🔍 Key Concepts

• Examine the labeled parts in views A and B, especially the layers located directly between the positive plates and negative plates • Think about which component’s purpose is insulation/spacing between opposite plates while still allowing electrolyte flow • Distinguish between components that separate cells from each other versus components that separate plates within the same cell

💭 Think About

• Which part in the illustration is shown as a thin layer sandwiched between each positive and negative plate pack? • Which components mainly provide mechanical support or external containment, rather than directly touching the plates? • Among the choices, which item must be porous enough to let electrolyte pass, yet solid enough to keep plates from touching and shorting?

✅ Before You Answer

• Verify in figure B which label points to the material between the plate packs (note the word porous or similar) • Confirm that cell dividers in view A are between whole cells, not between individual positive and negative plates in a single cell • Eliminate any components whose main function is electrical connection (not insulation), such as straps or terminals