A battery consists of some number of voltaic cells. Each cell consists of two half-cells connected in series by a conductive electrolyte containing metal cations.

Explanation:

A battery is an electrochemical device that stores and provides electrical energy. It is commonly used in various electronic devices, such as mobile phones, laptops, and cars, to power them. A battery consists of one or more cells, which are the basic building blocks of a battery.

Cells:
A cell is a device that converts chemical energy into electrical energy. It consists of two electrodes, an electrolyte, and a separator. The electrodes are usually made of different materials, such as zinc and copper, and they are immersed in an electrolyte solution. The separator prevents the electrodes from coming into direct contact with each other.

Single Cell:
A single cell battery, also known as a primary cell, contains only one cell. It is a self-contained power source that cannot be recharged. Examples of single cell batteries include alkaline batteries, zinc-carbon batteries, and silver oxide batteries. These batteries are commonly used in devices that require low power, such as remote controls, flashlights, and toys.

Multiple Cells:
On the other hand, a multiple cell battery, also known as a secondary cell or rechargeable battery, consists of two or more cells. These batteries can be recharged and used multiple times. Examples of multiple cell batteries include lithium-ion batteries, nickel-cadmium batteries, and lead-acid batteries. They are used in devices that require higher power, such as smartphones, laptops, electric vehicles, and solar power systems.

Conclusion:
In conclusion, a battery consists of two or more cells. While single cell batteries have only one cell and are not rechargeable, multiple cell batteries have two or more cells and can be recharged. It is important to consider the type and number of cells when choosing a battery for a specific device to ensure proper power supply and compatibility.

A battery is a combination of two or more cells. The cells can be arranged in parallel or series.