Lithium battery: The positive electrode plate is spheroidal carbon, and the negative electrode is a lithium ion compound. Currently, there are two types, lithium cobalt oxide and lithium iron phosphate. There are two kinds of structures, one is wound type, and the other is laminated type. It is a wound type, which is a layer of positive electrode sheet with a negative electrode sheet with an insulating permeable membrane in the middle, which is then rolled up and placed in a package or bag; the laminated type is a layer of positive electrode and a separator of the same shape. A layer of negative electrode and a separator are stacked in the package. The voltage of the lithium battery is generally 3.6V and 3.7V.
Dry battery: A chemical battery that uses a paste electrolyte to generate direct current (a wet battery is a chemical battery that uses a liquid electrolyte). It is roughly divided into a primary battery and a battery. It is commonly used in daily life and is light. battery. They can be used on many electrical appliances.