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How can the cycle life of lithium-sulfur batteries be improved in practical applications?

hard📝 Application Q8 of 15
EV Technology - Future Battery Technologies
How can the cycle life of lithium-sulfur batteries be improved in practical applications?
ABy removing the electrolyte completely
BBy using protective coatings to trap sulfur compounds
CBy replacing lithium with sodium metal
DBy increasing the sulfur content beyond 100%
Step-by-Step Solution
Solution:
  1. Step 1: Identify common improvements

    Protective coatings help trap sulfur and reduce loss during cycling.
  2. Step 2: Evaluate other options

    Increasing sulfur beyond 100% is impossible; replacing lithium changes chemistry; removing electrolyte stops ion flow.
  3. Final Answer:

    By using protective coatings to trap sulfur compounds -> Option B
  4. Quick Check:

    Protective coatings improve cycle life [OK]
Quick Trick: Coatings trap sulfur to extend battery life [OK]
Common Mistakes:
  • Thinking sulfur content can exceed 100%
  • Confusing lithium with sodium batteries
  • Ignoring electrolyte necessity

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