{"id":83737,"date":"2025-09-16T14:52:57","date_gmt":"2025-09-16T18:52:57","guid":{"rendered":"https:\/\/autosector.com\/?p=83737"},"modified":"2025-09-16T14:52:57","modified_gmt":"2025-09-16T18:52:57","slug":"sk-on-solid-state-ev-battery-pilot-production","status":"publish","type":"post","link":"http:\/\/autosector.com\/?p=83737","title":{"rendered":"SK On Just Pushed Solid-State EV Batteries Closer to Reality"},"content":{"rendered":"<ul>\n<li>South Korean battery giant SK On has started the trial production of all-solid-state batteries.<\/li>\n<li>The company said it was using a unique process to make the electrodes reliably on an automated production line.<\/li>\n<li>U.S.-based Solid Power and SK On have been working on solid-state batteries for more than a year.<\/li>\n<\/ul>\n<p><a href=\"https:\/\/insideevs.com\/news\/771682\/mercedes-eqs-solid-state-range-over-700-miles\/\" data-inline-widget=\"internal-links\" data-type-id=\"0\" data-params=\"%7B%22article_edition_id%22%3A%22771682%22%2C%22section%22%3A%221%22%2C%22alias%22%3A%22mercedes-eqs-solid-state-range-over-700-miles%22%7D\">Solid-state batteries<\/a> for electric vehicles are slowly coming out of the lab and inching towards reality. Korean EV battery giant SK On, a supplier to Hyundai, Kia, Ford and Nissan, among others, said on Monday that it had opened its first pilot production line for solid-state batteries in the city of Daejeon, with plans for commercialization by the end of the decade.<\/p>\n<p>These next-generation batteries swap the liquid electrolyte\u2014the material which facilitates the movement of ions during charge and discharge cycles\u2014<a href=\"https:\/\/insideevs.com\/news\/771402\/every-solid-state-battery-ev\/\" data-inline-widget=\"internal-links\" data-type-id=\"0\" data-params=\"%7B%22article_edition_id%22%3A%22771402%22%2C%22section%22%3A%221%22%2C%22alias%22%3A%22every-solid-state-battery-ev%22%7D\">with a solid electrolyte<\/a>. At least on paper, the benefits include substantially better resistance to fire, vast improvements in energy density leading to longer driving range, and improved fast charging speeds.<\/p>\n<section data-is-mosaic=\"0\" contenteditable=\"false\" draggable=\"true\" data-widget=\"image\" data-border=\"\" data-id=\"8209442\" readability=\"1\">\n        <span class=\"svg-search\"><br \/>\n            <svg>\n                <use xlink:href=\"https:\/\/insideevs.com\/design\/dist\/critical\/icons\/sprite-common-0-1de6c82323269ad4e75a31f5f21e741f.svg#semidir\"\/>\n            <\/svg><br \/>\n        <\/span>\n    <picture><source type=\"image\/webp\" srcset=\"&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/L3XpXQ\/s5\/sk-on-lithium-ion-battery-pouch-cell.webp 213w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/L3XpXQ\/s6\/sk-on-lithium-ion-battery-pouch-cell.webp 445w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/L3XpXQ\/s4\/sk-on-lithium-ion-battery-pouch-cell.webp 889w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/L3XpXQ\/s3\/sk-on-lithium-ion-battery-pouch-cell.webp 1280w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/L3XpXQ\/s2\/sk-on-lithium-ion-battery-pouch-cell.webp 1440w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/L3XpXQ\/s1\/sk-on-lithium-ion-battery-pouch-cell.webp 1920w&#10;        \" sizes=\"(max-width: 767px) calc(100vw - 24px), (max-width: 1023px) calc(100vw - 48px), 644px\"><source type=\"image\/jpeg\" srcset=\"&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/L3XpXQ\/s5\/sk-on-lithium-ion-battery-pouch-cell.jpg 213w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/L3XpXQ\/s6\/sk-on-lithium-ion-battery-pouch-cell.jpg 