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What's so good about gel batteries?

by:Vglory      2021-04-04
Gel batteries belong to a development category of lead-acid batteries. The method is to add a gelling agent to sulfuric acid to make the sulfuric acid electro-liquid become colloidal. Batteries in which the electro-hydraulic is in a gel state are usually called gel batteries. The difference between the gel battery and the conventional lead-acid battery is from the initial understanding of electrolyte gelation to the study of the electrochemical characteristics of the electrolyte basic structure, as well as the application and promotion of grids and active materials. Its most important feature is: use a small industrial cost to produce a better quality battery, its discharge curve is straight, the inflection point is high, its energy and power are more than 20% larger than that of conventional lead-acid batteries, and its life is generally conventional lead. The acid battery is about twice as long, and its high temperature and low temperature characteristics are much better. The definition belongs to a development classification of lead-acid batteries. The easiest way is to add a gelling agent to sulfuric acid to make the sulfuric acid electro-hydraulic into a colloidal state. Batteries in which the electro-hydraulic is in a gel state are usually called gel batteries. The internal structure is 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 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 formula, which greatly improves the reaction utilization rate of the plate active material. According to non-public information, it can reach a weight ratio energy level of 70wh/kg. Application examples of gel batteries that are being practiced in the stage of industrialization and are yet 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. Colloidal batteries have experienced ups and downs in history, which are related to the development of colloidal materials and the maturity of technology. In the past three or two years, although nano-scale sols have been developed and there are more processing practices for the electrochemical application 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: The common industrial problems of colloidal batteries will not be induced. The manufacturing process is exactly the same as that of acid batteries. After use, the capacity will be increased by 5-15%, and the battery life will be extended 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. The characteristics have been developed from the initial understanding of electrolyte gelation to the study of the electrochemical characteristics of the basic structure of the electrolyte, as well as the application and promotion of grids and active materials. The most important features of colloidal batteries are as follows: ①: The inside of colloidal batteries is mainly a porous SiO2 mesh structure with a large number of tiny gaps, which can smoothly migrate the oxygen generated from the positive electrode of the battery to the negative electrode plate and facilitate the absorption of the negative electrode. ②: The amount of acid contained 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 colloidal battery is relatively large, and generally does not have good high-current discharge characteristics; ④: The heat is easy to diffuse and not easy to heat up , The probability of thermal runaway is very small; the basic characteristics adopt flat plate and special lead paste formula, colloidal electrolyte, no liquid layering, no need for balanced charging, self-discharge rate is stronger than general lead-acid batteries, and battery deep discharge capacity greatly exceeds Ordinary storage batteries have greatly enhanced temperature adaptability! Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete it. Previous post: Do you know how long the life of lithium-ion batteries is?
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