CN109612868A - A kind of AGM battery acid amount saturation degree test method - Google Patents

Abstract

A kind of AGM battery acid amount saturation degree test method includes the following steps: that battery is weighed: battery weight M2 after weighing battery weight M1 before recording acid adding and being melted into；It mends acid: mending excessive dilute sulfuric acid toward the every single lattice of battery, record each single lattice and mend sour quality m_{It mends}Sour mass M 3 is mended with total；It vacuumizes: battery being put into vacuum tank pressure maintaining 60s at -0.09Mpa, inside battery gas is extracted out；It takes out acid: each single lattice pole group top electrolyte is extracted using pipette；Again the whole vertical-lifts of all poles group, pole group is extracted after standing, battery trench bottom electrolyte is extracted, records each single lattice and take out sour quality m_{It takes out}Sour mass M 4 is taken out with total；Battery saturation, which is calculated, according to formula inhales acid amount A, saturation degree B, single lattice saturation degree C.The present invention can accurately measure battery saturation and inhale acid amount and saturation degree, and can reflect the otherness of each single lattice saturation degree, and easy to operate, the frock clamp of no complexity is eliminated because plastic shell deflection is to effect of saturation degree.

Description

A kind of AGM battery acid amount saturation degree test method

Technical field

The invention belongs to valve-regulated lead-acid battery production technical fields.More particularly to a kind of AGM battery acid amount saturation degree Test method.

Background technique

AGM battery acid amount saturation degree is the ratio between the practical acid content of battery and 100% saturation acid content, and saturation degree directly affects AGM battery performance early period and life performance.Saturation degree is too low so that electrolyte content is reduced, and cause battery capacity insufficient and use It is scrapped in the process because lacking liquid too early；Saturation degree is excessively high, and oxygen composite channel is caused to block, and it is compound that oxygen cannot smoothly arrive cathode, Cell sealing reaction efficiency is very low, causes battery capacity attenuation early period.The control of saturation degree is significant to AGM battery production, It is existing using frock clamp measurement partition pressurization inhale acidimeter calculate saturation inhale acid amount mode be unable to the practical pressure of actual response battery Saturation under power inhales acid amount, and use electricity trench bottom boring method to survey saturation and inhale acid and measure is influenced by time of repose, and terminal time is not Convenient for determining, measurement accuracy is limited.Reasonable saturation degree measurement method can accurately measure battery under current design state Saturation inhales acid amount, and then effectively accurately controls battery acid amount saturation degree in process of production, it is ensured that AGM battery performance.

Summary of the invention

AGM battery saturation can be accurately measured the purpose of the present invention is to provide one kind and inhales acid amount and saturation degree, and can be anti- The AGM battery acid amount saturation degree test method of the otherness of each single lattice saturation degree should be gone out.

Technical solution of the present invention includes the following steps:

1), battery is weighed: battery weight M2 after weighing battery weight M1 before recording acid adding and being melted into；

2) it, mends acid: mending excessive dilute sulfuric acid toward the every single lattice of battery, added dilute sulfuric acid quality is 1-2 times of battery design capacity, Added dilute sulfuric acid density should be close with battery design density, records each single lattice and mends sour quality m_{It mends}Sour mass M 3 is mended with total；

3) it, vacuumizes: battery being put into vacuum tank pressure maintaining 60s at -0.09Mpa, inside battery gas is extracted out, it is ensured that electrolysis Liquid fully penetrates into inside battery；

4), take out acid: the big lid of removal tilts to 45-90 ° using some angle of battery bottom as fulcrum, extracts each single lattice using pipette Pole group top electrolyte, battery should gradually be tilted to 90 ° from 45 ° during taking out acid, it is ensured that the extra electrolyte in top is not outer It leaks, be cleaned；Again all whole vertical-lift 10-30mm of pole group, pole group is extracted after standing 1min, extracts battery trench bottom electricity Liquid is solved, each single lattice is recorded and takes out sour quality m_{It takes out}Sour mass M 4 is taken out with total；

5), battery saturation is inhaled acid amount A, saturation degree B, single lattice saturation degree C and is calculated

Battery saturation inhales acid amount A=M2+M3-M1-M4+ Δ M

Battery saturation degree B=(M2-M1+ Δ M)/A

Cell negative terminal acid amount saturation degree C=1-(m_{It mends}-m_{It takes out}) * 6/A

Wherein Δ M is that green plate is converted to the total lead plaster variable quantity of ripe pole plate positive and negative anodes.

