CN114382233B - 一种光伏tpo防水卷材及其制备方法 - Google Patents
一种光伏tpo防水卷材及其制备方法 Download PDFInfo
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- CN114382233B CN114382233B CN202210052328.2A CN202210052328A CN114382233B CN 114382233 B CN114382233 B CN 114382233B CN 202210052328 A CN202210052328 A CN 202210052328A CN 114382233 B CN114382233 B CN 114382233B
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Abstract
本发明提供了一种光伏TPO防水卷材,为层状结构,自下而上依次包括氟碳膜层、胶粘剂层、TPO防水卷材层、柔性薄膜光伏电池矩阵串层。本发明还公开了一种制备光伏TPO防水卷材的方法,包括以下步骤:(1)氟碳膜层的制备;(2)TPO防水卷材层的制备;(3)氟碳膜层与TPO防水卷材层的复合;(4)合并封装:氟碳膜/TPO防水卷材层与柔性薄膜光伏电池矩阵串层通过热风焊接牢固地结合在一起。本发明的光伏TPO防水卷材安装快捷方便,不需要搭设支架、不影响建筑的美观,一体化施工,整体性好,形成真正的光伏建筑一体化太阳能屋面系统。
Description
技术领域
本发明涉及光伏建筑一体化应用领域和防水卷材技术领域,具体涉及一种光伏TPO防水卷材及其制备方法。
背景技术
根据中国建筑节能协会数据显示,我国建筑全过程能耗占全国能源消费总量的46.5%,我国建筑全过程碳排放总量占全国碳排放总量的51.3%。正是由于建筑全过程巨大的碳排放量,降低建筑碳排放将成为实现“碳达峰、碳中和”目标的重要一环。工业建筑作为建筑物的能耗大户,屋面大部分处于闲置状态,且屋面建筑出屋面的遮挡物少,平整度高,可利用面积大,是屋面分布式光伏电站安装的绝佳场所。通过改变建筑物能源结构,提高清洁能源使用比例,让建筑物实现主动减排。分布式屋面光伏电站提高了建筑物与周围环境的协调性,但同样也对建筑屋面的安全性和可靠性提出了更高的要求。
TPO单层屋面防水卷材具有长久的使用寿命和优异的防水性能等特点,能为工业建筑屋面提供持久安全的保护,也是屋面分布式光伏电站的优选。目前屋面分布式光伏电站(BIPV)主要采取安装晶硅光伏电池板的形式,有三种固定方式:其一是利用自重直接安放在屋面上,优势是安装便捷,缺点是荷载大、金属屋面上无法应用,通常应用于混凝土屋面;其二是通过光伏基座预制件将光伏组件焊接在防水层上,防水层不会被破坏,确保了整体防水效果,但缺点也明显:防水层材料必须是可焊接的TPO防水卷材,尤其是基座在防水层上的抗拉拔力会随着TPO卷材的自然老化而逐渐降低,难易为光伏组件提供足够的抗风揭性能保障;其三是采用固定件或者光伏基座与屋面固定,优点是光伏组件固定牢固,不易被大风掀翻,金属屋面上通常采用这种固定方式,这样必须穿透防水层而导致屋面防水层破坏,屋面发生渗漏风险增大。在屋面上安装分布式光伏电站,无论采用以上哪种固定方式,均存在安装过程非常繁琐的问题,包括隔气层、保温层、防水层铺设、机械固定、光伏基座安装、光伏支架安装和光伏组件等现场安装过程。随着分布式光伏与TPO单层屋面系统相结合的推广越来越多,光伏组件在屋面的安装方式也愈发重要,但以上三种安装方式存在诸多的问题,亟需改善分布式光伏与建筑屋面的结合方式。
发明内容
