Ukuhlaziywa kwendlela yokushaja yephakethe lebhethri le-lithium-ion evamile

ليکڪ: آئي فلو پاور - Nešiojamų elektrinių tiekėjas

Ngokuthuthuka okusheshayo komphakathi, amabhethri ethu e-lithium-ion nawo athuthuka ngokushesha. Ngakho-ke uyaluqonda ulwazi oluningiliziwe lwamabhethri e-lithium-ion? Okulandelayo, ake uXiaobian ahole wonke umuntu ukuze afunde kabanzi ngolwazi. Ibhethri ye-lithium-ion ingumthombo wamandla ofaneleka ngenxa ye-voltage ephezulu yokusebenza, usayizi omncane, ikhwalithi yokukhanya, akukho mphumela wenkumbulo, akukho ukungcola, ukuzikhipha, impilo yomjikelezo omude iwumthombo wamandla ofanele.

Ekusetshenzisweni kwangempela, ukuze kutholwe i-voltage yokukhipha ephezulu, okungenani amabhethri e-lithium ion amabili e-monomer ngokuvamile asetshenziswa ochungechungeni ukusebenzisa iphakethe lebhethri le-lithium ion. Njengamanje, iphakethe lebhethri le-lithium-ion lisetshenziswe kabanzi emikhakheni ehlukahlukene efana namalaptop, amabhayisikili kagesi namandla ayisipele. Ngakho-ke, indlela yokusebenzisa iphakethe lebhethri ye-lithium ion lapho ishaja ibaluleke kakhulu, nezindlela ezimbalwa zokushaja ezivame ukusetshenziswa kumaphakethe ebhethri ye-lithium ion kanye nendlela yokushaja efaneleke kakhulu okukholakala ukuthi ilandelayo: 1 Ishaja yochungechunge olujwayelekile, ama-ion we-lithium Ukushajwa kwephakethe lebhethri ngokuvamile kushajwa ngochungechunge, okubalulekile ngoba indlela yokushaja yochungechunge ilula futhi ilula ukuyisebenzisa.

Kodwa-ke, ngenxa yomehluko kumthamo, ukumelana kwangaphakathi, izici zokunciphisa, ukuzikhulula phakathi kwamaseli asekelwe kuseli elilodwa, lapho ushaja iphakethe lebhethri ye-lithium ion, iseli lincane kunebhethri kuseli yebhethri yeseli eyodwa. Izoshajwa ngokugcwele, ngalesi sikhathi, amanye amabhethri awazange agcwaliswe ngogesi, uma uqhubeka nokushaja, ibhethri ye-lithium ion eshajwayo ingase ishaje. Ukushajwa ngokweqile kwamabhethri e-lithium-ion kuzolimaza kakhulu ukusebenza kwebhethri, futhi kungase kubangele nokuqhuma, okuholela ekulimaleni komuntu siqu.

Ngakho-ke, ukuze kuvinjelwe ukushajwa ngokweqile kwebhethri elilodwa le-lithium ion, ngokuvamile lihlinzekwa ngohlelo lokuphatha ibhethri (BatteryManagementSystem, esifushanisiwe njenge-BMS), futhi ibhethri le-lithium ion ngalinye likhokhiswa ngokweqile uhlelo lokuphatha ibhethri. Lapho ukushajwa kushajwa, uma i-voltage yebhethri ye-lithium ion eyodwa ifinyelela ku-voltage yokuvikela ukushajwa ngokweqile, isistimu yokuphatha ibhethri inqamula yonke isekethe yokushaja futhi imise ukushaja ukuvimbela amabhethri ngamanye ukuthi angakhokhi ngokweqile, okuholela ekushajweni kwamanye amabhethri. Ibhethri ye-lithium-ion ayikwazi ukushajwa ngokugcwele.

Ngemuva kweminyaka yokuthuthuka, amabhethri e-lithium iron phosphate ashukumisayo e-lithium-ion anelise ngokuyisisekelo izidingo zezimoto zikagesi, ikakhulukazi izimoto zikagesi ezimsulwa ngenxa yokuphepha okuphezulu nokusebenza kahle komjikelezo. Le nqubo itholakalela ukukhiqizwa ngobuningi. Kodwa-ke, ukusebenza kwebhethri ye-ion ye-lithium iron phosphate kuhlukile kwamanye amabhethri e-lithium ion, ikakhulukazi izici zayo ze-voltage kanye namabhethri e-lithium-manganese acid lithium-ion.

