batteries Flashcards
(23 cards)
What is the anode in a Daniel Cell?
Zinc (Zn)
What is the cathode in a Daniel Cell?
Copper (Cu)
What electrolyte does a Daniel Cell use?
Dilute sulfuric acid or copper sulfate solution
What gas is used at the anode in a Fuel Cell?
Hydrogen (H₂)
What gas is used at the cathode in a Fuel Cell?
Oxygen (O₂)
What electrolyte is found in a Fuel Cell?
Acidic or alkaline solution (like phosphoric acid)
What is the anode in a Mercury Cell?
Zinc amalgam (Zn-Hg)
What is the cathode in a Mercury Cell?
Mercury oxide (HgO)
What electrolyte does a Mercury Cell use?
Alkaline solution (KOH)
What is the anode in a Lead Acid Battery?
Lead (Pb)
What is the cathode in a Lead Acid Battery?
Lead dioxide (PbO₂)
What electrolyte is in a Lead Acid Battery?
Dilute sulfuric acid (H₂SO₄)
What is the anode in a Lithium-Ion Battery?
Lithium metal or lithium compound
What is the cathode in a Lithium-Ion Battery?
Metal oxide (e.g., LiCoO₂)
What electrolyte does a Lithium-Ion Battery use?
Organic liquid electrolyte
How does a Daniel Cell produce electricity?
Zinc oxidizes, copper ions reduce.
How do Lithium-Ion Batteries work?
Lithium ions move between electrodes during charge and discharge.
If zinc is the anode, which battery am I talking about?
Daniel Cell or Mercury Cell (both use zinc at anode!)
Which battery uses oxygen gas at the cathode?
Fuel Cell
Which battery’s electrolyte is not acidic or aqueous but organic?
Lithium-Ion Battery
Which battery produces minimal gas during operation and uses a mercury compound?
Mercury Cell
Lead dioxide appears at which electrode in which battery?
Cathode in Lead Acid Battery
Which battery shuttles ions back and forth during charging instead of running down?
Lithium-Ion Battery