445w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/L3XpXQ\/s4\/sk-on-lithium-ion-battery-pouch-cell.jpg 889w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/L3XpXQ\/s3\/sk-on-lithium-ion-battery-pouch-cell.jpg 1280w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/L3XpXQ\/s2\/sk-on-lithium-ion-battery-pouch-cell.jpg 1440w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/L3XpXQ\/s1\/sk-on-lithium-ion-battery-pouch-cell.jpg 1920w&#10;        \" sizes=\"(max-width: 767px) calc(100vw - 24px), (max-width: 1023px) calc(100vw - 48px), 644px\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cdn.motor1.com\/images\/static\/16x9-tr.png\" alt=\"SK On Lithium Ion Battery Pouch Cell\" width=\"16\" height=\"9\" loading=\"lazy\"\/><br \/>\n    <\/source><\/source><\/picture>\n<div class=\"photo-title\" readability=\"7\">\n<p>SK On Lithium Ion Battery Pouch Cell<\/p>\n<\/div>\n<p>Photo by: SK On<\/p>\n<\/section>\n<p>For more than a decade, scholars and industry experts have referred to solid-state batteries as the \u201choly grail\u201d of battery technology in several published <a href=\"https:\/\/www.sciencedaily.com\/releases\/2017\/11\/171128113522.htm\" target=\"_blank\" rel=\"noopener noreferrer\">scientific papers<\/a>. But industry experts also <a href=\"https:\/\/insideevs.com\/news\/749893\/evs-solid-state-batteries-near-finish-line-roadblocks\/\" data-inline-widget=\"internal-links\" data-type-id=\"0\" data-params=\"%7B%22article_edition_id%22%3A%22749893%22%2C%22section%22%3A%221%22%2C%22alias%22%3A%22evs-solid-state-batteries-near-finish-line-roadblocks%22%7D\">warned<\/a> that the technology was too theoretical, and scaling up is a massive challenge. Still, automakers and battery companies have continued their research and development and are getting closer to commercialization.<\/p>\n<p>SK On\u2019s facility will build prototype cells for assessment and validation before they\u2019re greenlit for commercial production. The company is collaborating with Colorado-based battery start-up <a href=\"https:\/\/insideevs.com\/news\/590430\/solid-power-pilot-production-batteries\/\" data-inline-widget=\"internal-links\" data-type-id=\"0\" data-params=\"%7B%22article_edition_id%22%3A%22590430%22%2C%22section%22%3A%221%22%2C%22alias%22%3A%22solid-power-pilot-production-batteries%22%7D\">Solid Power<\/a> to develop these cells, which the company claims have an energy density of 800 watt hours per liter, which is more than the average <a href=\"https:\/\/energy.sustainability-directory.com\/term\/battery-energy-density\/\" target=\"_blank\" rel=\"noopener noreferrer\">400-500 Wh\/L energy density<\/a> of nickel-based lithium ion batteries on the cell level.<\/p>\n<p>The company claims that over time, its all-solid-state cells could reach an energy density of 1,000 Wh\/L. It&#8217;s also claiming that its 50,000 square foot pilot production plant will use what\u2019s called a \u201cwarm isostatic press-free\u201d technology, which applies uniform pressure on electrodes to improve energy density and performance.<\/p>\n<section data-is-mosaic=\"0\" contenteditable=\"false\" draggable=\"true\" data-widget=\"image\" data-border=\"\" data-id=\"8252973\" readability=\"1\">\n        <span class=\"svg-search\"><br \/>\n            <svg>\n                <use xlink:href=\"https:\/\/insideevs.com\/design\/dist\/critical\/icons\/sprite-common-0-1de6c82323269ad4e75a31f5f21e741f.svg#semidir\"\/>\n            <\/svg><br \/>\n        <\/span>\n    <picture><source type=\"image\/webp\" srcset=\"&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/7Z2QBo\/s5\/sk-on-battery-plant-in-the-u.s..webp 213w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/7Z2QBo\/s6\/sk-on-battery-plant-in-the-u.s..webp 