CN103762260A - 太阳能电池组件用封装胶膜 - Google Patents
太阳能电池组件用封装胶膜 Download PDFInfo
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Abstract
本发明公开了一种太阳能电池组件用封装胶膜,它是通过在制备胶膜的过程中掺入平均粒径为0.1μm~50μm的球形透明材料得到;球形透明材料的用量为胶膜总量的0.01wt%~10wt%;所述的球形透明材料为透明高分子微球、球形透明玻璃微珠、球形透明陶瓷微珠中的至少一种;所述的透明高分子微球为PMMA微球、PC微球、PS微球、PET微球中的至少一种。本发明通过向胶膜中掺入球形透明材料,利用球形透明材料的漫反射功能增加光线在胶膜中的折射反射次数,进而可以提高太阳能电池组件的光通量,进而提高发电功率。
Description
技术领域
本发明属于光伏组件技术领域,具体涉及一种太阳能电池组件用封装胶膜。
背景技术
随着世界经济和社会的发展,常规能源供应短缺危机日益严重。同时,化石能源的大量开发利用已成为造成自然环境污染和人类生存环境恶化的主要原因之一。因此,开发和利用新能源已经成为人类社会发展必须解决的重大问题。
在各种新能源中,太阳能光伏发电具有无污染、可持续、总量大、分布广、利用形式多样等优点,受到世界各国的高度重视。我国已经将发展太阳能光伏产业作为保障能源供应、推动经济结构调整的重要举措。《太阳能光伏产业“十二五”发展规划》中明确提出:2015年和2020年我国的光伏发电装机容量将由目前的0.8GW分别提高到10GW和50GW。《国务院关于加快培育和发展战略性新兴产业的决定》更是将光伏产业列入了我国未来发展的战略性新兴产业重要方向。
随着光伏产业的进一步发展,单位面积的发电量(也称发电功率)的提高成为了光伏技术发展的主旋律。
光伏组件(也称太阳能电池组件)主要由钢化玻璃、电池片、背板以及粘结它们的封装胶膜组成,其中粘结钢化玻璃与电池片的通常称为上胶膜,粘结电池片与背板的则通常称为下胶膜。
传统的提高太阳能电池组件发电功率的方法主要有:提高钢化玻璃的透过率、提高电池片的转换效率以及提高背板的反射率。
近年来,也有通过对下胶膜进行改进从而提高发电功率的文献报道。
但是,尚未发现通过对上胶膜进行改进来提高发电功率的文献报道。
发明内容
本发明的目的在于解决上述问题,提供一种太阳能电池组件用封装胶膜,该封装胶膜作为上胶膜使用可以提高太阳能电池组件发电功率的。
实现本发明目的的技术方案是:一种太阳能电池组件用封装胶膜,它是通过在制备胶膜的过程中掺入平均粒径为0.1μm~50μm的球形透明材料得到。
所述的球形透明材料为球形透明高分子微珠(又称透明高分子微球)、球形透明玻璃微珠(又称透明玻璃微球)、球形透明陶瓷微珠(又称透明陶瓷微球)中的至少一种,优选球形透明高分子微珠或者球形透明玻璃微珠。
所述的透明高分子微球为PMMA(聚甲基丙烯酸甲酯)微球、PC(聚碳酸酯)微球、PS(聚苯乙烯)微球、PET(聚对苯二甲酸乙二醇酯)微球中的至少一种。
所述的球形透明材料的用量为胶膜总量的0.01wt%~10wt%,优选0.1wt~1wt%。
所述的球形透明材料的平均粒径优选1μm~5μm。
目前,制备封装胶膜的常规方法均是先将主体材料和辅助材料混合均匀,然后加入到挤出机中熔融挤出,接着冷却成型,最后牵引收卷即得胶膜成品。
其中主体材料包括POE、EVA、PVB、TPU、环氧树脂、有机硅等,可以采用一种主体材料,也可以采用两种或者两种以上的主体材料。
辅助材料通常包括交联剂、助交联剂、增粘剂、紫外线吸收剂、抗氧剂、偶联剂等等。
本发明的球形透明材料就是在混合均匀时掺入到主体材料和其它辅助材料中。
本发明具有的积极效果:(1)本发明通过向胶膜中掺入球形透明材料,利用球形透明材料的漫反射功能增加光线在胶膜中的折射反射次数,进而可以提高太阳能电池组件的光通量,进而提高发电功率。(2)本发明的太阳能电池组件用封装胶膜可以根据胶膜使用条件的不同选择高分子材料、玻璃材料或者陶瓷材料,具有广泛的应用前景。
具体实施方式
(实施例1)
本实施例的太阳能电池组件用封装胶膜的主体材料为POE(乙烯-辛烯共聚物),它由下述重量份的组分制成:
100g的POE,0.7g的叔丁基过氧化-2-乙基己基碳酸酯,0.5g的三羟甲基丙烷三甲基丙烯酸甲酯,0.5g的3-甲基丙烯酰氧基丙基三甲氧基硅烷,0.3g的2-羟基-4-正辛氧基二苯甲酮(UV-531)以及1g的平均粒径为5μm左右的球形透明玻璃微珠。
将上述各组分混合均匀后,按照常规方法制备封装胶膜。
(实施例2~实施例5)
各实施例与实施例1基本相同,不同之处在于球形透明材料的种类、粒径和用量,具体见表1。
(对比例1)
