Ahoj Jacku, tam v Los Angeles, kde jsou dopravn\u00ed z\u00e1cpy s Teslami v podstat\u011b ka\u017edodenn\u00ed p\u0159ipom\u00ednkou toho, \u017ee revoluce elektromobil\u016f je tady a slunce neust\u00e1le zvy\u0161uje popt\u00e1vku po energii. V oblasti bateri\u00ed se pohybuji u\u017e 32 let - za\u010d\u00ednal jsem jako mlad\u00fd in\u017een\u00fdr v laborato\u0159i lithiov\u00fdch \u010dl\u00e1nk\u016f v Nevad\u011b v 90. letech, pak jsem pro\u0161el giga tov\u00e1rnami v \u010c\u00edn\u011b, testovac\u00edmi za\u0159\u00edzen\u00edmi v N\u011bmecku a nyn\u00ed poskytuji konzultace v\u0161em, od v\u00fdrobc\u016f automobil\u016f a\u017e po lidi z oblasti ukl\u00e1d\u00e1n\u00ed energie do s\u00edt\u011b. A jestli existuje technologie, kter\u00e1 m\u011b zaujala ze v\u0161eho nejv\u00edc, jsou to iontov\u00e9 lithiov\u00e9 baterie. Tohle nejsou olov\u011bn\u00e9 baterie va\u0161ich d\u011bde\u010dk\u016f. Jsou to elegantn\u00ed vysokonap\u011b\u0165ov\u00e9 bestie, kter\u00e9 maj\u00ed \u0161\u00edlenou hustotu energie, nab\u00edjej\u00ed se jako blesk a v tichosti nap\u00e1jej\u00ed v\u0161e od telefonu a\u017e po rozvodnou s\u00ed\u0165. V tomto \u010dl\u00e1nku je rozeberu od z\u00e1kladu: co to sakra jsou, jak je stav\u00edme, kde dominuj\u00ed, a p\u00e1r tip\u016f z praxe bez jak\u00fdchkoli probl\u00e9m\u016f. Sna\u017e\u00edme se o sladkou te\u010dku v podob\u011b 800 slov p\u0159\u00edmo z testovac\u00edho stolu.<\/p>\n
<\/p>\n
Nejprve si vyjasn\u011bme situaci: \u201cIontov\u00e1 lithiov\u00e1 baterie\u201d je v podstat\u011b zkratka pro lithium-iontov\u00e9 baterie, kde se ionty lithia (Li+) pohybuj\u00ed tam a zp\u011bt mezi elektrodami jako mal\u00ed nabit\u00ed poslov\u00e9. N\u00e1zev je odvozen od elektrolytu - obvykle kapaln\u00e9ho organick\u00e9ho rozpou\u0161t\u011bdla se solemi lithia - kter\u00fd umo\u017e\u0148uje voln\u00fd pohyb t\u011bchto iont\u016f. Z\u00e1kladem je anoda (grafit nebo k\u0159em\u00edk) a katoda (oxidy kov\u016f lithia jako NMC nebo LFP). Separ\u00e1tor je por\u00e9zn\u00ed membr\u00e1na, kter\u00e1 zabra\u0148uje zkratov\u00e1n\u00ed elektrod a z\u00e1rove\u0148 propou\u0161t\u00ed ionty. Jde o vratnou interkalaci: ionty lithia vklouznou do anody b\u011bhem nab\u00edjen\u00ed a vysko\u010d\u00ed ven b\u011bhem vyb\u00edjen\u00ed. Vzpom\u00edn\u00e1m si na sv\u00e9 prvn\u00ed rozebr\u00e1n\u00ed \u010dl\u00e1nku v roce 1992 - Sony 18650 byl zjeven\u00edm. Dne\u0161n\u00ed \u010dl\u00e1nky dosahuj\u00ed 300 Wh\/kg, co\u017e je mnohem v\u00edc, ne\u017e jsme si vysnili.<\/p>\n