本发明针对现有的分布式光伏与建筑屋面的结合方式存在的问题,提供了一种光伏TPO防水卷材及其制备方法,以实现以下发明目的:
(1)本发明提供的光伏TPO防水卷材兼有光伏发电和单层屋面防水卷材的功能特点;
(2)本发明提供的光伏TPO防水卷材施工方便,一次施工即可同时完成屋面防水层和光伏组件施工;
(3)本发明提供的光伏TPO防水卷材轻薄、可绕曲变形,能满足非平面屋面的安装;
(4)本发明提供的光伏TPO防水卷材具有优异的耐久性和可靠性。
为解决上述技术问题,本发明采用以下技术方案来实现:
一种光伏TPO防水卷材及其制备方法,所述的光伏TPO防水卷材,为自下而上依次包括氟碳膜层、胶粘剂层、TPO防水卷材层、柔性薄膜光伏电池矩阵串层的多层结构。
所述的氟碳膜层,按重量份计,包括以下组分:100份氟碳树脂、0.2~0.5份抗氧剂;
所述的胶粘剂层为丁基橡胶热熔胶、SBC热熔胶、聚氨酯密封胶粘剂中的一种;
所述的TPO防水卷材层,按重量份计,包括以下组分:100份热塑性聚烯烃树脂、20~30份EVA树脂、10~25份复合阻燃剂、10~20份辅助填料、2~5添加剂;
所述的柔性薄膜光伏电池矩阵串层为复合为一体的光伏封装组件,厚度为2~3mm,单位面积重量为1.8~2.8kg/m2,其自下而上依次包括EVA胶膜层、多个柔性薄膜光伏电池和正面防护封装层,具体为多个柔性薄膜光伏电池全部复合在EVA胶膜层上,各光伏电池之间电性连接,正面防护封装层贴覆在多个柔性薄膜光伏电池上并能与所述的TPO防水卷材层密封粘接。
优选的,所述氟碳树脂为PVDF树脂、ETFE树脂中的一种。
优选的,所述抗氧剂为1010、168、1076、225中的一种或两种以上的混合物;
优选的,所述丁基橡胶热熔胶、SBC热熔胶、聚氨酯密封胶粘剂为建筑材料领域公知的材料。
优选的,所述热塑性聚烯烃树脂为HifaxTM CA 7800 A热塑性聚烯烃聚合型树脂,密度0.88g/cm3,熔化温度161℃。
优选的,所述EVA树脂的VA含量为5~25%,进一步优选为V5110J、K3212、H2181、7350M、UE630、Evaflex 450中的一种。
优选的,所述复合阻燃剂由氢氧化镁、十溴二苯乙烷、三氧化二锑组成。
优选的,所述辅助填料为重质碳酸钙、轻质碳酸钙、硅灰石粉中的一种或两种以上的混合物。
优选的,所述TPO防水卷材层的添加剂为抗氧剂、光稳定剂、润滑剂、钛白粉四种物质的混合物,其中所述抗氧剂为1010、168、1076、225中的一种或两种以上的混合物;所述光稳定剂为770、622、765、2020中的一种或两种以上的混合物;所述润滑剂为硬脂酸、硬脂酸钙、聚乙烯蜡中的一种或两种以上的混合物;所述钛白粉为699、996、200、902、960、900中的一种或两种以上的混合物。
优选的,所述柔性薄膜光伏电池为碲化镉(CdTe)太阳能电池、铜铟镓硒(CIGS)太阳能电池、硅基薄膜太阳能电池(OPV)、砷化镓薄膜太阳能电池(GaAs)、染料敏化太阳能电池或钙钛矿太阳能电池,进一步优选CdTe或CIGS太阳能电池,CdTe太阳能电池的转化率不低于18.0%,CIGS太阳能电池的转化率不低于16.0%。相比晶硅光伏组件,柔性薄膜光伏电池组件有诸多特点:组件轻薄,对屋面的荷载能力要求低,柔韧性好、可弯曲,适合于各种特殊异型表面,弱光、散射光、漫射光吸收能力强,铺装简便易行、安装和运输成本低。
所述的柔性薄膜光伏电池的前后之间设有间隔距,距离大小为150~200mm。
进一步地,所述的柔性薄膜光伏电池矩阵串层通过接线盒与外部电连接,所述接线盒位于所述正面防护封装层,或所述接线盒嵌装在所述TPO防水卷材层内。
一种制备光伏TPO防水卷材的方法,包括如下步骤:
