Views: 0 Author: Site Editor Publish Time: 2025-10-28 Origin: Site
Graphite felt, a porous material made from carbon fibers, plays a significant role in battery technology due to its excellent electrical conductivity, high temperature resistance, and chemical stability. So, is graphite felt used as the positive electrode or the negative electrode?
Graphite felt is produced by subjecting carbon fibers to high-temperature treatment. It has a high degree of porosity and a large specific surface area, which makes it an excellent electrode material. Its excellent electrical conductivity ensures the smooth flow of current through the electrode, while its chemical stability guarantees the safety of the battery during operation. These characteristics make graphite felt an ideal choice in battery manufacturing.
In batteries, the selection of materials for the positive and negative electrodes is of vital importance to the performance of the battery. The positive electrode typically uses active substances such as lithium cobalt oxide, lithium iron phosphate, or nickel cobalt manganese oxide, which can incorporate and release lithium ions during charging and discharging. The negative electrode, on the other hand, requires a material that can stably store and release lithium ions.
Due to its structural characteristics and chemical properties, graphite felt is highly suitable as a negative electrode material. Its porous structure provides a large number of lithium ion insertion sites, while its chemical stability ensures the safety of the battery during charging and discharging processes. Therefore, in batteries of types such as lithium-ion batteries, graphite felt is often used as the negative electrode.
1. High energy density: The porous structure of graphite felt can accommodate a large number of lithium ions, thereby increasing the energy density of the battery.
2. Long lifespan: Due to the chemical stability of graphite felt, it can maintain its performance after multiple charge and discharge cycles, extending the battery's service life.
3. Safety: Graphite felt is less likely to undergo chemical reactions at high temperatures, thereby reducing the risk of battery overheating or short circuit.
In summary, graphite felt, with its unique physical and chemical properties, is typically used as the negative electrode material in batteries. Its porous nature, high conductivity, and chemical stability make it an ideal choice for the negative electrode, providing high energy density, long lifespan, and good safety. Therefore, in the design and manufacture of high-performance batteries, graphite felt is an important material that cannot be ignored.
