理士蓄電池在UPS中已得到廣泛(fan)的應用，其品種繁(fan)多(duo)，型(xing)號齊全(quan)，規格(ge)各異，但按其基(ji)本性(xing)質可以分為酸性(xing)電(dian)(dian)池和堿(jian)性(xing)電(dian)(dian)池兩(liang)大類：

1. 酸性(xing)電(dian)(dian)(dian)池(chi)：酸性(xing)電(dian)(dian)(dian)池(chi)的電(dian)(dian)(dian)解液一般是由(you)稀硫酸(H2SO4)或者膠(jiao)體硫酸構成，極板由(you)鉛Pb和過氧化(hua)鋁PbO2構成，通過化(hua)學反應貯存(cun)電(dian)(dian)(dian)荷(he)，起到電(dian)(dian)(dian)池(chi)儲能的作用(yong)。

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2.堿(jian)性電池(chi)(chi)：堿(jian)性電池(chi)(chi)的電解(jie)液一(yi)般是(shi)(shi)由氫氧(yang)化(hua)鉀KOH或者(zhe)氫氧(yang)化(hua)鈉NaOH(燒堿(jian))組(zu)成。極(ji)(ji)板(ban)由于電池(chi)(chi)的結構不同(tong)而各異(yi)。如鎘(ge)鎳(nie)電池(chi)(chi)正(zheng)極(ji)(ji)板(ban)是(shi)(shi)氫氧(yang)化(hua)鎳(nie)Ni(OH)3，負(fu)極(ji)(ji)板(ban)是(shi)(shi)鎘(ge)Cd;鐵鎳(nie)電池(chi)(chi)的正(zheng)極(ji)(ji)板(ban)是(shi)(shi)氫氧(yang)化(hua)鎳(nie)Ni(OH)3，負(fu)極(ji)(ji)板(ban)是(shi)(shi)鐵Fe;銀(yin)鋅(xin)電池(chi)(chi)的正(zheng)極(ji)(ji)板(ban)是(shi)(shi)過氧(yang)化(hua)銀(yin)Ag2O3，負(fu)極(ji)(ji)板(ban)是(shi)(shi)鋅(xin)Zn。

在UPS供電(dian)(dian)(dian)(dian)(dian)(dian)系統中，蓄電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)大(da)多采用(yong)免維護蓄電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)。蓄電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)在UPS供電(dian)(dian)(dian)(dian)(dian)(dian)系統中的(de)主要作用(yong)就是儲存電(dian)(dian)(dian)(dian)(dian)(dian)能，一旦市電(dian)(dian)(dian)(dian)(dian)(dian)中斷，由電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)供給逆變(bian)(bian)器，由逆變(bian)(bian)器將電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)釋放(fang)出的(de)直流電(dian)(dian)(dian)(dian)(dian)(dian)轉變(bian)(bian)為(wei)正弦(xian)交流電(dian)(dian)(dian)(dian)(dian)(dian)，維持UPS的(de)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)輸出，確保負載在一定的(de)時間內正常(chang)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)。

在(zai)市電(dian)(dian)(dian)正常供電(dian)(dian)(dian)時(shi)，電(dian)(dian)(dian)池在(zai)整流(liu)-充電(dian)(dian)(dian)電(dian)(dian)(dian)路(lu)中儲存電(dian)(dian)(dian)能，同時(shi)對直流(liu)電(dian)(dian)(dian)路(lu)起(qi)到平滑濾(lv)波(bo)的(de)作(zuo)用(yong)，并(bing)在(zai)逆變器(qi)發生過載時(shi)，起(qi)到緩沖器(qi)的(de)作(zuo)用(yong)。