S1:氟碳膜层的制备:将氟碳树脂和抗氧剂分别通过失重式计量上料系统,加入到双螺杆挤出机中,控制挤出机工作温度为300℃~350℃,经螺杆挤出充分塑化,得到熔融的含氟聚合物;将所得熔融的含氟聚合物经过流延模头,通过流延模头挤出得到熔膜;将熔膜冷却到低于其熔点的温度下,在流延辊和冷却辊上冷却定型,并形成厚度为0.03~0.2mm、宽幅为1.0~2.0m的氟碳薄膜;
S2:TPO防水卷材层的制备:将热塑性聚烯烃树脂、EVA树脂、复合阻燃剂、辅助填料、添加剂分别通过失重式计量上料系统,加入到双螺杆挤出机中,控制挤出机工作温度为190℃~220℃,经熔融塑化、挤出成型,或模口流延出的片材与聚酯网格布在五辊压光机上完成复合,再经过压光及牵引定型,得到TPO防水卷材层,厚度为1.2~2.0mm、宽幅为1.0~2.0m。
S3:氟碳膜层与TPO防水卷材层的复合:通过胶粘剂涂覆生产线,采用单螺杆挤出机、压敏胶涂布机或喷涂机将丁基橡胶热熔胶、SBC热熔胶、或聚氨酯密封胶粘剂涂覆到TPO防水卷材层上,胶粘剂用量为50~500g/m2,长边一侧预留120~150mm不涂胶粘剂,再在胶层上方覆盖氟碳膜,且氟碳膜宽度应与胶粘剂宽度一致,最后经过压辊辊压复合、收卷得到氟碳膜/TPO防水卷材层。
S4:合并封装:将氟碳膜/TPO防水卷材层与柔性薄膜光伏电池矩阵串层进行热风焊接。通过热吹风加热装置为热风焊接提供热源,热风温度为200~300℃,在热风条件下,氟碳膜/TPO防水卷材层中未涂覆胶粘剂的TPO表面与柔性薄膜光伏电池矩阵串层经辊筒压合机复合,使二者紧密结合在一起,长边两侧各预留120~200mm不复合光伏电池矩阵串层,用于卷材间长边的搭接、以及光伏电池的接线盒排线;再沿着电池矩阵的间隔距裁切成长度为5~20m、宽度为1.0~2.0m不等的集成的光伏TPO防水卷材,优选长度规格为5m、10m、15m和20m、宽度为2.0m。
进一步地,本发明提供的光伏TPO防水卷材的施工工艺:在光伏防水卷材屋面施工时,采用无穿孔机械固定技术,将无穿孔垫片机械固定在轻钢结构屋面或者混凝土屋面基面上,无穿孔垫片上附着与TPO层焊接的特殊涂层,利用电感焊接技术将光伏TPO防水卷材焊接于无穿孔垫片上;光伏TPO防水卷材的搭接是由热风焊接形成连续整体的防水层,其中短边采用对接焊接的方式,即采用与本发明的光伏TPO防水卷材的TPO卷材层同质的均质型TPO对接条(宽度150~200mm,厚度1.2mm),焊接于光伏卷材的对接缝上。
本发明的光伏TPO防水卷材,有益效果在于,
①本发明的光伏TPO防水卷材,将氟碳膜引入到光伏TPO防水卷材中,可充分利用氟碳膜的特性,使TPO防水卷材层具有优异的耐候性、耐腐蚀性,较好的绝缘性,赋予了TPO防水卷材层更长的使用寿命,保证了光伏防水卷材屋面的安全性和可靠性。
②本发明的光伏TPO防水卷材,采用耐温性更高的HifaxTM CA 7800 A,其微卡软化温度为85℃、熔化温度为161℃,要明显高于现有技术的TPO防水卷材常用的TPO树脂牌号,如HifaxTM CA 10A、VERSIFYTM 2300等,使光伏TPO防水卷材的TPO卷材层具有更好的耐高温性能,保证了夏季高温天气下,TPO卷材层具有较好的刚度和尺寸稳定性。
③本发明的光伏TPO防水卷材,引入了适量的EVA树脂,旨在提升TPO防水卷材层与柔性薄膜光伏电池矩阵串层的焊接强度和拓宽焊接窗口,使得二者复合变得更容易,赋予二者更高的复合强度。
