Wonjun is showing strength. The news that POSTECH has developed a next-generation high-energy density lithium-ion battery system based on micro silicon has highlighted the fact that a developer is an outside director.
As of 9:51 AM on the 26th, Wonjun is trading at 17,370 KRW, up 5.08% from the previous day.
According to industry sources on the day, POSTECH announced that Professor Sujin Park of the Department of Chemistry, integrated course student Minjun Je, and Dr. Hyebin Son's research team developed an affordable and stable next-generation high-energy density lithium-ion battery system based on micro silicon using a gel-type polymer electrolyte.
Silicon anode materials expand and contract more than three times in volume during charging and discharging, which significantly reduces battery efficiency. On the other hand, micro silicon has relatively high practicality in terms of price and energy density, but there has been a limitation in using it as an anode material due to the problem of volume expansion during battery operation.
In response, the research team developed a stable silicon-based battery system using a gel-type electrolyte. Despite using micro silicon particles (5㎛) that are 100 times larger than conventional nano silicon anode materials, it demonstrated stable battery operation. It also showed ion conductivity similar to that of conventional batteries using liquid electrolytes, and the energy density was improved by about 40%.
Meanwhile, Wonjun is a company that provides heat treatment equipment for cathode and anode materials of secondary batteries. It is interpreted that buying demand is pouring in as Professor Sujin Park of POSTECH's Department of Chemistry, who developed this next-generation battery system, is known to serve as an outside director.
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