Lead-acid battery discharge and temperature relationship

Do not wait for the gel battery to run out of charge and recharge it. After the discharge, it should be charged in time.

You should try to use a better quality charger, which will help to improve the life of the gel battery.

The battery should be fully charged, and the storage should be cool and dry. Do not get close to the heat source, and do not expose it to direct sunlight. Power should be replenished before storage for more than one month, and deep charge and discharge should be done once for more than three months.

When charging in the hot weather, please pay attention to the battery temperature is not too high, do not charge the battery, if the hand touches too hot, you can stop and recharge. In winter, the temperature is low, the battery is easily charged, and the charging time (for example, 10%) can be appropriately extended.

If it is a group of batteries, when the problem is found, only the problem should be replaced in time, which can extend the life of the whole group.

The battery capacity, voltage and temperature have a certain relationship. The best battery temperature is 25 degrees. When the temperature drops by 1 degree, the relative capacity decreases by about 0.8%, and when the temperature rises, the capacity will also recover.

Relatively, in the case of trying to improve the performance of the battery in a low temperature environment, the density of the electrolyte can be increased, so that the performance of the battery in a low temperature environment can be improved, but the corresponding density must be adjusted after the temperature rises. Come here, because the acidity will be too high, it will corrode the plate, which will have a corresponding impact on battery life and use time.

Colloidal batteries are a developmental classification of lead-acid batteries by adding a gelling agent to the sulfuric acid to make the sulfuric acid electrolyzed into a colloidal state. A battery in which electro-hydraulic is colloidal is often referred to as a colloidal battery. The difference between colloidal batteries and conventional lead-acid batteries is further developed from the initial understanding of electrolyte gelation to the electrochemical properties of electrolyte substrates and their application in grids and active materials. Its most important feature is: to produce a better battery with a small industrial cost, its discharge curve is straight, the turning point is high, its energy and power are more than 20% larger than conventional lead-acid batteries, and the life expectancy is also conventional lead. The acid battery is about twice as long, and the high temperature and low temperature characteristics are much better.

A developmental classification of lead-acid batteries, the simplest method is to add a gelling agent to the sulfuric acid to make the sulfuric acid electro-hydraulic into a colloidal state. A battery in which electro-hydraulic is colloidal is often referred to as a colloidal battery.

Broadly speaking, the difference between a colloidal battery and a conventional lead-acid battery is not only that the electro-hydraulic is changed to gelatinous. For example, non-solidified aqueous colloids are the same colloidal battery from the electrochemical classification structure and characteristics. Another example is the attachment of polymer materials in the grid, commonly known as ceramic grids, which can also be regarded as the application characteristics of gel batteries. Existing laboratories have added a targeted coupling agent to the plate formulation, which greatly improved the reaction utilization rate of the active material of the plate. According to non-public data, the energy ratio of 70wh/kg can be achieved. These are all examples of industrial practice at the present stage and the application of colloidal batteries to be industrialized.

Colloidal battery

Water-based rubber non-disciplinary terminology is a name used to distinguish solidified colloids.

The understanding of colloids, academic classification and customary understanding are very different. Conventional beliefs are that a substance whose physical state is in a gel state at normal temperature is called a colloid, and in the chemical structure classification, it is defined as a substance in which the dispersed phase basic structure is in the range of 1-100 nm.

The electrochemical properties are determined by the colloidal particle size and its surfactant.

Colloidal batteries have been floating in history, related to the development of materials and the maturity of the technology. In the past three or two years, although nano-sized sols have been developed, there are more production practices for the electrochemical application of surfactants, but it is difficult for manufacturers to select suitable gel-state colloids in a short period of time.

Water-based adhesive is a kind of intermediate product developed from acid battery to colloid battery. It is characterized by the elimination of physical gelling skeleton, retention of functional polymer group characteristics and surfactant, pure liquid, and regarded as a kind of sulfuric acid additive when used, suitable for making all lead batteries.

Advantages: It does not produce the common industrial problems of colloidal batteries. The manufacturing process is exactly the same as that of acid batteries. After use, the capacity is increased by 5-15%, the battery life is extended by 50-100%, the anti-plate sulphation ability is strong, and the sulfuric acid is modified. The corrosion resistance to the grid is much smaller. The price is also cheaper than conventional colloids.

After the use of the water-based glue additive, it is not necessary to add sodium sulfate, phosphoric acid or the like to the sulfuric acid. Standard addition amount: 8% by volume. [1]

From the initial understanding of electrolyte gelation, further development to the electrochemical properties of the electrolyte infrastructure, as well as the application of the application in grids and active materials. [1]

The most important features of colloidal batteries are the following:

1: The inside of the colloidal battery is mainly a porous network structure of SiO2, and there are a large number of tiny gaps, which can make the oxygen generated by the positive electrode of the battery smoothly migrate to the negative electrode plate, and facilitate the absorption and combination of the negative electrode;

2: The amount of acid in the colloidal battery is large, so its capacity is basically the same as that of the AGM battery;

3: The internal resistance of the gel battery is large, and generally does not have good high current discharge characteristics;

4: The heat is easy to spread, it is not easy to heat up, and the probability of thermal runaway is small;

It adopts flat plate and special lead paste formula, colloidal electrolyte, no liquid stratification, no need for balanced charging and self-discharge rate is stronger than ordinary lead-acid battery, battery deep discharge capacity greatly exceeds ordinary battery. The adaptability to temperature is greatly enhanced!

At present, the common colloidal batteries in China are 50AH~3000AH of 2V series, 100AH\200AH of 6V series, 33AH~250AH of 12V series.

The page contains the contents of the machine translation.