18650 1800mah battery.Next-generation technology route for lithium-ion batteries

　　First of all, developing and producing batteries with lower cobalt content or even cobalt-free batteries has become an important direction in developing the next generation of lithium-ion batteries. For lithium-ion battery manufacturers and automakers, there is an urgent need to get rid of or reduce dependence on cobalt because the metal is relatively expensive and needs to be imported in large quantities from the Democratic Republic of Congo. Companies including Johnson Matthey and Nano One have developed methods to reduce cobalt content or even replace it.

　　Secondly, in order to reduce the charging problems faced by the large-scale promotion and application of new energy vehicles, lithium-ion batteries with fast charging capabilities have also become an important research and development direction for automobile manufacturers and battery manufacturers. StoreDot, an Israeli battery company, is committed to this and claims to have successfully developed a new battery that can fully charge mobile phones in 60 seconds and enable new energy vehicles to be fully charged in just a few minutes.

　　Thirdly, major battery companies are still competing to launch high-energy-density batteries. One way to realize high-energy-density batteries is to replace the original graphite anode material with high-energy-density materials including silicon or metallic lithium. Two major battery companies in the United States, Sila Nanotechnologies and Enovix, have developed silicon anode materials using different methods. South Korea's Samsung SDI Company focuses on the research and development of a silicon and graphite composite material called "graphene balls".

　　In addition, solid-state batteries also have high hopes because they can achieve high energy density, good safety, and long cycle life. The technical core of solid-state batteries lies in the selection and application of electrolyte materials. Therefore, we use the electrolyte material system as the basis for classification and select three types of electrolyte material systems: mixed solid-liquid electrolyte, inorganic electrolyte, and solid polymer electrolyte to conduct a detailed analysis of solid-state batteries. Although these three types of solid battery systems have good prospects, it will take some time to usher in large-scale development and application.

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