{"id":33491,"date":"2025-03-14T17:19:20","date_gmt":"2025-03-14T09:19:20","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=33491"},"modified":"2025-03-14T17:19:26","modified_gmt":"2025-03-14T09:19:26","slug":"effect-of-tinning-thickness-of-photovoltaic-ribbon-on-photovoltaic-modules","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/effect-of-tinning-thickness-of-photovoltaic-ribbon-on-photovoltaic-modules\/","title":{"rendered":"Effect of tinning thickness of photovoltaic ribbon on photovoltaic modules"},"content":{"rendered":"

Photovoltaic welding ribbon<\/a>Tin plating thicknessPhotovoltaic modules<\/a>The performance and reliability of the product have a crucial impact. Specifically, the change in the thickness of the tin plating layer will affect the following aspects:<\/p>\n\n\n\n

    \n
  1. Welding performance<\/li>\n<\/ol>\n\n\n\n

    Thicker tin plating:<\/p>\n\n\n\n

    Improve soldering wettability, making it easier for solder to form a good metal bond between the solder ribbon and the battery cell.<\/p>\n\n\n\n

    Reduce the risk of false welding and fake welding, and improve welding strength.<\/p>\n\n\n\n

    Suitable for low temperature welding process, especially for new battery cells such as HJT and TOPCon.<\/p>\n\n\n\n

    Tin plating is thinner:<\/p>\n\n\n\n

    The difficulty of welding increases, and it is easy for the solder joints to be loose or desoldering to occur.<\/p>\n\n\n\n

    When welding at high speed using an automated stringer, insufficient tin layer may result in uneven welding.<\/p>\n\n\n\n

      \n
    1. Resistivity<\/li>\n<\/ol>\n\n\n\n

      Thicker tin plating:<\/p>\n\n\n\n

      The resistivity of tin is higher than that of copper. Too thick a coating will increase the overall resistance of the solder strip, reduce the current transmission efficiency, and affect the power output of the component.<\/p>\n\n\n\n

      Tin plating is thinner:<\/p>\n\n\n\n

      Lower resistance and stronger conductivity help reduce the series resistance of the component and improve output efficiency.<\/p>\n\n\n\n

        \n
      1. Reliability and corrosion resistance<\/li>\n<\/ol>\n\n\n\n

        Thicker tin plating:<\/p>\n\n\n\n

        The oxidation resistance and corrosion resistance of the welding strip are enhanced, especially in high temperature and high humidity environments or outdoor photovoltaic power stations.<\/p>\n\n\n\n

        Prevent copper substrate from corrosion and extend the service life of photovoltaic modules.<\/p>\n\n\n\n

        Tin plating is thinner:<\/p>\n\n\n\n

        It is easily oxidized or corroded, resulting in increased resistance and affecting the long-term stability of photovoltaic modules.<\/p>\n\n\n\n

          \n
        1. Welding uniformity<\/li>\n<\/ol>\n\n\n\n

          Tin plating is too thick:<\/p>\n\n\n\n

          This will cause the tin to be too fluid during welding, resulting in overflow and affecting the surface flatness of the solder strip.<\/p>\n\n\n\n

          This may cause uneven solder joints, affecting the stress on the battery cell and current transmission.<\/p>\n\n\n\n

          Tin plating is too thin:<\/p>\n\n\n\n

          Failure to form sufficient solder will result in poor soldering and cold soldering, affecting the soldering strength and reliability of the battery cell.<\/p>\n\n\n\n

            \n
          1. Optical reflection effect<\/li>\n<\/ol>\n\n\n\n

            forReflective welding tape<\/a>:<\/p>\n\n\n\n

            The uniform and appropriate thickness of the tin plating layer can improve the reflectivity of the solder strip surface, increase the secondary reflection of light, and thus improve the light absorption efficiency of the battery cell.<\/p>\n\n\n\n

            Too thick a tin plating layer will affect the smoothness of the solder strip surface and reduce the reflective effect.<\/p>\n\n\n\n

              \n
            1. Cost Control<\/li>\n<\/ol>\n\n\n\n

              Thicker tin plating:<\/p>\n\n\n\n

              Increased material costs, especially in large-scale production in the photovoltaic industry, where even a small change in the thickness of the tin coating will have a significant impact on costs.<\/p>\n\n\n\n

              Tin plating is thinner:<\/p>\n\n\n\n

              Although material costs can be saved, welding quality and component life may be sacrificed, resulting in increased maintenance costs in the future.<\/p>\n\n\n\n

              Tin plating thickness<\/th>advantage<\/th>shortcoming<\/th><\/tr><\/thead>
              Thicker tin plating<\/td>Good welding effect, strong anti-oxidation and long service life<\/td>Increased resistance, high cost, easy to overflow soldering<\/td><\/tr>
              Thin tin coating<\/td>Strong conductivity and low cost<\/td>Easy to have cold solder joints, poor corrosion resistance<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
              \n\n\n\n

              <\/h2>","protected":false},"excerpt":{"rendered":"

              The tin plating thickness of photovoltaic ribbons has a crucial impact on the performance and reliability of photovoltaic modules. Specifically, changes in the tin plating thickness will affect the following aspects: [\u2026]<\/p>","protected":false},"author":1,"featured_media":9170,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","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":[],"class_list":["post-33491","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/33491","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=33491"}],"version-history":[{"count":0,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/33491\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/media\/9170"}],"wp:attachment":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/media?parent=33491"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/categories?post=33491"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/tags?post=33491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}