Ukwengeza, nakuba ezinye izinhlelo zokuphatha ibhethri zinomsebenzi wokulinganisa, ngenxa yezindleko, ukuchithwa kokushisa, ukwethembeka, njll., ibhalansi yesistimu yokuphatha ibhethri ngokuvamile incane kakhulu kuneyamanje eshajwayo, ngakho umphumela wokulinganisa awuhle kakhulu. Ngokusobala, izovela.

Amanye amabhethri esigaba esisodwa awashajwe ngokugcwele, okusobala kakhulu mayelana nephakethe lebhethri le-lithium-ion ukuthi libe ukushaja okuphezulu kwamanje, njengephakethe lebhethri le-lithium ion lezimoto zikagesi. 2 Isistimu yokuphatha ibhethri kanye nokuxhumana komshini wokushaja nochungechunge lokuphatha ibhethri lesistimu iyisisetshenziswa esiqondwa kakhulu sokusebenza kwebhethri nesimo. Ngakho-ke, ngokusungula ukuxhumana phakathi kwesistimu yokuphatha ibhethri neshaja, ishaja ingakwazi ukuqonda imininingwane yebhethri ngesikhathi sangempela, ngaleyo ndlela ixazulule isikhathi sokushajwa kwebhethri ngempumelelo.

Umgomo wesistimu yokulawula ibhethri kanye nemodi yokushaja edidiyelwe yeshaja yilena: uhlelo lokuphatha ibhethri luqapha isimo samanje sebhethri (njengezinga lokushisa, i-voltage yebhethri eyodwa, ukusebenza kwebhethri yamanje, ukungaguquguquki nokukhuphuka kwezinga lokushisa, njll.). Futhi sebenzisa lezi zinhlaka ukuze ulinganisele isilinganiso esiphezulu esivumelekile sokushaja samanje sebhethri lamanje; ngesikhathi sokushaja, amasistimu okuphatha ibhethri namashaja axhunywa ngemigqa yokuxhumana, futhi asebenzise ukwabelana ngedatha.

Uhlelo lokuphatha ibhethri luzokhuphula ivolumu yebhethri, umkhawulo ophezulu wevolthi yebhethri eyodwa, izinga lokushisa eliphezulu, umkhawulo ophezulu wevolthi wokushaja ovunyelwe, umthamo omkhulu ovunyelwe webhethri elilodwa kanye nokushaja okuphezulu okuvumelekile okukhona eshaja, ishaja ingaphathwa ngokuya ngokuxhunywa ekuphathweni kwebhethri Ulwazi oluhlinzekwe yisistimu luzoshintsha isu layo lokushaja kanye namandla aphumayo. Uma isilinganiso esiphezulu samanje sokushaja esivunyelwe esihlinzekwa isistimu yokuphatha ibhethri singaphezu komthamo wamanje wokuklama weshaja, ishaja izoshajwa ngokuvumelana nenani eliphezulu eliphumayo lamanje lomklamo; lapho i-voltage yebhethri nezinga lokushisa lidlula umkhawulo, isistimu yokuphatha ibhethri ingakwazi ukubona ngesikhathi sangempela futhi yazise ukushaja ngesikhathi. Uma amandla okushaja mkhulu kunesilinganiso esiphezulu samanje sokushaja esivumelekile, ishaja iqala ukulandela umthamo omkhulu wamanje wokushaja ovunyelwe, ivimbele ngempumelelo ibhethri ekushajweni ngokweqile, ifinyelele inhloso yokwelula impilo yebhethri.

Uma ukwehluleka kusenqubweni yokushaja, isistimu yokuphatha ibhethri ingasetha isilinganiso esiphezulu sokushaja samanje sibe ku-0, ukuze ishaja iyeke ukusebenza, ngaleyo ndlela ivimbele ingozi futhi iqinisekise ukuphepha kokushaja.