本发明提供的光伏TPO防水卷材与现有技术不同之处在于本发明集成了光伏发电和单层屋面防水功能于一体,在屋面防水施工铺贴防水卷材过程中,实现光伏建材与屋面防水工程同步设计、同步施工、同步验收、同步维护;这种光伏组件在屋面的安装方式完全不同于前述的现有技术的固定方式,同时与在防水屋面现场或工厂中将光伏薄膜组件通过胶粘剂与防水卷材(TPO、EPDM、改性沥青类防水卷材)相粘接而形成光伏防水卷材屋面的相关技术也明显不同;本发明的光伏TPO防水卷材使用于金属屋面、也可应用于混凝土屋面,设计不同长度规格的卷材可根据实际屋面大小做到灵活拼接。本发明的光伏TPO防水卷材安装快捷方便,不需要搭设支架、不影响建筑的美观,一体化施工,整体性好,形成真正的光伏建筑一体化太阳能屋面系统。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,对于本领域普通技术人员而言,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本发明光伏TPO防水卷材的结构示意图。
图中,1-氟碳膜层,2-胶粘剂层,3-TPO防水卷材层,4-柔性薄膜光伏电池矩阵串层。
具体实施方式
为了使本技术领域的人员更好地理解本发明中的技术方案,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都应当属于本发明保护的范围。
实施例1
一种光伏TPO防水卷材,所述的光伏TPO防水卷材自下而上依次包括氟碳膜层1、胶粘剂层2、TPO防水卷材层3、柔性薄膜光伏电池矩阵串层4,其中柔性薄膜光伏电池矩阵串层为复合为一体的光伏封装组件,其自下而上依次包括EVA胶膜层、多个柔性薄膜光伏电池和正面防护封装层,具体为多个柔性薄膜光伏电池全部复合在EVA胶膜层上,各光伏电池之间电性连接,正面防护封装层贴覆在多个柔性薄膜光伏电池上并能与所述的TPO防水卷材层密封粘接;
本发明的光伏TPO防水卷材的制备方法包括如下步骤:
S1:氟碳膜层的制备:将100份PVDF树脂和0.5份抗氧剂1010分别通过失重式计量上料系统,加入到双螺杆挤出机中,控制挤出机工作温度为300℃~350℃,经螺杆挤出充分塑化,得到熔融的含氟聚合物;将所得熔融的含氟聚合物经过流延模头,通过流延模头挤出得到熔膜;将熔膜冷却到低于其熔点的温度下,在流延辊和冷却辊上冷却定型,并形成厚度为0.1mm、宽幅为1.88m的氟碳薄膜;
S2:TPO防水卷材层的制备:将100份热塑性聚烯烃树脂HifaxTM CA 7800 A、30份EVA树脂K3212、12份复合阻燃剂(包括5份氢氧化镁、5份十溴二苯乙烷、2份三氧化二锑)、10份轻质碳酸钙、3.5份添加剂(包括0.5份抗氧剂1010、0.5份光稳定剂770、0.5份硬脂酸、2份钛白粉996)分别通过失重式计量上料系统,加入到双螺杆挤出机中,控制挤出机工作温度为190℃~220℃,经熔融塑化、在模口流延出的片材与聚酯网格布在五辊压光机上完成复合,再经过压光及牵引定型,得到TPO防水卷材层,厚度为1.5mm、宽幅为2.0m;
S3:氟碳膜层与TPO防水卷材层的复合:通过胶粘剂涂覆生产线,采用单螺杆挤出机,将丁基橡胶热熔胶涂覆到TPO防水卷材层上,胶粘剂用量为50g/m2,长边一侧预留120mm不涂胶粘剂,再在胶层上方覆盖氟碳膜,最后经过压辊辊压复合、收卷得到氟碳膜/TPO防水卷材层。
S4:合并封装:将氟碳膜/TPO防水卷材层与柔性碲化镉(CdTe)薄膜光伏电池矩阵串层进行热风焊接。柔性CdTe薄膜光伏电池的前后之间设有距离大小为200mm的间隔距。通过热吹风加热装置为热风焊接提供热源,热风温度为250℃,在热风条件下,氟碳膜/TPO防水卷材层中未涂覆胶粘剂的TPO表面与柔性薄膜光伏电池矩阵串层经辊筒压合机复合,使二者紧密结合在一起,长边两侧各预留150mm不复合光伏电池矩阵串层,用于卷材间长边的搭接、以及光伏电池的接线盒排线;再沿着电池矩阵的间隔距裁切成长度为10m、宽度为2.0m的卷材,即得光伏TPO防水卷材。
