Uhlalutyo oluthile lokuqhuma kwebhetri ye-lithium ion

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - អ្នកផ្គត់ផ្គង់ស្ថានីយ៍ថាមពលចល័ត

Umgaqo webhetri ye-lithium ion Ibhetri ye-lithium ion yenziwe nge-electrode efanelekileyo, i-anode, i-diaphragm, kunye ne-electrolyte. I-electrode e-positive kunye ne-negative layer ihlanganiswe ngokuqinileyo kunye, kwaye umaleko kunye noluhlu lwahlulwe kwi-insulator, kwaye i-positive kunye ne-negative ifakwe kwi-electrolyte. Iibhetri ze-Cylindrical kunye neebhetri zesikwere zisetyenzisiwe njengebhetri ye-lithium ion ibhetri yesakhiwo eyenziwe ngamacandelo amabini ahlukeneyo e-lithium-insertic, ngokulandelanayo.

Isixhobo se-electrode esilungileyo sisiguqulo esiqinileyo se-oxide yensimbi, i-oxide yensimbi, i-sulfide yensimbi, kunye nokunye okunjalo. urhwebo Izinto ezintle ze-electrode ezisetyenziswa ngokuqhelekileyo kwiibhetri ze-lithium-ion yeyona nto isetyenziswa kakhulu kwi-anode ye-transition metal oxides. Izinto ze-anode ziqinisiwe kwi-inorganic non-metallic materials, i-metal-non-metallic composites, ii-oxide zetsimbi, kunye nokunye okunjalo.

I-lithium ye-iron phosphate yezinto ezilungileyo kunye ne-negative Izinto ze-electrode electrode zenziwe kwizinto eziqhubayo zigqiba amandla ombane kunye nomthamo we-electrolyte yebhetri njengenxalenye eqinile yebhetri ye-lithium ion, kwaye idlala umnqweno wokudluliselwa kwangoku ngexesha lokuhlawulwa kwebhetri kunye nokukhupha. Ukuze kuthintelwe izinto ezintle kunye ezimbi ze-electrode ezifakwe kwi-electrolyte kwisisombululo se-electrolytic, i-electrode efanelekileyo kunye ne-negative ihlulwe kwizinto ezilungileyo kunye ne-negative electrode ezifakwe kwi-electrolyte. I-LI ithathwa kwi-electrode efanelekileyo, kwaye i-electrode engafanelekanga ifakwe kwi-electrode engalunganga, i-electrode efanelekileyo ikwimo ye-lithium, intlawulo yembuyekezo ye-electron inikezelwa yisekethe yangaphandle ukuqinisekisa ukulingana kwentlawulo.

Ukukhutshwa kuhambelana nokukhutshwa, kwaye i-Li isuswe kwi-electrode engafanelekanga kwaye ifakwe kwizinto ze-cathode nge-electrolyte. Ngaphantsi kweemeko eziqhelekileyo zokutshaja kunye nokukhupha, i-ion ze-lithium zifakwe kwaye zisuswe phakathi kwezixhobo zekhabhoni ezicwangcisiweyo kunye nezakhiwo ezinqamlekileyo, ezibangela kuphela utshintsho kwisithuba somgangatho wezinto ngaphandle kokonakalisa isakhiwo sabo se-crystal. Ngexesha lokuhlawula kunye nokukhupha inkqubo, ukwakheka kweekhemikhali zezinto ezingalunganga ze-electrode azitshintshi.

I-ion reaction equation iyanda ingenakwenzeka ukongeza amanyathelo okhuseleko ngaphakathi kwebhetri, njengoko ilandela umthamo ophezulu wokunyusa ubomi bebhetri. Ukususela ngo-1991 ukuthengiswa kwebhetri ye-lithium-ion ukuya kule ngqungquthela, amandla ombane weebhetri ze-lithium-ion wongeze indlela yokuqhuma kwebhetri ye-lithium-ion amaxesha amane okanye amahlanu. Ngoko siyayiqonda indlela esebenza ngayo, ukuze siqonde ukuba yintoni eyabangela ukuqhuma kwebhetri yeLithium ion.

Ukuhlawula kunye nokukhutshwa kwe-lithium yesebe ye-crystal ukukhula kwebhetri kukubuyisela ukubuyiswa kwee-ion ze-lithium. Ngexesha lokutshaja, i-lithium ion iyancitshiswa ibe yintsimbi ye-lithium efakwe kwi-electrode engalunganga. Ngokubanzi, i-lithium inokufakwa kwi-interlayer structure, enokuthi ikhule kumphezulu we-electrode ngenxa yokungaqiniseki kokukhula, kwaye umaleko wokukhula unesakhiwo esifanayo esihlatyiweyo njengesebe, elinokonakalisa i-diaphragm yebhetri, kubangele isiphaluka esifutshane ngaphakathi kwebhetri.

Kwaye ukuqhuma kwebhetri. Ukuba ibhetri inesiphene, amasuntswana esinyithi adibanisa i-electrode engalunganga ngokusebenzisa ibhetri yokukhusela ibhetri, itshintshe indlela yangoku, ibangela ukuba izinto zangaphakathi zihlambuluke, ukwenzela ukuba ukusabela kweekhemikhali kuphulukane nolawulo, ukukhulula ubushushu obuninzi, ukutshisa ibhetri yephakheji yebhetri Ukutshaja ibhetri yethu yangoku kunenkqubo yokukhusela, impendulo yombane webhetri, kunye nesilumkiso phezu kwentlawulo, enokubangela ukutshaja, ukukhuselwa kwebhetri yelithium okanye ukutshatyalaliswa kwebhetri. izinto ze-cathode Iyaqhubeka ikhutshwe kwaye ifakwe kwizinto ezimbi ze-electrode. Ukuba ubuninzi be-lithium efakwe kwi-carbon negative electrode ifikeleleke, i-lithium engaphezulu iya kubeka kwizinto eziphathekayo ze-electrode ngendlela ye-lithium yensimbi, yanciphisa kakhulu ukusebenza kokuzinza kwebhetri.

Nokuba ukuqhuma kuhambelana nebhetri ye-lithium-ion, kungekhona nje ukuba umthamo webhetri uphuculwe, kodwa ukusebenza kokhuseleko akunakungahoywa. Namhlanje, abanye abavelisi beebhetri banomgangatho ophezulu wokhuseleko, nokuba babone iibhetri. Siyaqonda ukuba xa isikhonkwane singena ebhetri, siya kudibanisa ngokuthe ngqo kwi-positive negative, eya kubangela isiphaluka esifutshane sangaphakathi.

Ijeli ye-electrolyte kunye ne-polymer electrolyte zikwaphononongwa ngakumbi, ngakumbi uphuhliso lwe-polymer electrolyte, akukho volatilization ye-electrolyte engamanzi ebhetri, ephucula kakhulu ukhuseleko lwebhetri.