干電(dian)(dian)(dian)池(chi)（Dry cell）是一種以(yi)糊狀電(dian)(dian)(dian)解(jie)液(ye)來產生(sheng)直流電(dian)(dian)(dian)的(de)(de)化學(xue)電(dian)(dian)(dian)池(chi)（濕電(dian)(dian)(dian)池(chi)則(ze)為使用液(ye)態電(dian)(dian)(dian)解(jie)液(ye)的(de)(de)化學(xue)電(dian)(dian)(dian) 池(chi)），屬于一次(ci)電(dian)(dian)(dian)池(chi)，是日常(chang)生(sheng)活之(zhi)中為普遍使用，以(yi)及輕(qing)便(bian)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)使用于很多電(dian)(dian)(dian)器用品上。

普通(tong)干電池大都是(shi)(shi)錳鋅電池，中間是(shi)(shi)正極(ji)碳棒，外(wai)包石墨和二氧化錳的混(hun)合物，再外(wai)是(shi)(shi)一層(ceng)纖維(wei)網(wang)。網(wang)上涂有(you)很(hen)厚的電解質(zhi)糊(hu)，其構成是(shi)(shi)氯化氨溶液和淀粉，另有(you)少量防腐劑。

干電(dian)(dian)(dian)池屬(shu)于(yu)化學電(dian)(dian)(dian)源中(zhong)的(de)原(yuan)電(dian)(dian)(dian)池，是(shi)一種一次(ci)性(xing)電(dian)(dian)(dian)池，它以二氧化錳為(wei)正極(ji)(ji)，以鋅(xin)筒為(wei)負極(ji)(ji)，把化學能轉(zhuan)變為(wei)電(dian)(dian)(dian)能供給外電(dian)(dian)(dian)路。在化學反應中(zhong)由于(yu)鋅(xin)比錳活(huo)潑，鋅(xin)失去電(dian)(dian)(dian)子(zi)被氧化，錳得到電(dian)(dian)(dian)子(zi)被還原(yuan)。