{"id":153882,"date":"2026-01-23T10:29:35","date_gmt":"2026-01-23T01:29:35","guid":{"rendered":"https:\/\/askinno.com\/global\/?p=153882"},"modified":"2026-01-23T10:34:23","modified_gmt":"2026-01-23T01:34:23","slug":"battery-deep-dive-part-4-cell-to-pack-technology","status":"publish","type":"post","link":"https:\/\/askinno.com\/global\/archives\/153882","title":{"rendered":"[Battery Deep Dive] Part 4: Cell-to-Pack Technology"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/askinno.com\/global\/archives\/153882\/#Beyond_Innovation_Cost_Competitiveness_in_Next-Generation_Batteries_Is_Critical\" >Beyond Innovation, Cost Competitiveness in Next-Generation Batteries Is Critical<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/askinno.com\/global\/archives\/153882\/#CTP_Simplifies_Battery_Architecture_and_Enhances_Cost_Efficiency\" >CTP Simplifies Battery Architecture and Enhances Cost Efficiency<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/askinno.com\/global\/archives\/153882\/#Rising_Importance_of_CTP_under_Strengthened_Safety_Standards\" >Rising Importance of CTP under Strengthened Safety Standards<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/askinno.com\/global\/archives\/153882\/#Enhancing_Pouch-Type_CTP_Technology\" >Enhancing Pouch-Type CTP Technology<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/askinno.com\/global\/archives\/153882\/#Next-Generation_CTP_with_Large-Surface_Cooling\" >Next-Generation CTP with Large-Surface Cooling<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-5'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/askinno.com\/global\/archives\/153882\/#Battery_Innovation_through_Four_R_D_Priorities\" >Battery Innovation through Four R&amp;D Priorities<\/a><\/li><\/ul><\/nav><\/div>\n<h5 class=\"gb-text\"><span class=\"ez-toc-section\" id=\"Beyond_Innovation_Cost_Competitiveness_in_Next-Generation_Batteries_Is_Critical\"><\/span><strong>Beyond Innovation, Cost Competitiveness in Next-Generation Batteries Is Critical<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>In batteries, cost is a core competitive factor. As battery pack prices trend downward toward an average of USD 100 per kWh across major chemistries like LFP and NCM, the overall cost of electric vehicles (EVs) is reaching a point at which it is comparable to that of internal combustion engine vehicles. This shift has been made possible through more stable raw material prices, large-scale production, and advancements in manufacturing technologies. Within this landscape, SK On is strengthening its cost competitiveness through Cell-to-Pack (CTP) and dry electrode technologies. As the fourth and final article in this series covering SK On\u2019s four core R&amp;D priorities, SK On will focus on CTP technology.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/askinno.com\/global\/wp-content\/uploads\/sites\/2\/2026\/01\/4.SKO_RD_4\ud3b8_\uacf5\ud1b5_ENG.png\" alt=\"\" class=\"wp-image-153885\" srcset=\"https:\/\/askinno.com\/global\/wp-content\/uploads\/sites\/2\/2026\/01\/4.SKO_RD_4\ud3b8_\uacf5\ud1b5_ENG.png 1000w, https:\/\/askinno.com\/global\/wp-content\/uploads\/sites\/2\/2026\/01\/4.SKO_RD_4\ud3b8_\uacf5\ud1b5_ENG-300x200.png 300w, https:\/\/askinno.com\/global\/wp-content\/uploads\/sites\/2\/2026\/01\/4.SKO_RD_4\ud3b8_\uacf5\ud1b5_ENG-768x512.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h5 class=\"gb-text\"><span class=\"ez-toc-section\" id=\"CTP_Simplifies_Battery_Architecture_and_Enhances_Cost_Efficiency\"><\/span><strong>CTP Simplifies Battery Architecture and Enhances Cost Efficiency<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>In battery manufacturing, reducing steps in the process directly translates to lower cost. Traditional EV batteries are built by grouping cells into modules, which are then assembled into a pack. By assembling cells directly into the pack structure, CTP eliminates the module stage entirely. This approach offers several advantages:<\/p>\n\n\n\n<p><strong>1) Maximized Space Efficiency <\/strong>allows more cells to be installed within the same pack volume by removing modules.