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铅酸蓄电池工作原理交互演示
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图例说明

H⁺
SO₄²⁻
e⁻
H₂O
PbSO₄
负极 (Pb) → PbSO₄
正极 (PbO₂) → PbSO₄
总反应
Pb + PbO₂ + 2H₂SO₄ → 2PbSO₄ + 2H₂O
电子移动
电子(e⁻)经外电路从负极流向正极
(点击隐藏)
负极反应 (氧化反应)
Pb + SO₄²⁻ - 2e⁻ → PbSO₄
吸引SO₄²⁻，Pb失去电子生成PbSO₄沉淀
(点击隐藏)
正极反应 (还原反应)
PbO₂ + 4H⁺ + SO₄²⁻ + 2e⁻ → PbSO₄ + 2H₂O
吸引H⁺，PbO₂得到电子生成PbSO₄和水
(点击隐藏)

🎮 实验控制

电量 100%
端电压
2.10 V
硫酸浓度
1.28

点击上方按钮查看各部分反应细节。放电时，Pb与PbO₂均转化为PbSO₄，硫酸浓度降低。

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