电池分有象太阳能电池、热电池或原子能电池那样把光能和热能直接变成电能的物理电池和利用电化学反应的化学电池两种。物理电池多用于特殊用途,通常说的电池指的是化学电池。化学电池,又分有称为一次电池的如锰干电池,其化学反应只是放电方向的和称为二次电池的如铅蓄电池,可以反复充放电的两种。最近,在研制可以一次充电的碱锰干电池的同时,由于二次电池的密闭技术也在发展,因此,过去那种携带式的为一次电池,移动或固定用的为二次电池的概念也正在改变,它的分类比较困难。 The battery points like solar cells, thermal batteries or atomic batteries as light and heat into electricity directly into the physical battery and the use of electrochemical reaction of two chemical batteries. More physical battery for special purposes, the battery is usually said that the chemical battery. Chemical batteries, there are sub-known as a battery such as manganese batteries, the chemical reaction is just the discharge direction and called secondary batteries such as lead batteries, you can repeatedly charge and discharge two. Recently, in the development of a rechargeable alkaline manganese batteries at the same time, as a secondary battery airtight technology is also developing, so the past that is a portable battery, mobile or fixed with the concept of secondary batteries are Change, its classification is more difficult.