Lithium Battery Structure

Cov roj teeb lithium feem ntau muaj ob qhov tshwm sim: cylindrical thiab square. Lub roj teeb siv cov txheej txheem kauv winding sab hauv, nrog cov khoom zoo heev thiab permeable polyethylene zaj duab xis cais ntawm qhov zoo thiab tsis zoo electrodes. Cov electrode zoo suav nrog cov khoom tam sim no uas muaj lithium cobalt oxide (los yog lithium nickel cobalt manganese oxide, lithium manganese oxide, lithium hlau phosphate, thiab lwm yam) thiab txhuas ntawv ci. Qhov tsis zoo electrode yog tsim los ntawm cov khoom siv tam sim no uas muaj cov khoom siv carbon graphitized thiab tooj liab ntawv ci. Lub roj teeb tau ntim nrog cov tshuaj organic electrolyte. Tsis tas li ntawd, lub valve muaj kev nyab xeeb thiab PTC cov khoom (ib feem siv hauv hom cylindrical) kuj tau teeb tsa los tiv thaiv lub roj teeb ntawm kev puas tsuaj thaum lub roj teeb nyob rau hauv lub xeev tsis zoo thiab cov zis yog luv luv.
Qhov hluav taws xob ntawm ib lub roj teeb lithium yog 3.7V (3.2V rau qhov zoo electrode ntawm lithium hlau phosphate), thiab lub roj teeb muaj peev xwm ua tsis tiav. Yog li ntawd, ib lub roj teeb lithium feem ntau txuas nrog hauv cov koob thiab sib npaug kom tau raws li qhov yuav tsum tau muaj ntawm ntau zaus.