{"id":5175,"date":"2026-05-10T08:14:18","date_gmt":"2026-05-10T08:14:18","guid":{"rendered":"https:\/\/www.kmdpower.com\/?p=5175"},"modified":"2026-05-10T08:14:20","modified_gmt":"2026-05-10T08:14:20","slug":"can-sodium-ion-batteries-be-connected-in-parallel-with-lifepo4-systems","status":"publish","type":"post","link":"https:\/\/www.kmdpower.com\/cs\/news\/can-sodium-ion-batteries-be-connected-in-parallel-with-lifepo4-systems\/","title":{"rendered":"Lze sod\u00edkov\u00e9 baterie zapojit paraleln\u011b se syst\u00e9my LiFePO4?"},"content":{"rendered":"

\"Mohu k baterii LiFePO4 p\u0159idat paraleln\u011b sod\u00edkovou baterii?\"<\/em><\/p>

Tato ot\u00e1zka je \u010dast\u00e1 u obytn\u00fdch voz\u016f, off-grid, n\u00e1mo\u0159n\u00edch, z\u00e1lo\u017en\u00edch a chladn\u00fdch syst\u00e9m\u016f. Zn\u00ed to efektivn\u011b: ponechat si st\u00e1vaj\u00edc\u00ed banku LiFePO4, p\u0159idat sod\u00edkov\u00e9 ionty pro v\u011bt\u0161\u00ed kapacitu nebo lep\u0161\u00ed v\u00fdkon p\u0159i n\u00edzk\u00fdch teplot\u00e1ch a vyhnout se p\u0159estavb\u011b syst\u00e9mu.<\/p>

Baterie v\u0161ak nejsou obecn\u00e9 12V krabi\u010dky. Sod\u00edkov\u00e9 baterie by nem\u011bly b\u00fdt p\u0159\u00edmo hard-paraleln\u00ed s Baterie LiFePO4<\/a><\/strong>. I kdy\u017e jsou ob\u011b ozna\u010deny 12 V, jejich nap\u011b\u0165ov\u00e1 okna, vyb\u00edjec\u00ed k\u0159ivky, chov\u00e1n\u00ed p\u0159i nab\u00edjen\u00ed, vnit\u0159n\u00ed odpor a limity BMS se mohou li\u0161it. Mohou koexistovat v jednom projektu, ale pouze s \u0159\u00e1dn\u00fdm odd\u011blen\u00edm, jako je konverze DC-DC, izolovan\u00e9 nab\u00edjec\u00ed cesty nebo \u0159\u00edzen\u00e9 \u0159\u00edzen\u00ed kombinac\u00ed zdroj\u016f.<\/p>

\"\"<\/figure>

Kamada Power 12V 100Ah sod\u00edkoiontov\u00e1 baterie<\/a><\/strong><\/p>

Obvykle ne pro p\u0159\u00edm\u00e9 paraleln\u00ed p\u0159ipojen\u00ed<\/h2>

Mnoho kupuj\u00edc\u00edch vid\u00ed na \u0161t\u00edtc\u00edch obou bateri\u00ed n\u00e1pis \"12V\" a p\u0159edpokl\u00e1d\u00e1, \u017ee baterie jsou zam\u011bniteln\u00e9. Tento p\u0159edpoklad je riskantn\u00ed.<\/p>

12V baterie LiFePO4 a 12V sod\u00edkovo-iontov\u00e1 baterie mohou m\u00edt r\u016fzn\u00e1 jmenovit\u00e1 nap\u011bt\u00ed, klidov\u00e1 nap\u011bt\u00ed, horn\u00ed meze nab\u00edjen\u00ed, mezn\u00ed hodnoty n\u00edzk\u00e9ho nap\u011bt\u00ed, teplotn\u00ed limity a logiku BMS. Mnoho 12V LiFePO4 bateri\u00ed je postaveno na 12,8V jmenovit\u00e9 platform\u011b. Sou\u010dasn\u00e9 12V sod\u00edko-iontov\u00e9 produkty jsou m\u00e9n\u011b jednotn\u00e9. N\u011bkter\u00e9 se bl\u00ed\u017e\u00ed nomin\u00e1ln\u00edmu nap\u011bt\u00ed 12,0 V nebo 12,2 V, p\u0159i\u010dem\u017e jejich doporu\u010den\u00e9 nab\u00edjec\u00ed nap\u011bt\u00ed se m\u016f\u017ee li\u0161it v z\u00e1vislosti na konstrukci \u010dl\u00e1nk\u016f a konfiguraci sady.<\/p>

I kdy\u017e se tedy oba v\u00fdrobky prod\u00e1vaj\u00ed jako \"12V\", nemus\u00ed se nach\u00e1zet ve stejn\u00e9m elektrick\u00e9m okn\u011b.<\/p>

A nap\u011bt\u00ed je jen za\u010d\u00e1tek. Li\u0161it se mohou tak\u00e9 c\u00edle nab\u00edjen\u00ed, chov\u00e1n\u00ed SOC, sd\u00edlen\u00ed proudu, teplotn\u00ed odezva a prahov\u00e9 hodnoty ochrany BMS. Sd\u00edlen\u00e1 stejnosm\u011brn\u00e1 sb\u011brnice tyto rozd\u00edly neodstran\u00ed. Vnucuje je do stejn\u00e9ho obvodu.<\/p>

