Ultimate design principles and fabrication process for high-energy-density solid-state pouch cells based on solid polymer electrolytes

Ultimate design principles and fabrication process for high-energy-density solid-state pouch cells based on solid polymer electrolytes | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Ultimate design principles and fabrication process for high-energy-density solid-state pouch cells based on solid polymer electrolytes Wonmi Lee, Taegyun Yu, Juho Lee, Sungbin Jang, Juhee Kim, Yujin Han, and 11 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-2748501/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 12 Jul, 2024 Read the published version in Nature Communications → Version 1 posted You are reading this latest preprint version Abstract Solid-state lithium batteries have become an attractive alternative to traditional lithium-ion batteries due to their enhanced safety and energy density potential. However, their current level is still immature from a cell engineering perspective. This work presents ultimate design principles for achieving high energy density in practical solid-state lithium batteries. Our proposed design logic is based on evaluating the microstructural and architectural parameters that significantly impact energy density. We demonstrate the feasibility of this principle through the fabrication of a 10-layer stacked solid-state pouch cell with a solid polymer electrolyte, resulting in an energy density of 280 Wh kg −1 and 600 Wh L −1 . This research provides a promising path forward for the scientific community to pursue practical, high-energy-density solid-state batteries that can meet the growing demand for energy storage solutions. Physical sciences/Energy science and technology/Energy storage/Batteries Physical sciences/Materials science/Materials for energy and catalysis/Batteries solid-state batteries electrode density isostatic press electrode–solid electrolyte composite design energy density Full Text Additional Declarations There is NO Competing Interest. Supplementary Files SSBcelldesignprinciple20230328SupplementaryInformationNatureNanotechnology.pdf Supplementary Information Cite Share Download PDF Status: Published Journal Publication published 12 Jul, 2024 Read the published version in Nature Communications → Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-2748501","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":190630125,"identity":"8d846278-555d-4bae-b4f0-47ffa62ca988","order_by":0,"name":"Wonmi Lee","email":"","orcid":"","institution":"Korea Institute of Energy Research","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Wonmi","middleName":"","lastName":"Lee","suffix":""},{"id":190630126,"identity":"eb062fba-f8b6-4fd0-b459-fa48ff587c78","order_by":1,"name":"Taegyun Yu","email":"","orcid":"","institution":"Korea Institute of Energy 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