Their prayers have been answered.
Samsung Electronics succeeded in the development of innovative technology that will rock the world market with batteries after semiconductors. Using ‘graphene’, which is called ‘a dream new material,’ the Korean electronics giant made a material that can increase batteries’ capacities 45% and make battery charging speed more than five times faster than now.
The Samsung Advanced Institute of Technology (SAIT) announced on November 27 that the research center succeeded in developing a ‘graphene ball,’ a material for batteries via joint research with Samsung SDI and a team led by Choi Jang-wook, a professor of chemistry and biological engineering at Seoul National University. Graphene is thin carbon film removed from graphite which is 100 times more conductive than copper and capable of moving electrons more than 140 times faster than silicon. The material is taking center stage as a new material for batteries and displays thanks to its high physical and chemical stability.
Samsung found a way to apply graphene to batteries. The company discovered a mechanism for the mass synthesis of two-dimensional graphene into three-dimensional solid forms like popcorns by using inexpensive silica (SiO2 and a chemical compound of silicon and oxygen). The use of this graphene ball as cathode protection and cathode materials for popularized lithium ion batteries increases charging capacities and cuts back on charging time, Samsung explained.
It takes about an hour to fully charge current batteries even through fast charging technology. Their explosion risk is high if battery temperature rises above 45 degrees. However, a graphene ball-based battery can be fully charged in 12 minutes. In addition, a graphene ball-based battery can maintain its stability even if its temperature hits 60 degrees, which is a temperature safety standard required by batteries for electric vehicles. “Samsung Electronics’s development of the graphene ball is meaningful as a synthesis and coating technology that complements battery structures. It is expected that it will take about five years to produce the finished product,” said an official in the battery industry.