{"id":6024,"date":"2023-05-25T17:05:24","date_gmt":"2023-05-25T09:05:24","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=6024"},"modified":"2023-07-21T09:45:46","modified_gmt":"2023-07-21T01:45:46","slug":"ele5819","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/ele5819\/","title":{"rendered":"What are the methods for connecting lithium battery tabs?"},"content":{"rendered":"

The tabs need to be installed on lithium batteries, and there are currently four ways to connect them to lithium batteries.<\/p>\n

1. Drill and tap before screwing.<\/p>\n

Advantages: high mechanical connection strength, firm and reliable, low cost.<\/p>\n

Disadvantages: There is a certain risk due to unknown thickness.<\/p>\n

2. After drilling and tapping, use ordinary solder to solder the copper wire. Use aluminum block to test. Steps: Use tin solder wire to fill the hole in the punch hole. Don't forget to fill the copper wire in the middle. Use 1.0 soldering iron to tin the copper wire. The pliers cannot pull down the copper wire. For safety reasons, it is best to have two to three holes for one pole, and then put on the copper tape to make it quite firm.<\/p>\n

Advantages: simple equipment, easy to operate and low cost.<\/p>\n

Disadvantage: Whether the welding is firm needs to be tested.<\/p>\n

3. Use low-temperature welding wire for direct welding, welding materials: M51+M51-F, low-temperature copper-aluminum welding. M51 is the abbreviation of WEWELDING-M51, also known as universal 51. It is a brand produced by R&D Industrial Company in the United States. It is a low-temperature copper-aluminum welding wire containing special rare elements. It was introduced to mainland China by Wei Oding (Tianjin) Welding Technology Co., Ltd. in 2010. It is mainly used to solve the remarkable ability of almost all white metals at low temperatures. White metals include zinc (almost cannot be welded), copper-lead alloy, tin-lead alloy, aluminum and lead, etc. M51 can also weld any of the above metals with any other metals such as copper, brass, steel, stainless steel or bronze. Searching on Ma Yun's home, the price is a bit expensive. A 3-meter-long M51 with a diameter of 1.3 mm costs 25 yuan, and a small bottle of M51-F flux costs 50 yuan.<\/p>\n

Advantages: The introduction says that the equipment is simple and the welding is firm<\/p>\n

Disadvantages: high cost, whether it is firm needs to be tested<\/p>\n

4. Ultrasonic welding<\/p>\n

Soft package lithium ion powerBattery Tab<\/a>The technical solution of the welding structure is to directly weld the electrode metal sheet and the battery current collector by an ultrasonic welding machine in a direct welding manner when welding the positive and negative electrode ears.<\/p>\n

During the manufacturing process of lithium-ion battery cells, the cells are formed by stacking multiple layers of cell pole sheets, with a tab foil extending from each layer of cell foil. After the cell foils are aligned, the tab foils are also attached and aligned together. The cell foils need to be welded together to form a cell, and the tab foils need to be welded together to form tabs. Since the tab foils are very thin, only about 0.01 mm, ultrasonic welding is generally used traditionally. During welding, a bottom mold is placed on the lower part of the stacked tab foils as a support, the welding head of the ultrasonic welding device is pressed on the stacked tab foils, and a certain pressure is applied to the tab foils through the welding head. Then the ultrasonic welding device is started, and the welding head directly outputs ultrasonic waves to achieve resonance of atoms on adjacent tab foils under high-frequency vibration, thereby combining the tab foils together.<\/p>","protected":false},"excerpt":{"rendered":"

The tabs need to be installed on the lithium battery. There are currently four ways to connect to the lithium battery. 1. Drill and tap before screwing. Advantages: High mechanical connection strength, firm and reliable [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","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":[253,244],"class_list":["post-6024","post","type-post","status-publish","format-standard","hentry","category-blog","tag-blog","tag-dianchijier"],"_links":{"self":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/6024","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=6024"}],"version-history":[{"count":0,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/6024\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/media?parent=6024"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/categories?post=6024"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/tags?post=6024"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}