🔍 Key Concepts
• Primary vs. secondary cells in batteries
• What happens to electrodes during discharge and recharge
• The difference between rechargeable and non‑rechargeable batteries
💭 Think About
• Think about common household disposable batteries: are they meant to be recharged, and why or why not?
• If a battery’s electrode material is physically consumed or eroded during use, what does that imply about restoring it by charging?
• Compare what is true about all primary cells versus what might be true only about some battery types.
✅ Before You Answer
• Clarify the definition of a primary cell (single‑use vs multi‑use).
• Check whether attempting to recharge a primary cell changes the fact of whether it can or cannot be properly recharged.
• Make sure each chosen option must be always true for primary cells, not just sometimes true.