Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lub roj teeb cuam tshuam nrog kev hloov pauv ntawm cov tshuaj siv hluav taws xob thiab hluav taws xob hluav taws xob los ntawm cov tshuaj tiv thaiv electrochemical. Lub roj teeb feem ntau muaj qhov zoo electrode (cathode), qhov tsis zoo electrode (anode), electrolyte, thiab ib qho cais. Thaum tso tawm, cov khoom siv anode raug oxidation thiab tso tawm electrons; cov electrons ntws los ntawm ib qho hluav taws xob sab nraud mus rau lub cathode, tsim hluav taws xob tam sim no uas ua rau cov khoom siv sab nraud. Ib txhij, ions nyob rau hauv cov electrolyte migrate nyob rau hauv lub roj teeb kom muaj nuj nqis nqi, cia cov electrochemical cov tshuaj tiv thaiv mus tas li. Thaum lub sij hawm them nyiaj, ib qho hluav taws xob sab nraud muab lub zog rau lub roj teeb, thim rov qab cov tshuaj tiv thaiv sab hauv thiab khaws lub zog hauv lub roj teeb rau kev siv tom ntej.
Lub luag haujlwm tseem ceeb ntawm lub roj teeb cia siab rau qhov sib txawv ntawm cov khoom siv cathode thiab anode. Cov roj teeb sib txawv siv cov khoom sib txawv ntawm cov khoom siv tshuaj sib txawv, uas ua rau muaj qhov sib txawv ntawm qhov voltage, muaj peev xwm, lub neej voj voog, thiab cov yam ntxwv ntawm daim ntawv thov. Piv txwv li, lead-acid roj teeb feem ntau siv lead dioxide raws li cathode, lead ua anode, thiab sulfuric acid tov raws li electrolyte; lawv muaj nuj nqis rau lawv cov cuab yeej paub tab, tus nqi qis, thiab kev ntseeg siab. Hauv qhov sib piv, lithium- roj teeb ion ua tiav lub zog hloov pauv los ntawm kev sib cuam tshuam thiab de-intercalation ntawm lithium ions ntawm cov khoom siv cathode thiab anode. Lawv muab cov txiaj ntsig zoo xws li lub zog siab ceev, lub teeb yuag, thiab lub neej voj voog ntev, ua rau lawv siv dav hauv lub zog cia, cov khoom siv hluav taws xob, thiab cov khoom siv hluav taws xob niaj hnub tsis cuam tshuam (UPS).
Voltage, tam sim no, thiab muaj peev xwm yog qhov tseem ceeb tsis muaj kev cuam tshuam txog lub roj teeb kev ua haujlwm. Thaum lub sij hawm them nyiaj, lub zog hluav taws xob tau muab los ntawm cov khoom siv them nyiaj, rov qab kho cov khoom siv mus rau qhov siab - lub zog; Thaum lub sij hawm tso tawm, cov khoom siv hluav taws xob khaws cia tau hloov mus rau hauv hluav taws xob hluav taws xob thiab tso tawm los ntawm ib qho hluav taws xob sab nraud. Battery Management Systems (BMS) ua lub luag haujlwm tseem ceeb hauv kev siv roj teeb niaj hnub. Lawv saib xyuas qhov hluav taws xob, tam sim no, qhov kub thiab txias, thiab qhov muaj peev xwm seem hauv lub sijhawm tiag tiag- lub sijhawm thiab txhim kho kev nyab xeeb ntawm kev ua haujlwm thiab kev ruaj ntseg los ntawm kev ua haujlwm xws li ntsuas lub xov tooj ntawm tes, tiv thaiv overcharge, thiab tshaj - kev tiv thaiv tawm, yog li tiv thaiv kev ua haujlwm tsis zoo lossis teeb meem kev nyab xeeb los ntawm kev siv tsis raug.
