干電(dian)(dian)(dian)池（Dry cell）是一種以糊狀(zhuang)電(dian)(dian)(dian)解(jie)液(ye)來產生(sheng)直流(liu)電(dian)(dian)(dian)的(de)(de)化學電(dian)(dian)(dian)池（濕電(dian)(dian)(dian)池則(ze)為使(shi)用液(ye)態電(dian)(dian)(dian)解(jie)液(ye)的(de)(de)化學電(dian)(dian)(dian) 池），屬于一次電(dian)(dian)(dian)池，是日常(chang)生(sheng)活之中為普(pu)遍使(shi)用，以及(ji)輕便(bian)的(de)(de)電(dian)(dian)(dian)池。它可(ke)在(zai)實驗室內自制的(de)(de)電(dian)(dian)(dian)池們可(ke)以使(shi)用于很多電(dian)(dian)(dian)器(qi)用品上(shang)。

普(pu)通干電(dian)池大都(dou)是(shi)錳(meng)鋅(xin)電(dian)池，中間是(shi)正極碳棒，外包(bao)石墨和二氧(yang)化錳(meng)的混(hun)合物，再外是(shi)一層(ceng)纖維(wei)網(wang)(wang)。網(wang)(wang)上(shang)涂有(you)很厚(hou)的電(dian)解質糊(hu)，其構成是(shi)氯化氨溶液和淀(dian)粉，另有(you)少量(liang)防腐劑。

干電(dian)(dian)(dian)池屬于(yu)化(hua)學(xue)電(dian)(dian)(dian)源中(zhong)的原(yuan)(yuan)電(dian)(dian)(dian)池，是(shi)一(yi)種一(yi)次性(xing)電(dian)(dian)(dian)池，它(ta)以二氧化(hua)錳(meng)(meng)為正極(ji)(ji)，以鋅筒為負極(ji)(ji)，把(ba)化(hua)學(xue)能轉變為電(dian)(dian)(dian)能供給外電(dian)(dian)(dian)路。在化(hua)學(xue)反應中(zhong)由于(yu)鋅比錳(meng)(meng)活(huo)潑，鋅失去電(dian)(dian)(dian)子被氧化(hua)，錳(meng)(meng)得到電(dian)(dian)(dian)子被還原(yuan)(yuan)。