Narada Power Source CO., LTD TT Series Battery Operation Manual
7. Working Principal
O
2H
2PbSO
SO
2H
PbO
Pb
2
4
4
2
2
+
+
+
CHA
DCH
The chemical reaction takes place in lead acid battery is as follows:
Following by-reaction A takes place in ordinary lead acid battery:
A
.......
..........
..........
O
H
O
2H
2
2
2
↑
+
↑
→
This by-reaction makes water loss gradually and pure water need to be added regularly to
keep the battery operate normally.
TT battery adopts design of barren-liquor and utilizes AGM (micro porous glass fiber)
separator. Thus there is a path existing between the positive and the negative. Also special alloy
grid is chosen to increase vent hydrogen over-potential gassing on the negative plate, which
prevent generation of Hydrogen. Otherwise, the oxygen generated from positive diffuses through
separator to the negative and the oxygen gas reacts quickly and is recombined into water. The
reactions are as follows B and C:
：
B
.......
..........
..........
2PbO
O
2Pb
2
→
+
C
......
O
H
PbSO
SO
H
PbO
2
4
4
2
+
→
+
So it is possible to build TT battery in sealed structure.
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