Kl\u00ed\u010dov\u00fd rozd\u00edl je n\u00e1sleduj\u00edc\u00ed: Pou\u017eit\u00ed obou chemik\u00e1li\u00ed v jednom syst\u00e9mu nen\u00ed tot\u00e9\u017e jako jejich p\u0159\u00edm\u00e9 paraleln\u00ed spojen\u00ed do jedn\u00e9 ne\u0159\u00edzen\u00e9 bateriov\u00e9 banky.<\/strong><\/p>

Ob\u011b chemick\u00e9 technologie mohou existovat sou\u010dasn\u011b, pokud m\u00e1 ka\u017ed\u00e1 banka svou vlastn\u00ed \u0159\u00edzenou cestu. Probl\u00e9my zp\u016fsobuje jednoduch\u00e1 verze: kladn\u00e1-pozitivn\u00ed, z\u00e1porn\u00e1-z\u00e1porn\u00e1, a pak o\u010dek\u00e1v\u00e1n\u00ed, \u017ee jedna nab\u00edje\u010dka a jeden m\u011bni\u010d budou s ob\u011bma bateriemi zach\u00e1zet, jako by \u0161lo o stejnou rodinu.<\/p>

Pro\u010d se sod\u00edkov\u00e9 ionty a LiFePO4 nechovaj\u00ed stejn\u011b<\/h2>

Prvn\u00edm probl\u00e9mem je jmenovit\u00e9 nap\u011bt\u00ed. P\u0159i pevn\u00e9m paraleln\u00edm zapojen\u00ed m\u016f\u017ee baterie s vy\u0161\u0161\u00edm nap\u011bt\u00edm tla\u010dit proud do baterie s ni\u017e\u0161\u00edm nap\u011bt\u00edm je\u0161t\u011b p\u0159edt\u00edm, ne\u017e je pou\u017eita jak\u00e1koli u\u017eite\u010dn\u00e1 z\u00e1t\u011b\u017e. Tento vyrovn\u00e1vac\u00ed proud syst\u00e9m nenap\u00e1j\u00ed. Pouze zvy\u0161uje nap\u011bt\u00ed, teplo a ztr\u00e1ty.<\/p>

Velikost tohoto p\u0159\u00ed\u010dn\u00e9ho proudu nen\u00ed ur\u010dena pouze rozd\u00edlem nap\u011bt\u00ed. Z\u00e1le\u017e\u00ed na odporu kabel\u016f, odporu kontakt\u016f, SOC balen\u00ed, symetrii p\u0159ipojen\u00ed, chov\u00e1n\u00ed pojistek a reakci BMS. Proto m\u016f\u017ee paraleln\u00ed syst\u00e9m se sm\u00ed\u0161enou chemi\u00ed vypadat na pap\u00ed\u0159e p\u0159ijateln\u011b, ale v ter\u00e9nu se chov\u00e1 nep\u0159edv\u00eddateln\u011b.<\/p>

Druh\u00fdm probl\u00e9mem je vyb\u00edjec\u00ed k\u0159ivka. LiFePO4 je zn\u00e1m\u00fd velmi plochou nap\u011b\u0165ovou plo\u0161inou po v\u011bt\u0161inu sv\u00e9 vyu\u017eiteln\u00e9 kapacity. Chov\u00e1n\u00ed sod\u00edkov\u00fdch iont\u016f z\u00e1vis\u00ed na konkr\u00e9tn\u00ed chemii a konstrukci balen\u00ed, ale mnoho sou\u010dasn\u00fdch v\u00fdrobk\u016f vykazuje viditeln\u011bj\u0161\u00ed sklon nap\u011bt\u00ed nap\u0159\u00ed\u010d SOC.<\/p>

Zjednodu\u0161en\u011b \u0159e\u010deno, ob\u011b baterie \"neukazuj\u00ed\" zb\u00fdvaj\u00edc\u00ed energii stejn\u00fdm zp\u016fsobem. Jedna z nich m\u016f\u017ee dr\u017eet nap\u011bt\u00ed d\u00e9le. Druh\u00e1 m\u016f\u017ee vykazovat pozvoln\u011bj\u0161\u00ed zm\u011bnu nap\u011bt\u00ed. To ovliv\u0148uje sd\u00edlen\u00ed proudu, interpretaci SOC a zp\u016fsob, jak\u00fdm st\u0159\u00edda\u010d nebo nab\u00edje\u010dka interpretuje celou baterii.<\/p>

T\u0159et\u00edm probl\u00e9mem je nab\u00edjec\u00ed okno. Nab\u00edjec\u00ed profil, kter\u00fd dob\u0159e funguje pro LiFePO4, nemus\u00ed pln\u011b nab\u00edt sod\u00edko-iontov\u00fd akumul\u00e1tor ur\u010den\u00fd pro vy\u0161\u0161\u00ed horn\u00ed nap\u011bt\u00ed. Na druhou stranu sod\u00edkovo-iontov\u00fd profil, kter\u00fd je vhodn\u00fd pro jeden v\u00fdrobek, m\u016f\u017ee b\u00fdt nevhodn\u00fd pro banku LiFePO4 nebo pro jinou sod\u00edkovo-iontovou konstrukci.<\/p>

To nemus\u00ed v\u017edy znamenat okam\u017eit\u00e9 selh\u00e1n\u00ed. V mnoha p\u0159\u00edpadech je v\u00fdsledek subtiln\u011bj\u0161\u00ed: jedna baterie je nedostate\u010dn\u011b nabit\u00e1, jedna baterie je pod nap\u011bt\u00edm nebo se jedna BMS odpoj\u00ed d\u0159\u00edve, ne\u017e se o\u010dek\u00e1valo. M\u016f\u017ee se zd\u00e1t, \u017ee syst\u00e9m n\u011bjakou dobu funguje, a pr\u00e1v\u011b proto m\u016f\u017ee tato konstrukce u\u017eivatele klamat.<\/p>

