WO2.72’s purple finely divided crystalline powder, which is a purple tungsten oxide that can be used in negative electrode materials, which can help lithium-ion batteries achieve ultra-fast charging, so that high-power density battery devices can be constructed to achieve smaller and lighter Device.
Purple tungsten oxide has a very high chemical activity and enhances electron conductivity. The material has a small internal resistance and excellent Li ion diffusibility. In particular, it has excellent discharge characteristics in a low-temperature environment, and has a rate characteristic equal to or higher than that of a double-layer capacitor (EDLC) discharge even at -40 °C. Previously, the rate characteristics of Li ion secondary batteries and Li ion capacitors at low temperatures have been an unsolved problem.
A battery with a new material is characterized by a power density and an energy density that can be increased to two to three times that of a double layer capacitor. Energy density is also improved compared to lithium ion capacitors designed to increase the energy density of EDLC. In the field of capacitors, Li-ion secondary batteries are not suitable for high-output applications due to insufficient output power and development difficulties, and the development of such batteries will make it possible to use batteries in high-output power applications.
It is said that the new battery materials are very likely to be officially put into commercial use, which may further expand the demand for tungsten oxide. The application advantages of lithium batteries using new materials are quite obvious, ranging from automobiles, micro/mild hybrid trains, elevators, uninterruptible power supply UPS to high-current power supplies.
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