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Home >> Volvo >> 2008 >> S40 T-5, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 9 (Battery, Brakes, Central Electronic Module (CEM), Climate Units, Engine Management System (Ems), Diagnosis - Design And Function (644 Body)) >> Battery (All) >> Terminology >> Electrolyte

Battery (All): Terminology: Electrolyte

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In a lead battery, electrolyte consists of concentrated sulphuric acid and distilled water. Electrolyte is a liquid that conducts current and adds hydrogen and sulphate ions to the electro-chemical reaction during charging and discharging:

PbO2 + Pb + 2 H2 SO4 = 2 PbSO4 + 2 H2 O