KR102014491B1 - Compostion for heat sink sheet of photovoltaic panel - Google Patents
Compostion for heat sink sheet of photovoltaic panel Download PDFInfo
- Publication number
- KR102014491B1 KR102014491B1 KR1020190060421A KR20190060421A KR102014491B1 KR 102014491 B1 KR102014491 B1 KR 102014491B1 KR 1020190060421 A KR1020190060421 A KR 1020190060421A KR 20190060421 A KR20190060421 A KR 20190060421A KR 102014491 B1 KR102014491 B1 KR 102014491B1
- Authority
- KR
- South Korea
- Prior art keywords
- heat
- heat dissipation
- niobate
- salt
- sheet
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 30
- 239000010439 graphite Substances 0.000 claims abstract description 30
- 239000000203 mixture Substances 0.000 claims abstract description 23
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 12
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 11
- 230000017525 heat dissipation Effects 0.000 claims description 42
- 230000005855 radiation Effects 0.000 claims description 33
- 150000003839 salts Chemical class 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 239000003513 alkali Substances 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- UKDIAJWKFXFVFG-UHFFFAOYSA-N potassium;oxido(dioxo)niobium Chemical class [K+].[O-][Nb](=O)=O UKDIAJWKFXFVFG-UHFFFAOYSA-N 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- UYLYBEXRJGPQSH-UHFFFAOYSA-N sodium;oxido(dioxo)niobium Chemical class [Na+].[O-][Nb](=O)=O UYLYBEXRJGPQSH-UHFFFAOYSA-N 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 24
- 239000011229 interlayer Substances 0.000 description 11
- 239000000138 intercalating agent Substances 0.000 description 10
- 239000010955 niobium Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- 238000009830 intercalation Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000010409 thin film Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 230000002687 intercalation Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 4
- 229910021393 carbon nanotube Inorganic materials 0.000 description 4
- 239000002041 carbon nanotube Substances 0.000 description 4
- 239000003575 carbonaceous material Substances 0.000 description 4
- 229910052758 niobium Inorganic materials 0.000 description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 3
- 238000005342 ion exchange Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- -1 polysiloxanes Polymers 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- YHBDIEWMOMLKOO-UHFFFAOYSA-I pentachloroniobium Chemical compound Cl[Nb](Cl)(Cl)(Cl)Cl YHBDIEWMOMLKOO-UHFFFAOYSA-I 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000001931 thermography Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000010335 hydrothermal treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- CQLFBEKRDQMJLZ-UHFFFAOYSA-M silver acetate Chemical compound [Ag+].CC([O-])=O CQLFBEKRDQMJLZ-UHFFFAOYSA-M 0.000 description 1
- 229940071536 silver acetate Drugs 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
Images
Classifications
-
- 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
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
- H01L23/3736—Metallic materials
-
- 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
Abstract
Description
본 발명은 태양전지 패널의 방열시트용 조성물에 관한 것으로서, 층간 화합물인 흑연 및 니오븀산 알칼리 금속염을 함유함으로써 태양전지 패널의 방열시트의 방열 효율을 향상시킬 수 있는 태양전지 패널의 방열시트용 조성물에 관한 것이다.The present invention relates to a composition for a heat dissipation sheet of a solar cell panel, comprising a graphite and alkali niobate salt as interlayer compounds to a heat dissipation sheet composition of a solar cell panel which can improve the heat dissipation efficiency of the heat dissipation sheet of the solar cell panel. It is about.
일반적으로 태양전지 패널을 이용하여 태양광 발전을 하는 경우 운전 중 태양광의 집적에 의해 온도가 급상승하여 전력 변환 효율이 저하되는 문제점이 있어 태양전지 패널의 배면에 방열시트 또는 방열판을 장착하여 태양전지 패널에서 발생하는 열을 방열하도록 하고 있다. 이러한 방열시트 또는 방열판의 소재로는 열전도율이 높은 알루미늄, 구리와 같은 금속이나 그라파이트, 탄소나노튜브와 같은 탄소 소재를 사용하고 있다.In general, in the case of photovoltaic power generation using a solar cell panel, there is a problem that power conversion efficiency decreases due to a sudden increase in temperature due to the accumulation of solar light during operation, so that a heat radiation sheet or a heat sink is mounted on the back of the solar cell panel. To dissipate heat generated by As a material of the heat dissipation sheet or the heat sink, a metal such as aluminum and copper having high thermal conductivity or a carbon material such as graphite or carbon nanotube is used.
태양광 패널의 경우 표면의 부위별 온도 편차가 크기 때문에 패널 전체가 균일한 온도 특성을 가질 수 있도록 설계할 필요가 있다. 태양광 패널의 특성이 불균일하면 열이 많이 나는 부분부터 손상이 발생하여 서서히 패널 전체 성능이 저하될 수 있고, 여름철에는 외부 온도까지 높아 태양광 패널 효율이 50% 가까이 저하되는 문제점이 있다.In the case of solar panels, since the temperature variation of each part of the surface is large, it is necessary to design the panel to have a uniform temperature characteristics. If the characteristics of the solar panel is non-uniform, a lot of heat may cause damage from the overall performance of the panel may be gradually degraded, and in summer, there is a problem that the efficiency of the solar panel is reduced to near 50% due to the high external temperature.
대한민국 등록특허공보 10-1688880호에서는 그라파이트, 그라핀 옥사이드, 탄소나노튜브, 탄소섬유, 탄화규소, 질화붕소, 질화탄소, 알루미늄, 및 바인더를 혼합하여 기계적 합금화를 이룬 후 이를 방열시트를 제조함으로써 고강도, 내마모성, 저열팽창, 고열전도성 등의 특성을 얻고 있다. 그러나 여러 종류의 탄소 재료들을 혼합하는 경우 제조공정이 복잡하고 성형체의 기계적 안정성이 불충분하여 태양전지 패널에 적용할 때 방열시트가 쉽게 손상되는 문제점이 발생하고 있다.Korean Patent Publication No. 10-1688880 discloses mechanical strength by mixing graphite, graphene oxide, carbon nanotube, carbon fiber, silicon carbide, boron nitride, carbon nitride, aluminum, and a binder, and then manufacturing a heat dissipation sheet. Properties such as wear resistance, low thermal expansion, and high thermal conductivity. However, when various kinds of carbon materials are mixed, the manufacturing process is complicated and the mechanical stability of the molded body is insufficient, so that the heat dissipation sheet is easily damaged when applied to the solar cell panel.
