what is inside a battery
What happens inside of a battery (the chemistry)[change | change source] A Battery can be one cell or many cells. Each cell has an anode, cathode and electrolyte. The electrolyte is the main material inside the battery. It is often a type of acid, and can be dangerous to touch. The anode reacts with the electrolyte to produce electrons (this is the negative or - end). The cathode reacts with the electrolyte and takes electrons (this is the positive or + end).