{"id":7394,"date":"2023-06-21T11:41:17","date_gmt":"2023-06-21T03:41:17","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=7394"},"modified":"2023-07-21T09:32:46","modified_gmt":"2023-07-21T01:32:46","slug":"alt1126","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/alt1126\/","title":{"rendered":"What is the main grid line of photovoltaic panels? Main grid line supplier wholesale"},"content":{"rendered":"

Photovoltaic cells<\/a>The electrode of a battery consists of a main grid and a fine grid. The current generated by light is collected by the fine grid, and then collected by the main grid and output to the battery. Without affecting the shading area and series connection process of the battery, increasing the number of main grids of the battery can shorten the path of current transmission to the main grid line. Once the path where the current stays on the fine grid is shortened, the power loss of the battery can be reduced, and the uniformity of the stress distribution of the battery can also be improved, thereby reducing breakage and improving conductivity.<\/p>\n

Multi-grid technology is also known as MBB technology. In 2019, the mainstream technology was 5-busbar battery. Currently, the mainstream technology has shifted to 9-busbar technology. Compared with 5-busbar, 9-busbar reduces the amount of silver paste used by 25% and increases the power by 2-3W. Currently, the share of 9-busbar and above has reached more than 70%, and it is expected to further increase to more than 90% in 2025. The number of grid lines can theoretically be 48 or 52 grids. As the number of grids increases, the current density is balanced and the collection efficiency is improved, but at the same time, the difficulty of welding the welding strip will increase exponentially.<\/p>\n

The performance of traditional solder ribbons can no longer meet the needs of multi-grid technology, so MBB solder ribbons with finer wire diameters have emerged. In the era of Topcn and heterojunction technology, the consumption of silver paste has increased by 20%-30% compared to PERC, so the solder ribbon has been upgraded to SMBB, and its diameter has been reduced to 0.2-0.4 mm.<\/p>\n

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In practice, the maximum grid number of Topcon cells is 18BB. When the heterojunction gridless technology is promoted, the grid number will increase to 24BB. Although the wire diameter of the welding ribbon is reduced, the increase in the number of roots leads to an increase in the overall usage. Currently, the usage of 1GW components is 450 tons, which may remain stable in the future.<\/p>\n

The increased processing difficulty associated with thin wire diameters has raised the competitive threshold of the tape industry. From the beginning of the industrialization of MBB solder tapes, the production difficulty of MBB solder tapes with a wire diameter of 0.35mm was even lower than that of flat solder tapes, and many manufacturers were able to quickly catch up. However, when the wire diameter dropped from 0.35 to 0.3 and then to 0.26, the production difficulty increased significantly.Raytron<\/a>, Ruichuang has become ChinaHigh precision flat wire<\/a>It is one of the leading companies in the production of high-precision flat wire and foil strip rolling products, and one of the companies with the highest production capacity in China's high-precision flat wire and foil strip rolling field.<\/p>","protected":false},"excerpt":{"rendered":"

The electrodes of photovoltaic cells consist of a main grid and a fine grid. The current generated by light is collected by the fine grid, then collected by the main grid and output to the cell. Without affecting the cell [\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":"","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":[253,232],"class_list":["post-7394","post","type-post","status-publish","format-standard","hentry","category-blog","tag-blog","tag-guangfuzujian"],"_links":{"self":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/7394","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=7394"}],"version-history":[{"count":0,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/7394\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/media?parent=7394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/categories?post=7394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/tags?post=7394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}