What is a Battery?

A battery is a device that stores electrical energy in the form of chemical energy and provides electrical power when needed. Batteries are generally classified into two main types: primary (non-rechargeable) and secondary (rechargeable) batteries. Secondary batteries can be recharged and used repeatedly, making them particularly popular in renewable energy systems, electric vehicles, and as backup power sources for homes and industries.

Batteries are commonly used to balance the supply and demand of electricity, especially in areas with unstable power supplies or as backup power during emergencies. There are various types of batteries, including lithium-ion, lead-acid, and sodium-ion batteries, each with its own characteristics, such as charging speed, capacity, lifespan, and environmental impact. Furthermore, batteries are often integrated with the power grid to support peak shifting and energy smoothing, playing an essential role in the widespread adoption of renewable energy sources like solar and wind power.

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