本对比例与实施例1基本相同,不同之处在于没有掺入球形透明材料,仍见表1。
(应用例1)
分别将实施例1~实施例5以及对比例1得到的封装胶膜作为上胶膜、同时将对比例1得到的封装胶膜作为下胶膜,与相同的钢化玻璃、电池片、背板按照太阳能电池组件的制备方法制得六块太阳能电池组件,并测量它们的发电功率,结果仍见表1。
表1
实施例1 | 实施例2 | 实施例3 | 实施例4 | 实施例5 | 对比例1 | |
球形透明材料 | 1g、5μm的玻璃微珠 | 0.5g、5μm的玻璃微珠 | 0.1g、5μm的玻璃微珠 | 1g、5μm的PMMA微球 | 1g、5μm的陶瓷微珠 | - |
开路电压(V) | 5.5537 | 5.5691 | 5.642008 | 5.5662 | 8.299372 | 5.635516 |
短路电流(A) | 8.1946 | 8.2016 | 8.303635 | 8.192 | 8.302283 | 7.855639 |
最大功率(W) | 34.4885 | 34.5569 | 34.76768 | 34.4585 | 34.7637 | 33.12015 |
功率因数 | 0.7578 | 0.7568 | 0.745225 | 0.7557 | 0.742306 | 0.74813 |
由表1可以看出:掺入球形透明材料的封装胶膜在一定程度上提升了组件的功率。
(实施例6)
本实施例的太阳能电池组件用封装胶膜的主体材料为EVA(乙烯-醋酸乙烯酯共聚物),它由下述重量份的组分制成:
100g的EVA,0.8g过氧化-2-乙基己基碳酸叔戊酯,0.1g抗氧剂168,0.5gUV-622以及1g的平均粒径为5μm左右的PMMA微球。
将上述各组分混合均匀后,按照常规方法制备封装胶膜。
(实施例7~实施例10)
各实施例与实施例6基本相同,不同之处在于球形透明材料的种类、粒径和用量,具体见表2。
(对比例2)
本对比例与实施例6基本相同,不同之处在于没有掺入球形透明材料,仍见表2。
(应用例2)
分别将实施例6~实施例10以及对比例2得到的封装胶膜作为上胶膜、同时将对比例2得到的封装胶膜作为下胶膜,与相同的钢化玻璃、电池片、背板按照太阳能电池组件的制备方法制得六块太阳能电池组件,并测量它们的发电功率,结果仍见表2。
表2
实施例6 | 实施例7 | 实施例8 | 实施例9 | 实施例10 | 对比例2 | |
球形透明材料 | 1g、5μm 的PMMA微球 | 1g、5μm 的PC微球 | 1g、5μm 的PS微球 | 1g、5μm 的玻璃微珠 | 0.1g、5μm 的PMMA微球 | - |
开路电压(V) | 5.563117 | 5.56888 | 5.641238 | 5.568215 | 5.564935 | 5.631616 |
短路电流(A) | 8.248803 | 8.202847 | 8.302283 | 8.202558 | 8.247557 | 7.8551 |
最大功率(W) | 34.48221 | 34.56691 | 34.7381 | 34.56165 | 34.48772 | 33.08241 |
功率因数 | 0.751426 | 0.756708 | 0.74171 | 0.75671 | 0.751414 | 0.747846 |
由表2可以看出:掺入球形透明材料的封装胶膜在一定程度上提升了组件的功率。
(实施例11)
本实施例的太阳能电池组件用封装胶膜的主体材料为PVB(聚乙烯醇缩丁醛),它由下述重量份的组分制成:
100g的PVB,5g的三甘醇-二-2-乙基己酸酯,5g的EAA(乙烯-丙烯酸共聚物),0.2g的抗氧剂1076,0.2g的抗氧剂1010,0.3g的UV-770以及0.5g的平均粒径为20μm左右的球形透明玻璃微珠。
将上述各组分混合均匀后,按照常规方法制备封装胶膜。
(实施例12~实施例15)
各实施例与实施例11基本相同,不同之处在于球形透明材料的种类、粒径和用量,具体见表3。
(对比例3)
本对比例与实施例11基本相同,不同之处在于没有掺入球形透明材料,仍见表3。
(应用例3)
分别将实施例11~实施例15以及对比例3得到的封装胶膜作为上胶膜、同时将对比例3得到的封装胶膜作为下胶膜,与相同的钢化玻璃、电池片、背板按照太阳能电池组件的制备方法制得六块太阳能电池组件,并测量它们的发电功率,结果仍见表3。
表3
实施例11 | 实施例12 | 实施例13 | 实施例14 | 实施例15 | 对比例3 | |
球形透明材料 | 0.5g、20μm的玻璃微珠 | 5g、20μm的玻璃微珠 | 0.05g、20μm的PMMA微球 | 0.5g、10μm的玻璃微珠 | 0.5g、50μm的玻璃微珠 | - |