Parametr<\/th>Sod\u00edkov\u00e9 ionty<\/th>LiFePO4<\/th><\/tr><\/thead>
Jmenovit\u00e9 nap\u011bt\u00ed v balen\u00edch t\u0159\u00eddy 12V<\/td>Specifick\u00e9 pro dan\u00fd produkt; mnoho sou\u010dasn\u00fdch balen\u00ed m\u00e1 nap\u011bt\u00ed kolem 12,0-12,2 V.<\/td>B\u011b\u017en\u011b kolem 12,8 V<\/td><\/tr>
Absorp\u010dn\u00ed nap\u011bt\u00ed n\u00e1boje<\/td>Z\u00e1vis\u00ed na konkr\u00e9tn\u00edm produktu; n\u011bkter\u00e9 produkty pou\u017e\u00edvaj\u00ed nap\u011bt\u00ed kolem 15,6 V, zat\u00edmco jin\u00e9 pou\u017e\u00edvaj\u00ed ni\u017e\u0161\u00ed nebo jin\u00e9 horn\u00ed limity nab\u00edjen\u00ed.<\/td>B\u011b\u017en\u011b kolem 14,2-14,6 V<\/td><\/tr>
V\u00fdtokov\u00e1 k\u0159ivka<\/td>\u010casto v\u00edce sklon\u011bn\u00e9 nap\u0159\u00ed\u010d SOC<\/td>Velmi ploch\u00e9 na v\u011bt\u0161in\u011b pou\u017eiteln\u00e9 SOC<\/td><\/tr>
Nab\u00edjen\u00ed p\u0159i n\u00edzk\u00fdch teplot\u00e1ch<\/td>Vysoce specifick\u00e9 pro dan\u00fd produkt<\/td>B\u011b\u017en\u011b omezeno pod 0 \u00b0C, pokud nen\u00ed zabudov\u00e1no vyt\u00e1p\u011bn\u00ed.<\/td><\/tr>
Prahov\u00e9 hodnoty BMS<\/td>Vylad\u011bno na chemii sod\u00edkov\u00fdch iont\u016f a konstrukci balen\u00ed<\/td>Vylad\u011bno na chemii LiFePO4<\/td><\/tr>
P\u0159\u00edm\u00e1 paralela s ostatn\u00edmi chemick\u00fdmi l\u00e1tkami<\/td>Nedoporu\u010duje se<\/td>Nedoporu\u010duje se<\/td><\/tr><\/tbody><\/table><\/figure>

D\u016fle\u017eit\u00e9 nen\u00ed, \u017ee jedna chemie je lep\u0161\u00ed ne\u017e druh\u00e1. Jde o to, \u017ee nejsou p\u0159irozen\u011b slad\u011bny jako jedna paraleln\u00ed baterie.<\/p>

Co se m\u016f\u017ee pokazit, kdy\u017e je stejn\u011b p\u0159ipoj\u00edte?<\/h2>

Nej\u010dast\u011bj\u0161\u00edm probl\u00e9mem je k\u0159\u00ed\u017eov\u00fd proud. Jedna baterie tla\u010d\u00ed proud do druh\u00e9, proto\u017ee jejich nap\u011bt\u00ed nejsou v souladu. Tento proud vytv\u00e1\u0159\u00ed nap\u011bt\u00ed, ani\u017e by vykonal u\u017eite\u010dnou pr\u00e1ci.<\/p>

Dal\u0161\u00edm probl\u00e9mem je nerovnom\u011brn\u00e9 rozd\u011blen\u00ed z\u00e1t\u011b\u017ee. Jedna baterie m\u016f\u017ee n\u00e9st v\u011bt\u0161\u00ed \u010d\u00e1st z\u00e1t\u011b\u017ee m\u011bni\u010de, proto\u017ee jej\u00ed nap\u011bt\u00ed, vnit\u0159n\u00ed odpor nebo chov\u00e1n\u00ed BMS ji v danou chv\u00edli \u010din\u00ed jednodu\u0161\u0161\u00edm zdrojem. P\u0159i mal\u00e9m zat\u00ed\u017een\u00ed nemus\u00ed b\u00fdt nerovnov\u00e1ha z\u0159ejm\u00e1. P\u0159i n\u00e1razov\u00e9m zat\u00ed\u017een\u00ed, v chladn\u00fdch podm\u00ednk\u00e1ch nebo p\u0159i hlubok\u00e9m vybit\u00ed m\u016f\u017ee b\u00fdt rozd\u00edl mnohem z\u00e1va\u017en\u011bj\u0161\u00ed.<\/p>

Dal\u0161\u00edm v\u00fdznamn\u00fdm rizikem je nesoulad BMS. Ka\u017ed\u00e1 BMS je navr\u017eena na z\u00e1klad\u011b vlastn\u00edho chemick\u00e9ho slo\u017een\u00ed, prahov\u00fdch hodnot nap\u011bt\u00ed, proudov\u00fdch limit\u016f, teplotn\u00edch pravidel a logiky ochrany. Pokud se jedna baterie odpoj\u00ed d\u0159\u00edve, m\u016f\u017ee druh\u00e1 baterie n\u00e1hle p\u0159evz\u00edt plnou z\u00e1t\u011b\u017e. V syst\u00e9mu se st\u0159\u00edda\u010dem to m\u016f\u017ee zp\u016fsobit vypnut\u00ed, chybov\u00e9 k\u00f3dy nebo neo\u010dek\u00e1van\u00e9 zat\u00ed\u017een\u00ed zb\u00fdvaj\u00edc\u00ed banky.<\/p>

