Lee Sang Wook

TL;DR: In this paper, LiF is added to a lithium transition metal oxide containing excess lithium before plastification, and thus a uniform surface coating can be formed on the lithium transition transition metal cathode active material.

TL;DR: In this article, the authors provided a positive electrode active material for a secondary battery, which was a lithium cobalt-based oxide including a doping element, where the positive electrode was a particle containing the doping element in an amount of 3,000 ppm or more.

TL;DR: In this paper, the authors presented a cathode active material for a secondary battery and a primary battery including a core, a shell, and a buffer layer, where the three-dimensional network structures in the core, the shell and the buffer layer respectively and independently comprise a lithium nickel manganese cobalt-based complex metal oxide, and have a BET specific surface area of 0.2m2/g to 0.5m 2/g, a porosity of 30 volume% or less, and an average particle size (D50) of 8μm to

TL;DR: In this article, a surface treating method for a cathode active material is presented, which can be used to obtain enhanced electrochemical characteristics such as charge/discharge property, durability, high rate, thermal stability, etc. through surface treating of metal fluoride and/or metal oxide.