Electrochemical energy everywhere Electrochemical energy is produced in every cell of every plant and animal. An animal’s nervous system sends its signals by means of electrochemical reactions. Virtually every electrochemical process and its technological application has a role in modern medicine. The power of electricity in living beings In the movie Frankenstein, the power of electricity turns a collection of dead body parts into a living monster. Although this use of electricity is still fictional, electrochemical forces are essential to…
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Leading to vast new applications Further innovations in battery design, including novel battery and fuel cell technology, has led to vast new applications. Secondary cells A secondary cell, or storage battery, can function as either a voltaic or an electrolytic cell. When its electrodes are connected to a device that uses electricity, it functions like any other battery. When a current is fed through it, the electrochemical reactions are reversed, replenishing the battery’s strength. Lead-acid storage batteries: Getting started In…
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The energy sources that have changed our world From primary cells to novel materials, the ability to generate power with energy sources such as batteries has changed our everyday world. A world without batteries Imagine a world without batteries! A teenager walks outside wearing headphones, tethered to home by a lengthy extension cord. An old man winds his pacemaker like a pocket watch. With no storage batteries to equalize power demands, air conditioners overwhelm the city’s electrical grid. In thousands…
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