In addition to the electrode materials themselves, what else might we expect to find in the positive-electrode region of a lithium-ion cell? Select all that apply.

All Questions › Category: Battery Management System › In addition to the electrode materials themselves, what else might we expect to find in the positive-electrode region of a lithium-ion cell? Select all that apply.
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Chetan Shidling Staff asked 5 years ago

Options:

  1. Electrolyte.
  2. Binders.
  3. Conductive additives.
  4. Electrolyte additives.
1 Answers
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Chetan Shidling Staff answered 5 years ago

All options are correct answers:

  1. Electrolyte.(Yes, the electrolyte permeates the cell, including the voids between the particles in the positive electrode.)
  2. Binders.(Yes. Binders such as polyvinylidene difluoride (PVDF) are often used to “glue together” particles so that the overall electrode structure does not disintegrate under the repeated stresses of cycling.)
  3. Conductive additives.(Yes. Many positive-electrode active materials do not conduct electron current very well, and so conductive additives such as carbon black are often added.)
  4. Electrolyte additives.(Yes. Proprietary compounds are often added to the electrolyte to improve performance and to slow down aging processes.)