{"id":30698,"date":"2025-01-14T13:51:58","date_gmt":"2025-01-14T05:51:58","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=30698"},"modified":"2025-01-14T13:51:58","modified_gmt":"2025-01-14T05:51:58","slug":"ele7041","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/ele7041\/","title":{"rendered":"Production process characteristics of BC cell photovoltaic ribbon"},"content":{"rendered":"<p data-sourcepos=\"3:1-3:53\"><a href=\"https:\/\/www.ray-tron.com\/en\/bcdianchi\/\" data-internallinksmanager029f6b8e52c=\"97\" title=\"bc battery\">BC Cell Photovoltaic Ribbon<\/a>Compared with traditional solder strips, the production process has some unique characteristics because it needs to adapt to the special back contact structure of BC batteries.<\/p>\n<h3 data-sourcepos=\"5:1-5:18\">1. <strong>Material selection and processing<\/strong><\/h3>\n<ul data-sourcepos=\"6:1-10:0\">\n<li data-sourcepos=\"6:1-6:55\"><strong>Highly conductive materials:<\/strong> In order to meet the high current density requirements of BC batteries, the welding ribbon material is usually made of copper alloy or silver alloy with high conductivity.<\/li>\n<li data-sourcepos=\"7:1-7:53\"><strong>High temperature resistance:<\/strong> During the welding process, the welding strip will be exposed to high temperature, so the material is required to have good high temperature resistance to prevent oxidation and deformation.<\/li>\n<li data-sourcepos=\"8:1-8:42\"><strong>Flexibility:<\/strong> The ribbon needs to be flexible enough to conform to the curved and irregular shapes of the BC cell.<\/li>\n<li data-sourcepos=\"9:1-10:0\"><strong>Surface treatment:<\/strong> The surface of the soldering ribbon is usually specially treated to improve the soldering quality and reliability, such as silver plating, tin plating, etc.<\/li>\n<\/ul>\n<h3 data-sourcepos=\"11:1-11:15\">2. <strong>Welding ribbon design<\/strong><\/h3>\n<ul data-sourcepos=\"12:1-15:0\">\n<li data-sourcepos=\"12:1-12:42\"><strong>Thinning:<\/strong> In order to reduce the obstruction of the light-exposed area on the front of the battery, the wire diameter of the BC battery welding ribbon is usually thinner.<\/li>\n<li data-sourcepos=\"13:1-13:50\"><strong>Special arrangement:<\/strong> The arrangement of the solder ribbon needs to match the metal contacts on the back of the BC cell to ensure a good electrical connection.<\/li>\n<li data-sourcepos=\"14:1-15:0\"><strong>Insulation layer design:<\/strong> In order to prevent short circuits between the soldering ribbons, an insulating layer is usually provided on the surface or inside of the soldering ribbon.<\/li>\n<\/ul>\n<figure id=\"attachment_30600\" aria-describedby=\"caption-attachment-30600\" style=\"width: 500px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-30600 lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/www.ray-tron.com\/wp-content\/uploads\/2024\/12\/20241225170610100.jpg\" alt=\"\" width=\"500\" height=\"666\" \/><figcaption id=\"caption-attachment-30600\" class=\"wp-caption-text\"><noscript><img decoding=\"async\" class=\"size-full wp-image-30600 lazyload\" src=\"https:\/\/www.ray-tron.com\/wp-content\/uploads\/2024\/12\/20241225170610100.jpg\" alt=\"\" width=\"500\" height=\"666\" srcset=\"https:\/\/www.ray-tron.com\/wp-content\/uploads\/2024\/12\/20241225170610100.jpg 500w, https:\/\/www.ray-tron.com\/wp-content\/uploads\/2024\/12\/20241225170610100-225x300.jpg 225w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/noscript> Photovoltaic welding ribbon<\/figcaption><\/figure>\n<h3 data-sourcepos=\"16:1-16:15\">3. <strong>Welding process<\/strong><\/h3>\n<ul data-sourcepos=\"17:1-20:0\">\n<li data-sourcepos=\"17:1-17:48\"><strong>Laser welding:<\/strong> Laser welding has the advantages of high precision and small heat-affected zone, and is one of the main methods for welding BC battery ribbons.<\/li>\n<li data-sourcepos=\"18:1-18:39\"><strong>Ultrasonic welding:<\/strong> Ultrasonic welding can achieve non-melting welding and is suitable for heat-sensitive materials.<\/li>\n<li data-sourcepos=\"19:1-20:0\"><strong>Solder Mask Welding:<\/strong> Solder mask welding is a welding method that combines laser and solder resist to improve welding reliability.<\/li>\n<\/ul>\n<h3 data-sourcepos=\"21:1-21:15\">4. <strong>Quality Control<\/strong><\/h3>\n<ul data-sourcepos=\"22:1-25:0\">\n<li data-sourcepos=\"22:1-22:41\"><strong>Solder joint strength test:<\/strong> Solder joint strength is an important factor affecting component life and requires rigorous testing.<\/li>\n<li data-sourcepos=\"23:1-23:38\"><strong>Resistance test:<\/strong> The resistance value of the solder joint directly affects the electrical performance of the component and needs to be measured accurately.<\/li>\n<li data-sourcepos=\"24:1-25:0\"><strong>Visual inspection:<\/strong> Visual inspection of solder joints can reveal some potential defects.<\/li>\n<\/ul>\n<h3 data-sourcepos=\"26:1-26:21\">Summary of the characteristics of BC cell photovoltaic ribbon production process<\/h3>\n<ul data-sourcepos=\"28:1-31:0\">\n<li data-sourcepos=\"28:1-28:35\"><strong>High precision:<\/strong> Due to the particularity of the BC battery structure, higher precision requirements are placed on the welding strip.<\/li>\n<li data-sourcepos=\"29:1-29:44\"><strong>Diversity:<\/strong> In order to adapt to different types of BC batteries, the materials, structures and welding processes of the welding ribbons are also varied.<\/li>\n<li data-sourcepos=\"30:1-31:0\"><strong>automation:<\/strong> In order to improve production efficiency and reduce costs, the production process of BC battery ribbons is highly automated.<\/li>\n<\/ul>\n<p data-sourcepos=\"32:1-32:47\"><strong>Continuous innovation in the production process of BC cell photovoltaic ribbons to improve<a href=\"https:\/\/www.ray-tron.com\/en\/\" data-internallinksmanager029f6b8e52c=\"15\" title=\"Solar panels\">Solar Cells<\/a>The efficiency and reliability of the components provide strong support.<\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>BC\u7535\u6c60\u5149\u4f0f\u710a\u5e26\u7684\u751f\u4ea7\u5de5\u827a\u76f8\u8f83\u4e8e\u4f20\u7edf\u710a\u5e26\uff0c\u56e0\u5176\u9700\u8981\u9002\u5e94BC\u7535\u6c60\u7279\u6b8a\u7684\u80cc\u9762\u63a5\u89e6\u7ed3\u6784\uff0c\u800c\u5448\u73b0\u51fa\u4e00\u4e9b\u72ec\u7279\u7684\u7279\u70b9\u3002 1 [&hellip;]<\/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":[371],"class_list":["post-30698","post","type-post","status-publish","format-standard","hentry","category-blog","tag-bc"],"_links":{"self":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/30698","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=30698"}],"version-history":[{"count":0,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/30698\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/media?parent=30698"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/categories?post=30698"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/tags?post=30698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}