또한, 대한민국 등록특허공보 10-1645641호에서는 태양전지 패널의 방열판으로서 알루미나와 탄소 나노튜브로 이루어진 방열 전기절연성 필러를 포함하는 수지 조성물을 이용하여 방열시트를 제조하고 있으며, 대한민국 등록특허공보 10-1929253호에서는 태양전지 패널의 방열층으로서 탄소 나노튜브, 유기변성 폴리실록산, 에틸알코올로 이루어진 탄소계 소재를 백시트층의 저면에 스프레이도포 또는 인쇄 도포하고 있으며, 대한민국 공개특허공보 10-2012-0038347호에서는 열전도층 하부에 유-무기 복합 하이브리드 도료로 이루어진 열복사 시트를 부착하며, 상기 열복사 시트의 상부 또는 하부에 카본 또는 그라파이트 계열의 블랙 도료를 도포하고 있다.In addition, Korean Patent Publication No. 10-1645641 manufactures a heat dissipation sheet using a resin composition comprising a heat dissipating electrically insulating filler made of alumina and carbon nanotubes as a heat dissipation plate of a solar cell panel, and Republic of Korea Patent Publication No. 10-1929253 In the Korean Laid-Open Patent Publication No. 10-2012-0038347, a carbon-based material composed of carbon nanotubes, organic modified polysiloxanes, and ethyl alcohol is spray coated or printed on the bottom of the back sheet layer. A heat radiation sheet made of an organic-inorganic hybrid hybrid paint is attached to the lower portion of the heat conduction layer, and carbon or graphite-based black paint is applied to the upper or lower portion of the heat radiation sheet.
방열시트의 제조시 탄소계 소재, 특히, 흑연을 사용하는 이유는 흑연이 층간 화합물이기 때문이다. 즉, 층간 결합력이 원자간 결합력에 비해 상대적으로 약하기 때문에 이를 통한 열전달 및 방열의 효과를 얻을 수 있다.The reason for using a carbon-based material, especially graphite, in the manufacture of the heat radiation sheet is that graphite is an interlayer compound. That is, since the interlayer bonding force is relatively weak compared to the interatomic bonding force, heat transfer and heat dissipation effects can be obtained.
출원인은 대한민국 등록특허공보 10-1835385호를 통해 흑연에 층간삽입체를 첨가하여 열전도도를 향상시킨 열전도성 박막을 제조하고 있는데, 이러한 기술을 응용하면 태양전지 패널의 방열시트로서의 성능을 더욱 향상시킨 방열시트의 제조가 가능할 것으로 생각된다.Applicant manufactures a thermally conductive thin film having improved thermal conductivity by adding an intercalator to graphite through Republic of Korea Patent Publication No. 10-1835385, and applying this technology further improves the performance of a solar panel as a heat dissipation sheet. It is thought that the production of the heat dissipation sheet may be possible.
본 발명은 상기와 같은 종래기술을 감안하여 안출된 것으로, 층간 화합물인 흑연과 니오븀산 알칼리 금속염을 포함하는 조성물을 통해 태양전지 모듈의 방열시트의 방열 성능을 향상시킬 수 있는 태양전지 모듈의 방열시트용 조성물을 제공하는 것을 그 목적으로 한다.The present invention has been made in view of the prior art as described above, the heat dissipation sheet of the solar cell module that can improve the heat dissipation performance of the heat dissipation sheet of the solar cell module through a composition comprising graphite and alkali metal niobate salt interlayer compound It aims to provide the composition for this.
상기와 같은 과제를 해결하기 위한 본 발명의 태양전지 패널의 방열시트용 조성물은 태양전지 모듈(solar cell)의 배면에 부착되는 방열시트의 표면에 도포되어 열방사층을 형성하기 위한 조성물로서, 상기 조성물은 흑연 및 니오븀산 알칼리 금속염을 포함하는 것을 특징으로 한다.The composition for a heat dissipation sheet of the solar cell panel of the present invention for solving the above problems is a composition for forming a heat radiation layer is applied to the surface of the heat dissipation sheet attached to the back of the solar cell module (solar cell), the composition It is characterized by containing silver graphite and the alkali metal niobate salt.
이때, 상기 니오븀산 알칼리 금속염은 니오븀산 나트륨염, 니오븀산 칼륨염 또는 니오븀산 나트륨-칼륨염 중 어느 하나일 수 있으며, 흑연이 층간삽입된 것일 수도 있다.In this case, the alkali metal niobate salt may be any one of sodium niobate salt, potassium niobate salt or sodium niobate-potassium salt, and graphite may be intercalated.
본 발명에 따른 태양전지 패널의 방열시트용 조성물은 층간 화합물인 흑연과 니오븀산 알칼리 금속염을 포함하는 조성물을 통해 태양전지 패널의 방열시트의 방열 성능을 향상시키는 효과를 나타낸다.The composition for a heat dissipation sheet of a solar cell panel according to the present invention exhibits the effect of improving the heat dissipation performance of the heat dissipation sheet of the solar cell panel through a composition comprising an interlayer compound of graphite and alkali niobate salt.
도 1은 본 발명에 따른 방열시트 또는 방열판이 장착된 태양광 발전용 태양전지 패널을 나타낸 단면도이다.
