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Definition and structure of gel battery

Views:11     Author:Site Editor     Publish Time: 2021-01-11      Origin:Site

It belongs to a development classification of lead-acid batteries. The simplest method is to add a gelling agent to sulfuric acid to make the sulfuric acid electro-liquid into a colloidal state. Batteries in which the electro-hydraulic is in a gel state are usually called gel batteries.


Broadly speaking, the difference between gel batteries and conventional lead-acid batteries is not only that the electro-hydraulic is changed to gel. 


For example, non-solid hydrocolloids belong to colloidal batteries from the perspective of electrochemical classification structure and characteristics. Another example is the adhesion of polymer materials in the grid, commonly known as ceramic grid, which can also be regarded as the application feature of gel batteries.


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Existing laboratories have added a targeted coupling agent to the plate formula, which greatly improves the reaction utilization of the plate active material. According to non-public data, it can reach a weight ratio energy level of 70wh/kg. Stage industrial practice and application examples of colloidal batteries to be industrialized. 


The non-disciplinary standard term for water-based glue is a name used to distinguish solid gels.


The understanding of colloid, academic classification and custom understanding are very different. According to the custom, a substance whose physical state is in a gel state at room temperature is called a colloid. In the chemical structure classification, it is defined as a substance whose basic structure of the dispersed phase is within the range of 1-100 nanometers.


It is the particle size of the colloid and its surfactant that determine the electrochemical characteristics.


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The history of colloidal batteries has been up and down, which is related to the development of colloidal materials and the maturity of technology. In the past three or two years, although nano-sized sols have been developed and there are more production practices for electrochemical applications of surfactants, it is difficult for manufacturers to select suitable gel-like colloids in a short period of time.


The water-based glue is designed as an intermediate product developed from an acid battery to a colloidal battery. 


Its characteristics are: elimination of the physical gelling framework, retaining the characteristics of functional polymer groups and surfactants, pure liquid state, and treated as a sulfuric acid additive when used , Suitable for making all lead storage batteries.


Advantages: no 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%, and the battery life is prolonged by 50-100%. The plate has strong resistance to sulfation. After sulfuric acid modification The corrosion to the grid is much smaller. The price is also cheaper than conventional colloids.


After using water-based glue additives, there is no need to add sodium sulfate, phosphoric acid, etc. to the sulfuric acid. Standard addition amount: 8% by volume.


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