Lead storage battery — a secondary batteryलेड संचायक बैटरी — द्वितीयक बैटरीLead storage battery — a secondary battery

NCERT Fig 2.10 · Class 12 Chemistry · Chapter 2 · interactive diagram

Parts and what they mean

• Lead — anode (−) (लेड — ऐनोड (−)) — Discharge: Pb(s) + SO₄²⁻(aq) → PbSO₄(s) + 2e⁻.
• Lead grid packed with PbO₂ — cathode (+) (PbO₂ से भरी लेड जाली — कैथोड (+)) — Discharge: PbO₂(s) + SO₄²⁻(aq) + 4H⁺(aq) + 2e⁻ → PbSO₄(s) + 2H₂O(l).
• 38% sulphuric acid — electrolyte (38% सल्फ़्यूरिक अम्ल — विद्युत-अपघट्य) — Overall: Pb + PbO₂ + 2H₂SO₄ → 2PbSO₄ + 2H₂O. On charging the reaction is reversed: PbSO₄ on the anode and cathode becomes Pb and PbO₂. Used in automobiles and inverters.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 2.10. Report a mistake