도 2는 실시예 및 비교예 1, 2에 대한 50℃ 열원에서의 열방사율을 측정한 결과이다.1 is a cross-sectional view showing a solar cell panel for mounting a heat radiation sheet or a heat sink according to the present invention.
FIG. 2 shows the results of measuring the thermal emissivity at 50 ° C. heat source for Examples and Comparative Examples 1 and 2. FIG.
이하 본 발명을 보다 상세히 설명한다. 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Hereinafter, the present invention will be described in more detail. The terms or words used in this specification and claims are not to be construed as being limited to their ordinary or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best describe their invention. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.
일반적인 태양광 발전용 태양전지 패널은 도 1에서와 같은 구조로 이루어진다. 즉, 투명기판, 상기 투명기판의 하부에 부착되며 상부 및 하부에 완충부재를 구비하는 태양전지 모듈(solar cell), 상기 태양전지 모듈의 하부에 적층되는 태양광 반사층, 상기 태양광 반사층의 하부에 적층되는 방열시트로 이루어진다. 또한, 상기 방열시트는 전도열을 복사 및 방출시키기 위하여 일면에 열방사층이 도포되어 형성된다. A general solar cell panel for photovoltaic power generation has a structure as shown in FIG. 1. That is, a transparent substrate, a solar cell module (solar cell) attached to the lower portion of the transparent substrate and having a buffer member on the upper and lower, a solar reflective layer stacked on the lower portion of the solar cell module, the lower portion of the solar reflective layer It is made of a heat dissipation sheet laminated. In addition, the heat radiation sheet is formed by applying a heat radiation layer on one surface in order to radiate and radiate conductive heat.
또한, 필요에 따라 상기 태양전지 모듈의 하부에 추가적인 층들 적층구조를 형성할 수도 있는데, 태양전지 모듈을 투과하는 태양광을 반사시킴으로써 발전 효율을 증가시키기 위한 태양광 반사층, 백시트, 내구성 향상을 위한 코팅층 등이 추가적으로 형성될 수 있다.In addition, if necessary, additional layers may be formed in the lower part of the solar cell module. A solar reflective layer, a back sheet, for improving durability by reflecting sunlight passing through the solar cell module, and for improving durability A coating layer or the like may be additionally formed.
상기 열방사층은 열복사층이라고도 불리며 열전도성이 높은 방열시트로부터 전달되는 전도열을 효율적으로 복사 및 방출시키기 위해 필요한 구성이다. 통상적으로 이러한 열방사층은 고분자 시트나 무기도료 또는 유무기 복합 하이브리드 도료로 구성되는데, 열방사층의 방열 속도에 따라 방열시트의 방열 효율이 크게 영향을 받기 때문에 본 발명에서는 상기 열방사층을 구성하는 조성물을 최적화하고 있다.The thermal radiation layer is also referred to as a thermal radiation layer and is a configuration necessary for efficiently radiating and dissipating conductive heat transmitted from a thermally conductive thermal radiation sheet. Typically, such a thermal radiation layer is composed of a polymer sheet or an inorganic paint or an organic-inorganic hybrid hybrid paint, the heat radiation efficiency of the heat radiation sheet is greatly affected by the heat radiation rate of the heat radiation layer in the present invention, the composition constituting the heat radiation layer Optimizing
본 발명에서는 상기 조성물로서 흑연 및 니오븀산 알칼리 금속염을 포함하는 조성물을 사용하고 있다.In the present invention, a composition containing graphite and an alkali metal niobate salt is used as the composition.
상기 흑연은 층상 화합물로서 열전도성이 우수하여 방열용 재료로서 널리 사용되고 있다.The graphite is widely used as a heat dissipation material due to its excellent thermal conductivity as a layered compound.
본 발명에서는 상기 흑연에 층간삽입제를 첨가하여 제조한 팽창흑연을 사용하고 있다. 상기 팽창흑연은 대한민국 등록특허공보 10-1835385호에 개시된 공정에 따라 산화제를 도입하여 층간삽입 처리함으로써 제조될 수 있다. In the present invention, expanded graphite prepared by adding an intercalating agent to the graphite is used. The expanded graphite may be prepared by introducing an oxidizing agent according to the process disclosed in Korean Patent Publication No. 10-1835385 and intercalating.
상기 팽창흑연은 열전달 속도가 800W/mk로서, 일반적으로 사용되는 알루미늄이 167W/mk인 것을 고려하면, 약 4배 이상 열전달 및 방출 속도가 증가될 수 있다.The expanded graphite has a heat transfer rate of 800 W / mk, and considering that aluminum is generally used at 167 W / mk, the heat transfer and release rate may be increased by about four times or more.
또한, 상기 층간삽입 공정에 사용되는 층간삽입제나 공정 조건에 따라 상기 팽창흑연의 층간 거리를 조절할 수 있는데, 본 발명에서는 방열시트의 열방사층을 구성하기 위하여 사용되기 때문에 입자 크기가 50 내지 200㎛이며 밀도가 0.9 내지 1.0g/㎤의 흑연에 층간삽입제인 황산 및 가염소산을 가하여 팽창처리한 팽창흑연을 사용하는 것이 바람직하다.In addition, the interlayer distance of the expanded graphite can be adjusted according to the intercalating agent used in the intercalation process or the process conditions. In the present invention, the particle size is 50 to 200 μm because it is used to form a thermal radiation layer of the heat dissipation sheet. It is preferable to use expanded graphite expanded by adding sulfuric acid and hydrochloric acid as intercalating agents to graphite having a density of 0.9 to 1.0 g / cm 3.
