{"id":4231,"date":"2022-02-19T11:51:07","date_gmt":"2022-02-19T11:51:07","guid":{"rendered":"https:\/\/www.ahotech.com\/?p=4231"},"modified":"2022-02-19T12:35:34","modified_gmt":"2022-02-19T12:35:34","slug":"kan-litiumbatterier-genoplades","status":"publish","type":"post","link":"https:\/\/www.ahotech.com\/da\/2022\/02\/can-lithium-batteries-be-recharged\/","title":{"rendered":"Kan litiumbatterier genoplades"},"content":{"rendered":"

Genopladelige lithiumbatterier er sekund\u00e6re batterier (genopladelige batterier), der er afh\u00e6ngige af lithiumioner, der bev\u00e6ger sig mellem positive og negative elektroder. Under opladnings- og afladningsprocessen indlejres og aflejres Li+ frem og tilbage mellem de to elektroder: Ved opladning aflejres Li+ fra den positive elektrode og indlejres i den negative elektrode gennem elektrolytten, som er i en lithiumrig tilstand; det modsatte g\u00e6lder ved afladning.<\/p>\n\n\n\n

\"AGV-battericelle\"<\/figure>\n\n\n\n

Lithiumbatterier har h\u00f8j energit\u00e6thed og h\u00f8j gennemsnitlig udgangssp\u00e6nding. Selvafladende, lille, godt batteri, under 2% pr. m\u00e5ned (genopretteligt). Ingen memory-effekt. Bredt driftstemperaturomr\u00e5de fra -20\u2103 ~ 60\u2103. Fremragende cyklusydelse, hurtig opladning og afladning, opladningseffektivitet p\u00e5 op til 100% og stor udgangseffekt. Lang levetid. Det indeholder ikke giftige og skadelige stoffer og kaldes et gr\u00f8nt batteri.<\/p>\n\n\n\n

Den generelle ladestr\u00f8m for litiumbatterier er indstillet til mellem 0,2\u00b0C og 1\u00b0C. Jo st\u00f8rre str\u00f8m, desto hurtigere opladning, og desto mere opvarmes batteriet. Desuden kan for meget str\u00f8m ikke oplades til fuld kapacitet, fordi de elektrokemiske reaktioner inde i cellen tager tid. Ligesom n\u00e5r man h\u00e6lder \u00f8l op, vil man blive skummende og utilfreds, hvis man h\u00e6lder det op for hurtigt.<\/p>\n\n\n\n

\"genopladelige<\/figure>\n\n\n\n

Normal brug af et batteri er afladningsprocessen. Bem\u00e6rk f\u00f8lgende punkter ved afladning af litiumbatterier, f.eks. 3,7V lithium-ion-batterier<\/a>:<\/p>\n\n\n\n

For det f\u00f8rste b\u00f8r afladningsstr\u00f8mmen ikke v\u00e6re for stor, da for h\u00f8j str\u00f8m kan for\u00e5rsage varme inde i batteriet, hvilket kan for\u00e5rsage permanent skade. P\u00e5 telefonen er dette ikke et problem, kan ikke overvejes.<\/p>\n\n\n\n

For det andet kan de ikke overaflades. Lithiumbatteriers interne lagring af elektrisk energi opn\u00e5s ved elektrokemiske reversible kemiske \u00e6ndringer. Overdreven afladning vil f\u00f8re til, at denne kemiske \u00e6ndring opst\u00e5r, og en irreversibel reaktion opst\u00e5r. Derfor er lithiumbatterier mest bange for overafladelse. N\u00e5r afladningssp\u00e6ndingen er lavere end 2,7 V, kan det f\u00f8re til, at batteriet skrotes. Heldigvis er mobiltelefonbatterier allerede udstyret med beskyttelseskredsl\u00f8b. Hvis sp\u00e6ndingen ikke er lav nok til at beskadige batteriet, vil beskyttelseskredsl\u00f8bet fungere og stoppe afladningen.<\/p>","protected":false},"excerpt":{"rendered":"

Rechargeable lithium batteries are secondary batteries (rechargeable batteries) that rely on lithium ions moving between positive and negative electrodes. During the charging and discharging process, Li+ is embedded and de-embedded back and forth between the two electrodes: When charging, Li+ is de-embedded from the positive electrode, and embedded into the negative electrode through the electrolyte, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","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":[1],"tags":[],"class_list":["post-4231","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"yoast_head":"\ncan lithium batteries be recharged - Ahotech.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ahotech.com\/da\/2022\/02\/kan-litiumbatterier-genoplades\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"can lithium batteries be recharged - Ahotech.com\" \/>\n<meta property=\"og:description\" content=\"Rechargeable lithium batteries are secondary batteries (rechargeable batteries) that rely on lithium ions moving between positive and negative electrodes. 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