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Isingeniso kumgomo wokusebenza kanye nezinzuzo zebhethri ye-lithium iron

Isikhathi: 2023-03-23 Ukushaya: 49

Iyini ibhethri ye-lithium iron? Isingeniso kumgomo wokusebenza kanye nezinzuzo zebhethri ye-lithium iron

Ibhethri yensimbi ye-lithium wuhlobo lwebhethri emndenini webhethri le-lithium. Igama layo eligcwele lithi lithium iron phosphate lithium ion battery. I-cathode material ngokuyinhloko i-lithium iron phosphate. Ngenxa yokuthi ukusebenza kwayo kulungele ukusetshenziswa kwamandla, kubizwa nangokuthi "ibhethri yamandla ensimbi ye-lithium". (ngemuva kwalokhu kubizwa ngokuthi "ibhethri yensimbi ye-lithium")

Isimiso sokusebenza sebhethri ye-lithium iron (LiFePO4)

Isakhiwo sangaphakathi sebhethri ye-LiFePO4: I-LiFePO4 enesakhiwo se-olivine kwesokunxele sisetshenziswa njengesigxobo esihle sebhethri, esixhunywe nge-aluminium foil kanye nesigxobo sebhethri. Phakathi nendawo kukhona i-polymer diaphragm, ehlukanisa isigxobo esihle nesigxobo esinegethivu. Nokho, i-lithium ion Li+ ingadlula kodwa i-electronic e - ayikwazi. Kwesokudla isigxobo esinegethivu sebhethri esakhiwe ngekhabhoni (graphite), exhunywe ngecwecwe lethusi kanye nesigxobo esinegethivu sebhethri. I-electrolyte yebhethri iphakathi kweziphetho ezingenhla nezingezansi zebhethri, futhi ibhethri livalwa ngegobolondo lensimbi.

Uma ibhethri ye-LiFePO4 ishajwa, i-lithium ion Li+ ku-electrode eqondile ithuthela ku-electrode engalungile ngokusebenzisa i-polymer membrane; Phakathi nenqubo yokukhipha, i-lithium ion Li+ ku-electrode engalungile ithuthela ku-electrode enhle ngokusebenzisa i-diaphragm. Ibhethri le-lithium-ion liqanjwe ngemuva kokufuduka kwe-lithium ion ngesikhathi sokushaja nokukhipha.

Ukusebenza okuyinhloko kwebhethri ye-LiFePO4

I-voltage yebhethri ye-LiFePO4 ingu-3.2 V, i-voltage yokushaja yokuphela ingu-3.6 V, kanti i-voltage yokukhipha isiphetho ingu-2.0 V. Ngenxa yekhwalithi ehlukene kanye nenqubo yezinto ezibonakalayo ze-electrode ezinhle nezimbi kanye nezinto ze-electrolyte ezisetshenziswa abakhiqizi abahlukahlukene, ukusebenza kwabo. izohluka ngandlela thize. Isibonelo, umthamo webhethri wemodeli efanayo (ibhethri elijwayelekile ephaketheni elifanayo) lihluke kakhulu (10% ~ 20%).

Izinzuzo zebhethri ye-lithium iron

Uma kuqhathaniswa namabhethri endabuko e-lead-acid, amabhethri e-lithium-ion anezinzuzo ezibalulekile ku-voltage esebenzayo, ukuminyana kwamandla, impilo yomjikelezo, njll. Uma kuqhathaniswa nebhethri elivamile le-asidi yomthofu, linezinzuzo ezilandelayo: ukuminyana kwamandla aphezulu, ukuphepha okuqinile, okuhle. ukusebenza okuphezulu kwezinga lokushisa, ukuphuma kwamandla aphezulu, impilo yomjikelezo omude, isisindo esincane, ukonga izindleko zokuqinisa igumbi lomshini, usayizi omncane, impilo yebhethri ende, ukuphepha okuhle, njll.

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