On October 21, local time, Nano One Materials, a company headquartered in Canada, told investors that its lithium battery-related technology has received another US patent. Currently, the company's innovations have been patented in the United States, Canada, Taiwan, China, China, Japan, and South Korea.
In short, the company has developed a method for producing cathode materials for high-performance lithium-ion batteries at low cost. This material is called high-pressure spinel, does not contain cobalt, and has a voltage of 4.7 V, which is 30% to 40% higher than the voltage in handheld devices and electric vehicle batteries. The batteries made from it are expected to be used in future electric vehicles, It plays an important role in energy storage systems and consumer electronics.
At present, Nano One Materials has established a demonstration pilot plant and has cooperated with companies such as Pulead (Beijing Xianxing Technology Industry Co., Ltd.), Volkswagen and Saint-Gobain. It is worth noting that the company's technology manufactures single crystal particles, rather than large cathode materials, which can prevent cracking and degradation due to repeated battery charging, improve the durability of the cathode material, and allow electric vehicle manufacturers to significantly Improve battery life and range.
At the same time, Nano One is still using fewer steps and simpler materials, and uses innovative technology to manufacture such cathode materials. For example, Dr. Stephen Campbell, chief scientist of Nano One, said that the company has developed a coating technology for stabilizing the cathode of advanced lithium-ion batteries, and has applied for a patent related to the coating technology.
Dr. Campbell explained: "The innovative coating can be directly applied to the particles of the cathode material without additional steps, which reduces the resistance and degradation between the cathode and the electrolyte in the lithium-ion battery, helping to design a higher energy density, Longer-life batteries. "
A stable ion conductive coating is prepared on the surface of Nano One's high-pressure spinel (HVS), which can improve the conductivity of the solid electrolyte by inhibiting the dissolution of manganese in the liquid electrolyte. At present, Nano One has developed two kinds of coatings, which can stabilize the cathode under the battery cycle of 55 degrees Celsius, and at the same time improve the durability and stability without affecting the capacity.