本光伏TPO防水卷材的施工工艺:在光伏防水卷材屋面施工时,采用无穿孔机械固定技术,将无穿孔垫片机械固定在轻钢结构屋面或者混凝土屋面基面上,无穿孔垫片上附着与TPO层焊接的特殊涂层,利用电感焊接技术将光伏TPO防水卷材焊接于无穿孔垫片上;光伏TPO防水卷材的搭接是由热风焊接形成连续整体的防水层,其中短边采用对接焊接的方式,即采用与本发明的光伏TPO防水卷材的TPO卷材层同质的150mm宽度均质型TPO对接条,焊接于光伏卷材的对接缝上。柔性CdTe薄膜光伏电池矩阵串层通过接线盒与外部电连接,接线盒位于正面防护封装层。
实施例2
一种光伏TPO防水卷材,所述氟碳膜层1的厚度为0.2mm;所述光伏TPO防水卷材的TPO防水卷材层3的厚度为1.5mm;所述柔性薄膜光伏电池为CIGS薄膜太阳能电池;所述光伏TPO防水卷材的长度为20m,其他同实施例1。
实施例3
一种光伏TPO防水卷材,所述氟碳膜层1的厚度为0.2mm;所述胶粘剂层2为聚氨酯密封胶粘剂,胶粘剂用量为300g/m2;所述光伏TPO防水卷材的TPO防水卷材层3的厚度为2.0mm;所述柔性薄膜光伏电池为砷化镓薄膜太阳能电池;所述光伏TPO防水卷材的长度为5m,其他同实施例1。
实施例4
一种光伏TPO防水卷材,所述的光伏TPO防水卷材自下而上依次包括氟碳膜层1、胶粘剂层2、TPO防水卷材层3、柔性薄膜光伏电池矩阵串层4;所述光伏TPO防水卷材的长度为15m,宽度为1m;本发明的光伏TPO防水卷材的制备方法包括如下步骤:
S1:氟碳膜层的制备:所述氟碳膜层包括如下重量份的原料:100份ETFE树脂和0.5份抗氧剂(0.3份1010、0.2份168);所述氟碳膜层的厚度为0.05mm、宽幅为0.85m的氟碳薄膜;所述氟碳膜层的制备方法同实施例1;
S2:TPO防水卷材层的制备:所述TPO防水卷材层包括如下重量份的原料:100份热塑性聚烯烃树脂HifaxTM CA7800 A、25份EVA树脂H2181、20份复合阻燃剂(包括10份氢氧化镁、5份十溴二苯乙烷、5份三氧化二锑)、10份重质碳酸钙、5份添加剂(包括0.5份抗氧剂225、0.5份光稳定剂622、1份硬脂酸、3份钛白粉902);所述TPO防水卷材层的厚度为1.2mm、宽幅为1.0m;所述TPO防水卷材层的制备方法同实施例1;
S3:氟碳膜层与TPO防水卷材层的复合:通过胶粘剂涂覆生产线,采用压敏胶涂布机,将SBC热熔胶涂覆到TPO防水卷材层上,胶粘剂用量为200g/m2,长边一侧预留150mm不涂胶粘剂,再在胶层上方覆盖氟碳膜,最后经过压辊辊压复合、收卷得到氟碳膜/TPO防水卷材层。
S4:合并封装:柔性CdTe薄膜光伏电池的前后之间的间隔距为150mm;长边两侧各预留200mm不复合光伏电池矩阵串层;其他同实施例1。
对实施例1~4制备所得的光伏TPO防水卷材进行性能测试,得到如表1所示的结果:
表1各实施例的性能测试结果
从表1的测试结果可以看到,本发明制备所得的光伏TPO防水卷材的TPO防水卷材层与柔性薄膜光伏电池矩阵串层具备良好的复合强度;室外暴露性能、耐紫外线辐照性能优异,符合行业标准JG/T 535-2017《建筑用柔性薄膜光伏组件》的要求;接缝剥离强度符合国标GB 27789-2011《热塑性聚烯烃(TPO)防水卷材》的要求,光伏卷材之间的搭接缝牢固,整体防水可靠,且安装快捷方便,一体化施工,整体性好,形成真正的光伏建筑一体化太阳能屋面系统,具有广阔的应用前景。
