干電(dian)(dian)(dian)池(chi)（Dry cell）是(shi)一(yi)種(zhong)以(yi)糊(hu)狀電(dian)(dian)(dian)解液來產生直流電(dian)(dian)(dian)的(de)(de)化學電(dian)(dian)(dian)池(chi)（濕(shi)電(dian)(dian)(dian)池(chi)則為使(shi)用(yong)液態(tai)電(dian)(dian)(dian)解液的(de)(de)化學電(dian)(dian)(dian) 池(chi)），屬于一(yi)次電(dian)(dian)(dian)池(chi)，是(shi)日常生活之中為普遍(bian)使(shi)用(yong)，以(yi)及輕便的(de)(de)電(dian)(dian)(dian)池(chi)。它可(ke)在實驗(yan)室內自制的(de)(de)電(dian)(dian)(dian)池(chi)們可(ke)以(yi)使(shi)用(yong)于很多電(dian)(dian)(dian)器用(yong)品上。

普通干電池大都是錳(meng)(meng)鋅電池，中間(jian)是正極碳棒，外(wai)包石(shi)墨和(he)二氧化錳(meng)(meng)的(de)混合物(wu)，再外(wai)是一層纖(xian)維網。網上涂有(you)很厚(hou)的(de)電解質糊，其(qi)構成是氯化氨溶液和(he)淀粉，另有(you)少量(liang)防腐劑。

干電(dian)池屬于化(hua)(hua)(hua)學(xue)電(dian)源(yuan)中的原(yuan)電(dian)池，是一種(zhong)一次性電(dian)池，它以二氧(yang)化(hua)(hua)(hua)錳(meng)為正極，以鋅筒為負極，把化(hua)(hua)(hua)學(xue)能轉(zhuan)變(bian)為電(dian)能供給外電(dian)路。在化(hua)(hua)(hua)學(xue)反應(ying)中由于鋅比錳(meng)活潑，鋅失(shi)去電(dian)子被(bei)氧(yang)化(hua)(hua)(hua)，錳(meng)得到電(dian)子被(bei)還原(yuan)。