\u010cast\u00e1 je tak\u00e9 nekonzistentnost \u00fa\u010dtov\u00e1n\u00ed. M\u016f\u017ee se zd\u00e1t, \u017ee nab\u00edje\u010dka dokon\u010dila norm\u00e1ln\u00ed cyklus, ale jedna baterie m\u016f\u017ee b\u00fdt st\u00e1le nedostate\u010dn\u011b nabit\u00e1, zat\u00edmco druh\u00e1 je udr\u017eov\u00e1na v rozsahu nap\u011bt\u00ed, kter\u00fd nen\u00ed ide\u00e1ln\u00ed pro jej\u00ed konstrukci.<\/p>

Nakonec je tu ot\u00e1zka podpory a z\u00e1ruky. V\u011bt\u0161ina v\u00fdrobc\u016f zve\u0159ej\u0148uje n\u00e1vod na paraleln\u00ed pou\u017eit\u00ed pro shodn\u00e9 baterie, nikoliv pro sm\u00ed\u0161en\u00e9 baterie se sm\u00ed\u0161en\u00fdm chemick\u00fdm slo\u017een\u00edm. Pokud syst\u00e9m sel\u017ee, \u0159e\u0161en\u00ed probl\u00e9m\u016f se st\u00e1v\u00e1 obt\u00ed\u017en\u00fdm, proto\u017ee probl\u00e9m ji\u017e nen\u00ed pouze v baterii, nab\u00edje\u010dce nebo m\u011bni\u010di. Jde o vz\u00e1jemn\u00e9 p\u016fsoben\u00ed v\u0161ech t\u011bchto prvk\u016f.<\/p>

Odkud tato ot\u00e1zka obvykle poch\u00e1z\u00ed<\/h2>

Tato ot\u00e1zka se \u010dasto objevuje p\u0159i modernizaci obytn\u00fdch voz\u016f a dod\u00e1vek. U\u017eivatel ji\u017e m\u00e1 dom\u00e1c\u00ed banku LiFePO4 a chce lep\u0161\u00ed v\u00fdkon v chladn\u00e9m po\u010das\u00ed, ani\u017e by musel vym\u011bnit cel\u00fd syst\u00e9m.<\/p>

Objevuje se tak\u00e9 p\u0159i roz\u0161i\u0159ov\u00e1n\u00ed sol\u00e1rn\u00ed energie mimo s\u00ed\u0165. St\u00e1vaj\u00edc\u00ed syst\u00e9m LiFePO4 funguje, ale dal\u0161\u00ed dostupnou nebo atraktivn\u011bj\u0161\u00ed mo\u017enost\u00ed roz\u0161\u00ed\u0159en\u00ed je sod\u00edk-iont.<\/p>

V n\u00e1mo\u0159n\u00edch a z\u00e1lo\u017en\u00edch syst\u00e9mech pova\u017euj\u00ed n\u011bkte\u0159\u00ed u\u017eivatel\u00e9 sm\u00ed\u0161enou chemii za formu redundance. Ve skute\u010dnosti m\u016f\u017ee ne\u0159\u00edzen\u00e1 redundance nam\u00edsto zv\u00fd\u0161en\u00ed odolnosti vytvo\u0159it nov\u00e9 cesty poruch.<\/p>

Projekty modernizace OEM se pot\u00fdkaj\u00ed se stejn\u00fdm probl\u00e9mem na vy\u0161\u0161\u00ed \u00farovni. In\u017een\u00fd\u0159i mohou cht\u00edt zachovat st\u00e1vaj\u00edc\u00ed platformu LiFePO4 a z\u00e1rove\u0148 p\u0159idat sod\u00edkov\u00e9 ionty do stejn\u00e9 produktov\u00e9 \u0159ady. To lze prov\u00e9st, ale architektura mus\u00ed b\u00fdt navr\u017eena s ohledem na odd\u011blen\u00ed, \u0159\u00edzen\u00ed a p\u0159edv\u00eddateln\u00e9 chov\u00e1n\u00ed p\u0159i poru\u0161e.<\/p>

Kdy\u017e se riziko zvy\u0161uje<\/h2>

Riziko se zvy\u0161uje, pokud ob\u011b chemie sd\u00edlej\u00ed stejnou sb\u011brnici, stejnou nab\u00edje\u010dku, stejn\u00fd m\u011bni\u010d a stejn\u00e9 nastaven\u00ed. To nut\u00ed jednu \u0159\u00eddic\u00ed logiku pro dv\u011b baterie, kter\u00e9 se nechovaj\u00ed stejn\u011b.<\/p>

Probl\u00e9m je z\u00e1va\u017en\u011bj\u0161\u00ed tak\u00e9 u vysokoproud\u00fdch z\u00e1t\u011b\u017e\u00ed m\u011bni\u010d\u016f. P\u0159ep\u011b\u0165ov\u00e1 popt\u00e1vka rychle odhal\u00ed nerovnov\u00e1hu ve sd\u00edlen\u00ed proudu. Syst\u00e9m, kter\u00fd se zd\u00e1 b\u00fdt stabiln\u00ed p\u0159i mal\u00e9m stejnosm\u011brn\u00e9m zat\u00ed\u017een\u00ed, se m\u016f\u017ee chovat zcela jinak, kdy\u017e se spust\u00ed m\u011bni\u010d, motor, kompresor nebo \u010derpadlo.<\/p>

