Chapter 8: Electrochemical energy conversion

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Draw a battery

Cathode, anode, electron flow, electrolyte

What constitutes a galvanic cell?

Two electrodes immersed in an electrolyte

What is the electrolyte? What are the most common types?

liquid, solid, or paste; any pH; commonly NaOH or KOH

How is electricity produced in a galvanic cell?

By consuming the anode and building up the cathode

How is a battery recharged?

Apply electricity to re-build the consumed anode

What is lithium battery's best (and worst) trait?

High specific energy = lighter/lower per use costs, but low melting temp and reactivity to water make it dangerous

Is recycling batteries attractive

No; takes 6-10 times more energy to recycle one than to make one from scratch

How is a fuel cell different from a galvanic cell?

Rely on oxidation to power the cell; anode is not "eaten up"; instead, fuel is fed to the cell

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