the summit and the edge of the battery close to the protuberance when the protuberance in the horizontal direction
When range difference is constant, the minimum constructive height difference of the protuberance in the vertical direction and the battery is not more than default third height
Difference, wherein, the third height difference be according to protuberance summit in the horizontal direction with close to the protuberance
What the range difference at the edge of the battery was determined；Or,
When the minimum constructive height difference of the protuberance in the vertical direction and the battery is constant, the protuberance is in level
The range difference on summit and the edge of the battery close to the protuberance on direction is not less than default 4th distance difference, its
In, the 4th distance difference is to be determined according to the minimum constructive height difference of the protuberance in the vertical direction and the battery.
Wherein, the distance on the summit of the protuberance in the horizontal direction and the edge of the battery close to the protuberance
Difference is more than the protuberance in the vertical direction and the half of the minimum constructive height difference of the battery.
The invention provides a kind of mould for being used to produce battery, the mould includes：For carry battery base and
Positioned at the base both sides and the height-adjustable side wall vertical with base, wherein, the base and the side wall activity phase
Even.
Specifically, when the difference in height of the side wall and the battery is constant, the most narrow spacing of the side wall and the battery
From no more than default first guard space value, wherein, the first guard space value is according to the side wall and the battery
Difference in height determine.
Specifically, when the minimum range of the side wall and the battery is constant, the height of the side wall and the battery
Difference not less than default second protection height difference, wherein, it is described second protection height difference be according to the side wall with it is described
What the minimum range of battery was determined.
By the height for the side wall for improving mould, due to the influence of the mould shadow effect, reduce and deposit to die side
Wall and the probability in the gap between the battery of the side wall, by the side for reducing the side wall and the battery close to the side wall
The distance of edge, reduces deposition of the material in battery edge of conductive characteristic, so as to reduce cell positive electrode and negative electrode
The probability that short circuit phenomenon occurs, realizes the lifting of the efficiency of battery conversion and the performance of battery.
The mould provided below in conjunction with Fig. 3 a, Fig. 3 b, Fig. 4, Fig. 5 a, Fig. 5 b and Fig. 6 and embodiment the present invention enters
Row is illustrated.Wherein, a in Fig. 3 a, Fig. 3 b, Fig. 4, Fig. 5 a, Fig. 5 b and Fig. 6 represents newly-increased protuberance in the horizontal direction
Summit and the edge of the battery close to the protuberance distance, b represents minimum of the protuberance in vertical direction and battery
Difference in height, c represents the distance of side wall and the edge of the battery close to the side wall
Referring to Fig. 3 a, the embodiment of the present invention one provides a kind of mould for being used to produce battery, and the mould includes：
For carrying the base 301 of battery, positioned at the base both sides and the side wall 302 vertical with base, and with institute
State the protuberance 303 of the surface of the connected direction battery 304 of side wall.
By the mould, when realizing deposition of the material in conductive characteristic in battery edge, using in mould with side wall
Connected part is blocked to the material of conductive characteristic, reduce conductive characteristic material deposit to the side wall of mould with close to should
The probability in the gap between the battery of side wall, accordingly, reduces deposition of the material in battery edge of conductive characteristic, so that
Reduce cell positive electrode with negative electrode short circuit phenomenon to occur, realize the lifting of the efficiency of battery conversion and the performance of battery.
Wherein, the protuberance 303 in mould shown in Fig. 3 a is movably connected with the side wall 302, i.e., described protuberance 303 can
It is mobile, the battery 304 is put into mould so as to realize.In addition, the mould of the embodiment of the present invention three can also be figure
Mould shown in 3b, the protuberance 303 of the mould is fixed on the side wall 302, but the base 301 and the side wall 302
It is movably connected, i.e., the distance between described side wall is adjustable, therefore, by adjusting the side wall positioned at the both sides of base 301
The distance between 302, you can the battery 304 is put into mould by realization.
In addition, the dash area 305 in Fig. 3 a and Fig. 3 b is the TCO thin film formed.
Protuberance shown in Fig. 3 a and Fig. 3 b is triangular structure of right angle, and the hypotenuse direction of the triangular structure of right angle
The base 301；The protuberance can also be right angled triangle of the right-angle side towards the base 301, on the basis of Fig. 3 a
Concrete structure is referring to Fig. 4.
Referring to Fig. 4, protuberance 401 in the mould that the embodiment of the present invention two is provided and the battery in the vertical direction away from
From for zero.
The mould provided by the embodiment of the present invention two is blocked to the material of conductive characteristic, so as to avoid completely due to leading
The material of electrical characteristics is deposited in battery edge, and causes cell positive electrode and negative electrode short circuit, produces battery drain phenomenon.
Although embodiment one is triangular structure of right angle with the protuberance in embodiment two, the invention is not limited in
The structure.And the invention is not limited in the mould enumerated in embodiment, the mould is simply that can be better understood from this hair
It is bright.
