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蓄电池充放电的工作原理

  铅蓄电池在充电和放电会产生如下反应:PbO2+pb+2H2SO4===2PbSO4+2H2O在充电时,在电能的作用下,转化为PbO2 、Pb和H2SO4也就是说充电是由电能转化为化学能的过程。放电时,正极板接受了负极板送来的电子,铅离子有正4价变为正2价。与硫酸根接触生成难溶于水的 硫酸铅,负极的铅由于输出2个电子,变成正2价。同样也生成硫酸铅。也就是说放电时,再由贮存的化学能转为电能。

  


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  LIUSUANYANHUAJIXUDIANCHISHIXIAOJILI SUIZHEXUDIANCHIDESHIYONGCISHUZENGJIA,FANGDIANRONGLIANGBUDUANJIANXIAO,YOUYURENMENDUIDIANCHIDESHIYONGYAOQIUBUDUI,SUOYIBAOFEIBIAOZHUNYEBUXIANGTONG。YIBANLAIJIANG,ZHENGCHANGSHIYONGDIANCHI,RONGLIANGDIYUEDINGRONGLIANG60%。JIWEIBAOFEIDIANCHI,XUYAOWEIHUHUOWEIXIU。YOUYUDIANCHIDEZHIZAOTIAOJIAN,SHIYONGFANGSHIYOUCHABIE,ZHONGDAOZHIDIANCHIBAOFEIDEYUANYINYEGEBUXIANGTONG。DANGUINAQILAIYOUYIXIAJIZHONG①ZHENGJIBANDEFUSHIBIANXING②ZHENGJIHUOXINGWUZHIRUANHUATUOLUO③BUKENIDELIUSUANYANHUA④RONGLIANGGUOZAOSUNSHI⑤RESHIKONG。QIZHONGBUKENIDELIUSUANYANHUASHIDAOZHIDIANCHISHIXIAOBAOFEIDECHANGJIANDEYUANYIN。

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