<\/p>\n\n\n\n<p><strong>2) Improved Energy Efficiency<\/strong> increases energy density and driving range by enabling more cells within the same pack volume. Removing the module structure also reduces total weight, contributing to a lighter battery system. &nbsp;<\/p>\n\n\n\n<p><strong>3) Cost Reduction<\/strong> reduces assembly steps, which decreases labor and manufacturing costs while also eliminating module-related expenses.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"600\" src=\"https:\/\/askinno.com\/global\/wp-content\/uploads\/sites\/2\/2026\/01\/5.SKO_4\ud3b8-01_ENG.png\" alt=\"\" class=\"wp-image-153884\" srcset=\"https:\/\/askinno.com\/global\/wp-content\/uploads\/sites\/2\/2026\/01\/5.SKO_4\ud3b8-01_ENG.png 1000w, https:\/\/askinno.com\/global\/wp-content\/uploads\/sites\/2\/2026\/01\/5.SKO_4\ud3b8-01_ENG-300x180.png 300w, https:\/\/askinno.com\/global\/wp-content\/uploads\/sites\/2\/2026\/01\/5.SKO_4\ud3b8-01_ENG-768x461.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h5 class=\"gb-text\"><span class=\"ez-toc-section\" id=\"Rising_Importance_of_CTP_under_Strengthened_Safety_Standards\"><\/span><strong>Rising Importance of CTP under Strengthened Safety Standards<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>According to 360iResearch, the global CTP market is expected to grow at an average annual rate of 26.43%, reaching USD 277.5 billion by 2032. This growth has been driven in part by the tightening of thermal propagation (TP) safety standards worldwide, beginning with China\u2019s GB 38031 in 2020. Since then, regulations in major regions \u2014 including Europe\u2019s UN R100 and the U.S. FMVSS No. 305a \u2014 have significantly strengthened TP criteria regarding EV battery safety.<\/p>\n\n\n\n<p>To meet these reinforced requirements, battery packs have incorporated more insulation and structural reinforcement, resulting in increased complexity and weight. Under these conditions, conventional module-based pack designs face limitations in improving both safety and space efficiency. CTP can offer a more efficient way to meet strengthened TP standards while simplifying the pack structure and reducing manufacturing costs, ultimately improving overall cost competitiveness.<\/p>\n\n\n\n<p>In particular, pouch-type CTP designs have been gaining traction. Pouch cells offer greater design flexibility and allow for more efficient cell arrangement, enabling higher space utilization. This synergy between pouch cells and CTP can support improvements in both energy density and lightweight pack design.<\/p>\n\n\n\n<h5 class=\"gb-text\"><span class=\"ez-toc-section\" id=\"Enhancing_Pouch-Type_CTP_Technology\"><\/span><strong>Enhancing Pouch-Type CTP Technology<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>To maximize the benefits that CTP technology has to offer, SK On has established a dedicated task force within its Future Technology Research Institute in Korea to further advance pouch-type CTP technology. By utilizing flexible aluminum pouch film, the design reduces structural constraints, improves space utilization, and is engineered to support a lighter and more adaptable pack configuration, while also serving to protect the cells from external impact. Additionally, thermal insulation materials placed between cells help control thermal propagation.<\/p>\n\n\n\n<h5 class=\"gb-text\"><span class=\"ez-toc-section\" id=\"Next-Generation_CTP_with_Large-Surface_Cooling\"><\/span><strong>Next-Generation CTP with Large-Surface Cooling<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>SK On has developed various CTP structures, including bottom-cooling and immersion-cooling designs. Building on these foundations, the company is expanding its portfolio with one of the industry\u2019s first pouch-type CTP designs to apply large-surface cooling. This technology inserts aluminum cooling plates, \u2014 rather than thermal insulation materials \u2014 between cells, enabling rapid heat absorption and dissipation while also providing structural support. In this structure, the cooling plates are lighter and more durable compared to conventional insulation materials. As a result, the system achieves high space utilization and excellent cooling performance.