In order to preferably adapt to various sizes of battery, hierarchic structure is set up on the basis of Fig. 3 a.Referring to Fig. 5 a
With Fig. 5 b, the mould that the embodiment of the present invention three is provided also includes the ladder knot being connected with the base 301 and the side wall 302
Structure 501,502.
The mould that the embodiment of the present invention three is provided passes through the hierarchic structure set up, it is possible to achieve for various sizes of electricity
Pond, remains able to ensure the in small distance of side wall and the edge of the battery of the close side wall, i.e., for various sizes of battery, its
Reference side wall is also differed.As shown in Figure 5 a, the small battery of size will be fallen on following ladder, and its reference side wall is close
The side wall of the hierarchic structure 501 of the battery；As shown in Figure 5 b, the big battery of size will be fallen on following ladder, and it is referred to
Side wall is the side wall of the hierarchic structure 502 close to the battery.
Wherein, the height of hierarchic structure 501 and hierarchic structure 502 is all higher than the battery 304 in the hierarchic structure
Highly.
Similarly, hierarchic structure is set up on the basis of Fig. 4, Fig. 6 is obtained, the mould that the embodiment of the present invention four is provided also includes
The hierarchic structure 601 being connected with the base 301 and the side wall 302.Wherein, in hierarchic structure hierarchic structure 601 height
Height of the degree less than battery 304.It is described i.e. when the minimum range of protuberance described in the vertical direction and the battery is zero
The height of each ladder should be respectively less than the height of the battery in hierarchic structure.
Referring to Fig. 7, the embodiment of the present invention five provides another mould for being used to produce battery, and the mould includes：For
Carry the base 701 of battery and positioned at the both sides of base 701 and the side wall 702 vertical with base；
Wherein, the difference in height of the side wall 702 and the battery 703 is d；The most narrow spacing of side wall 702 and the battery 703
From for e；
When the difference in height d of the side wall 702 and the battery 703 is constant, the side wall 702 and the battery 703
Minimum range e is not more than default first guard space value, wherein, the first guard space value is according to the side wall 702
Determine, and be directly proportional to d with the difference in height d of the battery 703；Or,
When the minimum range e of the side wall 702 and the battery 703 is constant, the side wall 702 and the battery 703
Difference in height d not less than default second protection height difference, wherein, it is described second protection height difference be according to the side wall
702 determine with the minimum range e of the battery 703, and are directly proportional to e.
It is preferred that when the difference in height of the side wall 702 and the battery 703 is 2 millimeters, and when keeping constant, the side
The minimum range of wall 702 and the battery 703 is not more than 10 millimeters, i.e. the first guard space value for 10 millimeters；Or,
When the minimum range of the side wall 702 and the battery 703 is 10 millimeters, and when keeping constant, the side wall 702
It is not less than 2 millimeters with the difference in height of the battery 703, i.e., the second protection height difference is 2 millimeters.
The embodiment of the present invention five by improving the height of the side wall of mould, using in the preparation process of battery edge produce
Shadow effect, reduce the probability that the material of conductive characteristic is deposited in the edge of battery, reduce cell positive electrode with it is negative
The generation of electric pole short circuit phenomenon, it is achieved thereby that the lifting for the efficiency and the performance of battery that battery is changed.
The embodiment of the present invention five reduces also by reducing the gap of mould and battery and deposits to mould side wall and close to this
The probability in the gap between the battery of side wall, further reduces the generation of cell positive electrode and negative electrode short circuit phenomenon, also carries
The efficiency of battery conversion and the performance of battery are risen.
Due to the difference in height and the side wall and the edge of the battery close to the side wall of the side wall and the battery
Range difference is directly proportional, therefore the side wall with mould and the reduction of the difference in height of the battery, side wall and the electricity close to the side wall
The distance at the edge in pond also reduces therewith, when side wall with close to the side wall battery apart from it is small to a certain extent when, certainly will be in electricity
Puzzlement is caused during the taking-up in pond, can now be spiled immediately below mould, and using gas purging or related tool handle
Battery takes out.
In order to be able to vivider understanding, the mould that the present invention is provided is excellent in silicon heterogenous solar cell preparation process
Point, as shown in figure 8, the mould that the embodiment of the present invention five is provided is during PVD magnetron sputtering techniques, deposits transparent conductive oxide
Thing TCO schematic diagram, wherein, 801 represent that deposition TCO target, 802 expression TCO, the 803 expression embodiment of the present invention five are provided
The mould for preparing silicon heterogenous solar cell, 804 represent deposit to battery surface tco layer, 805 represent CVD batteries.
