{"id":30625,"date":"2024-12-30T15:50:24","date_gmt":"2024-12-30T07:50:24","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=30625"},"modified":"2024-12-30T15:50:24","modified_gmt":"2024-12-30T07:50:24","slug":"ele7000","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/ele7000\/","title":{"rendered":"How to choose high quality photovoltaic welding ribbon?"},"content":{"rendered":"<p>Choose high quality<a href=\"https:\/\/www.ray-tron.com\/en\/pvribbon\/\" data-internallinksmanager029f6b8e52c=\"43\" title=\"Photovoltaic welding ribbon\">Photovoltaic welding ribbon<\/a>It is necessary to comprehensively consider multiple factors such as the material, electrical properties, process technology, reliability, etc. of the soldering ribbon. The following is a detailed selection guide:<\/p>\n<hr \/>\n<h3><strong>1. Material of soldering ribbon<\/strong><\/h3>\n<ul>\n<li><strong>Substrate<\/strong>:\n<ul>\n<li>Oxygen-free copper with high conductivity (99.99% purity or above) is usually selected.<\/li>\n<li>Oxygen-free copper has excellent electrical conductivity and strong oxidation resistance, which can ensure long-term stability.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Coating material<\/strong>:\n<ul>\n<li>Commonly used plating layers are tin or silver-tin alloys.<\/li>\n<li>Although silver-tin alloy solder strips are expensive, they have better conductivity and heat resistance and are suitable for high-performance<a href=\"https:\/\/www.ray-tron.com\/en\/\" data-internallinksmanager029f6b8e52c=\"14\" title=\"Photovoltaic modules\">Photovoltaic modules<\/a>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>2. Electrical properties<\/strong><\/h3>\n<ul>\n<li><strong>Low resistivity<\/strong>:\n<ul>\n<li>The resistivity of the soldering ribbon should be as low as possible to reduce transmission losses.<\/li>\n<li>Welding strips made of high-quality materials will improve the efficiency of current transmission, thereby increasing the power output of photovoltaic modules.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Specifications of soldering tape<\/strong>:\n<ul>\n<li><strong>Thickness and width<\/strong>Directly affects the resistance value.<\/li>\n<li>The width and thickness need to be<strong>Lower resistance<\/strong>and<strong>Avoid excessive shading<\/strong>Find a balance between.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>3. Coating quality<\/strong><\/h3>\n<ul>\n<li><strong>Coating thickness<\/strong>:\n<ul>\n<li>The tin plating layer is uniform and of moderate thickness (common range is 15~40\u03bcm), which can ensure good welding effect.<\/li>\n<li>A coating that is too thin will result in a weak weld, while a coating that is too thick will increase costs and may result in excessive weld residue.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Coating uniformity<\/strong>:\n<ul>\n<li>The plating layer should have no obvious peeling, bubbles or impurities, so as not to affect the welding quality and the conductive properties of the welding strip.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Weldability<\/strong>:\n<ul>\n<li>The surface should have good wettability, easy soldering and strong solder joints.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>4. Ductility and flexibility<\/strong><\/h3>\n<ul>\n<li><strong>High ductility<\/strong>:\n<ul>\n<li>The soldering tape needs to have a certain degree of flexibility to adapt to the thermal expansion and contraction of the photovoltaic module during temperature changes to avoid solder joint breakage.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Low yield strength<\/strong>:\n<ul>\n<li>Solder ribbons with low yield strength are easier to process and are less likely to damage the battery cells.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<figure id=\"attachment_30626\" aria-describedby=\"caption-attachment-30626\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-30626 lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/www.ray-tron.com\/wp-content\/uploads\/2024\/12\/202412301549555.jpg\" alt=\"\" width=\"500\" height=\"666\" \/><figcaption id=\"caption-attachment-30626\" class=\"wp-caption-text\"><noscript><img decoding=\"async\" class=\"size-full wp-image-30626 lazyload\" src=\"https:\/\/www.ray-tron.com\/wp-content\/uploads\/2024\/12\/202412301549555.jpg\" alt=\"\" width=\"500\" height=\"666\" srcset=\"https:\/\/www.ray-tron.com\/wp-content\/uploads\/2024\/12\/202412301549555.jpg 500w, https:\/\/www.ray-tron.com\/wp-content\/uploads\/2024\/12\/202412301549555-225x300.jpg 225w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/noscript> Photovoltaic welding ribbon packaging<\/figcaption><\/figure>\n<hr \/>\n<h3><strong>5. Dimensions<\/strong><\/h3>\n<ul>\n<li><strong>Specifications<\/strong>:\n<ul>\n<li>The width and thickness of the interconnection ribbon and the busbar ribbon should be selected according to the component design requirements.