Comparison of self-baking electrode paste and traditional electrode materials
In the field of electrode materials, self-baking electrode pastes (also known as self-baking electrodes) and traditional electrode materials have their own unique advantages and applicable scenarios.This article will delve into the production technology, performance characteristics and application fields of these two types of electrode materials, and conduct comparative analysis.
Self-baking electrode paste
Self-baking electrode paste is mainly made of anthracite, coke, asphalt and tar as raw materials.At a certain temperature, these raw materials are processed into electrode paste, and then loaded into the electrode shell that has been installed on the electric furnace.In the production process of an electric furnace, the joule heat generated when the current passes through and the heat transfer in the furnace cause the electrode paste to sinter and coker on its own to form an electrode.This kind of electrode can be used continuously, sintered and formed while using the long side, which has the characteristics of simple process and low cost.
The sintering process of self-baking electrode paste is a complex process of physical and chemical changes.When the electrode paste is above 400℃, a large amount of volatiles escape, and the electrode begins to sinter.When the temperature reaches 700-800℃, the binder becomes residual carbon, and the compressive strength of the electrode reaches its maximum value.At the same time, the resistivity of the electrode decreases significantly with the increase of temperature, so that the electrical conductivity of the electrode can be improved.
Self-baking electrode pastes are widely used in industrial fields such as ferroalloy electric furnaces and calcium carbide furnaces.Its manufacturing cost is only one-eighth of that of graphite electrodes and one-third of that of carbon electrodes, and it is easy to adjust the length of the electrodes to meet different production needs.However, self-baking electrode pastes can easily carburize the alloy, and the electrode shell iron sheet can also easily bring the alloy into the iron. Therefore, it is necessary to use caution when producing ferroalloys and pure metals with low carbon content.
Traditional electrode material
Traditional electrode materials refer to the electrode materials used in traditional batteries such as lithium-ion batteries, lead-acid batteries, and nickel-metal hydride batteries, including graphite, lithium cobalt oxide, and lithium nickel-cobalt manganese oxide.These materials have different performance characteristics and application scenarios.
Graphite electrode is one of the most commonly used electrode materials. It is widely used in lithium-ion batteries and lead-acid batteries because of its high conductivity, light weight, and low price.Lithium cobalt oxide and lithium nickel-cobalt-manganese oxide electrodes are widely used in lithium-ion batteries because of their high energy storage density, long cycle life, and good reaction stability.
The preparation process of traditional electrode materials is mature, and it has the advantages of good stability, low cost, and controllable performance.However, with the popularity of electronic products such as electric vehicles and smart phones, traditional electrode materials are facing bottlenecks in terms of energy density and cycle life.In addition, the energy storage density and safety of traditional electrode materials are relatively limited, which is not enough for the application of new energy batteries.
Comparative analysis
There are significant differences between self-baking electrode pastes and traditional electrode materials in production technology, performance characteristics and application fields.Self-baking electrode paste has been widely used in industrial fields such as ferroalloy electric furnaces and calcium carbide furnaces due to its advantages of simple process, low cost, and easy adjustment of electrode length.However, its disadvantage of easily carburizing the alloy limits its application in certain fields.
Traditional electrode materials occupy a dominant position in new energy fields such as lithium-ion batteries because of their high energy storage density, long cycle life, and good reaction stability.However, its shortcomings such as complex preparation process, high cost, limited energy storage density and safety also limit its further development.
In summary, self-baking electrode pastes and traditional electrode materials have their own unique advantages and applicable scenarios.In practical applications, suitable electrode materials should be selected according to specific needs and conditions to give full play to their performance advantages.At the same time, with the continuous development of science and technology, the field of electrode materials will also usher in more innovations and breakthroughs, providing more high-quality and efficient electrode solutions for all walks of life.
