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Why can faster charging demand a different battery design?

Putting more energy into a battery and getting energy into it quickly are different design goals. A thicker electrode can hold more active material while making the journey through that material harder during fast charging.

5–7 min

Questions you could explore

  • What does a battery designer trade when shortening that journey?
  • How do ion movement and heat affect the limits of charging a battery quickly?

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Energy

A solar cell's route from light to electricity

Shining sunlight onto a piece of silicon is only the first step in making solar power. When incoming photons knock electrons loose inside the semiconductor, an internal electric field built into the solar cell's layers must separate those charges and guide them into an external circuit before they simply recombine.

4–5 min
Why can faster charging demand a different battery design? | Speech Topic | speaking.app