Stavba t\u011bchto v\u011bc\u00ed je symfoni\u00ed p\u0159esnosti a nebezpe\u010d\u00ed. Za\u010d\u00edn\u00e1 se v such\u00e9 m\u00edstnosti - vlhkost pod 1%, proto\u017ee voda ni\u010d\u00ed chemii. Katodov\u00e9 materi\u00e1ly se sm\u00edchaj\u00ed s pojivy a rozpou\u0161t\u011bdly, nanesou se na hlin\u00edkovou f\u00f3lii a pak se kalandruj\u00ed na plocho. Anody se nan\u00e1\u0161ej\u00ed na m\u011b\u010f. \u017delatinov\u00fd v\u00e1lec nebo stohovan\u00fd s\u00e1\u010dek se navine nebo navrstv\u00ed, vst\u0159\u00edkne se elektrolyt a uzav\u0159e se v kovov\u00e9 plechovce nebo m\u011bkk\u00e9m s\u00e1\u010dku. Vytv\u00e1\u0159en\u00ed cykl\u016f - pomal\u00e9 nab\u00edjen\u00ed za \u00fa\u010delem vytvo\u0159en\u00ed vrstvy pevn\u00e9 elektrolytov\u00e9 mezif\u00e1ze (SEI) - je m\u00edstem, kde doch\u00e1z\u00ed ke kouzlu (a poruch\u00e1m). Dohl\u00ed\u017eel jsem na linky, kde se denn\u011b vypust\u00ed 10 000 \u010dl\u00e1nk\u016f a kde se vady odhaluj\u00ed laserov\u00fdm sva\u0159ov\u00e1n\u00edm a rentgenovou kontrolou. V p\u0159\u00edpad\u011b \u0161pi\u010dkov\u00fdch iontov\u00fdch kapalin (t\u011bch fantastick\u00fdch neho\u0159lav\u00fdch elektrolyt\u016f) vym\u011b\u0148ujeme standardn\u00ed rozpou\u0161t\u011bdla za roztaven\u00e9 soli, kter\u00e9 zvy\u0161uj\u00ed bezpe\u010dnost a nap\u011b\u0165ov\u00e1 okna a\u017e na 5 V. \u0160k\u00e1lov\u00e1n\u00ed na terawatthodiny? To je hra gigafactory - roboti, vid\u011bn\u00ed s um\u011blou inteligenc\u00ed a nulov\u00e9 z\u00e1vady.<\/p>\n
Co d\u011bl\u00e1 iontov\u00e9 lithiov\u00e9 baterie kr\u00e1lem? Hustota energie, pro za\u010d\u00e1tek a\u017e 700 Wh\/L v pouzdrov\u00fdch \u010dl\u00e1nc\u00edch. \u017divotnost cyklu? Varianty LFP dosahuj\u00ed v\u00edce ne\u017e 6 000 cykl\u016f p\u0159i kapacit\u011b 80%, co\u017e je ide\u00e1ln\u00ed pro stacion\u00e1rn\u00ed \u00falo\u017ei\u0161t\u011b. Rychl\u00e9 nab\u00edjen\u00ed: 80% za 15 minut s k\u0159em\u00edkov\u00fdmi anodami a pokro\u010dil\u00fdmi elektrolyty. Pracuj\u00ed p\u0159i teplot\u00e1ch od -30 \u00b0C do 60 \u00b0C, i kdy\u017e rozsah zab\u00edj\u00ed za studena. Bezpe\u010dnost se zlep\u0161ila velk\u00fdm \u010dasem - keramikou pota\u017een\u00e9 separ\u00e1tory a neho\u0159lav\u00e9 p\u0159\u00edsady znamenaj\u00ed m\u00e9n\u011b tepeln\u00fdch \u00fanik\u016f. V m\u00fdch testech p\u0159e\u017eil dob\u0159e navr\u017een\u00fd bal\u00ed\u010dek i prop\u00edchnut\u00ed h\u0159eb\u00edkem, ani\u017e by explodoval. Nev\u00fdhody? N\u00e1klady - surov\u00e9 materi\u00e1ly jako nikl a kobalt jsou nest\u00e1l\u00e9. A r\u016fst dendrit\u016f v kovov\u00fdch variant\u00e1ch lithia m\u016f\u017ee zp\u016fsobit zkrat \u010dl\u00e1nk\u016f. Iontov\u00e9 lithium v pevn\u00e9 f\u00e1zi (s keramick\u00fdmi elektrolyty) v\u0161ak tuto mezeru zmen\u0161uje.<\/p>\n
