{"id":1020,"date":"2025-05-16T18:04:42","date_gmt":"2025-05-16T16:04:42","guid":{"rendered":"https:\/\/www.fixmajster.sk\/?p=1020"},"modified":"2025-05-16T18:04:43","modified_gmt":"2025-05-16T16:04:43","slug":"bateria-mensia-nez-milimeter","status":"publish","type":"post","link":"https:\/\/www.fixmajster.sk\/index.php\/2025\/05\/16\/bateria-mensia-nez-milimeter\/","title":{"rendered":"Bat\u00e9ria men\u0161ia ne\u017e milimeter"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Mikrojadrov\u00e9 bat\u00e9rie vyu\u017e\u00edvaj\u00fa energiu z r\u00e1dioakt\u00edvneho rozpadu. Napr\u00edklad mar\u0165ansk\u00e9 vozidlo Curiosity premie\u0148a rozpad plut\u00f3nia-238 na teplo, ktor\u00e9 sa n\u00e1sledne men\u00ed na elektrinu s v\u00fdkonom 110 wattov. Vedci sa v\u0161ak zameriavaj\u00fa aj na v\u00fdvoj miniat\u00farnych verzi\u00ed t\u00fdchto bat\u00e9ri\u00ed, ktor\u00e9 generuj\u00fa len mikro- alebo nanowatty.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdskumn\u00fd t\u00edm z Univerzity Su-\u010dou v \u010c\u00edne zefekt\u00edvnil tak\u00fato mikrobat\u00e9riu pou\u017eit\u00edm prvku amer\u00edcium. Na rozdiel od klasick\u00fdch jadrov\u00fdch bat\u00e9ri\u00ed nevyu\u017e\u00edva teplo, ale sveteln\u00e9 \u017eiarenie. Amer\u00edcium pri rozpade vy\u017earuje alfa \u010dastice a z\u00e1rove\u0148 zeleno svieti. Hoci alfa \u010dastice r\u00fdchlo str\u00e1caj\u00fa energiu, vedcom sa ich podarilo zakomponova\u0165 do polym\u00e9rov\u00e9ho kry\u0161t\u00e1lu a prepoji\u0165 s fotovoltaick\u00fdm \u010dl\u00e1nkom, ktor\u00fd premie\u0148a svetlo na elektrinu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cel\u00e9 zariadenie je tak\u00e9 mal\u00e9, \u017ee sa zmest\u00ed do krem\u00edkov\u00e9ho komponentu men\u0161ieho ne\u017e 1 mm. Testy uk\u00e1zali, \u017ee jeho \u00fa\u010dinnos\u0165 bola 8 000-kr\u00e1t vy\u0161\u0161ia ako pri predch\u00e1dzaj\u00facich verzi\u00e1ch. Hoci amer\u00edcium m\u00e1 dlh\u00fd pol\u010das rozpadu \u2013 a\u017e 7 380 rokov \u2013 zvy\u0161n\u00e9 s\u00fa\u010dasti bat\u00e9rie podliehaj\u00fa opotrebeniu vplyvom \u017eiarenia. Napriek tomu by tieto mikrobat\u00e9rie mohli fungova\u0165 nieko\u013eko desiatok rokov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na nap\u00e1janie jednej 60-wattovej \u017eiarovky by bolo treba pribli\u017ene 40 mili\u00e1rd tak\u00fdchto bat\u00e9ri\u00ed. V\u00e4\u010d\u0161ina elektronick\u00fdch zariaden\u00ed v\u0161ak potrebuje omnoho menej energie. Bat\u00e9ria vo ve\u013ekosti mince by tak mohla sta\u010di\u0165 napr\u00edklad na nap\u00e1janie nosite\u013enej techniky alebo kardiostimul\u00e1torov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zdroj: Quark<\/p>\n","protected":false},"excerpt":{"rendered":"<p class=\"tx-excerpt\">Mikrojadrov\u00e9 bat\u00e9rie vyu\u017e\u00edvaj\u00fa energiu z r\u00e1dioakt\u00edvneho rozpadu. Napr\u00edklad mar\u0165ansk\u00e9 vozidlo Curiosity premie\u0148a rozpad plut\u00f3nia-238 na teplo, ktor\u00e9 sa n\u00e1sledne men\u00ed na elektrinu s v\u00fdkonom 110 wattov. Vedci sa v\u0161ak zameriavaj\u00fa aj na v\u00fdvoj","protected":false},"author":3,"featured_media":1021,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[24,25,27,26],"class_list":["post-1020","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nezaradene","tag-bateria","tag-mikro","tag-mikrobateria","tag-milimeter"],"_links":{"self":[{"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/posts\/1020","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/comments?post=1020"}],"version-history":[{"count":1,"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/posts\/1020\/revisions"}],"predecessor-version":[{"id":1022,"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/posts\/1020\/revisions\/1022"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/media\/1021"}],"wp:attachment":[{"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/media?parent=1020"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/categories?post=1020"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fixmajster.sk\/index.php\/wp-json\/wp\/v2\/tags?post=1020"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}