{"id":83732,"date":"2025-09-16T10:35:12","date_gmt":"2025-09-16T14:35:12","guid":{"rendered":"https:\/\/autosector.com\/?p=83732"},"modified":"2025-09-16T10:35:12","modified_gmt":"2025-09-16T14:35:12","slug":"sk-ons-all-solid-state-ev-batteries-will-arrive-ahead-of-schedule","status":"publish","type":"post","link":"http:\/\/autosector.com\/?p=83732","title":{"rendered":"SK On&#8217;s breakthrough all-solid-state EV batteries will arrive ahead of schedule"},"content":{"rendered":"<figure class=\"img-border featured-image\">\n\t<img fetchpriority=\"high\" width=\"1400\" height=\"700\" src=\"https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-3.jpeg?quality=82&amp;strip=all&amp;w=1400\" class=\"skip-lazy wp-post-image\" alt=\"SK-On-all-solid-state-EV-batteries\" srcset=\"https:\/\/i0.wp.com\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-3.jpeg?w=320&amp;quality=82&amp;strip=all&amp;ssl=1 320w, https:\/\/i0.wp.com\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-3.jpeg?w=640&amp;quality=82&amp;strip=all&amp;ssl=1 640w, https:\/\/i0.wp.com\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-3.jpeg?w=1024&amp;quality=82&amp;strip=all&amp;ssl=1 1024w, https:\/\/i0.wp.com\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-3.jpeg?w=1500&amp;quality=82&amp;strip=all&amp;ssl=1 1500w\" decoding=\"async\" fetchpriority=\"high\"\/><\/figure>\n<p>The next generation of electric vehicle batteries will be here sooner than expected. After opening the first-of-its-kind pilot plant for its <a href=\"https:\/\/electrek.co\/guides\/solid-state-batteries\/\">all-solid-state EV batteries<\/a> this week, SK On said it plans to bring the breakthrough battery tech to market ahead of schedule.<\/p>\n<p><span id=\"more-434452\"\/><\/p>\n<h2 class=\"wp-block-heading\" id=\"h-sk-on-s-all-solid-state-ev-batteries-will-be-here-in-2029\">SK On\u2019s all-solid-state EV batteries will be here in 2029<\/h2>\n<p>If you haven\u2019t heard it by now, all-solid-state EV batteries are viewed as a potential game-changer, promising to unlock longer driving range, faster charging times, and better overall performance than the lithium-ion batteries used today. <\/p>\n<p>Although the new battery tech shows promise, producing it on a large scale has not been so easy.  That could soon change, according to leading global battery maker SK On.<\/p>\n<p>After opening its new pilot plant in South Korea on September 15, SK On said it will bring all-solid-state EV batteries to market a year ahead of schedule.<\/p>\n<p>\t<span class=\"outbrain-ad-label\">Advertisement &#8211; scroll for more content<\/span><\/p>\n<p>SK On now plans to commercialize its ASSBs by 2029. Initially, the company aims to launch the batteries with an energy density of 800 Wh\/L. Looking further out, SK On said it plans to offer all-solid-state batteries with an energy density of 1,000 Wh\/L.<\/p>\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" height=\"638\" width=\"1024\" src=\"https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries.jpeg?quality=82&amp;strip=all&amp;w=1024\" alt=\"SK-On-all-solid-state-EV-batteries\" class=\"wp-image-434465\" srcset=\"https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries.jpeg 1400w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries.jpeg?resize=150,93 150w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries.jpeg?resize=300,187 300w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries.jpeg?resize=768,478 768w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries.jpeg?resize=1024,638 1024w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries.jpeg?resize=350,218 350w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries.jpeg?resize=140,87 140w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"\/><figcaption class=\"wp-element-caption\">SK On President and CEO Seok-hee Lee (center), SK On Chief Technology Officer Jang-weon Rhee (fourth from left), Head of SK On Future Technology Institute Ki-soo Park (sixth from left), Country Manager of Solid Power Korea Andreas Maier (second from left) and other guests attend the ribbon cutting ceremony for SK On\u2019s all-solid-state battery pilot plant completion at SK On Future Technology Institute in Daejeon on September 15, 2025 (Source: SK Innovation)<\/figcaption><\/figure>\n<p>During the <a href=\"https:\/\/skinnonews.com\/global\/archives\/21968\">opening ceremony<\/a>, SK ON\u2019s CEO, Seok-hee Lee, said, \u201cThis pilot plant will serve as a cornerstone for SK to leap forward,\u201d adding the company remains \u201cat the forefront of commercializing all-solid-state batteries.