Professor Sun Yang-kook's research team at Hanyang University's Department of Energy Engineering has succeeded in developing next-generation cathodes for ultra-high-performance that can overtake competitors, as announced by Hanyang University on November 20. The research was published in Nature Energy (IF: 67.439), the world's most prestigious journal in the energy field, in recognition of its high academic value.

Efforts are underway in the scientific and industrial community to develop “Ni-rich materials” to increase higher proportion of nickel. However, various side reactions occurring on the surface of Ni-rich materials directly degrade the material, forming “residual lithium,” which reduces the stability and reliability of the battery.

To address these issues and develop a breakthrough cathode 토토사이트 클럽비, Professor Sun Yang-kook's research team proposed a groundbreaking surface reconstruction as a solution.

In general, high-nickel materials are washed in water to remove residual lithium from the surface. However, the research team formed a transition metal coating layer at the nanometer level to protect the surface of the anodes while removing residual lithium during the washing process. In addition, by forming a lithium inorganic compound (LiF) on the outside of the transition metal coating layer, the team significantly improved the safety of the anode material by suppressing side reactions with the electrolyte during battery use.

The team's new cathode 토토사이트 클럽비 can be utilized to produce electric vehicle batteries that can travel 700 to 800 kilometers per charge and last for more than 20 years. This is the first realization of world-class performance and stability that has not yet been reported in the literature.

In addition, the technology can be easily applied to existing production processes and its straightforward process suggests no significant challenges in technological commercialization. The technology can be applied not only to high-nickel 토토사이트 클럽비s but also to low-cobalt and cobalt-free anode 토토사이트 클럽비s, making it highly valuable for developing next-generation cathodes.

Professor Sun Yang-kook said, "This will be a key technology that can preempt the next-generation battery market. We will continue our research to develop materials with overwhelming performance so that Korea can lead the next-generation battery market."

The research was conducted through the Energy Innovation Research Center for Carbon Neutral Manpower Training program of the Korea Energy Technology Evaluation Institute, a program of the Ministry of Trade, Industry and Energy.

Meanwhile, Professor Sun Yang-guk is a world-renowned scholar who has been conducting research in the field of secondary batteries for about 30 years, and recently developed the original technology for microstructure control to dramatically improve the performance of anode 토토사이트 클럽비s, and has had a significant impact on the industry through technology transfer.