Njengamanje, amabhethri e-lithium asetshenziswa kabanzi kumadivayisi ahlukahlukene edijithali njengezincwadi zamabhuku, amakhamera edijithali, namakhamera evidiyo edijithali. Ngaphezu kwalokho, anamathuba abanzi ezimotweni, eziteshini eziyisisekelo eziphathwayo, kanye naseziteshini zamandla okugcina amandla. Kulokhu, ukusetshenziswa kwamabhethri akusabonakali kodwa njengakumaselula, kodwa kubonakala kakhulu ngesimo samabhethri achungechunge noma ahambisanayo.
Umthamo kanye nokuphila kwephakethe lebhethri akuhlobene nje kuphela nebhethri ngalinye, kodwa futhi kuhlobene nokungaguquguquki phakathi kwebhethri ngalinye. Ukungaguquguquki okungekuhle kuzokwehlisa kakhulu ukusebenza kwephakethe lebhethri. Ukungaguquguquki kokuzikhipha kuyingxenye ebalulekile yezici ezithonyayo. Ibhethri elinokukhipha okungekuhle okungaguquguquki lizoba nomehluko omkhulu ku-SOC ngemva kwesikhathi sokugcina, okuzothinta kakhulu umthamo walo kanye nokuphepha kwalo.
Kungani kwenzeka ukuzikhipha?
Uma ibhethri livuliwe, ukusabela okungenhla akwenzeki, kodwa amandla azoqhubeka ehla, okubangelwa kakhulu ukuzikhipha kwebhethri. Izizathu eziyinhloko zokuzikhipha yilezi:
a. Ukuvuza kwama-electron angaphakathi okubangelwa ukuqhutshwa kwama-electrolyte noma amanye ama-internal short circuits.
b. Ukuvuza kukagesi kwangaphandle ngenxa yokushisa okungekho kahle kwezivalo zebhethri noma ama-gasket noma ukumelana okwanele phakathi kwamagobolondo e-lead angaphandle (ama-conductor angaphandle, umswakama).
c. Ukusabela kwe-electrode/electrolyte, njengokugqwala kwe-anode noma ukuncipha kwe-cathode ngenxa ye-electrolyte, ukungcola.
d. Ukuwohloka okuyingxenye kwezinto ezisebenzayo ze-electrode.
e. Ukudluliselwa kwama-electrode ngenxa yemikhiqizo yokubola (amagesi angancibiliki kanye namagesi afakwe emanzini).
f. I-electrode igugile ngomshini noma ukumelana phakathi kwe-electrode kanye nomqoqi wamanje kuba kukhulu.
Ithonya lokuzikhipha emzimbeni
Ukuzikhipha ngokwakho kuholela ekwehleni komthamo ngesikhathi sokugcina.Izinkinga eziningana ezivamile ezibangelwa ukuzikhipha ngokweqile:
1. Imoto ibipakwe isikhathi eside kakhulu futhi ayikwazi ukuqaliswa;
2. Ngaphambi kokuba ibhethri lifakwe endaweni yokugcina izinto, i-voltage nezinye izinto zivamile, futhi kutholakala ukuthi i-voltage iphansi noma i-zero uma ithunyelwa;
3. Ehlobo, uma i-GPS yemoto ibekwa emotweni, amandla noma isikhathi sokusetshenziswa ngeke sanele ngemva kwesikhathi esithile, ngisho noma ibhethri liqhuma.
Ukuzikhipha ngokwakho kuholela ekwandeni komehluko we-SOC phakathi kwamabhethri kanye nomthamo wephakethe lebhethri onciphile
Ngenxa yokuzikhipha kwebhethri ngokungaguquki, i-SOC yebhethri ephaketheni lebhethri izohluka ngemva kokugcina, futhi ukusebenza kwebhethri kuzoncipha. Amakhasimende angathola inkinga yokwehla kokusebenza ngemva kokuthola iphakethe lebhethri eligcinwe isikhathi esithile. Lapho umehluko we-SOC ufinyelela cishe ku-20%, umthamo webhethri elihlanganisiwe ungama-60% ~ 70% kuphela.
Ungayixazulula kanjani inkinga yomehluko omkhulu we-SOC obangelwa ukuzikhulula?
Kalula nje, sidinga ukulinganisela amandla ebhethri kuphela futhi sidlulisele amandla eseli elinamandla aphezulu kuseli elinamandla aphansi. Okwamanje kunezindlela ezimbili: ukulinganisela okungasebenzi kanye nokulinganisela okusebenzayo
Ukulinganisa okungasebenzi kahle kuwukuxhuma i-resistor yokulinganisela ngokuhambisana neseli ngayinye yebhethri. Uma iseli lifinyelela i-overvoltage kusengaphambili, ibhethri lisengashajwa futhi lishaje amanye amabhethri ane-voltage ephansi. Ukusebenza kahle kwale ndlela yokulinganisa akuphezulu, futhi amandla alahlekile alahleka ngesimo sokushisa. Ukulinganisa kumele kwenziwe kwimodi yokushaja, futhi ugesi wokulinganisa ngokuvamile u-30mA kuya ku-100mA.
Isilinganisi esisebenzayongokuvamile ibhalansisa ibhethri ngokudlulisa amandla futhi idlulise amandla amaseli nge-voltage eyeqile kwamanye amaseli ane-voltage ephansi. Le ndlela yokulinganisa inamandla aphezulu futhi ingalinganiswa kokubili ezimweni zokushaja kanye nokukhipha. I-equalization current yayo inkulu ngokuphindwe kaningi kune-passive equalization current, ngokuvamile phakathi kuka-1A-10A.
Isikhathi sokuthunyelwe: Juni-17-2023
