干電(dian)(dian)池(chi)（Dry cell）是一種以糊狀(zhuang)電(dian)(dian)解液(ye)來產生直流(liu)電(dian)(dian)的(de)(de)化學電(dian)(dian)池(chi)（濕電(dian)(dian)池(chi)則為(wei)(wei)使(shi)用液(ye)態(tai)電(dian)(dian)解液(ye)的(de)(de)化學電(dian)(dian) 池(chi)），屬于一次電(dian)(dian)池(chi)，是日常生活之中為(wei)(wei)普遍(bian)使(shi)用，以及輕(qing)便(bian)的(de)(de)電(dian)(dian)池(chi)。它可(ke)在實驗(yan)室內自制的(de)(de)電(dian)(dian)池(chi)們可(ke)以使(shi)用于很多電(dian)(dian)器用品上。

普通(tong)干電(dian)池大(da)都是(shi)(shi)錳(meng)鋅電(dian)池，中(zhong)間是(shi)(shi)正極(ji)碳(tan)棒，外包石墨和二氧化錳(meng)的(de)混合物，再(zai)外是(shi)(shi)一層纖維網。網上(shang)涂有很厚的(de)電(dian)解質(zhi)糊(hu)，其構(gou)成(cheng)是(shi)(shi)氯化氨溶(rong)液(ye)和淀粉，另有少(shao)量防腐劑。

干電(dian)(dian)池(chi)屬(shu)于(yu)(yu)化(hua)學(xue)電(dian)(dian)源中的原電(dian)(dian)池(chi)，是一種一次性電(dian)(dian)池(chi)，它以二氧(yang)化(hua)錳為正(zheng)極，以鋅筒為負極，把(ba)化(hua)學(xue)能轉(zhuan)變為電(dian)(dian)能供(gong)給外電(dian)(dian)路。在化(hua)學(xue)反應中由于(yu)(yu)鋅比(bi)錳活潑，鋅失去電(dian)(dian)子被氧(yang)化(hua)，錳得到電(dian)(dian)子被還原。