The solar cell produced by the mould provided prior art, embodiment one, example IV and embodiment five
Tested, test result is as shown in Figure 9.According to test result can with obtain, the Making mold provided using the present invention
The situation of the electric leakage of battery is clearly better, i.e., can be drawn from reverse current, passes through embodiment one, example IV, embodiment five
The solar cell of the mould production of offer, which compares the solar cell drain conditions produced by existing mould, to be had substantially
Decline, wherein, it is the most obvious that the solar cell drain conditions that the mould provided by example IV is produced improve；In forward direction
Electric current can show that there is provided same voltage the mould provided by embodiment one, example IV, embodiment five is produced too
The conversion efficiency of positive energy battery has compared to the solar cell produced by existing mould to be obviously improved.
In summary, the invention provides a kind of preparation method of heterojunction solar battery and for producing battery
Mould, by the way that heterojunction solar battery is put into default mould, using blocking for the mould, so as to reduce conductive spy
Property the probability that is deposited in the edge of battery of material, reduce the phenomenon that short circuit occurs for cell positive electrode and negative electrode, realize
The lifting of the efficiency of battery conversion and the performance of battery；By using material of the part being connected in mould with side wall to conductive characteristic
Material block, reduce conductive characteristic material deposit to mould side wall and close to the side wall battery between gap it is general
Rate, accordingly, reduces deposition of the material in battery edge of conductive characteristic, so as to reduce cell positive electrode and negative electrode
Short circuit phenomenon occurs；By the height for the side wall for improving mould, due to the influence of the mould shadow effect, reduce and deposit to mould
Has the probability in side wall and the gap between the battery of the side wall, by reducing the side wall and the battery close to the side wall
Edge distance, reduce deposition of the material in battery edge of conductive characteristic, thus reduce cell positive electrode with it is negative
The probability that electric pole short circuit phenomenon occurs.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (2)
1. a kind of preparation method of heterojunction solar battery, it is characterised in that this method includes：
Step 1: the heterojunction solar battery for not depositing conductive characteristic material is put into for reducing conductive characteristic material different
The mould of the edge deposition of matter joint solar cell；
Wherein, the mould includes：For carrying the base of battery and vertical with base and living positioned at the base both sides
Move connected side wall；It is described that the heterojunction solar battery for not depositing conductive characteristic material is put into for reducing conductive characteristic material
Expect the mould deposited in the edge of heterojunction solar battery, including：
The heterojunction solar battery for not depositing conductive characteristic material is put on the base of mould, determine the side wall with it is described
The difference in height of heterojunction solar battery；
According to the difference in height of the side wall and the heterojunction solar battery, the first guard space value is determined；
Position of the mobile side wall on the base, obtains the side wall to the minimum range of the side of the battery, wherein,
The lowest distance value of side of the side wall to the battery is not more than the first guard space value；
Or, the mould includes：For carrying the base of battery and vertical with base and can positioned at the base both sides
Adjust the side wall of height；It is described that the heterojunction solar battery for not depositing conductive characteristic material is put into for reducing conductive characteristic
The mould that material is deposited in the edge of heterojunction solar battery, including：
The heterojunction solar battery for not depositing conductive characteristic material is put on the base of mould, determine the side wall with it is described
The minimum range of battery；
According to the minimum range of the side wall and the battery, the second protection height difference is determined；
The height of the side wall is adjusted, the difference in height of the side wall and the battery is obtained, wherein, the side wall and the battery
Difference in height is not less than the described second protection height difference；
Step 2: by physical gas-phase deposition, heterojunction solar battery is obtained using the mould.
2. a kind of mould for being used to produce battery, it is characterised in that the mould includes：For carrying the base of battery and being located at
The base both sides and the height-adjustable side wall vertical with base, wherein, the base is movably connected with the side wall；
When the difference in height of the side wall and the battery is constant, the minimum range of the side wall and the battery is not more than default
The first guard space value, wherein, the first guard space value is to be determined according to the difference in height of the side wall and the battery
's；
When the minimum range of the side wall and the battery is constant, the difference in height of the side wall and the battery, which is not less than, to be preset
The second protection height difference, wherein, the second protection height difference is the most narrow spacing according to the side wall and the battery
From determination.
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| CN201710398693.8A CN107275438B (en) | 2014-12-24 | 2014-12-24 | The production method of heterojunction solar battery and mold for producing battery |
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| CN201710398693.8A CN107275438B (en) | 2014-12-24 | 2014-12-24 | The production method of heterojunction solar battery and mold for producing battery |
| CN201410820166.8A CN104576828B (en) | 2014-12-24 | 2014-12-24 | The preparation method of heterojunction solar battery and the mould for producing battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115207158A (en) * | 2022-07-07 | 2022-10-18 | 通威太阳能（安徽）有限公司 | Preparation method of solar cell, solar cell film-coating carrier plate and application thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104576828B (en) | 2017-08-25 |
| CN104576828A (en) | 2015-04-29 |
| CN107275438B (en) | 2019-04-05 |
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