Lithium-ion Battery — Questions and answers

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What material did M. Stanley Whittingham use as a cathode in his early battery work?

Choices

  1. Plastic wrap
  2. Titanium disulfide ✓
  3. Cotton balls
  4. Water

Answer: Titanium disulfide

From page 3

What new material did John B. Goodenough discover for the battery's cathode to get a higher voltage?

Choices

  1. Chocolate chips
  2. Cobalt oxide ✓
  3. Sand paper
  4. Feathers

Answer: Cobalt oxide

From page 4

When a lithium-ion battery is charging, where do the lithium ions move to?

Choices

  1. They move from the anode to the cathode.
  2. They move from the cathode to the anode. ✓
  3. They stay completely still.
  4. They evaporate into the air.

Answer: They move from the cathode to the anode.

From page 6

What happens to the stored electrons when a lithium-ion battery discharges?

Choices

  1. They turn into little lights.
  2. They flow through the external circuit to power a device. ✓
  3. They disappear completely.
  4. They become bigger and stronger.

Answer: They flow through the external circuit to power a device.

From page 7

What did the lithium-ion battery help revolutionize in the early 1990s?

Choices

  1. Large, stationary factory machines.
  2. Bulky household appliances like refrigerators.
  3. Portable electronics like smartphones and laptops. ✓
  4. Old-fashioned typewriters.

Answer: Portable electronics like smartphones and laptops.

From page 9