Researchers have solved the problem of the low efficiency of solid carbon, which would be a good material for batteries because it is cheap and easy to process.
Sunrise New Energy Materials (China) has developed a solid carbon fiber composite material designed to improve the performance of sodium-ion batteries, Investor ideas reports.
The company has already received preliminary approval from the National Intellectual Property Office of the People’s Republic of China to patent the invention “Fiber-structured titanium-doped amorphous carbon composite material with silver-hard carbon coating and method for its production.”
Solid carbon (graphene) is used as the main anode material for sodium-ion batteries because it is available, inexpensive, and easy to process. However, it has disadvantages: low power density and low initial efficiency.
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The present invention will help get rid of these problems. The solid carbon composite material the scientists used has a core-shell structure, with the inner core made of solid carbon material doped with silver and the outer shell made of amorphous carbon doped with titanium. This design improves the initial efficiency, cycling and other characteristics of anode materials.
Sunrise is seeking international and domestic patents for its graphene, silicon-carbon, and hard carbon products. Companies such as CATL, BYD, Narada Power and Hithium Energy, specializing in the production of batteries for electric vehicles and more, were involved in working on improving sodium-ion batteries.
Previously, we wrote that a Tesla car refused to drive and did not open the interior doors because the owner did not replace the battery. A new battery would cost $26,000.