상기 팽창흑연과 함께 포함되는 니오븀산 알칼리 금속염은 흑연과 마찬가지로 층상 화합물로서 전자재료, 촉매 등에 사용되고 있는데, 방열을 목적으로 하는 소재로서는 거의 사용되고 있지 않다. 그러나 상기 니오븀산 알칼리 금속염은 층간삽입 공정에 의해 다양한 물질을 층간삽입할 수 있고, 이에 따라 층간 거리를 조절하거나 층상 구조를 완전히 박리하면 나노시트를 형성할 수도 있어 다양한 특성을 나타내는 물질이다.Alkali niobate metal salt contained together with the expanded graphite is used as an electronic material, a catalyst, etc. as a layered compound like graphite, but is rarely used as a material for heat dissipation. However, the alkali metal niobate salt may be intercalated with various materials by an intercalation process, and accordingly, nanosheets may be formed when the interlayer distance is adjusted or the layered structure is completely peeled off, thereby exhibiting various characteristics.
상기 니오븀산 알칼리 금속염은 니오븀산 나트륨염, 니오븀산 칼륨염 또는 니오븀산 나트륨-칼륨염 중 어느 하나를 들 수 있는데, 구체적으로는, KNb3O8, K4Nb6O17, NaNb3O8, Na4Nb6O17, NaxK1-xNbO3 (이때, 0.05≤x≤0.9, 바람직하게는, 0.1≤x≤0.5) 등을 들 수 있다.The alkali niobate metal salt may be any one of sodium niobate salt, potassium niobate salt or sodium niobate-potassium salt. Specifically, KNb 3 O 8 , K 4 Nb 6 O 17 , NaNb 3 O 8 , Na 4 Nb 6 O 17 , Na x K 1-x NbO 3 (at this time 0.05 ≦ x ≦ 0.9, preferably 0.1 ≦ x ≦ 0.5).
예를 들어, K4Nb6O17의 경우, 일반적인 층간 거리가 0.95 내지 1.05㎚인데, 층간삽입제를 부가하면 층간 거리가 삽입되는 분자의 크기만큼 확장될 수 있다. 상기 층간삽입제로는 EDTA와 같은 착화합물, 금속, 금속 산화물, 유기 화합물 등 다양한 물질을 적용할 수 있다.For example, for K 4 Nb 6 O 17 , the typical interlayer distance is 0.95 to 1.05 nm, with the addition of an intercalator allowing the interlayer distance to be extended by the size of the molecule being inserted. As the intercalating agent, various materials such as complex compounds such as EDTA, metals, metal oxides, and organic compounds may be applied.
상기 니오븀산은 일반적으로 열전도도가 0.1W/m·K 이하인 물질이나, 이러한 니오븀산의 층간삽입을 이용하여 상기 니오븀산의 층상 구조 내에 열전도도가 높은 알루미늄(Al, 열전도도: 235~240W/m·K), 구리(Cu, 열전도도: 385~400W/m·K), 은(Ag, 열전도도: 406~430W/m·K)를 삽입하면 흑연과 함께 병용할 때 방열 효과를 크게 향상시킬 수 있는 것으로 나타났다.The niobium acid is generally a material having a thermal conductivity of 0.1 W / m · K or less, but aluminum having high thermal conductivity (Al, thermal conductivity: 235 to 240 W / m in the layered structure of niobium acid by using the intercalation of niobium acid is used. Inserting K), copper (Cu, thermal conductivity: 385 ~ 400W / mK), silver (Ag, thermal conductivity: 406 ~ 430W / mK) greatly improves the heat dissipation effect when used in combination with graphite. It turns out that you can.
상기 니오븀산 알칼리 금속염은 산화니오븀(Nb2O5)과 탄산칼륨(K2CO3), 탄산나트륨(Na2CO3) 또는 탄산칼슘과 탄산나트륨의 혼합물을 화학양론적인 혼합하고 이를 1,000 내지 1,100℃에서 10 내지 15시간 동안 하소함으로써 제조할 수 있고, 또한, 액상을 형성할 수 있는 염화니오븀과 수산화칼륨 및/또는 수산화나트륨을 혼합한 용액을 수열처리함으로써 제조할 수도 있다. 또한, 상기 니오븀산 알칼리 금속염을 양이온(H+)으로 교환한 후 다시 알루미늄(Al), 구리(Cu), 또는 은(Ag)의 금속염과 이온교환함으로써 층간삽입된 니오븀산 알칼리 금속염을 제조할 수 있다.The alkali niobate metal salt is stoichiometrically mixed with niobium oxide (Nb 2 O 5 ) and potassium carbonate (K 2 CO 3 ), sodium carbonate (Na 2 CO 3 ) or a mixture of calcium carbonate and sodium carbonate and at 1,000 to 1,100 ° C. It can be produced by calcining for 10 to 15 hours, and can also be prepared by hydrothermal treatment of a solution in which niobium chloride and potassium hydroxide and / or sodium hydroxide which can form a liquid phase are mixed. In addition, the intercalated alkali niobate metal salt can be prepared by exchanging the alkali niobate metal salt with a cation (H + ) and then ion-exchanging with a metal salt of aluminum (Al), copper (Cu), or silver (Ag). have.
상기 층간삽입제는 니오븀 100몰%를 기준으로 50 내지 100몰%의 범위에서 함유될 수 있다. 상기 층간삽입제의 함량을 증가시키기 위해서는 층간삽입 시간, 산도 등을 조절해야 하는데 지나치게 함량이 증가되면 니오븀산 알칼리 금속염의 층상 구조가 파괴되어 방열 효과가 오히려 감소하는 것으로 나타났고, 층간삽입제의 함량이 지나치게 적은 경우 층간 거리의 증가가 불충분하여 방열 효과가 충분히 향상되지 않는 것으로 나타났다.The intercalating agent may be contained in a range of 50 to 100 mol% based on 100 mol% niobium. In order to increase the content of the intercalator, the intercalation time, acidity, etc. should be controlled. If the content is excessively increased, the layered structure of the alkali metal niobate salt is destroyed and the heat dissipation effect is rather decreased. When too small, the increase of the interlayer distance was insufficient, and the heat dissipation effect was not sufficiently improved.