Chladn\u00e9 po\u010das\u00ed p\u0159id\u00e1v\u00e1 dal\u0161\u00ed vrstvu. U LiFePO4 je b\u011b\u017en\u011b omezeno nab\u00edjen\u00ed pod bodem mrazu, pokud nen\u00ed zabudov\u00e1n oh\u0159ev nebo \u0159\u00edzen\u00ed nab\u00edjen\u00ed p\u0159i n\u00edzk\u00fdch teplot\u00e1ch. Sod\u00edk-iontov\u00e9 akumul\u00e1tory mohou nab\u00eddnout lep\u0161\u00ed potenci\u00e1l p\u0159i n\u00edzk\u00fdch teplot\u00e1ch, ale to st\u00e1le z\u00e1vis\u00ed na p\u0159esn\u00fdch limitech \u010dl\u00e1nku, sady, BMS a v\u00fdrobce. Nen\u00ed bezpe\u010dn\u00e9 p\u0159edpokl\u00e1dat, \u017ee v\u0161echny sod\u00edko-iontov\u00e9 bal\u00ed\u010dky lze voln\u011b nab\u00edjet v podm\u00ednk\u00e1ch pod bodem mrazu.<\/p>

V\u011bt\u0161\u00ed banky zt\u011b\u017euj\u00ed \u0159e\u0161en\u00ed probl\u00e9m\u016f. V\u00edce \u0159et\u011bzc\u016f znamen\u00e1 v\u00edce bod\u016f p\u0159ipojen\u00ed, v\u011bt\u0161\u00ed riziko nevyv\u00e1\u017eenosti a v\u00edce mo\u017en\u00fdch cest poruch. Sm\u00ed\u0161en\u00e1 banka s v\u00edce paraleln\u00edmi \u0159et\u011bzci nen\u00ed jen v\u011bt\u0161\u00ed verz\u00ed jednoduch\u00e9 bateriov\u00e9 banky. Je to slo\u017eit\u011bj\u0161\u00ed a m\u00e9n\u011b p\u0159edv\u00eddateln\u00fd elektrick\u00fd syst\u00e9m.<\/p>

Bezpe\u010dn\u011bj\u0161\u00ed zp\u016fsoby pou\u017eit\u00ed obou chemik\u00e1li\u00ed v jednom syst\u00e9mu<\/h2>

Z\u00e1sada lep\u0161\u00edho n\u00e1vrhu je \u0159\u00edzen\u00e9 sou\u017eit\u00ed<\/strong>, nikoliv p\u0159\u00edm\u00e9 m\u00edch\u00e1n\u00ed.<\/p>

Architektura syst\u00e9mu<\/th>In\u017een\u00fdrsk\u00fd pohled<\/th><\/tr><\/thead>
P\u0159\u00edm\u00e1 paraleln\u00ed vazba pozitiv-pozitiv \/ negativ-negativ<\/td>Rizikov\u00e9, proto\u017ee se do jedn\u00e9 ne\u0159\u00edzen\u00e9 bateriov\u00e9 banky vm\u011bstnaj\u00ed dv\u011b chemie.<\/td><\/tr>
Stejn\u00e1 nab\u00edje\u010dka, stejn\u00fd m\u011bni\u010d, stejn\u00e1 sb\u011brnice DC<\/td>Rizikov\u00e9, proto\u017ee jedna \u0159\u00eddic\u00ed logika mus\u00ed slou\u017eit dv\u011bma r\u016fzn\u00fdm chov\u00e1n\u00edm baterie.<\/td><\/tr>
Pouze izol\u00e1tor baterie, rel\u00e9 nebo pojistka<\/td>Nesta\u010d\u00ed, proto\u017ee ochrann\u00fd hardware ne\u0159e\u0161\u00ed nesoulad nab\u00edjec\u00edho profilu nebo BMS.<\/td><\/tr>
Odd\u011blen\u00e9 banky s nab\u00edjen\u00edm DC-DC<\/td>Bezpe\u010dn\u011bj\u0161\u00ed, proto\u017ee ka\u017ed\u00e1 chemie m\u00e1 sv\u00e9 vlastn\u00ed nap\u011b\u0165ov\u00e9 okno a logiku BMS.<\/td><\/tr>
Odd\u011blen\u00e9 nab\u00edjec\u00ed cesty<\/td>Bezpe\u010dn\u011bj\u0161\u00ed, proto\u017ee ka\u017ed\u00e1 banka m\u016f\u017ee obdr\u017eet spr\u00e1vn\u00fd profil nab\u00edjen\u00ed.<\/td><\/tr>
N\u00e1vrh syst\u00e9mu zalo\u017een\u00fd na rol\u00edch<\/td>Bezpe\u010dn\u011bj\u0161\u00ed, proto\u017ee ka\u017ed\u00e1 chemick\u00e1 l\u00e1tka se pou\u017e\u00edv\u00e1 tam, kde je nejvhodn\u011bj\u0161\u00ed.<\/td><\/tr><\/tbody><\/table><\/figure>

Pro modernizaci syst\u00e9m\u016f jsou \u010dasto nej\u010dist\u0161\u00ed variantou samostatn\u00e9 banky s nab\u00edjen\u00edm DC-DC. Ka\u017ed\u00e1 chemie si zachov\u00e1v\u00e1 sv\u00e9 vlastn\u00ed provozn\u00ed okno a stupe\u0148 DC-DC \u0159\u00edzen\u011b spravuje p\u0159enos energie.<\/p>

