Abt GFMJ-2000 Техническое руководство - Страница 7

Просмотреть онлайн или скачать pdf Техническое руководство для Аксессуары для фотоаппаратов Abt GFMJ-2000. Abt GFMJ-2000 17 страниц. Gel high integrity valve-regulated sealed lead acid battery

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Technology

Working and sealing principle
In the charge and discharge process of ABT-GEL battery, it occurs to below reaction in the battery inside
PbO
+2H
SO
+ Pb
2
2
4
At the later stage of charging or over-charge condition, oxygen would be evolved from positive electrode
and hydrogen would be evolved from negative electrode. The negative electrode is made of high pure
lead-calcium alloy, which inhibit the hydrogen evolution. The batteries apply special gel electrolyte
technology, and the gel is with three dimensional net porous structures, and also with some tiny cracks
as gas passage. The oxygen from positive electrode get to negative through the special gel and rapidly
react with the spongy lead existing on the negative electrode and produce water. This process is called
gas recombination and no water loss during it. The battery is sealed in this way and achieves
maintenance free.
Reaction in the process
+
-
1. H
O→2H
+1/2O
+2e
2
2
2. O
+2H
SO
+2Pb=2PbSO
2
2
4
+
-
→Pb+H
3. PbSO
+2H
+2e
4
Discharge
PbSO
+ 2H
4
Charge
+2H
O
4
2
SO
2
4
O + PbSO
2
4
05