Hurray for Batteries!

Energy – It’s Everywhere!

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Where can we find batteries?

In most of our favorite gadgets:

Watches

Flashlights

MP3 Players

Cell Phones

Computers

Electric/Hybrid Cars

Many, many others…

If you remove the batteries, these gadgets won’t work.

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Electricity from a Battery

Batteries provide electrical energy

The energy comes from a chemical reaction

A complete circuit is required

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Energy Stored in a Battery

Battery design stores energy.

Metals are separated to slow flow of electrons.

When connected to a device, electrons can flow.

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Where’s the Chemistry?

Batteries are made of two different metals.

Electrolyte surrounds the metals.

A chemical reaction occurs.

Electrons flow from one metal to the other.

In batteries, chemical energy is converted to electrical energy

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Primary and Secondary Batteries

Primary batteries (disposable batteries) are designed to be used once and thrown away..

Secondary batteries (rechargeable batteries) are designed to be recharged and used multiple times.

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Battery Sizes - AAA to ME8Z

Batteries come in all shapes and sizes.

The chemical reactions power our favorite things.

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Electric/Hybrid Cars

All Electric cars run on batteries only.Hybrid cars use gasoline and batteries.

Batteries are used to store electricity when power plants are not available.

Industrial Storage