CN104882502A - Solar battery - Google Patents
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- CN104882502A CN104882502A CN201510249960.6A CN201510249960A CN104882502A CN 104882502 A CN104882502 A CN 104882502A CN 201510249960 A CN201510249960 A CN 201510249960A CN 104882502 A CN104882502 A CN 104882502A
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000741 silica gel Substances 0.000 claims abstract description 20
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 20
- 229920002799 BoPET Polymers 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 abstract description 54
- 230000002195 synergetic effect Effects 0.000 abstract description 19
- 238000006243 chemical reaction Methods 0.000 abstract description 13
- 239000012790 adhesive layer Substances 0.000 abstract description 8
- 239000010408 film Substances 0.000 description 30
- 230000000694 effects Effects 0.000 description 6
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 229910021419 crystalline silicon Inorganic materials 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
- H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
-
- 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
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- Photovoltaic Devices (AREA)
Abstract
本发明涉及的一种太阳能电池，包括接线盒、等离子层、硅胶及背板，其中，所述等离子层设置在所述接线盒与所述硅胶之间，所述接线盒通过所述硅胶与所述背板连接；所述背板包括自上而下依次设置的PVF膜层、PET膜层、粘结层及用于吸收10-400nm的紫外光的增效膜层，所述PVF膜层涂覆于PET膜层，所述粘结层的两面分别与所述PET膜层与所述增效膜层贴合。本发明的太阳能电池的接线盒与背板结合更牢固，并且光电转化率高。
A solar cell according to the present invention includes a junction box, a plasma layer, silica gel and a back plate, wherein the plasma layer is arranged between the junction box and the silica gel, and the junction box passes through the silica gel and the silica gel. The backboard is connected; the backboard includes a PVF film layer, a PET film layer, an adhesive layer and a synergistic film layer for absorbing 10-400nm ultraviolet light from top to bottom, and the PVF film layer is coated with Covered on the PET film layer, the two sides of the bonding layer are attached to the PET film layer and the synergistic film layer respectively. The junction box of the solar cell of the present invention is more firmly combined with the back plate, and the photoelectric conversion rate is high.
Description
技术领域technical field
本发明涉及太阳能技术领域，特别涉及一种太阳能电池。The invention relates to the technical field of solar energy, in particular to a solar cell.
背景技术Background technique
近年来，环境污染已引起全世界的关注，尤其由矿物质燃料燃烧排放的二氧化碳所引起的温室效应更是一个严重的问题。因此，人们强烈希望能够开发出无污染能源。太能作为新型能源，具有取之不尽、用之不竭，无污染、无公害的特点而备受全球关注，并实现能源转化的产业化。目前，人们利用太阳能的主要手段之一是，利用太阳电池对太阳能进行光电转化，将太阳能转化成电能。In recent years, environmental pollution has attracted worldwide attention, especially the greenhouse effect caused by carbon dioxide emitted from burning fossil fuels is a serious problem. Therefore, there is a strong desire to develop pollution-free energy sources. As a new type of energy, solar energy has the characteristics of inexhaustible supply, no pollution, and no pollution. It has attracted global attention and realized the industrialization of energy conversion. At present, one of the main means for people to utilize solar energy is to use solar cells to perform photoelectric conversion of solar energy to convert solar energy into electrical energy.
现有的太能电池一般包括接线盒及背板，接线盒与背板之间采用硅胶连接，在生产过程中，不可避免地接线盒与硅胶接触的表面不干净，并且由于接线盒为塑料材制成，接线盒与硅胶接触的面较为平滑，导致接线盒与硅胶的粘结度不够，从而使接线盒与背板结合不够牢固，接线盒易脱落。Existing solar batteries generally include a junction box and a backplane, and the connection between the junction box and the backplane is made of silica gel. The contact surface between the junction box and the silica gel is relatively smooth, resulting in insufficient adhesion between the junction box and the silica gel, so that the connection between the junction box and the back plate is not strong enough, and the junction box is easy to fall off.