또한, 상기 흑연과 니오븀산 알칼리 금속염은 1:0.5 내지 1:0.8의 중량비로 배합되는 것이 바람직한 것으로 나타났는데, 상기 니오븀산 알칼리 금속염의 함량이 지나치게 적으면 흑연만 사용하여 열방사층을 형성할 때와 방열 효과에서 거의 차이가 없으며, 니오븀산 알칼리 금속염의 함량이 지나치게 많으면 내구성이 저하되어 열방사층을 형성하기 곤란한 것으로 나타났다.In addition, it was shown that the graphite and the alkali metal niobate salt are preferably blended in a weight ratio of 1: 0.5 to 1: 0.8. There is almost no difference in the heat dissipation effect, and when the content of alkali niobate alkali metal salt is too high, durability is lowered and it is difficult to form a heat radiation layer.
또한, 상기 열방사층을 형성할 때 상기 조성물을 집진하고 판상성형한 후 가압 롤러를 이용하여 압연함으로서 박막 형태로 제조할 수도 있고, 바인더를 부가하여 코팅제를 제조한 후 상기 방열시트의 표면에 도포하고 경화시킬 수도 있다. In addition, when the thermal radiation layer is formed, the composition is collected, plate-shaped, and then rolled using a pressure roller, which may be manufactured in a thin film form. It can also harden.
박막 형태로 제조하는 경우 상기 방열시트와의 사이에 접착층을 개재한 후 접착시킬 수 있으며, 이 경우, 상기 접착층은 상기 방열시트와 태양전지 모듈을 접착시킬 때와 동일한 종류의 접착제를 사용하여 형성할 수 있다. 상기 접착제로는 내열 및 방열 성능이 우수한 아크릴, 에틸렌초산비닐 공중합체, 또는 우레탄 계열의 열전도성 접착제를 사용할 수 있다.In the case of manufacturing in a thin film form, the adhesive layer may be interposed between the heat dissipating sheet and the adhesive layer, and in this case, the adhesive layer may be formed by using the same kind of adhesive as the heat dissipating sheet and the solar cell module. Can be. As the adhesive, acrylic, ethylene vinyl acetate copolymer, or urethane-based thermal conductive adhesive having excellent heat resistance and heat dissipation performance may be used.
또한, 코팅제를 제조하는 경우 상기 바인더로는 수산화알루미늄, 인산, 탄산칼륨을 혼합한 수용액을 교반하여 제조한 슬러리를 사용할 수 있는데, pH를 고려하여 수산화알루미늄 10 내지 20 중량부에 대하여 인산 40 내지 50 중량부, 탄산칼륨 5 내지 10 중량부, 물 10 내지 20 중량부의 비율로 혼합하여 슬러리를 제조하는 것이 바람직하다. 또한, 상기 바인더는 5 내지 50 중량부의 범위에서 사용하는데 바인더의 함량이 지나치게 적으면 열방사층의 내구성이 저하되며 지나치게 많아도 재료의 뭉침현상이 발생하여 열방사층의 물성이 저하될 수 있으므로 상기 범위에서 사용하는 것이 바람직하다.In addition, when preparing a coating agent, a slurry prepared by stirring an aqueous solution of aluminum hydroxide, phosphoric acid, and potassium carbonate may be used as the binder, and 40 to 50 phosphoric acid may be used with respect to 10 to 20 parts by weight of aluminum hydroxide in consideration of pH. It is preferable to prepare a slurry by mixing in the ratio of a weight part, 5-10 weight part of potassium carbonate, and 10-20 weight part of water. In addition, the binder is used in the range of 5 to 50 parts by weight, but if the content of the binder is too small, the durability of the thermal radiation layer is lowered, and even if it is too much, the material may be aggregated and the physical properties of the thermal radiation layer may be deteriorated. It is desirable to.
이러한 본 발명의 방열시트는 흑연의 빠른 열 확산력을 이용하기 때문에 온도가 높은 부위의 열을 상대적으로 낮은 부위로 빨리 이동시켜 열평형을 이룰 수 있다. 또한, 열평형에 의한 부분 열 폭주 데미지를 최소화시키기 때문에 전력을 보다 안정적으로 생산하고 열 데미지로 인한 에너지 생산 효율이 시간 변화에 따라 감소하는 문제점을 해결할 수 있다. 또한, 태양광 패널에서 흑연을 통해 외부로 직접 열을 발산하기에 방열 효과가 커 여름철 성능 저하를 막을 수 있다.Since the heat dissipation sheet of the present invention uses the rapid heat spreading force of the graphite, it is possible to achieve thermal equilibrium by quickly moving heat of a high temperature portion to a relatively low portion. In addition, since the partial thermal runaway damage caused by thermal balance is minimized, more stable power generation and energy production efficiency due to thermal damage may be solved. In addition, since the solar panel directly radiates heat to the outside through graphite, the heat dissipation effect is large, thereby preventing summer performance deterioration.
상기 열방사층은 0.02 내지 0.2㎜의 두께로 이루어지는 것이 바람직하며, 방열시트의 종류나 두께에 따라 적절히 선택될 수 있다. 다만, 열방사층의 두께가 지나치게 얇으면 효율적으로 열을 방사할 수 없어 열이 축적되는 현상이 발생할 수 있고, 지나치게 두꺼워도 열 전달 효율이 저하되어 방열 효과가 저하될 수 있으므로 상기 범위로 형성하는 것이 바람직하다.The thermal radiation layer is preferably made of a thickness of 0.02 to 0.2mm, it may be appropriately selected according to the type or thickness of the heat radiation sheet. However, if the thickness of the thermal radiation layer is too thin, heat cannot accumulate efficiently and heat may accumulate, and even if it is too thick, the heat transfer efficiency may deteriorate and the heat dissipation effect may deteriorate. desirable.