U pokro\u010dilej\u0161\u00edch syst\u00e9m\u016f m\u016f\u017ee m\u00edt ka\u017ed\u00e1 baterie vlastn\u00ed nab\u00edjec\u00ed cestu, ochrannou cestu a \u0159\u00eddic\u00ed logiku. Z\u00e1t\u011b\u017ee pak mohou b\u00fdt nap\u00e1jeny prost\u0159ednictv\u00edm \u0159\u00edzen\u00e9 konverze nebo hardwaru pro kombinov\u00e1n\u00ed zdroj\u016f nam\u00edsto jednoduch\u00e9 sd\u00edlen\u00e9 sb\u011brnice.<\/p>

V n\u011bkter\u00fdch p\u0159\u00edpadech je nejlep\u0161\u00ed n\u00e1vrh zalo\u017een\u00fd na rol\u00edch. LiFePO4 m\u016f\u017ee z\u016fstat hlavn\u00ed dom\u00e1c\u00ed bankou, pokud je kolem n\u00ed syst\u00e9m ji\u017e postaven. Sodium-iontov\u00e9 baterie lze pou\u017e\u00edt jako pomocnou banku pro chladn\u00e9 po\u010das\u00ed, sekund\u00e1rn\u00ed \u00falo\u017en\u00fd modul nebo baterie pro specifick\u00e9 aplikace, kde z\u00e1le\u017e\u00ed na jejich v\u00fdhod\u00e1ch.<\/p>

C\u00edlem nen\u00ed, aby se dv\u011b r\u016fzn\u00e9 chemick\u00e9 technologie vyd\u00e1valy za jednu baterii. C\u00edlem je, aby ka\u017ed\u00e1 chemie fungovala v podm\u00ednk\u00e1ch, pro kter\u00e9 byla navr\u017eena.<\/p>

Co kdy\u017e jste je ji\u017e p\u0159ipojili paraleln\u011b?<\/h2>

Pokud ji\u017e byly sod\u00edkov\u00e9 baterie a baterie LiFePO4 p\u0159\u00edmo paraleln\u011b propojeny, nep\u0159edpokl\u00e1dejte, \u017ee je syst\u00e9m bezpe\u010dn\u00fd jen proto, \u017ee se zd\u00e1, \u017ee b\u011b\u017e\u00ed.<\/p>

Pokud je to bezpe\u010dn\u00e9, p\u0159esta\u0148te nab\u00edjet a odstra\u0148te vysok\u00e9 zat\u00ed\u017een\u00ed. Pot\u00e9 odpojte sm\u00ed\u0161en\u00e9 paraleln\u00ed spojen\u00ed podle spr\u00e1vn\u00fdch postup\u016f elektrick\u00e9 bezpe\u010dnosti. Nechte ob\u011b baterie odd\u011blen\u011b odpo\u010d\u00edvat a zkontrolujte, zda se neobjevuje neobvykl\u00e9 teplo, z\u00e1pach, bobtn\u00e1n\u00ed, chybov\u00fd stav BMS, neobvykl\u00e9 klidov\u00e9 nap\u011bt\u00ed nebo chybov\u00e9 k\u00f3dy.<\/p>

Nepokou\u0161ejte se \"vyv\u00e1\u017eit\" ob\u011b chemick\u00e9 slo\u017eky, dokud nebudou vypadat dostate\u010dn\u011b podobn\u011b. Podobn\u00e9 klidov\u00e9 nap\u011bt\u00ed neznamen\u00e1, \u017ee se budou spr\u00e1vn\u011b d\u011blit o proud p\u0159i nab\u00edjen\u00ed, vyb\u00edjen\u00ed, n\u00e1razov\u00e9m zat\u00ed\u017een\u00ed nebo studen\u00e9m provozu.<\/p>

Pokud se objev\u00ed viditeln\u00e9 po\u0161kozen\u00ed, abnorm\u00e1ln\u00ed teplo, z\u00e1pach, otok, opakovan\u00e9 poruchy BMS nebo nejistota ohledn\u011b bezpe\u010dn\u00e9ho odpojen\u00ed, p\u0159esta\u0148te syst\u00e9m pou\u017e\u00edvat a p\u0159ivolejte kvalifikovan\u00e9ho technika.<\/p>

Dal\u0161\u00edm spr\u00e1vn\u00fdm krokem nen\u00ed jejich p\u0159\u00edm\u00e9 p\u0159ipojen\u00ed. Je to p\u0159epracov\u00e1n\u00ed syst\u00e9mu s odd\u011blen\u00fdmi bateriemi, \u0159\u00edzen\u00edm DC-DC nebo pl\u00e1nem roz\u0161\u00ed\u0159en\u00ed bateri\u00ed podle chemick\u00e9ho slo\u017een\u00ed.<\/p>

Lep\u0161\u00ed technick\u00e9 pravidlo: Shoda chemie v r\u00e1mci jedn\u00e9 paraleln\u00ed banky<\/h2>

Nejjednodu\u0161\u0161\u00ed pravidlo je st\u00e1le nejlep\u0161\u00ed: udr\u017eujte jednu paraleln\u00ed baterii chemicky slad\u011bnou.<\/strong>.<\/p>