尽管通过参考附图并结合优选实施例的方式对本发明进行了详细描述,但本发明并不限于此。在不脱离本发明的精神和实质的前提下,本领域普通技术人员可以对本发明的实施例进行各种等效的修改或替换,而这些修改或替换都应在本发明的涵盖范围内/任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求所述的保护范围为准。
Claims (7)
1.一种光伏TPO防水卷材的制备方法,其特征在于,所述卷材自下而上依次包括氟碳膜层、胶粘剂层、TPO防水卷材层、柔性薄膜光伏电池矩阵串层;
所述制备方法包括以下步骤:
S1:氟碳膜层的制备;
所述氟碳膜层包括如下重量份的原料:100份氟碳树脂、0.2~0.5份抗氧剂;
S2:TPO防水卷材层的制备;
所述TPO防水卷材层包括如下重量份的原料:100份热塑性聚烯烃树脂、20~30份EVA树脂、10~25份复合阻燃剂、10~20份辅助填料、2~5添加剂;
S3:氟碳膜层与TPO防水卷材层的复合;
所述胶粘剂层为丁基橡胶热熔胶、SBC热熔胶、聚氨酯密封胶粘剂中的一种;
S4:合并封装:氟碳膜/TPO防水卷材层与柔性薄膜光伏电池矩阵串层通过热风焊接牢固地结合在一起,所述柔性薄膜光伏电池矩阵串层为复合为一体的光伏封装组件,其自下而上依次包括EVA胶膜层、多个柔性薄膜光伏电池和正面防护封装层,具体为多个柔性薄膜光伏电池全部复合在EVA胶膜层上,各光伏电池之间电性连接,正面防护封装层贴覆在多个柔性薄膜光伏电池上并能与所述的TPO防水卷材层密封粘接。
2.如权利要求1所述的制备方法,其特征在于,所述光伏TPO防水卷材的幅宽为1.0~2.0m,长度为5~20m,所述氟碳膜层的厚度为0.03~0.2mm,所述胶粘剂层的胶粘剂用量为50~500g/m2,所述TPO防水卷材层的厚度为1.2~2.0mm,所述柔性薄膜光伏电池矩阵串层的厚度为2~3mm,单位面积重量为1.8~2.8kg/m2。
3.如权利要求1所述的制备方法,其特征在于,所述氟碳树脂为PVDF树脂、ETFE树脂中的一种。
4.如权利要求1所述的制备方法,其特征在于,所述热塑性聚烯烃树脂为HifaxTM CA7800A热塑性聚烯烃聚合型树脂,密度0.88g/cm3,熔化温度161℃;
所述EVA树脂的VA含量为5~25%;
所述复合阻燃剂由氢氧化镁、十溴二苯乙烷、三氧化二锑组成;
所述辅助填料为重质碳酸钙、轻质碳酸钙、硅灰石粉中的一种或两种以上的混合物;
所述添加剂为抗氧剂、光稳定剂、润滑剂、钛白粉四种物质的混合物,其中所述抗氧剂为1010、168、1076、225中的一种或两种以上的混合物;所述光稳定剂为770、622、765、2020中的一种或两种以上的混合物;所述润滑剂为硬脂酸、硬脂酸钙、聚乙烯蜡中的一种或两种以上的混合物;所述钛白粉为699、996、200、902、960、900中的一种或两种以上的混合物。
5.如权利要求1所述的制备方法,其特征在于,所述柔性薄膜光伏电池为碲化镉(CdTe)太阳能电池、铜铟镓硒(CIGS)太阳能电池、硅基薄膜太阳能电池(OPV)、砷化镓薄膜太阳能电池(GaAs)、染料敏化太阳能电池或钙钛矿太阳能电池,其中CdTe太阳能电池的转化率不低于18.0%,CIGS太阳能电池的转化率不低于16.0%。
6.如权利要求1所述的制备方法,其特征在于,所述的柔性薄膜光伏电池的前后之间设有间隔距,距离大小为150mm~200mm。
7.如权利要求1所述的制备方法,其特征在于,所述的柔性薄膜光伏电池矩阵串层通过接线盒与外部电连接,所述接线盒位于所述正面防护封装层,或所述接线盒嵌装在所述TPO防水卷材层内。
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