Ua ntej, cia saib cov qauv ntawm lithium roj teeb qhov zoo electrode. Nws feem ntau suav nrog LiCoO2 (lithium cobalt oxide), tus neeg sawv cev ua haujlwm, cov ntawv khi (PVDF), thiab cov khoom siv tam sim no (cov ntawv txhuas). LiCoO2 yog qhov tseem ceeb ntawm cov khoom siv hluav taws xob zoo, lub luag haujlwm muab hluav taws xob hluav taws xob; tus neeg sawv cev conductive thiab binder txhim kho conductivity thiab muab adhesion; thiab tam sim no collector sau thiab xa tam sim no.
Tom ntej no, cia peb saib cov electrode tsis zoo, uas muaj graphite, tus neeg sawv cev conductive, thickener (CMC), ib daim ntawv khi (SBR), thiab cov khoom siv tam sim no (tooj liab ntawv ci). Zoo ib yam li cov electrode zoo, graphite yog cov khoom tseem ceeb ntawm cov electrode tsis zoo, lub luag haujlwm khaws cia hluav taws xob hluav taws xob; lwm yam khoom siv txhua tus ua lub luag haujlwm tshwj xeeb, sib sau ua ke kom ntseeg tau cov roj teeb ua haujlwm tau zoo.
Nrog rau cov qauv no, thaum tso tawm, LiCoO2 nyob rau hauv qhov zoo electrode tso lithium ions. Cov ions no taug kev los ntawm electrolyte mus rau qhov tsis zoo electrode, qhov uas lawv hnov mob nrog cov graphite, tso hluav taws xob hluav taws xob. Thaum lub sij hawm them nyiaj, qhov rov qab tshwm sim tshwm sim: lithium ions raug tso tawm los ntawm graphite thiab rov qab mus rau qhov zoo electrode los ntawm electrolyte, ua tiav cov txheej txheem them nyiaj.