\u201d<\/p>\n<p>SK On said the 4,600-square-meter (50,000 sq ft) facility utilizes its own unique \u201cWarm Isostatic Press (WIP)-free\u201d process, the first to employ this technology in Korea.<\/p>\n<p>By applying pressure to electrodes at higher temperatures, SK On said its WIP process improves density and performance.<\/p>\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" height=\"512\" width=\"1024\" src=\"https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-4.jpeg?quality=82&amp;strip=all&amp;w=1024\" alt=\"SK-On-all-solid-state-EV-batteries\" class=\"wp-image-434470\" srcset=\"https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-4.jpeg 1400w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-4.jpeg?resize=150,75 150w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-4.jpeg?resize=300,150 300w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-4.jpeg?resize=768,384 768w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-4.jpeg?resize=1024,512 1024w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-4.jpeg?resize=350,175 350w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-4.jpeg?resize=140,70 140w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-4.jpeg?resize=290,145 290w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><figcaption class=\"wp-element-caption\">SK On EV battery roadmap display at InterBattery 2025 (Source: SK Innovation)<\/figcaption><\/figure>\n<p>A WIP tech is a process that applies pressure to electrodes at higher temperatures to improve density and performance. However, since it requires a cell-sealing process, it isn\u2019t easy to produce at a mass scale.<\/p>\n<p>SK On said its unique cell design addresses the issue while reducing resistance within the electrodes. The company also improved the bonding between electrodes and solid electrolytes, resulting in \u201csmoother ion transport, more stable charging and discharging, and longer cycle life.\u201d<\/p>\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" height=\"512\" width=\"1024\" src=\"https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-2.jpeg?quality=82&amp;strip=all&amp;w=1024\" alt=\"SK-On-all-solid-state-EV-batteries\" class=\"wp-image-434466\" srcset=\"https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-2.jpeg 1400w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-2.jpeg?resize=150,75 150w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-2.jpeg?resize=300,150 300w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-2.jpeg?resize=768,384 768w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-2.jpeg?resize=1024,512 1024w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-2.jpeg?resize=350,175 350w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-2.jpeg?resize=140,70 140w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-2.jpeg?resize=290,145 290w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><figcaption class=\"wp-element-caption\">(Source: SK Innovation)<\/figcaption><\/figure>\n<p>The all-solid-state pilot plant is located at the SK On Institute of Future Technology in Daejeon, which is about 150 km from Seoul. Several high-profile executives attended the event, including Andrea Maier, Head of Solid Power Korea. SK On and Solid Power teamed up last year to accelerate the promising new battery tech.<\/p>\n<p>SK On will build prototypes at the facility to test quality and performance ahead of mass-scale production. The new pilot line will mainly be used to develop all-solid-state batteries, but SK said it will dedicate some lines to lithium-metal batteries as well.<\/p>\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" height=\"512\" width=\"1024\" src=\"https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-5.jpeg?quality=82&amp;strip=all&amp;w=1024\" alt=\"SK-On-all-solid-state-EV-batteries\" class=\"wp-image-434471\" srcset=\"https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-5.jpeg 1400w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-5.jpeg?resize=150,75 150w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-5.jpeg?resize=300,150 300w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-5.jpeg?resize=768,384 768w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-5.jpeg?resize=1024,512 1024w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-5.jpeg?resize=350,175 