445w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/7Z2QBo\/s4\/sk-on-battery-plant-in-the-u.s..webp 889w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/7Z2QBo\/s3\/sk-on-battery-plant-in-the-u.s..webp 1280w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/7Z2QBo\/s2\/sk-on-battery-plant-in-the-u.s..webp 1440w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/7Z2QBo\/s1\/sk-on-battery-plant-in-the-u.s..webp 1920w&#10;        \" sizes=\"(max-width: 767px) calc(100vw - 24px), (max-width: 1023px) calc(100vw - 48px), 644px\"><source type=\"image\/jpeg\" srcset=\"&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/7Z2QBo\/s5\/sk-on-battery-plant-in-the-u.s..jpg 213w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/7Z2QBo\/s6\/sk-on-battery-plant-in-the-u.s..jpg 445w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/7Z2QBo\/s4\/sk-on-battery-plant-in-the-u.s..jpg 889w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/7Z2QBo\/s3\/sk-on-battery-plant-in-the-u.s..jpg 1280w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/7Z2QBo\/s2\/sk-on-battery-plant-in-the-u.s..jpg 1440w,&#10;            https:\/\/cdn.motor1.com\/images\/mgl\/7Z2QBo\/s1\/sk-on-battery-plant-in-the-u.s..jpg 1920w&#10;        \" sizes=\"(max-width: 767px) calc(100vw - 24px), (max-width: 1023px) calc(100vw - 48px), 644px\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cdn.motor1.com\/images\/static\/16x9-tr.png\" alt=\"SK On Battery Plant In The U.S.\" width=\"16\" height=\"9\" loading=\"lazy\"\/><br \/>\n    <\/source><\/source><\/picture>\n<div class=\"photo-title\" readability=\"7\">\n<p>SK On&#8217;s U.S. EV battery plant in Georgia.<\/p>\n<\/div>\n<p>Photo by: SK On<\/p>\n<\/section>\n<p>The most common materials for solid electrolytes include sulfides, polymers, ceramic oxides or some sort of hybrid or composite materials. SK On said its pilot production line will begin producing sulfide-based all-solid-state batteries and some lines will also make <a href=\"https:\/\/insideevs.com\/news\/709129\/stanford-battery-research\/\" data-inline-widget=\"internal-links\" data-type-id=\"0\" data-params=\"%7B%22article_edition_id%22%3A%22709129%22%2C%22section%22%3A%221%22%2C%22alias%22%3A%22stanford-battery-research%22%7D\">lithium-metal batteries<\/a>, which replace the graphite anode with one made from pure lithium metal.<\/p>\n<p>But SK On admitted that building these cells was far from easy. It said its patented technology requires \u201ccell sealing,\u201d which is a challenging process to automate on a continuous production line, and that\u2019s something the company will hope to iron out during the pilot phase.<\/p>\n<p>To address this issue, the company claims to have tweaked how battery materials are mixed and pressed to cut down resistance, which keeps cells cooler and more efficient. It also improved how electrodes (anode and cathode) bond with solid electrolytes, making the ions flow smoothly for longer-lasting, more stable batteries.<\/p>\n<section class=\"widget-newsletter\" contenteditable=\"false\" draggable=\"true\" data-widget=\"widget-newsletter\" readability=\"-18.8\">\n<\/section>\n<p>The all-solid-state batteries will enter commercial production by 2029, a full year ahead of schedule, according to the company. Notably, SK On is also working to bring low-cost lithium-iron phosphate (LFP) battery production to the U.S. for battery energy storage systems. Plus, its BlueOval SK joint venture with Ford started manufacturing nickel-manganese-cobalt (NMC) batteries at a $5.8 billion plant in Glendale, Kentucky, in August for the F-150 Lightning and the E-Transit van.