另外，目前的商业化晶体硅太阳能电池主要吸收利用400-700nm的可见光，对于低于400nm的紫外线波段的光基本不吸收利用，造成部分太阳光的能量不被有效利用，这在一定程度上影响了太阳能电池的效率，使得当前商业化晶体硅太阳能电池的效率基本处在14％-17％，在现有的商业化晶体硅的生产水平下难有更大程度的提高。因此，现有技术中的太阳能电池的光电转化率低。In addition, the current commercial crystalline silicon solar cells mainly absorb and utilize visible light of 400-700nm, and basically do not absorb and utilize light in the ultraviolet band below 400nm, resulting in partial sunlight energy not being effectively utilized, which affects to a certain extent The efficiency of solar cells is improved, so that the efficiency of current commercial crystalline silicon solar cells is basically at 14%-17%, and it is difficult to improve to a greater extent under the current production level of commercial crystalline silicon. Therefore, the photoelectric conversion efficiency of the solar cell in the prior art is low.
发明内容Contents of the invention
有鉴于此，本发明的目的是提供一种接线盒与背板结合更牢固，并且光电转化率高的太阳能电池。In view of this, the object of the present invention is to provide a solar cell with a stronger connection between the junction box and the back plate and a higher photoelectric conversion rate.
本发明提供一种太阳能电池，包括接线盒、等离子层、硅胶及背板，其中，所述等离子层设置在所述接线盒与所述硅胶之间，所述接线盒通过所述硅胶与所述背板连接；所述背板包括自上而下依次设置的PVF膜层、PET膜层、粘结层及用于吸收10-400nm的紫外光的增效膜层，所述PVF膜层涂覆于PET膜层，所述粘结层的两面分别与所述PET膜层与所述增效膜层贴合。The present invention provides a solar cell, comprising a junction box, a plasma layer, silica gel and a back plate, wherein the plasma layer is arranged between the junction box and the silica gel, and the junction box passes through the silica gel and the silica gel. Backplane connection; the backplane includes a PVF film layer, a PET film layer, an adhesive layer and a synergistic film layer for absorbing 10-400nm ultraviolet light from top to bottom, and the PVF film layer is coated with For the PET film layer, the two sides of the adhesive layer are attached to the PET film layer and the synergistic film layer respectively.
进一步地，所述PVF膜层的厚度为15-45um。Further, the thickness of the PVF film layer is 15-45um.
进一步地，所述PET膜层的厚度为100-400um。Further, the thickness of the PET film layer is 100-400um.
进一步地，所述粘结层的厚度为5-30um。Further, the thickness of the bonding layer is 5-30um.
进一步地，所述增效膜层的厚度为15-150um。Further, the thickness of the synergistic film layer is 15-150um.
由于上述技术方案的运用，本发明与现有技术相比具有下列优点：Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:
本发明的太阳能电池的接线盒与背板结合更牢固，并且光电转化率高。The junction box of the solar cell of the present invention is more firmly combined with the back plate, and the photoelectric conversion rate is high.
附图说明Description of drawings
图1是本发明实施例的太能电池的结构示意图。FIG. 1 is a schematic structural diagram of a solar battery according to an embodiment of the present invention.
图2是图1中的背板的结构示意图。FIG. 2 is a schematic structural diagram of the backplane in FIG. 1 .
具体实施方式Detailed ways
为使本发明的目的、技术方案和优点更加清楚明了，下面结合具体实施方式并参照附图，对本发明进一步详细说明。应该理解，这些描述只是示例性的，而并非要限制本发明的范围。此外，在以下说明中，省略了对公知结构和技术的描述，以避免不必要地混淆本发明的概念。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.