본 발명에 따른 조성물을 이용하여 열방사층을 형성할 때 방열시트의 방열 효율이 어느 정도 상승하는지 시료를 제작하여 시험평가를 실시하였다.When the thermal radiation layer was formed using the composition according to the present invention, a sample was produced to evaluate how much the heat radiation efficiency of the heat radiation sheet increased.
상기 조성물을 구성하는 흑연을 제조하기 위하여 인조 흑연 분말을 50 내지 500㎛로 1차 분급하고 100 내지 300㎛ 크기의 입자를 2차 분급하여 흑연 분말을 얻었다.In order to prepare graphite constituting the composition, artificial graphite powder was first classified into 50 to 500 μm, and particles of 100 to 300 μm in size were classified second to obtain graphite powder.
상기 흑연 분말을 수소 환원로에 넣고 10-2Torr 의 감압 조건에서 2,000℃의 온도로 열처리하였다. 열처리를 마친 흑연 분말을 반응기에 투입한 후 층간삽입제로 50 농도%의 황산, 50% 농도의 과염소산을 6:4의 중량비로 배합하여 첨가하였으며, 반응기에서 혼합을 실시한 후 세척 및 건조하였다.The graphite powder was placed in a hydrogen reduction furnace and heat treated at a temperature of 2,000 ° C. under reduced pressure of 10 −2 Torr. After the heat-treated graphite powder was added to the reactor, 50% by weight of sulfuric acid and 50% by weight of perchloric acid were added at a weight ratio of 6: 4 by using an intercalating agent, and the mixture was washed and dried after mixing in the reactor.
또한, 층간삽입제로 처리된 흑연 분말을 1,500℃에서 열처리하여 팽창흑연을 제조하였다.In addition, expanded graphite was prepared by heat-treating the graphite powder treated with the intercalating agent at 1,500 ° C.
다음으로 니오븀산 알칼리 금속염을 제조하기 위하여 염화니오븀을 염산 수용액에 용해시켜 1M NbCl5의 0.2M 염산 수용액을 제조하였다. 제조된 수용액에 수산화칼륨의 수용액을 가하여 혼합한 후 100℃에서 24시간 동안 정치하였다. 이를 수열합성기에 옮겨 5시간 동안 수열합성을 수행하여 현탁액을 얻었다. 상기 현탁액을 원심분리하여 니오븀산 칼륨(K4Nb6O17) 입자를 얻었다.Next, in order to prepare an alkali metal niobate salt, niobium chloride was dissolved in an aqueous hydrochloric acid solution to prepare a 0.2 M hydrochloric acid aqueous solution of 1 M NbCl 5 . An aqueous solution of potassium hydroxide was added to the prepared aqueous solution, mixed, and allowed to stand at 100 ° C for 24 hours. It was transferred to a hydrothermal synthesizer and subjected to hydrothermal synthesis for 5 hours to obtain a suspension. The suspension was centrifuged to give potassium niobate (K 4 Nb 6 O 17 ) particles.
제조된 니오븀산 칼륨을 6M의 질산 수용액에 3일간 두어 양이온(H+) 교환을 실시한 후 100 중량부의 니오븀산 칼륨에 대하여 50 중량부의 부틸아민 수용액(10%v/v)을 가하고 현탁액을 제조한 후 80℃에서 20일 간 환류하였다. 환류가 종료된 현탁액에서 과량의 부틸아민을 제거한 후 수용액을 형성하고 이를 실온에서 7일간 각반하였고, 고상부를 제거하고 남은 현탁액에 1 중량부의 아세트산은(C2H3AgO2)을 부가하고 80℃에서 7일간 이온교환하였다. 이온교환이 완료된 후 K4Nb6O17의 표면에 잔존하는 은 이온을 증류수와 에탄올을 사용하여 제거함으로써 Ag가 층간에 삽입된 K4Nb6O17를 제조하였다. 또한, Ag의 층간삽입 전후의 XRD 측정을 통해 d 040의 증가로부터 Ag의 삽입을 확인하였다.The prepared potassium niobate was placed in 6M aqueous nitric acid solution for 3 days to carry out cation (H + ) exchange, and then 50 parts by weight of aqueous solution of butylamine (10% v / v) was added to 100 parts by weight of potassium niobate to prepare a suspension. After refluxing at 80 ℃ for 20 days. Excess butylamine was removed from the suspension at reflux to form an aqueous solution, which was quenched at room temperature for 7 days, and the solid phase was removed, and 1 part by weight of silver acetate (C 2 H 3 AgO 2 ) was added to the remaining suspension and 80 ° C. Ion exchange for 7 days at. After the ion exchange is complete to prepare a K 4 Nb 6 O 17 is remaining on the surface of the ion removal by using a distilled water and ethanol is inserted into the interlayer of Ag K 4 Nb 6 O 17. Also, Ag insertion was confirmed from the increase of d 040 through XRD measurement before and after intercalation of Ag.
상기 흑연 분말과 니오븀산 칼륨 분말을 1:0.6의 중량비로 집진하고 판상 성형한 후 가압 롤러를 이용하여 5회 압연함으로써 평균 0.1㎜ 두께의 박막을 제조하였다. 상기 박막을 알루미늄 재질의 방열시트에 합지하여 열방사층을 형성하여 방열시트 전체의 두께는 0.8㎜가 되도록 하였다(실시예).The graphite powder and the potassium niobate powder were collected at a weight ratio of 1: 0.6, plate-shaped, and rolled five times using a pressure roller to prepare a thin film having an average thickness of 0.1 mm. The thin film was laminated on a heat radiating sheet made of aluminum to form a heat radiating layer so that the entire thickness of the radiating sheet was 0.8 mm (Example).