350w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-5.jpeg?resize=140,70 140w, https:\/\/electrek.co\/wp-content\/uploads\/sites\/3\/2025\/09\/SK-On-all-solid-state-EV-batteries-5.jpeg?resize=290,145 290w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><figcaption class=\"wp-element-caption\">SK Innovation executives drive the Hyundai IONIQ 9 and Genesis electrified G80 equipped with SK On batteries (Source: SK Innovation)<\/figcaption><\/figure>\n<p>The battery giant filed patents for its unique new technology in South Korea and internationally. SK On is one of the many battery manufacturers, automakers, and other startups chasing the \u201choly grail\u201d of EV batteries.<\/p>\n<p>Mercedes-Benz, BMW, Volkswagen, Toyota, and Nissan, to name a few, are developing solid-state EV technology. Leading battery makers, including CATL, BYD, and LG Energy Solutions, are also planning to bring the new tech to market.<\/p>\n<p>Just last week, Mercedes-Benz announced <a href=\"https:\/\/electrek.co\/2025\/09\/09\/mercedes-eqs-with-solid-state-ev-batteries-drove-750-miles\/\">it drove a modified EQS<\/a>, equipped with solid-state batteries, for 1,205 km (750 miles) on a single charge. And the EQS still had 85 miles of range remaining.<\/p>\n<p>Which company will be the first to launch solid-state batteries on a mass scale? According to SAIC MG, <a href=\"https:\/\/electrek.co\/2025\/08\/29\/first-ev-semi-solid-state-battery-launches-for-15000\/\">the new MG4<\/a>, launched last month, is \u201cthe world\u2019s first mass-produced semi-solid-state\u201d electric vehicle. It starts at just 99,800 yuan ($14,000) in China.<\/p>\n<div class=\"google-preferred-source-badge\">\n\t\t\t\t<a target=\"_blank\" rel=\"nofollow\" href=\"https:\/\/google.com\/preferences\/source?q=https:\/\/electrek.co\"><br \/>\n\t\t\t<img decoding=\"async\" class=\"google-preferred-source-badge-dark\" src=\"https:\/\/electrek.co\/wp-content\/themes\/ninetofive\/dist\/images\/google-preferred-source-badge-dark.png\" alt=\"Add Electrek as a preferred source on Google\"\/><br \/>\n\t\t\t<img decoding=\"async\" class=\"google-preferred-source-badge-light\" src=\"https:\/\/electrek.co\/wp-content\/themes\/ninetofive\/dist\/images\/google-preferred-source-badge-light.png\" alt=\"Add Electrek as a preferred source on Google\"\/><br \/>\n\t\t<\/a>\n\t\t\t<\/div>\n<div class=\"ad-disclaimer-container\" readability=\"6.3518518518519\">\n<p class=\"disclaimer-affiliate\"><em>FTC: We use income earning auto affiliate links.<\/em> <a href=\"https:\/\/electrek.co\/about\/#affiliate\">More.<\/a><\/p>\n<p><!-- post ad --><\/div>\n","protected":false},"excerpt":{"rendered":"<p>The next generation of electric vehicle batteries will be here sooner than expected. After opening the first-of-its-kind pilot plant for its all-solid-state EV batteries this week, SK On said it plans to bring the breakthrough battery tech to market ahead of schedule. SK On\u2019s all-solid-state EV batteries will be here in 2029 If you haven\u2019t [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8313,"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":"","ast-disable-related-posts":"","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":"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":[4],"tags":[],"class_list":["post-83732","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-e-cars"],"_links":{"self":[{"href":"http:\/\/autosector.com\/index.php?rest_route=\/wp\/v2\/posts\/83732","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/autosector.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/autosector.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/autosector.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/autosector.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=83732"}],"version-history":[{"count":0,"href":"http:\/\/autosector.com\/index.php?rest_route=\/wp\/v2\/posts\/83732\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/autosector.com\/index.php?rest_route=\/wp\/v2\/media\/8313"}],"wp:attachment":[{"href":"http:\/\/autosector.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=83732"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/autosector.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=83732"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/autosector.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=83732"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}