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Korea Develops High Performance Anode Adhesive Materials for Lithium Batteries Mar 14, 2018

Recently, the Korean research consortium released news that the university has jointly developed a new adhesive anode material with high voltage and high capacity in cooperation with Chungnam University and Jinwu University of Technology, which has greatly increased the energy density of secondary lithium batteries. The research was published in the Advanced Academic Materials, an international academic magazine.

The currently used lithium cobalt oxide (LiCoO2) and nickel-cobalt-manganese (NCM) have limited capacity and require the use of larger anode materials. 

Lithium-rich manganese oxide has attracted attention as a new generation of anode material, which is twice as high as lithium cobalt oxide energy capacity, but can only achieve high capacity by increasing the charging voltage above 4.4V. However, in this case, the secondary battery may generate heat, so that the viscosity of the adhesive is weakened, causing problems such as deterioration of the battery performance.

Korea is committed to the development of high energy density secondary batteries. The anode material developed by the research group is to form a protective film on the surface of the pole at a high voltage of 4.7V and a high temperature of 55 degrees, to maintain the stability of the interface, without the need for additional electrolyte additives, and to maintain a stable adhesive material, exceeding the current The lithium cobalt oxide used has more than twice the capacity and more stable charge and discharge performance. 

The research group stated that this technology can further promote the development of secondary batteries.