비교를 위하여 대한민국 등록특허 10-1835385호에 따른 팽창흑연을 판상 성형한 후 압연하여 제조한 평균 0.1㎜ 두께의 박막을 알루미늄 재질의 방열시트에 합지하여 열방사층을 형성하여 방열시트 전체의 두께는 0.8㎜가 되도록 형성되었다(비교예 1).For comparison, a thin film having an average thickness of 0.1 mm prepared by rolling and then rolling the expanded graphite according to Korean Patent No. 10-1835385 was laminated on a heat radiation sheet made of aluminum to form a heat radiation layer. It was formed so that it might be mm (comparative example 1).
제조된 방열판에 대한 열확산율(thermal diffusivity)을 열분석기(NETZSCH LFA 447)를 사용하여 측정하였다. 그 결과 실시예의 경우, 25℃에서의 열확산율이 402.852W/m·K로서 25℃에서의 열확산율이 238.872W/m·K인 비교예에 비해 41% 정도의 방열 효율이 상승되는 효과를 얻었다.The thermal diffusivity of the prepared heat sink was measured using a thermal analyzer (NETZSCH LFA 447). As a result, in the case of Example, the heat diffusion efficiency at 25 ° C. was 402.852 W / m · K, and the heat dissipation efficiency at 41 ° C. was increased by 41% compared to the comparative example in which the heat diffusion rate at 25 ° C. was 238.872 W / m · K. .
또한, 열화상 카메라를 이용하여 방열 효과를 측정하였다. 온도 측정을 위하여 열원 하단 15㎜ 부분에서 측정 지그에 방열시트를 부착한 후 시료 상단 중앙 기준으로부터 30㎜ 하단 지점(spot 1)과 시료 하단 중앙 기준으로부터 5㎜ 상단 지점(spot 2)을 측정하였고, 위 측정값의 차이를 구하였다. 또한, 측정거리는 300㎜, 측정각도는 90도였다. 50℃의 열원에 대하여, 실시예, 비교예 1 및 시판되는 알루미늄 재질로 이루어진 1.0㎜의 방열시트(비교예 2)에 대한 열화상 카메라 측정 결과는 도 2와 같다.In addition, the heat radiation effect was measured using a thermal imaging camera. In order to measure the temperature, after attaching the heat radiation sheet to the measuring jig at the lower part of the heat source, the 30 mm lower point (spot 1) and the 5 mm upper point (spot 2) were measured from the center of the sample bottom. The difference between the above measurements was obtained. In addition, the measurement distance was 300 mm and the measurement angle was 90 degrees. For the heat source at 50 ° C., the thermal imaging camera measurement results for the heat dissipation sheet (Comparative Example 2) of 1.0 mm made of Example, Comparative Example 1, and commercially available aluminum were as shown in FIG. 2.
도 2의 결과를 살펴보면, 실시예의 경우 spot 1에서의 온도가 38.4℃이며 spot 2에서의 온도가 42.4℃로 높은 방열 성능을 나타내었으나, 비교예 1의 경우 spot 1 및 2에서 각각 29.8, 34.0℃로 방열 성능이 상대적으로 낮게 나타났다. 이러한 방열 성능은 시판되는 알루미늄 재질의 방열시트(비교예 2)에 비해서는 높은 수치이나 본 발명에 따른 열방사층이 적용된 방열시트에 비해서는 낮은 것으로서, 본 발명에 따른 열방사층이 적용될 때 방열시트의 방열 효율이 크게 향상되는 결과를 시사하는 것이다.Referring to the results of FIG. 2, in the case of Example 1, the temperature at spot 1 was 38.4 ° C. and the temperature at spot 2 was 42.4 ° C., but in the case of Comparative Example 1, 29.8 and 34.0 ° C. were observed at spot 1 and 2, respectively. The heat dissipation performance is relatively low. This heat dissipation performance is higher than that of a commercially available aluminum heat dissipation sheet (Comparative Example 2), but lower than the heat dissipation sheet to which the heat dissipation layer according to the present invention is applied. This suggests that the heat dissipation efficiency is greatly improved.
본 발명의 권리는 위에서 설명된 실시예에 한정되지 않고 청구범위에 기재된 바에 의해 정의되며, 본 발명의 분야에서 통상의 지식을 가진 자가 청구범위에 기재된 권리범위 내에서 다양한 변형과 개작을 할 수 있다는 것은 자명하다.The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.
Claims (3)
상기 조성물은 흑연 및 니오븀산 알칼리 금속염을 포함하며,
상기 니오븀산 알칼리 금속염은 구리, 은, 알루미늄 중 어느 하나의 금속이 층간삽입된 니오븀산 알칼리 금속염인 것을 특징으로 하는 태양전지 패널의 방열시트용 조성물.
A composition for forming a heat radiation layer is applied to the surface of the heat radiation sheet attached to the back of the solar cell module (solar cell),
The composition comprises graphite and an alkali metal niobate salt,
The alkali niobate metal salt is a composition for a heat dissipation sheet of a solar cell panel, characterized in that the alkali metal niobate salt of any one of the metal, copper, silver, aluminum intercalated.
상기 니오븀산 알칼리 금속염은 니오븀산 나트륨염, 니오븀산 칼륨염 또는 니오븀산 나트륨-칼륨염 중 어느 하나인 것을 특징으로 하는 태양광 모듈의 방열시트용 조성물.