To znamen\u00e1 stejnou chemii, stejnou t\u0159\u00eddu jmenovit\u00e9ho nap\u011bt\u00ed, podobnou kapacitu, podobn\u00e9 st\u00e1\u0159\u00ed a v ide\u00e1ln\u00edm p\u0159\u00edpad\u011b stejnou modelovou \u0159adu. Shodn\u00e9 baterie sd\u00edlej\u00ed proud p\u0159edv\u00eddateln\u011bji, nab\u00edjej\u00ed se \u010dist\u011bji a sn\u00e1ze se monitoruj\u00ed, podporuj\u00ed a \u0159e\u0161\u00ed probl\u00e9my.<\/p>

I u slad\u011bn\u00fdch bateri\u00ed je t\u0159eba spr\u00e1vn\u00e9 zapojen\u00ed, spr\u00e1vn\u00e1 konstrukce p\u0159\u00edpojnic, vhodn\u00e9 ji\u0161t\u011bn\u00ed, podobn\u00e9 d\u00e9lky kabel\u016f a v\u00fdrobcem schv\u00e1len\u00e9 paraleln\u00ed limity. Sm\u00ed\u0161en\u00e9 baterie p\u0159id\u00e1vaj\u00ed dal\u0161\u00ed vrstvu nejistoty, kterou v\u011bt\u0161ina provozn\u00edch syst\u00e9m\u016f nepot\u0159ebuje.<\/p>

Sod\u00edk-iontov\u00e9 vs. LiFePO4: Kter\u00fd z nich byste m\u011bli zvolit m\u00edsto m\u00edch\u00e1n\u00ed?<\/h2>

Sod\u00edkov\u00e9 ionty volte v p\u0159\u00edpadech, kdy je kl\u00ed\u010dov\u00fd n\u00edzkoteplotn\u00ed v\u00fdkon, kdy je syst\u00e9m od po\u010d\u00e1tku navrhov\u00e1n na b\u00e1zi sod\u00edkov\u00fdch iont\u016f nebo kdy mohou m\u00edt sod\u00edkov\u00e9 ionty vlastn\u00ed \u0159\u00edzenou elektrickou cestu.<\/p>

LiFePO4 si vyberte, pokud ji\u017e m\u00e1te vysp\u011bl\u00fd ekosyst\u00e9m LiFePO4 a chcete v r\u00e1mci tohoto ekosyst\u00e9mu vyu\u017e\u00edt nej\u010dist\u0161\u00ed a nejm\u00e9n\u011b rizikovou cestu roz\u0161\u00ed\u0159en\u00ed.<\/p>

Zvolte \u0159\u00edzenou koexistenci, kdy ob\u011b chemick\u00e9 technologie p\u0159in\u00e1\u0161ej\u00ed hodnotu pro stejn\u00fd projekt, ale ka\u017ed\u00e9 z nich lze p\u0159i\u0159adit vlastn\u00ed roli, zp\u016fsob nab\u00edjen\u00ed a logiku ochrany.<\/p>

Skute\u010dn\u00fdm rozhodovac\u00edm pravidlem nen\u00ed \"kter\u00e1 chemie zn\u00ed l\u00e9pe\". Je to kter\u00e1 chemie l\u00e9pe vyhovuje cel\u00e9mu syst\u00e9mu<\/strong>.<\/p>

Z\u00e1v\u011br<\/h2>

Nepou\u017e\u00edvejte p\u0159\u00edmo paraleln\u011b sod\u00edkovo-iontov\u00e1 baterie<\/a><\/strong> a Baterie LiFePO4<\/a><\/strong>. Jejich nap\u011bt\u00ed, chov\u00e1n\u00ed p\u0159i nab\u00edjen\u00ed, logika BMS, sd\u00edlen\u00ed proudu a limity pro n\u00edzk\u00e9 teploty se nemus\u00ed shodovat.<\/p>

M\u00edsto toho pou\u017eijte \u0159\u00edzen\u00e9 sou\u017eit\u00ed: Konverze DC-DC, odd\u011blen\u00e9 nab\u00edjec\u00ed cesty nebo \u0159\u00edzen\u00e9 \u0159\u00edzen\u00ed zdroje. To chr\u00e1n\u00ed provozn\u00ed okno ka\u017ed\u00e9 baterie a usnad\u0148uje podporu syst\u00e9mu v ter\u00e9nu.<\/p>

Pro projekty se sm\u00ed\u0161en\u00fdm syst\u00e9mem,\u00a0kontaktujte n\u00e1s<\/a><\/strong>\u00a0zkontrolovat modely bateri\u00ed, st\u0159\u00edda\u010d, nastaven\u00ed nab\u00edje\u010dky, profil z\u00e1t\u011b\u017ee, teplotn\u00ed rozsah, zapojen\u00ed a po\u017eadavky BMS.<\/p>

\u010cASTO KLADEN\u00c9 DOTAZY<\/h2>

Mohu paraleln\u011b pou\u017e\u00edvat 12V sod\u00edkovou baterii s 12V bateri\u00ed LiFePO4?<\/h3>

Jako p\u0159\u00edm\u00e1 hard-paraleln\u00ed banka se obecn\u011b nedoporu\u010duje. \"12V\" je pouze ozna\u010den\u00ed t\u0159\u00eddy v\u00fdrobku. Dv\u011b baterie mohou m\u00edt st\u00e1le odli\u0161n\u00e9 jmenovit\u00e9 nap\u011bt\u00ed, chov\u00e1n\u00ed p\u0159i nab\u00edjen\u00ed, vyb\u00edjec\u00ed k\u0159ivky, vnit\u0159n\u00ed odpor a logiku ochrany.<\/p>

Pokud jsou ob\u011b baterie ozna\u010deny 12 V, pro\u010d nemohou fungovat spole\u010dn\u011b?<\/h3>

