LION TECHNICAL SOLUTION VIET NAM / Sample Products & Material / Graphite CNC Products / Graphite for Other Industries / Graphite for Electricity Storage
A redox flow battery is a storage battery that charges and discharges using the redox reaction of vanadium and other ions. It has characteristics suitable for power system storage batteries, such as a long life with almost no deterioration of the electrodes or electrolyte, high safety because it does not use flammable materials, and can be operated at room temperature.
Bipolar plate for redox flow battery – Graphite Carbon Plate
The present invention relates to a bipolar plate that partitions unit cells of a redox flow battery (also referred to as a redox flow secondary battery). A bipolar plate is a plate that partitions each cell. In order to reduce the internal resistance of a redox flow battery, the bipolar plate is required to have high conductivity, and a volume resistivity of less than 1 Ω·cm is desired. On the other hand, excellent liquid-shielding properties are required to prevent the electrolyte from seeping into adjacent cells. Furthermore, the bipolar plate is subjected to pressure from the electrolyte and thermal contraction due to temperature changes, so in order to withstand these, it must have high mechanical strength (tensile strength) or deformability that will not cause damage even with slight deformation. (Tensile elongation) is required. Therefore, bipolar plates are made of conductive plates that conduct electricity but not electrolyte, such as graphite plates with excellent mechanical strength, glassy carbon, and plastic carbon (plastic carbon kneaded with carbon). things) etc. are used.
Composite conductive materials such as plastic carbon, which are made by dispersing conductive fillers in polymers and impart conductivity, are also considered as materials that have high conductivity, excellent liquid-shielding properties, and high mechanical strength and deformability. . As the conductive filler, conductive fillers made of chemically stable carbonaceous materials, particularly graphite and carbon black, are considered preferable to metal fillers that may be ionized by the electrolyte and impair battery characteristics. .
At Lion Technical Solution, we have helped many customers in choosing the most suitable and optimal graphite for their needs. Not stopping there, for the processing of test samples, we have accompanied customers to make test samples many times until achieving the best performance. In addition, machining and ensuring stability when machining is also a problem, but with our machinery system and many years of machining experience with Graphite material, we have completely conquered customers in terms of quality. quantity and cost when produced in large quantities.