<\/p>\n<p>The solid-state era may be arriving sooner than we think.\u00a0<\/p>\n<p><em>Have a tip? Contact the author: <a href=\"mailto:suvrat.kothari@insideevs.com\" target=\"_blank\" rel=\"noopener\">suvrat.kothari@insideevs.com<\/a><\/em><\/p>\n<section class=\"relatedContent-new\" contenteditable=\"false\" draggable=\"true\" data-widget=\"related-content\" data-widget-size=\"content\" data-params=\"%7B%22type_id%22%3A0%2C%22title_id%22%3A%22%22%2C%22items%22%3A%5B%7B%22article_edition_id%22%3A%22772420%22%2C%22title%22%3A%22How%20Rivian%20Aims%20To%20Make%20Your%20Home%20EV%20Charging%20Cheaper%22%2C%22alias%22%3A%22rivian-r1s-r1t-off-peak-automatic-home-charging%22%2C%22section%22%3A%221%22%2C%22is_video%22%3A%220%22%2C%22images%22%3A%7B%22s5%22%3A%22https%3A%2F%2Fcdn.motor1.com%2Fimages%2Fmgl%2Fwlqeyo%2Fs5%2F2025-rivian-r1t-review.jpg%22%7D%7D%2C%7B%22article_edition_id%22%3A%22772414%22%2C%22title%22%3A%22Tesla%20Wants%20To%20Build%20More%20EVs%20In%20Europe.%20Who%20Will%20It%20Sell%20Them%20To%3F%22%2C%22alias%22%3A%22tesla-europe-production-increase-sales-drop%22%2C%22section%22%3A%221%22%2C%22is_video%22%3A%220%22%2C%22images%22%3A%7B%22s5%22%3A%22https%3A%2F%2Fcdn.motor1.com%2Fimages%2Fmgl%2FjllOR1%2Fs5%2Ftesla-giga-berlin-model-y-general-assembly-tesla-q2-2022-report.jpg%22%7D%7D%2C%7B%22article_edition_id%22%3A%22772392%22%2C%22title%22%3A%22BYD%E2%80%99s%20New%20Electric%20Bus%20Can%20Keep%20Things%20In%20Check%20During%20A%20Tire%20Blowout%22%2C%22alias%22%3A%22byd-ev-bus-platform-3-battery-specs-range%22%2C%22section%22%3A%221%22%2C%22is_video%22%3A%220%22%2C%22images%22%3A%7B%22s5%22%3A%22https%3A%2F%2Fcdn.motor1.com%2Fimages%2Fmgl%2FVzBezK%2Fs5%2Fbyd-c11-electric-bus.jpg%22%7D%7D%2C%7B%22article_edition_id%22%3A%22772382%22%2C%22title%22%3A%22AMG%20Isn%E2%80%99t%20Sure%20If%20It%20Wants%20Another%20Electric%20Coupe%22%2C%22alias%22%3A%22amg-electric-coupe-under-consideration%22%2C%22section%22%3A%221%22%2C%22is_video%22%3A%220%22%2C%22images%22%3A%7B%22s5%22%3A%22https%3A%2F%2Fcdn.motor1.com%2Fimages%2Fmgl%2FRqMYqe%2Fs5%2Fmercedes-amg-sls-electric-drive.jpg%22%7D%7D%5D%7D\">   <\/section>\n<p>                                                                        <!-- new gallery place, attached gallery --><\/p>\n<div class=\"group isBottomShare mb-spacing-md-lg\">\n<p>\n                                    Share this Story                                <\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>South Korean battery giant SK On has started the trial production of all-solid-state batteries. The company said it was using a unique process to make the electrodes reliably on an automated production line. U.S.-based Solid Power and SK On have been working on solid-state batteries for more than a year. Solid-state batteries for electric vehicles [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":83738,"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-83737","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\/83737","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=83737"}],"version-history":[{"count":0,"href":"http:\/\/autosector.com\/index.php?rest_route=\/wp\/v2\/posts\/83737\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/autosector.com\/index.php?rest_route=\/wp\/v2\/media\/83738"}],"wp:attachment":[{"href":"http:\/\/autosector.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=83737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/autosector.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=83737"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/autosector.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=83737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}