Aplikac\u00ed p\u0159ib\u00fdv\u00e1. Na plak\u00e1t\u011b jsou elektromobily: 100 kWh akumul\u00e1tor v cybertrucku ujede p\u0159es 300 km, p\u0159i\u010dem\u017e iontov\u00e9 lithiov\u00e9 \u010dl\u00e1nky umo\u017e\u0148uj\u00ed 800V architekturu pro rychlej\u0161\u00ed nab\u00edjen\u00ed. Konzultoval jsem vozov\u00fd park v Kalifornii, kde baterie LFP sn\u00ed\u017eily n\u00e1klady 40% a vydr\u017eely po celou dobu z\u00e1ruky. S\u00ed\u0165ov\u00e9 \u00falo\u017ei\u0161t\u011b? Megapacky od Tesly je vyu\u017e\u00edvaj\u00ed k vyrovn\u00e1v\u00e1n\u00ed obnoviteln\u00fdch zdroj\u016f energie - v jedn\u00e9 lokalit\u011b v Arizon\u011b, kterou jsem nav\u0161t\u00edvil, se ukl\u00e1dalo 100 MWh, \u010d\u00edm\u017e se vyrovn\u00e1valy v\u00fdpadky sol\u00e1rn\u00ed energie. Spot\u0159ebn\u00ed elektronika: va\u0161e sluch\u00e1tka AirPods a notebooky b\u011b\u017e\u00ed na mal\u00fdch \u010dl\u00e1nc\u00edch 21700. Letectv\u00ed a kosmonautika? Drony a satelity pou\u017e\u00edvaj\u00ed vysokoenergetick\u00e9 varianty. Dokonce i l\u00e9ka\u0159stv\u00ed: implantovateln\u00e9 defibril\u00e1tory spol\u00e9haj\u00ed na spolehliv\u00e9 iontov\u00e9 lithium. Divok\u00e1 jedna- v\u011btrn\u00e1 farma na mo\u0159i v Severn\u00edm mo\u0159i je pou\u017e\u00edv\u00e1 v z\u00e1lo\u017en\u00edch syst\u00e9mech, kter\u00e9 p\u0159e\u017eij\u00ed slanou mlhu a bou\u0159e.<\/p>\n
Pro\u010d iontov\u00e9 lithium m\u00edsto nikl-metal hydridu nebo olov\u011bn\u00e9ho akumul\u00e1toru? Jednodu\u0161e: 3x v\u00edce energie, 10x v\u00edce cykl\u016f a polovi\u010dn\u00ed hmotnost. NMH je bezpe\u010dn\u011bj\u0161\u00ed, ale t\u011b\u017e\u0161\u00ed; olovnat\u00fd je levn\u00fd, ale toxick\u00fd a m\u00e1 kr\u00e1tkou \u017eivotnost. Sodium-iontov\u00fd syst\u00e9m je na cest\u011b k levn\u00e9mu skladov\u00e1n\u00ed, ale iontov\u00e9 lithium v\u00edt\u011bz\u00ed z hlediska v\u00fdkonu. P\u0159i ned\u00e1vn\u00e9m testov\u00e1n\u00ed elektromobilu, kter\u00e9 jsem prov\u00e1d\u011bl pro jeden startup, v\u00e1\u017eil iontov\u011b lithiov\u00fd akumul\u00e1tor o 40% m\u00e9n\u011b ne\u017e star\u00fd NiMH, co\u017e zv\u00fd\u0161ilo dojezd o 150 mil. Z ekologick\u00e9ho hlediska dosahuje m\u00edra recyklace v Evrop\u011b 95%, p\u0159i\u010dem\u017e v \u010dele stoj\u00ed LFP bez kobaltu.<\/p>\n
V\u00fdb\u011br toho spr\u00e1vn\u00e9ho: Zjist\u011bte, jak\u00fd je v\u00e1\u0161 p\u0159\u00edpad pou\u017eit\u00ed. Vysok\u00fd v\u00fdkon? NCA pro zrychlen\u00ed. Dlouh\u00e1 \u017eivotnost? LFP pro autobusy a dom\u00e1c\u00ed \u00falo\u017ei\u0161t\u011b. Extr\u00e9mn\u00ed chlad? Aditiva nebo oh\u0159\u00edva\u010de. V\u017edy specifikujte u CATL, Panasonic nebo LG - maj\u00ed k dispozici data. Testujte bal\u00ed\u010dky ve sv\u00e9m prost\u0159ed\u00ed: prov\u00e1d\u011bjte cykly p\u0159i 45 \u00b0C a sledujte, zda nedoch\u00e1z\u00ed k bobtn\u00e1n\u00ed. Profesion\u00e1ln\u00ed tip: vyva\u017eujte \u010dl\u00e1nky pomoc\u00ed BMS, kter\u00e1 monitoruje ka\u017ed\u00e9 nap\u011bt\u00ed - nevyv\u00e1\u017een\u00e9 bal\u00ed\u010dky jsou smrteln\u00e9.<\/p>\n
