납축전지 방전

Pb + PbO2 + 2H2SO4 → 2PbSO4 + 2H2O

개요

During discharge, lead is oxidized to PbSO₄ at the anode while PbO₂ is reduced to PbSO₄ at the cathode, consuming sulfuric acid and producing water. The cell voltage is about 2.1 V, and six cells in series give the standard 12.6 V car battery. Invented by Gaston Planté in 1859, it remains the world's most recycled product.

참여 물질

역할 물질 계수 상태
반응물 Pb 1 (s)
반응물 황산 H₂SO₄ 2 (aq)
생성물 H₂O 2 (l)

일상 속 예시

The 12V battery that starts your car every morning uses this exact lead-acid chemistry, invented over 160 years ago.

산업적 중요성

자동차 시동용 배터리(SLI), 지게차, UPS(무정전 전원 장치), 태양광 에너지 저장 시스템에 광범위하게 사용됩니다. 낮은 비용과 우수한 전류 공급 능력이 장점입니다.

자주 묻는 질문

What is the equation for 납축전지 방전?
The balanced equation is: Pb + PbO₂ + 2H₂SO₄ → 2PbSO₄ + 2H₂O.
What type of reaction is 납축전지 방전?
납축전지 방전 is a 전기화학 reaction. It is reversible under certain conditions.
Is 납축전지 방전 exothermic or endothermic?
납축전지 방전 is exothermic (releases energy). The enthalpy change (ΔH) is -359.0 kJ/mol.