WORKING PRINCIPLE

The chemical reaction equation for RESOURCE Battery during Charging and Discharging is as follows:

Charge

PbO2+2H2SO4+Pb

PbSO4+2H2O+PbSO4     (1)

Discharge

active substance

of positive plate

(charged state)

active substance

of negative plate

(discharged state)

active substance

of positive plate

(charged state)

active substance

of negative plate

(discharged state)

  1. At the termination of charging or when the battery is overcharged, Oxygen is produced on positive plate:

    2H2O=O2+4H++4e-                                 (2)

     

  2. During discharging, Oxygen reaches negative electrodes through the gas path on separator and reacts with active material spong-Pb (in charging state) and H2SO4, which, converts a part of active material spong-Pb into lead sulphate (in charging state) and restrains the generation of Hydrogen at the same time.

    2Pb+O2=2PbO                                         (3)

    PbO+H2SO4=PbSO4+H2O                        (4)

     

  3. Lead sulphate in discharged state due to reaction with oxygen returns to charged state again (spongy lead) through continuous charging.

    PbSO4+2H++2e-=Pb+H2SO2                     (5)

    Thus, the total reaction on negative electrode plate is:

    (3)+(4)+(5) that is: O2+4H++4e-=2H2O        (6)

    This is right the reversal course of the reaction (2) on positive electrode plate.

    In general, we can see that the Oxygen produced on the positive electrode plate due to decomposition water reacts with the active material on the negative electrode plate and deoxidize water. During this whole process, there is no loss of water in storage battery, therefore RESOURCE Battery can be designed to a sealed structure.

Storage Characteristics

Charging Characteristics

Relation Between Life And Temperature

Relation Between Cycle Life And Discharging Depth

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