船用蓄电池的电解液相对密度与放电容量

随着船舶蓄电池在放电过程进行中，其电解液相对密度也在不断地下降，可以利用电解液相对密度推知其放电量。根据放电反应，电解液中H₂SO₄ 消耗在两极活性物质的反应上，它生成水与放电产物PbSO₄ .电解液中H₂SO₄的消耗与放电电量成比例，即每安时消耗3 . 6579 H₂SO₄就生成0.672g水。

船用蓄电池浓度与相对密度的关系，在电池使用的HZ 50 。浓度范围内有一个如下近似于二次函数的关系式。
           S20 = 3.076X10^-1P² + 6.439 X 10^-1P+ 0.998
可以从电解液相对密度的变化量与放电量之间得到一定关系。但电解液相对密度又与温度变化存在一定关系，电池电解液温度通常以20℃ 为基准，实际使用时并非20℃ ，因此20℃ 以外的温度可以换算为20℃ 时相对密度值。
S20=S_t+0.0007（t-20）
式中，S₂₀为换算成20℃ 时相对密度值；S_t为在t℃ 时实测相对密度值；t为电解液温度，℃ 。

Along with ships storage battery in progress in the process of turning on electricity, the its electrolyte opposite density is constantly also descending, can make use of opposite density of electrolyte to push to know that it turns on electricity quantity.According to turning on electricity reaction, the H2 SO4 consumes on the reaction of two most live materials in the electrolyte, it born water with turn on electricity the outcome PbSO4.In the electrolyte the depletion of H2 SO4 with turn on electricity an electricity to measure into a proportion, namely each Anne consume 3.6579H2 SO4 born 0.672 g water.

The ship is used the relationship with opposite density of the storage battery density, use in the battery of HZ 50.There is a relation type that as follows is looked like to a quadratic function inside the density scope.
S20 = 3.076X10-1P2 + 6.439 X 10-1P+ 0.998
Can the amount of variety from the electrolyte opposite density with turn on electricity an of quantity to get certain relation.But electrolyte the opposite density change with temperature to exist again certain relation, the battery electrolyte temperature usually takes 20 ℃ as basis and physically use not 20 ℃ , therefore 20 ℃ outside of the temperature can convert to 20 ℃ opposite density value.
The S is 20= Sts+0.0007(t-20)
In the type, S20 for convert to 20 ℃ opposite density value;The St is worth for in the t ℃ actually measuring opposite density;The t is an electrolyte temperature, ℃.

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