<\/li>\n<li>Common specifications include: 0.2mm\u00d71.5mm, 0.3mm\u00d72.0mm, etc.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Accuracy requirements<\/strong>:\n<ul>\n<li>The width and thickness of the solder ribbon need to meet a strict tolerance range, typically \u00b10.01mm, to ensure production consistency and reliability.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>6. Reliability test<\/strong><\/h3>\n<ul>\n<li><strong>Long-term durability<\/strong>:\n<ul>\n<li>Ensure that the welding ribbon can withstand the outdoor use of photovoltaic modules for more than 25 years and has strong corrosion resistance and oxidation resistance.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Temperature Cycle Test<\/strong>:\n<ul>\n<li>The soldering tape should be able to adapt to the multiple thermal expansion and contraction of the components due to the temperature difference between day and night.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Peel strength test<\/strong>:\n<ul>\n<li>Test the peel strength of the solder joint to ensure that there is sufficient bonding strength between the solder ribbon and the battery cell.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>7. Manufacturing process and quality control<\/strong><\/h3>\n<ul>\n<li><strong>Manufacturing precision<\/strong>:\n<ul>\n<li>The surface of the soldering ribbon should be free of burrs, bubbles or cracks, and the curling degree of the soldering ribbon should be controlled within a reasonable range to ensure smooth operation in automated production.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tinning process<\/strong>:\n<ul>\n<li>Use hot-dip tinning or electroplating techniques to ensure an even tin layer.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Production standards<\/strong>:\n<ul>\n<li>Whether a manufacturer complies with international quality standards (such as ISO9001, TUV and other certifications) can reflect its product quality assurance capabilities.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>8. Choose reliable suppliers<\/strong><\/h3>\n<ul>\n<li><strong>Industry reputation<\/strong>:\n<ul>\n<li>Choose a manufacturer with rich experience and a good reputation in the industry.<\/li>\n<li><a href=\"https:\/\/www.ray-tron.com\/en\/\" data-internallinksmanager029f6b8e52c=\"19\" title=\"Ruichuang 2\">Raytron<\/a>Well-known companies such as , have good performance in R&amp;D and quality control and are worth considering.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Technical Support<\/strong>:\n<ul>\n<li>Whether the supplier can provide customized services and adjust specifications, performance indicators, etc. according to needs.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Supply Capacity<\/strong>:\n<ul>\n<li>Ensure that suppliers can meet the needs of large-scale production and provide stable supply capabilities.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3><strong>9. Field investigation and sample testing<\/strong><\/h3>\n<ul>\n<li><strong>Field Trip<\/strong>:\n<ul>\n<li>Understand the supplier&#039;s production equipment and process technology, and whether it has advanced automated production lines and strict quality inspection systems.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Sample testing<\/strong>:\n<ul>\n<li>The soldering ribbons are subjected to actual usage tests, including solderability, conductivity, and long-term reliability, to ensure that their performance meets the requirements.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h3>Summarize<\/h3>\n<p>Choosing high-quality photovoltaic welding ribbons requires comprehensive consideration of the welding ribbons.<strong>Material, electrical properties, coating quality, ductility, specification accuracy<\/strong>High-quality solder strips can not only improve the power generation efficiency of components, but also reduce the scrap rate in production, and improve product reliability and market competitiveness.<\/p>","protected":false},"excerpt":{"rendered":"<p>Choosing high-quality photovoltaic ribbons requires comprehensive consideration of the material, electrical properties, process technology, reliability and other factors of the ribbon. The following is a detailed selection guide: 1. [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[19],"tags":[227],"class_list":["post-30625","post","type-post","status-publish","format-standard","hentry","category-blog","tag-guangfuhandai"],"_links":{"self":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/30625","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/comments?post=30625"}],"version-history":[{"count":0,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/30625\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/media?parent=30625"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/categories?post=30625"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/tags?post=30625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}