Isiphumo sokuTshaja ngokukhawuleza kwiBattery yeLithium Positive Electrode

Ukusetyenziswa kweiibhetri ze-lithium-ioniye yaziphucula kakhulu iindlela zokuphila zabantu.Nangona kunjalo, ngophuhliso olukhawulezayo loluntu lwangoku, abantu bafuna isantya esiphezulu nesiphezulu sokutshaja, ngoko ke uphando lokutshaja ngokukhawuleza kweebhetri ze-lithium-ion lubaluleke kakhulu.Le high-energy-densityibhetri ye-lithium-ionitekhnoloji yokutshaja ngokukhawuleza iya kuba namathemba osetyenziso olubanzi kwizixhobo zombane eziphathwayo, izixhobo zombane ezinamandla aphezulu, kunye nezithuthi zombane.Nangona kunjalo, uphando lwangoku lokutshaja ngokukhawuleza luye lwathintelwa yimiqobo emininzi, efana ne-lithium evolution kwicala elibi le-electrode.Ukuze kuphuculwe ukusebenza ngokukhawuleza kokutshaja kweebhetri ze-lithium-ion, kufuneka siqonde ngokupheleleyo utshintsho kwizinto ze-electrode ngexesha leenkqubo ezilungileyo nezimbi.

Kutshanje, uGqr. Tanvir R. Tanim ovela e-United States upapashe amaphepha ophando anxulumeneyo.Eli nqaku lidibanisa uhlalutyo lwe-electrochemical, iimodeli zokungaphumeleli kunye nokulinganisa emva kokuvavanya ukufunda imiphumo yokutshaja ngokukhawuleza (XFC) kwizinto ze-cathode kwizikali ezininzi.Iisampuli zovavanyo ziquka i-41 G/NMCiibhetri zesingxobo.Ireyithi yentlawulo ekhawulezayo (1-9 C) kwaye ujikeleze ukuya kuthi ga kwi-1000 ngamaxesha olawulo.Kwafunyaniswa ukuba ngexesha lomjikelo wokuqala, ingxaki ye-electrode entle yayincinci kakhulu, kodwa ekupheleni kobomi bebhetri, i-electrode entle yabonakala iintanda ezicacileyo kwaye ihamba kunye nomatshini wokudinwa, ukusilela kwe-electrode elungileyo kwaqala ukukhawuleza.Ngethuba lomjikelezo, isakhiwo esiphambili se-electrode efanelekileyo sihlala sichanekile, kodwa sinokuqaphela ukuba iinqununu eziphezu komhlaba zihlaziywa kakhulu.

Ngokuhlalutya, kunokufunyanwa ukuba nakwizinga eliphantsi kakhulu, ubunzulu bentlawulo ephezulu buya kubangela ukuba umthamo we-cathode uyancipha.Oku kubangelwa ubukhulu becala ngenxa yokuba ubunzulu bokutshaja obuphezulu bubangela ukuba uxinzelelo olwenziwa ngaphakathi kwamasuntswana e-electrode ancumisayo lunyuke, ngoko ke ukonakala okwenzekayo nako kukhulu, okukhokelela kumonakalo omkhulu kumjikelo ngamnye.