\u00dadr\u017eba? Pro u\u017eivatele minim\u00e1ln\u00ed, ale profesion\u00e1lov\u00e9 jako j\u00e1 ka\u017edoro\u010dn\u011b kontroluj\u00ed impedanci a kapacitu. Divok\u00e1 budoucnost: pevnol\u00e1tkov\u00e9 iontov\u00e9 lithium se sulfidov\u00fdmi nebo oxidov\u00fdmi elektrolyty slibuje 500 Wh\/kg a \u017e\u00e1dn\u00e9 riziko po\u017e\u00e1ru. Kvantov\u00e9 te\u010dky v anod\u00e1ch? Grafenov\u00e9 hybridy? Mluv\u00edme o desetiminutov\u00e9m nab\u00edjen\u00ed a dojezdu 1000 km. D\u00edky tomu, \u017ee IRA tla\u010d\u00ed na v\u00fdrobu v USA, vznikaj\u00ed ve va\u0161em okol\u00ed gigafactory v Nevad\u011b a Texasu.<\/p>\n
Se\u010dteno a podtr\u017eeno, Jacku: iontov\u00e9 lithiov\u00e9 baterie nejsou jen zdrojem energie - jsou jiskrou, kter\u00e1 elektrizuje planetu. Prom\u011bnily m\u00e9 n\u00e1pady typu \u201cco by kdyby\u201d v re\u00e1ln\u00e1 v\u00edt\u011bzstv\u00ed, od rozmachu elektromobil\u016f v Los Angeles a\u017e po glob\u00e1ln\u00ed s\u00edt\u011b. Pokud si l\u00e1mete hlavu s projektem nebo roz\u0161i\u0159ujete vozov\u00fd park, tyto baterie jsou pro v\u00e1s jako stvo\u0159en\u00e9. Jsou prost\u011b st\u00e1le v\u00fdkonn\u00e9, tich\u00e9 a v\u00fdkonn\u00e9. M\u00e1te specifikace sady, kterou stav\u00edte? Napi\u0161te mi - pravd\u011bpodobn\u011b jsem testoval n\u011bco \u0161\u00edlen\u011bj\u0161\u00edho.<\/p>","protected":false},"excerpt":{"rendered":"
Ionic Lithium Battery: The High-Energy Rebels That Are Rewiring the World Hey Jack, out there in LA where the Tesla traffic jams are basically a daily reminder that the EV revolution is here, and the sun\u2019s always cranking up the demand for power. I\u2019ve been deep in the battery game for 32 years now\u2014started out […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-33","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ioniclithiumbattery.com\/cs\/wp-json\/wp\/v2\/posts\/33","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ioniclithiumbattery.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ioniclithiumbattery.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ioniclithiumbattery.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ioniclithiumbattery.com\/cs\/wp-json\/wp\/v2\/comments?post=33"}],"version-history":[{"count":2,"href":"https:\/\/ioniclithiumbattery.com\/cs\/wp-json\/wp\/v2\/posts\/33\/revisions"}],"predecessor-version":[{"id":36,"href":"https:\/\/ioniclithiumbattery.com\/cs\/wp-json\/wp\/v2\/posts\/33\/revisions\/36"}],"wp:attachment":[{"href":"https:\/\/ioniclithiumbattery.com\/cs\/wp-json\/wp\/v2\/media?parent=33"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ioniclithiumbattery.com\/cs\/wp-json\/wp\/v2\/categories?post=33"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ioniclithiumbattery.com\/cs\/wp-json\/wp\/v2\/tags?post=33"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}