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铅蓄电池中的正极板栅铅锑合金在充电时能形成多种氧化膜.根据我们先前的工作,可以认为其中主要为PbO_2和PbO·PbSO_4膜,后者在20mV·s~(-1)的线性扫描电位曲线中于-0.82V(vs.Hg/Hg_2SO_4,下同)时给出还原电流峰.因铅蓄电池在放电时,其正极的电极电位在1V左右,所以正极板栅上的PbO·PbSO_4膜不会在放电时被还原.如此,电池经一定次数的充放电循环后,PbO·PbSO_会否因其不被还原以致积累而成为阳极膜的主要成份?为了弄清这一问题,本文模拟铅蓄电池充、放电时正极所处的电极电位范围,采用循环伏安法研
Based on our previous work, it can be considered that PbO_2 and PbO · PbSO_4 films are mainly contained in the lead-acid battery, and the latter is in the range of 20mV · s -1 In the linear sweep potential curve, a reduction current peak is given at -0.82V (vs.Hg / Hg_2SO_4, the same below). Since the potential of the positive electrode of the lead battery is about 1V at the time of discharging, the PbO · PbSO_4 film will not be discharged during discharge.Thus, the battery after a certain number of charge-discharge cycles, PbO · PbSO_ will not be reduced as a result of its accumulation and become the main component of the anode film? To understand this problem, This paper simulated lead-acid battery charge and discharge when the anode electrode potential range, the use of cyclic voltammetry