请参阅图1及图2，本发明实施例提供的太阳能电池，包括接线盒1、等离子层2、硅胶3及背板4。其中，等离子层2设置在接线盒1与硅胶3之间，接线盒1通过硅胶3与背板4连接。背板4包括自上而下依次设置的PVF膜层41、PET膜层42、粘结层43及增效膜层44。需要说明的是，接线盒1与硅胶3接触的面采用常规的等离子喷涂达设定时间(例如3秒)即可，增加了接线盒1与硅胶3连接面的摩擦性，从而加强了接线盒1与硅胶3的粘结度，使接线盒1与背板4的结合更加牢固，接线盒1不易脱落。另外，PVF膜层41涂覆于PET膜层42，即PVF膜层41是由PVF树脂涂覆在PET膜层42后，经干燥固化后成膜，增强了PVF膜层41与PET膜层42之间的粘结性、耐候性和对水汽及氧的阻隔性能，保证了背板4的使用寿命。粘结层43的两面分别与PET膜层42与增效膜层44贴合。增效膜层44用于吸收10-400nm的紫外光，能转换利用现有电池片无法转化的光波，拓宽对太阳能光谱吸收转化范围，使得本发明的太阳能电池的光电转化效率提高。Please refer to FIG. 1 and FIG. 2 , the solar cell provided by the embodiment of the present invention includes a junction box 1 , a plasma layer 2 , a silica gel 3 and a back plate 4 . Wherein, the plasma layer 2 is arranged between the junction box 1 and the silica gel 3 , and the junction box 1 is connected to the backplane 4 through the silica gel 3 . The back sheet 4 includes a PVF film layer 41 , a PET film layer 42 , an adhesive layer 43 and a synergistic film layer 44 arranged in order from top to bottom. It should be noted that the contact surface of the junction box 1 and the silica gel 3 can be sprayed with conventional plasma for a set time (for example, 3 seconds), which increases the friction of the connection surface of the junction box 1 and the silica gel 3, thereby strengthening the junction box. 1 and the adhesiveness of the silica gel 3 make the combination of the junction box 1 and the back plate 4 more firm, and the junction box 1 is not easy to fall off. In addition, the PVF film layer 41 is coated on the PET film layer 42, that is, the PVF film layer 41 is coated on the PET film layer 42 by PVF resin, and is formed into a film after drying and curing, which strengthens the PVF film layer 41 and the PET film layer 42. The adhesiveness, weather resistance and barrier performance to water vapor and oxygen ensure the service life of the back plate 4. Both sides of the adhesive layer 43 are attached to the PET film layer 42 and the synergistic film layer 44 respectively. The synergistic film layer 44 is used to absorb 10-400nm ultraviolet light, can convert light waves that cannot be converted by existing solar cells, and broaden the absorption and conversion range of solar energy spectrum, so that the photoelectric conversion efficiency of the solar cell of the present invention is improved.
具体地，在本实施例中，增效膜层44是以聚烯烃树脂和粘结性树脂为主体树脂的薄膜，并且增效膜层44还加入荧光剂，可以吸收10-400nm的紫外光。Specifically, in this embodiment, the synergistic film layer 44 is a film with polyolefin resin and adhesive resin as the main resin, and the synergistic film layer 44 is also added with a fluorescent agent, which can absorb ultraviolet light of 10-400nm.
在其他实施例中，增效膜层44是以线性低密度聚乙烯和乙烯-醋酸乙烯共聚物为主体树脂的薄膜，并且增效膜层44还加入荧光剂，可以吸收10-400nm的紫外光。In other embodiments, the synergistic film layer 44 is a thin film with linear low density polyethylene and ethylene-vinyl acetate copolymer as the main resin, and the synergistic film layer 44 is also added with a fluorescent agent, which can absorb ultraviolet light of 10-400nm .
在其他实施例中，增效膜层44是以高密度聚乙烯、乙烯-丙烯共聚物和乙烯-醋酸乙烯共聚物为主体树脂的薄膜，并且增效膜层44还加入荧光剂，可以吸收10-400nm的紫外光。In other embodiments, the synergistic film layer 44 is a film with high-density polyethylene, ethylene-propylene copolymer and ethylene-vinyl acetate copolymer as the main resin, and the synergistic film layer 44 is also added with a fluorescent agent, which can absorb 10 -400nm UV light.
