Kuluntu lwanamhlanje, ukunqongophala kwamandla, ukungcoliswa kwendalo kunye neminye imiba iye yaphakamisa imiba ebalulekileyo kuluntu.Abavelisi beebhetri ezahlukeneyo baye baphanda ngenkuthalo kwaye baphuhlisa iintlobo ezahlukeneyo zeebhetri, ngakumbi i-lithium-ion amandla ebhetri ye-lithium-ion njengommeli ophambili wokusombulula le ngxaki.Ibhotile kwisicelo kunye nokukhuthazwa kweebhetri ze-lithium-ion ze-lithium kukuba ibhetri enye kwipakethi yebhetri iyasilela ngexesha lesicelo esidityanisiweyo, okukhokelela ekwehleni komsebenzi jikelele wepakethi yebhetri kunye nepakethi yebhetri isetyenziswe ngaphezulu komda. .
I-Cordless Hammer Drill 20mmnjengoko izinto ezisebenzayo zebhetri zibizwa ngokuba yi-lithium ion ibhetri, eyahlula ibhetri ye-lithium ion yokuqala kunye nebhetri ye-lithium ion yesibini.
Ibhetri enokuthi ifake kwaye idibanise i-lithium ion kunye nedatha yekhabhoni inokuthi ithathe indawo ye-lithium ecocekileyo njenge-electrode engalunganga, i-lithium compound ingasetyenziselwa njenge-electrode efanelekileyo, kwaye i-electrolyte edibeneyo ingasetyenziswa njenge-electrolyte.
Idatha ye-electrode efanelekileyo yebhetri ye-lithium ion ngokubanzi iqulunqwe ngamacandelo asebenzayo e-lithium, ngelixa i-electrode engafanelekanga i-carbon enesakhiwo esikhethekileyo se-molecular.Icandelo eliqhelekileyo elibalulekileyo ledatha efanelekileyo yi-LiCoO2.Xa utshaja, amandla ombane webhetri emantla nakumazantsi eepalini anyanzelisa i-compound kwi-electrode efanelekileyo ukukhulula i-ion ze-lithium, kwaye i-athomu ye-electrode engalunganga ifakwe kwikhabhoni kwisakhiwo esine-leying.Ngethuba lokukhutshwa, i-lithium ion ihlukaniswe kwikhabhoni edibeneyo kwaye iphinde idibanise kunye ne-compound ehlawulwe ngokufanelekileyo.Umbane okhoyo uyenzeka ekuhambeni kweeyoni ze-lithium.
Nangona umgaqo wokusabela kweekhemikhali ulula kakhulu, kwimveliso yokwenyani yoshishino, mininzi imiba esebenzayo ekufuneka iqwalaselwe: idatha ye-electrode elungileyo kufuneka igxininise kwimisebenzi yokutshaja ngokuphindaphindiweyo kwizongezo, kwaye idatha ye-electrode engalunganga kufuneka iqulathe ngaphezulu. I-lithium ion kwinqanaba loyilo lwesakhiwo semolekyuli;kwi I-electrolyte ezaliswe phakathi kwe-electrode efanelekileyo kunye ne-electrode engalunganga, ngaphezu kozinzo, nayo ine-conductivity egqwesileyo yokunciphisa ukuxhathisa kwebhetri.
Nangona ibhetri ye-lithium-ion iphantse ingabikho isiphumo sokukhumbula, umthamo wayo uya kuncipha emva kokutshaja ngokuphindaphindiweyo, okubangelwa kakhulu utshintsho kwidatha efanelekileyo kunye nembi ngokwayo.Ukusuka kwinqanaba le-molecular, i-cavity structure ye-lithium ion kwi-electrode efanelekileyo kunye ne-negative iya kuwa ngokuthe ngcembe kwaye ibhloke.Ukusuka kumbono weekhemikhali, ngumsebenzi wedatha i-passivation ye-electrode efanelekileyo kunye ne-electrode engalunganga, kunye nezinye iikhompawundi ezizinzile kwi-reaction yesibini zivela.Kukho neemeko ezithile zomzimba, ezinjengokuhluthwa ngokuthe ngcembe kwedatha ye-electrode efanelekileyo, ekugqibeleni iya kunciphisa inani le-lithium ion kwibhetri, ukuyivumela ukuba ihambe ngokukhululekileyo ngexesha lokutshaja kunye nokukhupha.
Ukugqithiswa kunye nokukhutshwa kwenze umonakalo osisigxina kwi-electrodes yeebhetri ze-lithium-ion.Ukusuka kwinqanaba le-molecular, kunokuqondwa ngokucacileyo ukuba ukukhutshwa kwekhabhoni ye-anode kuya kubangela ukukhutshwa ngokugqithiseleyo kwe-lithium ion kunye nokuncipha kwesakhiwo somaleko, kunye nokutshaja okungaphezulu kuya kubangela kakhulu. I-lithium ion ayisakwazi ukukhutshwa.Yingakho iibhetri ze-lithium-ion zixhotyiswe ngokubanzi ngeesekethe zokulawula intlawulo kunye nokukhupha.
Ixesha lokuposa: Sep-26-2022