The method according to claim 1,
The alkali niobate metal salt is a composition for a heat dissipation sheet of a solar module, characterized in that any one of sodium niobate salt, potassium niobate salt or sodium niobate-potassium salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190060421A KR102014491B1 (en) | 2019-05-23 | 2019-05-23 | Compostion for heat sink sheet of photovoltaic panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190060421A KR102014491B1 (en) | 2019-05-23 | 2019-05-23 | Compostion for heat sink sheet of photovoltaic panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR102014491B1 true KR102014491B1 (en) | 2019-08-26 |
Family
ID=67806448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020190060421A KR102014491B1 (en) | 2019-05-23 | 2019-05-23 | Compostion for heat sink sheet of photovoltaic panel |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR102014491B1 (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090094098A (en) * | 2006-12-22 | 2009-09-03 | 도요탄소 가부시키가이샤 | Graphite material and method for manufacturing the same |
| KR101090119B1 (en) * | 2010-09-27 | 2011-12-07 | 김민혁 | Solar photovoltaic module having graphite sheet |
| KR20120038347A (en) | 2010-10-13 | 2012-04-23 | 에플럭스(주) | Radiant heat structure of solar cell for photovoltaic power generation |
| KR101645641B1 (en) | 2016-04-15 | 2016-08-05 | 곽철원 | Solar power generating system using polymer heat sink |
| KR101688880B1 (en) | 2016-03-08 | 2016-12-23 | 주식회사 가남 | High-efficiency heat dissipation material for solar inverters and manufacturing method of the same |
| JP2017537861A (en) * | 2014-10-15 | 2017-12-21 | ベイカー ヒューズ インコーポレイテッド | Article containing carbon composite and method for producing the same |
| KR101835385B1 (en) | 2017-09-29 | 2018-03-09 | 인동전자(주) | Preparation method of thermal conductive thin film using artificial graphite powder |
| KR20180114093A (en) * | 2016-02-09 | 2018-10-17 | 나노텍 인스트러먼츠, 인코포레이티드 | Non-pollution production of graphene-reinforced inorganic matrix composites |
| KR101929253B1 (en) | 2018-07-27 | 2018-12-14 | 에이펙스인텍 주식회사 | Solar Cell Panel with Heatsink Layer |
-
2019
- 2019-05-23 KR KR1020190060421A patent/KR102014491B1/en active IP Right Grant
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090094098A (en) * | 2006-12-22 | 2009-09-03 | 도요탄소 가부시키가이샤 | Graphite material and method for manufacturing the same |
| KR101090119B1 (en) * | 2010-09-27 | 2011-12-07 | 김민혁 | Solar photovoltaic module having graphite sheet |
| KR20120038347A (en) | 2010-10-13 | 2012-04-23 | 에플럭스(주) | Radiant heat structure of solar cell for photovoltaic power generation |
| JP2017537861A (en) * | 2014-10-15 | 2017-12-21 | ベイカー ヒューズ インコーポレイテッド | Article containing carbon composite and method for producing the same |
| KR20180114093A (en) * | 2016-02-09 | 2018-10-17 | 나노텍 인스트러먼츠, 인코포레이티드 | Non-pollution production of graphene-reinforced inorganic matrix composites |
| KR101688880B1 (en) | 2016-03-08 | 2016-12-23 | 주식회사 가남 | High-efficiency heat dissipation material for solar inverters and manufacturing method of the same |
| KR101645641B1 (en) | 2016-04-15 | 2016-08-05 | 곽철원 | Solar power generating system using polymer heat sink |
| KR101835385B1 (en) | 2017-09-29 | 2018-03-09 | 인동전자(주) | Preparation method of thermal conductive thin film using artificial graphite powder |
| KR101929253B1 (en) | 2018-07-27 | 2018-12-14 | 에이펙스인텍 주식회사 | Solar Cell Panel with Heatsink Layer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Tan et al. | Anisotropically oriented carbon films with dual‐function of efficient heat dissipation and excellent electromagnetic interference shielding performances | |
| ES2375375T3 (en) | THERMAL ARTICLE WITH STRUCTURE OF S�? NDWICH. | |
| CN101060974B (en) | Sandwiched finstock | |
| TWI566947B (en) | Heat release element, electronic device and battery | |
| Choi et al. | Synthesis of silica-coated graphite by enolization of polyvinylpyrrolidone and its thermal and electrical conductivity in polymer composites | |
| CN109206961B (en) | Graphene electric-conduction heat-conduction coating and preparation method thereof | |
| JP6023474B2 (en) | Thermally conductive insulating sheet, metal base substrate and circuit board, and manufacturing method thereof | |
| Jeon et al. | Fabrication and characterization of WO 3/Ag/WO 3 multilayer transparent anode with solution-processed WO 3 for polymer light-emitting diodes | |
| US20200114622A1 (en) | Process for highly conductive graphitic thick films | |
| CN105722375A (en) | Graphene radiating apparatus and preparation method therefor | |
| CN101563219B (en) | Dimensionally stable, leak-free graphite matrix | |
| CN1679383A (en) | Heat sink made from longer and shorter graphite sheets | |
| CN106400012B (en) | A kind of metal surface is anticorrosive/heat dissipation/Electromagnetism Shield Composite Coating preparation method | |
| KR101688880B1 (en) | High-efficiency heat dissipation material for solar inverters and manufacturing method of the same | |
| CN108598051B (en) | High-thermal-conductivity graphene carbon nano slurry and preparation method thereof | |
| KR101043346B1 (en) | Organo-inorganic hybrid composition with excellent thermal radiation and thermal radiation sheet of thin layer type which uses this | |
| CN102730675A (en) | High-heat-conducting graphite membrane and preparation method thereof | |
| CN111747385B (en) | In-situ synthesis boron nitride nanosheet-nanotube composite material and preparation method thereof | |
| CN110255538A (en) | A kind of preparation method of graphene cooling fin | |
| KR102014491B1 (en) | Compostion for heat sink sheet of photovoltaic panel | |
| Shi et al. | Janus 2D titanium nitride halide TiNX 0.5 Y 0.5 (X, Y= F, Cl, or Br, and X≠ Y) monolayers with giant out-of-plane piezoelectricity and high carrier mobility | |
| US20200116443A1 (en) | Highly conductive graphitic thick films and method of production | |
| KR102014486B1 (en) | Compostion for heat sink sheet of photovoltaic panel | |
| CN113943515A (en) | Preparation method of reduced graphene oxide/copper nanoparticle modified epoxy resin composite material | |
| Moyano et al. | Remarkable effects of an electrodeposited copper skin on the strength and the electrical and thermal conductivities of reduced graphene oxide-printed scaffolds |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant |