Kungani amabhethri e-lithium esebenzisa i-aluminium njengamagobolondo?

Izizathu eziyinhloko zamabhethri e-lithium ukusebenzisa amagobolondo e-aluminium zingahlaziywa ngokuningiliziwe kusuka ezicini ezilandelayo, okuyi-lightweight, ukumelana nokugqwala, ukuhamba kahle, ukusebenza kahle kokucubungula, izindleko eziphansi, ukusebenza kahle kokukhipha ukushisa, njll.

1. Engasindi

• Ukuminyana okuphansi: Ukuminyana kwe-aluminium cishe kungama-2.7 g/cm³, ephansi kakhulu kunaleyo yensimbi, ecishe ibe ngu-7.8 g/cm³. Kumishini kagesi ephishekela ukuminyana kwamandla aphezulu kanye nesisindo esincane, njengomakhalekhukhwini, amakhompyutha aphathekayo, nezimoto zikagesi, amagobolondo e-aluminium anganciphisa ngempumelelo isisindo sonke futhi athuthukise ukukhuthazela.

2. Ukumelana nokugqwala

• Ukuzivumelanisa nezimo endaweni ene-voltage ephezulu: I-voltage yokusebenza yezinto ze-electrode ephozithivu yebhethri ye-lithium, njengezinto ze-ternary ne-lithium cobalt oxide, iphakeme ngokuqhathaniswa (3.0-4.5V). Kuleli khono, i-aluminiyamu izokwakha ifilimu eliwugqinsi le-aluminium oxide (Al₂O₃) endaweni ukuvimbela ukugqwala okwengeziwe. Insimbi igqwala kalula yi-electrolyte ngaphansi kwengcindezi ephezulu, okuholela ekulimaleni kokusebenza kwebhethri noma ukuvuza.

• Ukuhambisana kwe-Electrolyte: I-Aluminium inokusimama okuhle kwamakhemikhali kuma-electrolyte e-organic, njenge-LiPF₆, futhi ayijwayele ukusabela ngesikhathi sokusetshenziswa isikhathi eside.

3. I-Conductivity kanye nomklamo wesakhiwo

• Uxhumo lwamanje lomqoqi: I-Aluminium iyinto ekhethwayo yabaqoqi bamanje be-electrode (njenge-aluminium foil). Igobolondo le-aluminium lingaxhunywa ngokuqondile ku-electrode enhle, lenze ukwakheka kwangaphakathi libe lula, linciphise ukumelana, futhi lithuthukise ukusebenza kahle kokudluliselwa kwamandla.

• Izidingo ze-Shell conductivity: Kwezinye imiklamo yebhethri, igobolondo le-aluminium liyingxenye yendlela yamanje, njengamabhethri ayisilinda, anakho kokubili ukusebenza nokusebenza kokuvikela.

4. Ukucubungula ukusebenza

• I-ductility enhle kakhulu: I-Aluminium kulula ukuyigxiviza nokunwebeka, futhi ifanele ukukhiqizwa kwezinga elikhulu lomumo oyinkimbinkimbi, njengamafilimu e-aluminium-plastic yamabhethri ayisikwele kanye ne-soft-pack. Amagobolondo ensimbi anzima ukusetshenzwa futhi anezindleko eziphezulu.

• Isiqinisekiso sokuvala: Ubuchwepheshe bokushisela igobolondo le-aluminium buvuthiwe, njenge-laser welding, engavala ngokuphumelelayo i-electrolyte, ivimbele umswakama nomoya-mpilo ekuhlaseleni, futhi andise ukuphila kwebhethri.

5. Ukuphathwa kokushisa

• Ukusebenza kahle kokukhipha ukushisa okuphezulu: I-thermal conductivity ye-aluminium (cishe 237 W/m·K) iphakeme kakhulu kunaleyo yensimbi (cishe 50 W/m·K), esiza ibhethri ukuthi ikhiphe ukushisa ngokushesha lapho isebenza futhi inciphise ingozi yokubaleka kokushisa.

6. Izindleko nomnotho

• Izindleko eziphansi zempahla neyokucubungula: Intengo yezinto ezingavuthiwe ze-aluminium iphakathi, futhi ukusetshenziswa kwamandla okucutshungulwa kuphansi, okufanele ukukhiqizwa ngezinga elikhulu. Ngokuphambene, izinto ezifana nensimbi engagqwali zibiza kakhulu.

7. Umklamo wokuphepha

• Indlela yokusiza ukucindezela: Amagobolondo e-aluminium angakhulula ukucindezela kwangaphakathi futhi agweme ukuqhuma uma kwenzeka kushajwa kakhulu noma kubaleka ukufudumala ngokuklama amavalvu okuphepha, njenge-CID flip structure yamabhethri angamacylindrical.

8. Izinqubo zemboni kanye nokulinganisa

• Amagobolondo e-aluminium asetshenziswa kabanzi kusukela ezinsukwini zakuqala zokuthengiswa kwebhethri ye-lithium, njengebhethri ye-18650 eyethulwe ngabakwa-Sony ngo-1991, akha uchungechunge lwezimboni ezivuthiwe kanye namazinga obuchwepheshe, ngokuqhubekayo ehlanganisa indawo yayo evamile.

Kuhlala kukhona okuhlukile. Kwezinye izimo ezikhethekile, amagobolondo ensimbi nawo asetshenziswa:

Kwezinye izimo ezinezidingo zamandla okusebenza aphezulu kakhulu, njengamabhethri athile amandla noma izinhlelo zokusebenza zemvelo ezidlulele, amagobolondo ensimbi ane-nickel-plated angasetshenziswa, kodwa izindleko zikhuphuka isisindo kanye nezindleko.

Isiphetho

Amagobolondo e-aluminium abe yisinqumo esihle samagobolondo ebhethri ye-lithium ngenxa yezinzuzo zawo ezibanzi njengesisindo sokukhanya, ukumelana nokugqwala, ukuqhutshwa kahle, ukucubungula okulula, ukuchithwa kokushisa okuhle kakhulu kanye nezindleko eziphansi, ukulinganisa ukusebenza kahle, ukuphepha kanye nezidingo zomnotho.