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"600\" src=\"https:\/\/askinno.com\/global\/wp-content\/uploads\/sites\/2\/2026\/01\/6.SKO_4\ud3b8-02_ENG.png\" alt=\"\" class=\"wp-image-153886\" srcset=\"https:\/\/askinno.com\/global\/wp-content\/uploads\/sites\/2\/2026\/01\/6.SKO_4\ud3b8-02_ENG.png 1000w, https:\/\/askinno.com\/global\/wp-content\/uploads\/sites\/2\/2026\/01\/6.SKO_4\ud3b8-02_ENG-300x180.png 300w, https:\/\/askinno.com\/global\/wp-content\/uploads\/sites\/2\/2026\/01\/6.SKO_4\ud3b8-02_ENG-768x461.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h5 class=\"gb-text\"><span class=\"ez-toc-section\" id=\"Battery_Innovation_through_Four_R_D_Priorities\"><\/span><strong>Battery Innovation through Four R&amp;D Priorities<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h5>\n\n\n\n<p>Through its four strategic R&amp;D priorities, SK On continues to strengthen both battery safety and cost competitiveness. Solid-state batteries and TP prevention technologies raise the bar for safety, while dry electrode technology and CTP design enhance cost competitiveness. Together, these four initiatives form SK On\u2019s technological journey to shape the next generation of battery innovation.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><strong>\u25a0 Related articles<\/strong><br><br>- <a href=\"https:\/\/askinno.com\/global\/archives\/153768\" target=\"_blank\" rel=\"noreferrer noopener\">[Battery Deep Dive] Part 1: Solid-State Batteries<\/a><br><br>- <a href=\"https:\/\/askinno.com\/global\/archives\/153809\" target=\"_blank\" rel=\"noreferrer noopener\">[Battery Deep Dive] Part 2: Thermal Propagation Prevention<\/a><br><br>- <a href=\"https:\/\/askinno.com\/global\/archives\/153845\" target=\"_blank\" rel=\"noreferrer noopener\">[Battery Deep Dive] Part 3: The Dry Electrode Process<\/a><\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Beyond Innovation, Cost Competitiveness in Next-Generation Batteries Is Critical In batteries, cost is a core competitive factor. As battery pack prices trend downward toward an average of USD 100 per kWh across major chemistries like LFP and NCM, the overall cost of electric vehicles (EVs) is reaching a point at which it is comparable to &#8230; <a title=\"[Battery Deep Dive] Part 4: Cell-to-Pack Technology\" class=\"read-more\" href=\"https:\/\/askinno.com\/global\/archives\/153882\" aria-label=\"Read more about [Battery Deep Dive] Part 4: Cell-to-Pack Technology\">Read more<\/a><\/p>\n","protected":false},"author":612,"featured_media":153888,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1911,1912],"tags":[1918,35,1945,1946,1953,1955,1954,648],"class_list":["post-153882","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-inno-focus","category-deepdive","tag-batteriesmaterials","tag-battery","tag-cell-to-pack","tag-ctp","tag-ctp-technology","tag-next-generation-ctp","tag-pouch-type-ctp","tag-sk-on"],"acf":[],"_links":{"self":[{"href":"https:\/\/askinno.com\/global\/wp-json\/wp\/v2\/posts\/153882","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/askinno.com\/global\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/askinno.com\/global\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/askinno.com\/global\/wp-json\/wp\/v2\/users\/612"}],"replies":[{"embeddable":true,"href":"https:\/\/askinno.com\/global\/wp-json\/wp\/v2\/comments?post=153882"}],"version-history":[{"count":3,"href":"https:\/\/askinno.com\/global\/wp-json\/wp\/v2\/posts\/153882\/revisions"}],"predecessor-version":[{"id":153892,"href":"https:\/\/askinno.com\/global\/wp-json\/wp\/v2\/posts\/153882\/revisions\/153892"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/askinno.com\/global\/wp-json\/wp\/v2\/media\/153888"}],"wp:attachment":[{"href":"https:\/\/askinno.com\/global\/wp-json\/wp\/v2\/media?parent=153882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/askinno.com\/global\/wp-json\/wp\/v2\/categories?post=153882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/askinno.com\/global\/wp-json\/wp\/v2\/tags?post=153882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}