Compared with prior art, the method for the present invention can accurately measure AGM battery saturation suction acid amount and saturation degree, and can be anti- The otherness of each single lattice saturation degree should be gone out, easy to operate, the frock clamp of no complexity is used battery as subjects, eliminated Because plastic shell deflection is to effect of saturation degree.

Specific embodiment

The following content is a further detailed description of the present invention in conjunction with specific preferred embodiments, can not assert Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention Protection scope, the technology and indexing section that the present invention is used but is not illustrated, are the prior art.

Embodiment 1

By taking AGM60 battery as an example, battery weight 13.49kg before acid adding, battery weight is 17.296kg after chemical conversion, and chemical conversion front and back is just Cathode gross activity substance variation delta M is 125g；

1, it mends acid: adding the dilute sulfuric acid 100g/ lattice close with inside battery density of electrolyte toward the every single lattice of battery, it is total to mend sour quality For 600g；

2, it vacuumizes: battery being put into vacuum tank pressure maintaining 60s at -0.09Mpa, inside battery gas is extracted out, it is ensured that electrolysis Liquid fully penetrates into inside battery；

3, take out acid: the big lid of removal tilts to 45-90 ° using some angle of battery bottom as fulcrum, extracts each single lattice pole group top electricity Liquid is solved, battery should gradually be tilted to 90 ° from 45 ° during taking out acid, it is ensured that the extra electrolyte in top is not leaked outside, is cleaned； Again all whole vertical-lift 10-30mm of pole group, pole group is extracted after standing 1min, extracts battery trench bottom electrolyte, each It is respectively 64.4g, 67g, 66.8g, 63.8g, 69.2g, 67.2g that single lattice, which takes out sour quality, and total acid quality of taking out is 398.4g；

Can calculate battery saturation to inhale acid amount according to above-mentioned formula is 4.133kg, saturation degree 95.11%, each single lattice acid amount saturation Degree is 94.83%, 95.21%, 95.18%, 94.74%, 95.53%, 95.24%.

Claims (1)

1. a kind of AGM battery acid amount saturation degree test method, it is characterised in that be made of following step:

1), battery is weighed: battery weight M2 after weighing battery weight M1 before recording acid adding and being melted into；

2) it, mends acid: mending excessive dilute sulfuric acid toward the every single lattice of battery, added dilute sulfuric acid quality is 1-2 times of battery design capacity, Added dilute sulfuric acid density should be close with battery design density, records each single lattice and mends sour quality m_{It mends}Sour mass M 3 is mended with total；

3) it, vacuumizes: battery being put into vacuum tank pressure maintaining 60s at -0.09Mpa, inside battery gas is extracted out, it is ensured that electrolysis Liquid fully penetrates into inside battery；

4), take out acid: the big lid of removal tilts to 45-90 ° using some angle of battery bottom as fulcrum, extracts each single lattice using pipette Pole group top electrolyte, battery should gradually be tilted to 90 ° from 45 ° during taking out acid, it is ensured that the extra electrolyte in top is not outer It leaks, be cleaned；Again all whole vertical-lift 10-30mm of pole group, pole group is extracted after standing 1min, extracts battery trench bottom electricity Liquid is solved, each single lattice is recorded and takes out sour quality m_{It takes out}Sour mass M 4 is taken out with total；

5), battery saturation is inhaled acid amount A, saturation degree B, single lattice saturation degree C and is calculated:

Battery saturation inhales acid amount A=M2+M3-M1-M4+ Δ M；

Battery saturation degree B=(M2-M1+ Δ M)/A；

Cell negative terminal acid amount saturation degree C=1-(m_{It mends}-m_{It takes out}) 6/A；

Wherein Δ M is that green plate is converted to the total lead plaster variable quantity of ripe pole plate positive and negative anodes.