Isingeniso:
Ibhethri le-lithiumibhethri elisebenzisa insimbi ye-lithium noma i-lithium compound njengezinto ze-electrode. Ngenxa yesikhulumi se-voltage ephezulu, isisindo esincane kanye nokuphila isikhathi eside kwesevisi ye-lithium, ibhethri le-lithium seliye laba uhlobo oluyinhloko lwebhethri olusetshenziswa kakhulu kuma-electronics abathengi, izinhlelo zokugcina amandla, izimoto zikagesi nakwezinye izinkambu. Namuhla, ake sihlole izinyathelo ezimbalwa zokugcina zokukhiqiza amabhethri e-lithium, i-Formation-OCV testcapacity-Separation.
Ukwakheka
Ukwakheka kwebhethri le-lithium kuyinqubo yokuqala yokushaja ibhethri ngemva kokuba ibhethri le-lithium ligcwele uketshezi.
Le nqubo ingenza kusebenze izinto ezisebenzayo ebhethrini futhi isebenzeibhethri le-lithiumNgesikhathi esifanayo, usawoti we-lithium uphendula ne-electrolyte ukuze kwakheke ifilimu ye-solid electrolyte interface (SEI) ohlangothini lwe-electrode olungalungile lwebhethri le-lithium. Le filimu ingavimbela ukwenzeka okuqhubekayo kokusabela okungekuhle, ngaleyo ndlela kuncishiswe ukulahleka kwe-lithium esebenzayo ebhethrini le-lithium. Ikhwalithi ye-SEI inethonya elikhulu empilweni yomjikelezo, ukulahleka kwamandla okuqala, kanye nokusebenza kwezinga lamabhethri e-lithium.
Ukuhlolwa kwe-OCV
Ukuhlolwa kwe-OCV ukuhlolwa kwe-voltage yesekethe evulekile, ukumelana kwangaphakathi kwe-AC kanye ne-voltage yegobolondo yeseli elilodwa. Kuyingxenye ebaluleke kakhulu yenqubo yokukhiqiza ibhethri. Kudingeka kuhlangatshezwane nokunemba kwe-OCV okungu-0.1mv kanye nokunemba kwe-voltage yegobolondo okungu-1mv. Ukuhlolwa kwe-OCV kusetshenziselwa ukuhlunga amaseli.
Inqubo yokukhiqiza ukuhlolwa kwe-OCV
Ukuhlolwa kwe-OCV kulinganisa kakhulu izici zebhethri ngokucindezela ama-probe axhunywe kumhloli we-voltage kanye nomhloli wokumelana kwangaphakathi ezindlebeni ezinhle nezimbi zebhethri le-soft pack.
Ukuhlolwa kwe-OCV kwamanje ikakhulukazi ukuhlolwa okuzenzakalelayo. Isisebenzi sibeka ibhethri ngesandla kudivayisi yokuhlola, bese i-probe yedivayisi yokuhlola ithintana nezindlebe ezinhle nezimbi zebhethri ukuze yenze ukuhlolwa kwe-OCV ebhethrini, bese ikhulula ibhethri ngesandla bese ihlela.
Ukwahlukaniswa komthamo webhethri le-lithium
Ngemva kweqembu leamabhethri e-lithiumzenziwe, yize usayizi ufana, amandla amabhethri azohluka. Ngakho-ke, kumele ashajwe ngokugcwele emishinini ngokwezincazelo, bese ekhishwa (akhishwe ngokuphelele) ngokwezimo zamandla ezichaziwe. Isikhathi esithathwayo ukukhipha ibhethri siphindaphindwe ngokugcwele yizimo zamandla okukhipha yizimo zebhethri.
Uma nje umthamo ovivinyiwe uhlangabezana noma udlula umthamo oklanyiwe, ibhethri le-lithium liyafaneleka, futhi ibhethri elinomthamo ongaphansi komthamo oklanyiwe alikwazi ukubhekwa njengebhethri elifanelekile. Le nqubo yokukhetha amabhethri afanelekile ngokuhlolwa komthamo ibizwa ngokuthi ukuhlukaniswa komthamo.
Indima kaibhethri le-lithiumUkuhlukaniswa kwamandla akugcini nje ngokusiza ekuzinzeni kwefilimu ye-SEI, kodwa futhi kunganciphisa isikhathi esichithwa yinqubo yokuhlukaniswa kwamandla, kunciphise ukusetshenziswa kwamandla futhi kwandise amandla okukhiqiza.
Enye inhloso yokuhlukanisa umthamo ukuhlukanisa nokuhlanganisa amabhethri, okungukuthi, ukukhetha ama-monomer anokumelana kwangaphakathi okufanayo kanye nomthamo wokuhlanganisa. Lapho kuhlanganiswa, yilawo kuphela anokusebenza okufanayo angakha iphakethe lebhethri.
Isiphetho
Ekugcineni,ibhethri le-lithiumuseqede zonke izinqubo zeseli yebhethri ngemuva kokuhlolwa okugcwele, ukufafaza ikhodi yebanga, ukuhlolwa kokuskena kwebanga, kanye nokupakishwa, elinde ukuhlanganiswa ephaketheni lebhethri.
Ngokuphathelene namaphakethe ebhethri, uma unombono wamaphakethe ebhethri e-DIY, i-Heltec inikezaabahloli bomthamo webhethriukukwazisa ukuthi uqonde amapharamitha ebhethri lakho futhi ucabangele ukuthi kufanelekile yini ukuhlanganisa iphakethe lebhethri olifunayo. Siphinde sinikezeisilinganisi sebhethriukugcina amabhethri akho amadala nokulinganisela amabhethri ngokushaja okungalingani kanye nokukhipha ukuze kuthuthukiswe ukusebenza kahle kwebhethri kanye nokuphila kwayo.
I-Heltec Energy ingumlingani wakho othembekile ekukhiqizeni amaphakethe ebhethri. Ngokugxila kwethu ocwaningweni nasekuthuthukisweni okungapheli, kanye nohlu lwethu oluphelele lwezesekeli zebhethri, sinikeza izixazululo ezifika kanye ukuze kuhlangatshezwane nezidingo ezishintshayo zomkhakha. Ukuzibophezela kwethu ekwenzeni kahle, izixazululo ezenzelwe wena, kanye nokubambisana okuqinile kwamakhasimende kusenza sibe yisinqumo esikhethwa kakhulu ngabakhiqizi nabahlinzeki bamaphakethe ebhethri emhlabeni jikelele.
Uma unemibuzo noma ungathanda ukwazi okwengeziwe, sicela ungangabazi ukungithumelelaxhumana nathi.
Isicelo Sekhotheshini:
UJacqueline:jacqueline@heltec-energy.com/ +86 185 8375 6538
I-Sucre:sucre@heltec-bms.com/ +86 136 8844 2313
UNancy:nancy@heltec-energy.com/ +86 184 8223 7713
Isikhathi sokuthunyelwe: Novemba-11-2024