{"id":7237,"date":"2023-06-02T16:25:10","date_gmt":"2023-06-02T08:25:10","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=7237"},"modified":"2023-09-01T14:07:38","modified_gmt":"2023-09-01T06:07:38","slug":"ele5827","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/ele5827\/","title":{"rendered":"The influence of the position of the battery tab material on lithium batteries"},"content":{"rendered":"

The position of the tab has a great influence on the internal resistance and rate of lithium-ion batteries. When the tab is located between the positive and negative electrodes, the internal resistance and rate performance of the battery are the best, and its performance is close to that of laminated batteries. The bump of the ordinary structure is located at one end of the pole piece, while the bump is located in the middle of the pole piece.<\/p>\n

The internal resistance and DC resistance (DCR) of the same model of plug-in structure and ordinary structure are very different. The internal resistance of the ordinary structure is 30m\u03a9, and the internal resistance of the plug-in structure is only 17m\u03a9; in the charging state of 50%, the DCR of the ordinary structure is 56.6m\u03a9, and the DCR of the plug-in structure is 47.4m\u03a9. The difference is obvious. In the middle of the pole piece, electrons diffuse from the middle to both ends during the discharge process. When the current is small, the carrier can pass the electrons.<\/p>\n

The multi-ear winding technology cuts a fixed ear shape on the carrier. After the winding is completed, the carrier is welded to lead out the ears to form a multi-ear battery.<\/p>\n

Due to the large number of tabs and their uniform distribution, this structure has better rate performance and lower charge and discharge temperature rise, making it suitable for high-power equipment. Due to its welding requirements and high precision, the cost of batteries made with this structure is relatively high. The advantages of the multi-pole pin structure include: further reducing battery impedance, improving battery high-rate charge and discharge performance, and supporting 5C~10C discharge; effectively reducing the temperature rise of the battery under high-rate discharge, with the battery surface temperature rise less than 20\u00b0C during 10C discharge; low battery temperature, significantly improving battery cycle life.<\/p>\n

\"\"

The internal resistance of multi-pole winding batteries is much smaller than that of pole-piece intermediate batteries, and their constant current charging capacity accounts for a larger proportion of the total capacity. At present, mobile phone manufacturers generally claim that their products can be charged quickly, but most of them are limited to the first 30 minutes, and the actual constant voltage stage in the later stage of charging is longer. Multi-pole winding technology can improve this problem, but due to its large number of pole ears, welding and lead wires are required, resulting in a lower energy density. Improving the energy density of multi-pole winding structure batteries will be the main direction of this technology in the future.<\/p>\n

Compared with multi-electrode winding, laminated batteries have one pole lug per layer. This structure has the highest fast charging performance among all current structures. However, due to the limitation of its automation level, it is currently less used in the consumer electronics field and is mainly used in the military and power battery fields. It is believed that with the improvement of automation capabilities, lamination technology will become mainstream in the future.<\/p>","protected":false},"excerpt":{"rendered":"

The position of the tab has a great influence on the internal resistance and rate of lithium-ion batteries. When the tab is located between the positive and negative electrodes, the internal resistance and rate performance of the battery are the best, and its performance is related to the layer [\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":"","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":[253,242],"class_list":["post-7237","post","type-post","status-publish","format-standard","hentry","category-blog","tag-blog","tag-jiercailiao"],"_links":{"self":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/7237","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=7237"}],"version-history":[{"count":0,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/posts\/7237\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/media?parent=7237"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/categories?post=7237"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ray-tron.com\/en\/wp-json\/wp\/v2\/tags?post=7237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}