Advanced Li-Ion Battery Balancing Solution Using Commercial Off-The-Shelf Components for MicroSatellites

Advanced Li-Ion Battery Balancing Solution Using Commercial Off-The-Shelf Components for MicroSatellites | 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 Research Article Advanced Li-Ion Battery Balancing Solution Using Commercial Off-The-Shelf Components for MicroSatellites Reza Amjadifard, Bahram Pouralibaba, Vali Talebzadeh This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6664458/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Li-Ion batteries have become essential for space missions as secondary powersources due to their high performance and power density over the past twodecades. However, variations in cells’ characteristics of a battery pack can leadto reduced overall capacity over time. To address this issue, various battery balancingmethods have been developed to extend battery life. This article presentsa space-qualified passive battery balancer that utilizes commercial off-the-shelf (COTS) components. Its design is particularly suited for space applications,emphasizing low power consumption, high efficiency, and tolerating harsh spaceradiation environment. A battery pack incorporating the proposed passive cellbalancer has been successfully deployed in a microsatellite recently launched intolow Earth orbit (LEO). The satellite’s housekeeping data demonstrate the effectivenessof the balancer, maintaining cell voltages within specified limits up toone year after launch. Notably, the suggested balancer can reduce the state ofcharge (SOC) by 1% per orbit, contributing to enhanced battery longevity. Li-ion Battery Cell Balancer Passive balancing Commercial off-the-Shelf space qualified battery Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted 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. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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-6664458","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":464571759,"identity":"c0da248b-df73-4d91-af90-1829c7bff6e9","order_by":0,"name":"Reza Amjadifard","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA90lEQVRIie2RsWoCQRCGRxZ2m4Fr5zgfYkC4KCf4KlbaCBGEVOG4ymtCah8jaVIfLNjZLwiCRay3OlJIyCRgE3DPMpD9moFhPmZ+BiAS+asQKDSVVM+XFgfGLwo2AOnmZgVAwbeS4S033VXq/WX4WPTR7I778bK8Typ19LA8XFX6jc4dbeeIOB8UC7ajTaMHBLwKxABRtMUJzHS24IYlRS5ZpgHFtI4+LWJy0tmQS1FM26Fg7tK1KCRbgJUo2LFF4YNLnyULndToiS2TxRVNQ4qp3/bUFhNMZj33cS45qetX78/XFfkIKPrdgYDwQ893DEQikcg/5wviqEBSjFJzfAAAAABJRU5ErkJggg==","orcid":"","institution":"Satellite Research Institute, Iranian Space Research Center","correspondingAuthor":true,"prefix":"","firstName":"Reza","middleName":"","lastName":"Amjadifard","suffix":""},{"id":464571762,"identity":"c0b7abf0-659c-412d-af0a-af377916eaf1","order_by":1,"name":"Bahram Pouralibaba","email":"","orcid":"","institution":"Satellite Research Institute, Iranian Space Research Center","correspondingAuthor":false,"prefix":"","firstName":"Bahram","middleName":"","lastName":"Pouralibaba","suffix":""},{"id":464571763,"identity":"b660a4c7-4e19-43e4-93d8-cdb2b1aae83e","order_by":2,"name":"Vali Talebzadeh","email":"","orcid":"","institution":"Satellite Research Institute, Iranian Space Research Center","correspondingAuthor":false,"prefix":"","firstName":"Vali","middleName":"","lastName":"Talebzadeh","suffix":""}],"badges":[],"createdAt":"2025-05-14 13:08:07","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-6664458/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-6664458/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":85488535,"identity":"a02b544c-6054-4b2c-af3e-ac1831a10544","added_by":"auto","created_at":"2025-06-26 12:33:03","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1407798,"visible":true,"origin":"","legend":"","description":"","filename":"IJSTBalancer.pdf","url":"https://assets-eu.researchsquare.com/files/rs-6664458/v1_covered_e1f5e66a-2ba6-414f-9785-28efc31990a5.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":" Advanced Li-Ion Battery Balancing Solution Using Commercial Off-The-Shelf Components for MicroSatellites","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Li-ion Battery, Cell Balancer, Passive balancing, Commercial off-the-Shelf, space qualified battery","lastPublishedDoi":"10.21203/rs.3.rs-6664458/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-6664458/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"Li-Ion batteries have become essential for space missions as secondary powersources due to their high performance and power density over the past twodecades. 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