在其他实施例中，增效膜层44是以低密度聚乙烯、聚丙烯和乙烯-醋酸乙烯共聚物为主体树脂的薄膜，并且增效膜层44还加入荧光剂，可以吸收10-400nm的紫外光。In other embodiments, the synergistic film layer 44 is a thin film with low-density polyethylene, polypropylene and ethylene-vinyl acetate copolymer as the main resin, and the synergistic film layer 44 is also added with a fluorescent agent, which can absorb 10-400nm ultraviolet light.
在本实施例中，PVF膜层41的厚度为15-45um，该厚度范围内的PVF膜层41的透光率好，使得本发明的太阳能电池的光电转换率高。为使本发明达到最佳使用效果，PVF膜层41的厚度为30um。In this embodiment, the thickness of the PVF film layer 41 is 15-45um, and the light transmittance of the PVF film layer 41 within this thickness range is good, so that the photoelectric conversion rate of the solar cell of the present invention is high. In order to achieve the best use effect of the present invention, the thickness of the PVF film layer 41 is 30um.
在本实施例中，PET膜层42的厚度为100-400um，该厚度范围内的PET膜层42透光效率好，使得本发明的太阳能电池的光电转换效率高。为使本发明达到最佳使用效果，PET膜层42的厚度为250um。In this embodiment, the thickness of the PET film layer 42 is 100-400 um, and the PET film layer 42 within this thickness range has good light transmission efficiency, so that the photoelectric conversion efficiency of the solar cell of the present invention is high. In order to achieve the best use effect of the present invention, the thickness of the PET film layer 42 is 250um.
在本实施例中，粘结层43的厚度为5-30um，该厚度范围内的粘结层43透光效果好，使得本发明的太阳能电池的光电转换效率高。为使本发明达到最佳使用效果，粘结层43的厚度为20um。In this embodiment, the thickness of the adhesive layer 43 is 5-30 um, and the adhesive layer 43 within this thickness range has a good light transmission effect, so that the photoelectric conversion efficiency of the solar cell of the present invention is high. In order to achieve the best use effect of the present invention, the thickness of the adhesive layer 43 is 20um.
在本实施例中，增效膜层44的厚度为15-150um，该厚度范围内的增效膜层44透光效率好，使得本发明的太阳能电池的光电转换效率高。为使本发明达到最佳使用效果，增效膜层44的厚度为75um。In this embodiment, the synergistic film layer 44 has a thickness of 15-150 um, and the synergistic film layer 44 within this thickness range has good light transmission efficiency, so that the photoelectric conversion efficiency of the solar cell of the present invention is high. In order to achieve the best use effect of the present invention, the thickness of the synergistic film layer 44 is 75um.
本发明的有益效果是：本发明的太阳能电池的接线盒与背板结合更牢固，并且光电转化率高。The beneficial effects of the present invention are: the junction box of the solar cell of the present invention is more firmly combined with the back plate, and the photoelectric conversion rate is high.
以上所述仅为本发明的实施例而已，并非因此限制本发明的专利范围，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包括在本发明的范围之内。The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. All modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the range.
Claims (5)
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| CN204303838U (en) * | 2014-12-30 | 2015-04-29 | 明冠新材料股份有限公司 | Solar cell backboard |
| CN204303836U (en) * | 2014-12-30 | 2015-04-29 | 明冠新材料股份有限公司 | Solar cell backboard |
| CN204303833U (en) * | 2014-12-30 | 2015-04-29 | 明冠新材料股份有限公司 | Solar cell backboard |
| CN204303839U (en) * | 2014-12-30 | 2015-04-29 | 明冠新材料股份有限公司 | Solar cell backboard |
| CN204303834U (en) * | 2014-12-30 | 2015-04-29 | 明冠新材料股份有限公司 | Solar cell backboard |
| CN204303837U (en) * | 2014-12-30 | 2015-04-29 | 明冠新材料股份有限公司 | Solar cell backboard |
| CN204271101U (en) * | 2014-12-31 | 2015-04-15 | 明冠新材料股份有限公司 | A kind of synergistic solar cell back sheet with PE weather-resistant layer |
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