I-18650 ibhetri ye-lithium-ion ukutshaja kumaqondo obushushu aphantsi kuya kuba nefuthe elinjani?Masiyijonge ngezantsi.
Yintoni umphumo wokutshaja ibhetri ye-18650 ye-lithium-ion kwindawo yobushushu obuphantsi?
Ukutshaja iibhetri ze-lithium-ion kwiindawo ezinobushushu obuphantsi kubangela imingcipheko ethile yokhuseleko.Oku kungenxa yokuba kunye nokuncipha kokufuma, iipropathi zekinetic ze-graphite negative electrode ziqhubela phambili ukuwohloka kwiseshoni yokutshaja, i-electrochemical polarization ye-electrode negative iba mandundu kakhulu, imvula yentsimbi ye-lithium ithande ukusekwa kwe-lithium. i-dendrites, iphakamisa i-diaphragm kwaye ngaloo ndlela ibangele isiphaluka esifutshane se-electrode echanekileyo kunye nengalunganga.Kangangoko kunokwenzeka ukuthintela ukutshaja kwebhetri ye-lithium-ion kumaqondo obushushu aphantsi.
Ukuqwalasela ubushushu obuphantsi, i-electrode engalunganga kwi-lithium-ion ibhetri efakwe kwindlwane iya kuvela iikristale ze-ion, inokugqobhoza ngokuthe ngqo i-diaphragm, phantsi kweemeko eziqhelekileyo ziya kubangela ukuba i-micro-short circuit ichaphazele ubomi kunye nokusebenza, okukhona kubi kakhulu kunokwenzeka ukuba kuqhume!
Ngokutsho kophando lwengcali olugunyazisiweyo: iibhetri ze-lithium-ion ixesha elifutshane kwindawo yobushushu obuphantsi, okanye iqondo lokushisa likude kakhulu, liya kuchaphazela okwethutyana amandla ebhetri yeebhetri ze-lithium-ion, kodwa aziyi kuvelisa umonakalo osisigxina. .Kodwa ukuba isetyenziswe ixesha elide kwindawo yobushushu obuphantsi, okanye kwi -40 ℃ iqondo lobushushu eliphantsi kakhulu, iibhetri ze-lithium-ion zinokukhenkcezwa ukuze zenze umonakalo osisigxina.
Ubushushu obuphantsi bokusetyenziswa kweebhetri ze-lithium-ion bunomthamo ophantsi, ukubola okukhulu, ukungasebenzi kakuhle komjikelo wokuphindaphinda, i-lithium precipitation echazwe kakhulu, kunye ne-lithium de-embedding engalinganiyo.Nangona kunjalo, kunye nokuhlaziywa okuqhubekayo kwezinto eziphambili zokusetyenziswa, izithintelo ezilethwe kukungasebenzi kakuhle kweqondo lokushisa eliphantsi kweebhetri ze-lithium-ion zibonakala ngakumbi.Kwi-aerospace enzima, i-heavy-duty, izithuthi zombane kunye nezinye iindawo, ibhetri iyadingeka ukuba isebenze ngokufanelekileyo kwi -40 ° C.Ngaloo ndlela, ukuphuculwa okuqhubekayo kweempawu ezisezantsi zokushisa kweebhetri ze-lithium-ion kunokubaluleka kweqhinga.
Kanjalo,ukuba ibhetri yakho ye-lithium ye-18650 ixhotyiswe ngezinto eziphantsi kobushushu, isenokuthi ihlawulwe ngokuqhelekileyo kwindawo yobushushu obuphantsi.
Ixesha lokuposa: Dec-26-2022