Lithium cobalt oxide roj teeb, tseem hu ua LCO roj teeb, yog hom roj teeb lithium-ion uas tau siv dav hauv ntau yam khoom siv hluav taws xob, xws li smartphones, laptops, thiab cov koob yees duab digital. Nws yog lub npe hu rau nws lub zog siab ceev, lub teeb yuag, thiab lub neej ntev mus ntev. Txawm li cas los xij, tus nqi ntawm LCO roj teeb tuaj yeem siab heev vim tus nqi ntawm cov khoom siv raw siv hauv nws cov khoom, thiab cov electrolyte siv hauv lub roj teeb yog cov khoom tseem ceeb uas ua lub luag haujlwm tseem ceeb hauv nws cov kev ua tau zoo thiab kev nyab xeeb.

Ua ntej, cia peb tham txog tus nqi ntawm lithium cobalt oxide roj teeb. Tus nqi ntawm LCO roj teeb tuaj yeem sib txawv nyob ntawm seb yam xws li kev lag luam xav tau, tus nqi raw khoom, thiab cov txheej txheem tsim khoom. Cobalt, ib qho ntawm cov khoom tseem ceeb ntawm LCO roj teeb, yog cov khoom siv kim heev. Tus nqi ntawm cobalt tau hloov pauv nyob rau xyoo tas los no, ua rau muaj kev hloov pauv ntawm tus nqi ntawm LCO roj teeb. Tsis tas li ntawd, tus nqi ntawm kev tsim LCO roj teeb kuj tuaj yeem siab dua lwm hom roj teeb lithium-ion vim qhov nyuaj ntawm cov txheej txheem ntau lawm.

Tam sim no, cia peb txav mus rau cov electrolyte siv hauv lithium cobalt oxide roj teeb. Cov electrolyte yog ib qho tseem ceeb hauv lub roj teeb uas ua cov lithium ions ntawm qhov zoo thiab tsis zoo electrodes thaum lub sij hawm them nqi thiab tawm mus. Qhov feem ntau siv electrolyte hauv LCO roj teeb yog kev sib xyaw ntawm lithium ntsev thiab cov kuab tshuaj organic. Txawm li cas los xij, muaj qee qhov kev txhawj xeeb txog kev nyab xeeb uas cuam tshuam nrog kev siv cov tshuaj tua hluav taws kub nyhiab, thiab lawv tuaj yeem tsis ruaj khov ntawm qhov kub thiab txias. Yog li ntawd, cov kws tshawb fawb tab tom tshawb nrhiav kev siv cov khoom siv hluav taws xob zoo dua thiab ruaj khov dua, xws li cov khoom siv hluav taws xob electrolytes.

Hauv kev xaus, tus nqi ntawm lithium cobalt oxide roj teeb tuaj yeem siab heev vim tus nqi ntawm cov khoom siv raw thiab cov txheej txheem tsim khoom. Cov electrolyte siv nyob rau hauv lub roj teeb yog ib qho tseem ceeb tivthaiv uas ua lub luag haujlwm tseem ceeb hauv nws txoj kev ua tau zoo thiab kev nyab xeeb. Txawm hais tias feem ntau siv electrolyte muaj qee qhov kev txhawj xeeb txog kev nyab xeeb, cov kws tshawb fawb tau ua haujlwm los tsim kom muaj kev nyab xeeb dua thiab ruaj khov electrolytes rau siv hauv LCO roj teeb. Nrog rau kev txhim kho txuas ntxiv ntawm thev naus laus zis thiab kev nthuav dav ntawm daim ntawv thov, nws xav tias tus nqi ntawm LCO roj teeb yuav txo qis, thaum lawv cov kev ua tau zoo thiab kev nyab xeeb yuav txuas ntxiv txhim kho.