干電(dian)(dian)池(chi)(chi)（Dry cell）是一(yi)種以糊狀電(dian)(dian)解液來產生直(zhi)流(liu)電(dian)(dian)的化學(xue)電(dian)(dian)池(chi)(chi)（濕電(dian)(dian)池(chi)(chi)則為使用液態(tai)電(dian)(dian)解液的化學(xue)電(dian)(dian) 池(chi)(chi)），屬于(yu)一(yi)次電(dian)(dian)池(chi)(chi)，是日常(chang)生活(huo)之中為普遍使用，以及輕便(bian)的電(dian)(dian)池(chi)(chi)。它(ta)可在(zai)實驗室(shi)內自制的電(dian)(dian)池(chi)(chi)們可以使用于(yu)很多電(dian)(dian)器用品上。

普通干電(dian)池大都是(shi)錳(meng)鋅電(dian)池，中間是(shi)正極碳棒(bang)，外(wai)包石墨和二氧化(hua)錳(meng)的(de)(de)混合物，再外(wai)是(shi)一(yi)層纖維網。網上涂有很厚的(de)(de)電(dian)解(jie)質(zhi)糊，其(qi)構成是(shi)氯(lv)化(hua)氨溶液(ye)和淀(dian)粉，另有少量防腐劑。

干電(dian)(dian)(dian)(dian)池屬于(yu)化(hua)學電(dian)(dian)(dian)(dian)源中(zhong)的原電(dian)(dian)(dian)(dian)池，是一種一次(ci)性電(dian)(dian)(dian)(dian)池，它以二(er)氧(yang)化(hua)錳(meng)為正極，以鋅(xin)筒為負極，把(ba)化(hua)學能轉變為電(dian)(dian)(dian)(dian)能供(gong)給外電(dian)(dian)(dian)(dian)路。在(zai)化(hua)學反應中(zhong)由(you)于(yu)鋅(xin)比錳(meng)活潑(po)，鋅(xin)失去(qu)電(dian)(dian)(dian)(dian)子(zi)被氧(yang)化(hua)，錳(meng)得到電(dian)(dian)(dian)(dian)子(zi)被還原。