Korea Institute of Science and Technology

Agung Nugroho

Jong Min Park

Jaehoon Kim

Byung Won Cho

Kyung Yoon Chung

Disclosed is a method for carbon coating on lithium titanium oxide-based anode active material nanoparticles. The method includes (a) introducing a lithium precursor solution, a titanium precursor solution and a surface modifier solution into a reactor, and reacting the solutions under supercritical fluid conditions to prepare a solution including nanoparticles of an anode active material represented by LiTiO, (b) separating the anode active material nanoparticles from the reaction solution, and (c) calcining the anode active material nanoparticles to uniformly coat the surface of the nanoparticles with carbon. Further disclosed are carbon-coated lithium titanium oxide-based anode active material nanoparticles produced by the method. In the anode active material nanoparticles, lithium ions are transferred rapidly. In addition, the uniform carbon coating ensures high electrical conductivity, allowing the anode active material nanoparticles to have excellent electrochemical properties.

Method for coating carbon on lithium titanium oxide-based anode active material nanoparticles and carbon-coated lithium titanium oxide-based anode active material nanoparticles produced by the method

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Seoul, South Korea

Agung Nugroho