干電(dian)池(chi)(chi)(chi)(chi)（Dry cell）是(shi)一種以糊狀電(dian)解(jie)(jie)液(ye)來產生直流電(dian)的化學電(dian)池(chi)(chi)(chi)(chi)（濕電(dian)池(chi)(chi)(chi)(chi)則為使(shi)用(yong)(yong)(yong)液(ye)態電(dian)解(jie)(jie)液(ye)的化學電(dian) 池(chi)(chi)(chi)(chi)），屬于一次(ci)電(dian)池(chi)(chi)(chi)(chi)，是(shi)日常生活之(zhi)中為普遍(bian)使(shi)用(yong)(yong)(yong)，以及輕(qing)便(bian)的電(dian)池(chi)(chi)(chi)(chi)。它可在實驗室內自(zi)制的電(dian)池(chi)(chi)(chi)(chi)們可以使(shi)用(yong)(yong)(yong)于很多(duo)電(dian)器用(yong)(yong)(yong)品(pin)上。

普(pu)通干電(dian)池大(da)都是(shi)錳鋅電(dian)池，中間是(shi)正極碳棒，外包(bao)石(shi)墨和(he)二氧(yang)化(hua)錳的混合物，再(zai)外是(shi)一(yi)層(ceng)纖維網。網上涂有(you)很(hen)厚的電(dian)解質糊(hu)，其構成是(shi)氯化(hua)氨溶液和(he)淀粉，另有(you)少量防腐(fu)劑。

干電(dian)(dian)池屬(shu)于化(hua)學電(dian)(dian)源中的原電(dian)(dian)池，是一(yi)種(zhong)一(yi)次性電(dian)(dian)池，它(ta)以二氧化(hua)錳為(wei)正極，以鋅筒(tong)為(wei)負(fu)極，把化(hua)學能轉變為(wei)電(dian)(dian)能供給外電(dian)(dian)路。在化(hua)學反應(ying)中由于鋅比錳活潑，鋅失去電(dian)(dian)子被氧化(hua)，錳得(de)到(dao)電(dian)(dian)子被還原。