Proto\u017ee baterie nejsou pasivn\u00edmi zdroji energie. Jejich chov\u00e1n\u00ed ve sd\u00edlen\u00e9m syst\u00e9mu ovliv\u0148uje nap\u011bt\u00ed, c\u00edle nab\u00edjen\u00ed, reakce na sd\u00edlen\u00ed proudu, odhad SOC, teplotn\u00ed limity a logika BMS.<\/p>

Je bezpe\u010dn\u00e9 m\u00edchat sod\u00edkov\u00e9 ionty a LiFePO4, pokud jsou nap\u011bt\u00ed bl\u00edzk\u00e1?<\/h3>

Ne nutn\u011b. Klidov\u00e9 nap\u011bt\u00ed je pouze jednou \u010d\u00e1st\u00ed probl\u00e9mu. Baterie se mohou chovat jinak p\u0159i nab\u00edjen\u00ed, vyb\u00edjen\u00ed, p\u0159ep\u011bt\u00ed st\u0159\u00edda\u010de, n\u00edzk\u00e9 teplot\u011b nebo p\u0159i ud\u00e1lostech ochrany BMS.<\/p>

M\u016f\u017ee izol\u00e1tor bateri\u00ed zajistit bezpe\u010dnost sm\u00ed\u0161en\u00e9ho syst\u00e9mu sod\u00edk-iont a LiFePO4?<\/h3>

Jednoduch\u00fd izol\u00e1tor obvykle nesta\u010d\u00ed. M\u016f\u017ee omezit ur\u010dit\u00e9 podm\u00ednky zp\u011btn\u00e9ho proudu, ale ne\u0159e\u0161\u00ed nesoulad nab\u00edjec\u00edho profilu, chov\u00e1n\u00ed SOC, sd\u00edlen\u00ed proudu nebo koordinaci BMS. \u0158\u00edzen\u00e9 rozhran\u00ed, jako je konverze DC-DC, je obvykle bezpe\u010dn\u011bj\u0161\u00ed konstrukc\u00ed.<\/p>

Mohu pou\u017e\u00edt stejnou nab\u00edje\u010dku pro sod\u00edkov\u00e9 ionty a LiFePO4?<\/h3>

Pouze v odd\u011blen\u00e9 architektu\u0159e a pouze v p\u0159\u00edpad\u011b, \u017ee nab\u00edjec\u00ed profil odpov\u00edd\u00e1 konkr\u00e9tn\u00ed nab\u00edjen\u00e9 bance. Pokud ob\u011b chemick\u00e9 baterie sd\u00edlej\u00ed jeden nab\u00edjec\u00ed profil na jedn\u00e9 ne\u0159\u00edzen\u00e9 stejnosm\u011brn\u00e9 sb\u011brnici, m\u016f\u017ee b\u00fdt jedna baterie nedostate\u010dn\u011b nab\u00edjena nebo druh\u00e1 baterie m\u016f\u017ee b\u00fdt nab\u00edjena mimo sv\u016fj preferovan\u00fd rozsah.<\/p>

Jak\u00fd je nejbezpe\u010dn\u011bj\u0161\u00ed zp\u016fsob pou\u017eit\u00ed sod\u00edkov\u00fdch iont\u016f a LiFePO4 ve stejn\u00e9m projektu?<\/h3>

Zach\u00e1zejte s nimi jako se samostatn\u00fdmi spravovan\u00fdmi bankami a propojte je prost\u0159ednictv\u00edm spr\u00e1vn\u00e9 konverzn\u00ed nebo \u0159\u00eddic\u00ed vrstvy. V mnoha syst\u00e9mech je bezpe\u010dn\u011bj\u0161\u00edm \u0159e\u0161en\u00edm konverze DC-DC, odd\u011blen\u00e9 nab\u00edjec\u00ed cesty nebo p\u0159i\u0159azen\u00ed bateri\u00ed na z\u00e1klad\u011b rol\u00ed nam\u00edsto p\u0159\u00edm\u00e9ho tvrd\u00e9ho paraleln\u00edho propojen\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"

\"Mohu k baterii LiFePO4 p\u0159idat paraleln\u011b sod\u00edkovou baterii?\" Tato ot\u00e1zka je \u010dast\u00e1 v syst\u00e9mech pro obytn\u00e9 vozy, off-grid, lodn\u00ed syst\u00e9my, z\u00e1lo\u017en\u00ed syst\u00e9my a syst\u00e9my pro chladn\u00e9 po\u010das\u00ed. Zn\u00ed to efektivn\u011b: ponechte si st\u00e1vaj\u00edc\u00ed banku LiFePO4, p\u0159idejte sod\u00edkovou baterii pro v\u011bt\u0161\u00ed kapacitu nebo lep\u0161\u00ed v\u00fdkon p\u0159i n\u00edzk\u00fdch teplot\u00e1ch a vyhn\u011bte se p\u0159estavb\u011b syst\u00e9mu. Ale baterie nejsou generick\u00e9 12V krabi\u010dky. Sod\u00edkovo-iontov\u00e9 baterie...<\/p>","protected":false},"author":1,"featured_media":1181,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_lock_modified_date":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[19,26],"tags":[],"class_list":["post-5175","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news_catalog","category-product-news"],"_links":{"self":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts\/5175","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/comments?post=5175"}],"version-history":[{"count":1,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts\/5175\/revisions"}],"predecessor-version":[{"id":5176,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts\/5175\/revisions\/5176"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/media\/1181"}],"wp:attachment":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/media?parent=5175"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/categories?post=5175"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/tags?post=5175"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}