开路电压(V) | 5.570275 | 5.630178 | 5.566446 | 5.635826 | 5.565386 | 5.634753 |
短路电流(A) | 8.199447 | 34.37959 | 8.193657 | 8.150106 | 8.191306 | 7.85468 |
最大功率(W) | 34.57211 | 34.37959 | 34.46361 | 34.32605 | 34.45411 | 33.12825 |
功率因数 | 0.756946 | 0.749287 | 0.755623 | 0.747314 | 0.755775 | 0.748506 |
由表3可以看出:掺入球形透明材料的封装胶膜在一定程度上提升了组件的功率。
(实施例16)
本实施例的太阳能电池组件用封装胶膜的主体材料为POE和EVA,它由下述重量份的组分制成:
80g的EVA,10g的POE,10g的PE,0.6g的叔丁基过氧化-2-乙基己基碳酸酯,0.5g的乙烯基三甲氧基硅烷以及0.5g的平均粒径为10μm左右的PMMA微球。
将上述各组分混合均匀后,按照常规方法制备封装胶膜。
(实施例17~实施例20)
各实施例与实施例16基本相同,不同之处在于球形透明材料的种类、粒径和用量,具体见表4。
(对比例4)
本对比例与实施例16基本相同,不同之处在于没有掺入球形透明材料,仍见表4。
(应用例4)
分别将实施例16~实施例20以及对比例4得到的封装胶膜作为上胶膜、同时将对比例4得到的封装胶膜作为下胶膜,与相同的钢化玻璃、电池片、背板按照太阳能电池组件的制备方法制得六块太阳能电池组件,并测量它们的发电功率,结果仍见表4。
表4
实施例16 | 实施例17 | 实施例18 | 实施例19 | 实施例20 | 对比例4 | |
球形透明材料 | 0.5g、10μm 的PMMA微球 | 0.1g、10μm 的PMMA微球 | 1.5g、10μm 的PMMA微球 | 0.5g、1μm 的PMMA微球 | 0.5g、10μm 的玻璃微珠 | - |
开路电压(V) | 5.638864 | 5.634298 | 5.553679 | 5.636889 | 5.566723 | 5.640179 |
短路电流(A) | 8.303842 | 8.149177 | 8.194105 | 8.147936 | 8.191132 | 7.857137 |
最大功率(W) | 34.68291 | 34.35025 | 34.47723 | 34.34512 | 34.45774 | 33.14981 |
功率因数 | 0.740704 | 0.748129 | 0.757618 | 0.747787 | 0.755689 | 0.748038 |
由表4可以看出:掺入球形透明材料的封装胶膜在一定程度上提升了组件的功率。
Claims (9)
1.一种太阳能电池组件用封装胶膜,其特征在于:它是通过在制备胶膜的过程中掺入平均粒径为0.1μm~50μm的球形透明材料得到。
2.根据权利要求1所述的太阳能电池组件用封装胶膜,其特征在于:所述的球形透明材料为球形透明高分子微珠、球形透明玻璃微珠、球形透明陶瓷微珠中的至少一种。
3.根据权利要求1所述的太阳能电池组件用封装胶膜,其特征在于:所述的球形透明材料的用量为胶膜总量的0.01wt%~10wt%。
4.根据权利要求2所述的太阳能电池组件用封装胶膜,其特征在于:所述的球形透明材料的用量为胶膜总量的0.01wt%~10wt%。
5.根据权利要求1至4之一所述的太阳能电池组件用封装胶膜,其特征在于:所述胶膜的主体材料为POE、EVA、PVB、TPU、环氧树脂、有机硅中的至少一种。
6.根据权利要求5所述的太阳能电池组件用封装胶膜,其特征在于:所述胶膜的主体材料为POE。
7.根据权利要求5所述的太阳能电池组件用封装胶膜,其特征在于:所述胶膜的主体材料为EVA。
8.根据权利要求5所述的太阳能电池组件用封装胶膜,其特征在于:所述胶膜的主体材料为PVB。
9.根据权利要求5所述的太阳能电池组件用封装胶膜,其特征在于:所述胶膜的主体材料为POE和EVA。
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JP2017502517A (ja) | 2017-01-19 |
EP3076439A1 (en) | 2016-10-05 |
US20160329447A1 (en) | 2016-11-10 |
WO2015113477A1 (zh) | 2015-08-06 |
JP6306714B2 (ja) | 2018-04-04 |
EP3076439A4 (en) | 2016-12-14 |
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