Jung Wang Mo

TL;DR: In this paper, the authors presented a method for preparing the positive electrode active material for a secondary battery, a method to prepare the same, and a primary battery comprising the same which is capable of improving output and lifespan of a lithium secondary battery.

TL;DR: In this paper, a positive electrode activating material for a lithium secondary battery, a preparing method thereof and a battery including the same, wherein the positive electrodes activating material includes: a core containing lithium nickel complex metal oxide; and a surface modification layer positioned on the surface of the core, and the surface modified layer includes a lithium compound containing an element selected among a group of fluorine (F), boron (B), phosphorus (P) and tungsten (W); and impurities of the lithium nickel metal oxide at 5,000 ppm or less, thereby having no

TL;DR: In this article, the authors provided a positive electrode active material for a secondary battery, a positive positive electrode for a primary battery, and the secondary battery including the same active material including a first lithium-nickel oxide particle having an average particle size (D 50 ) of more than 8 µm to 20 µm or less, and a second lithium-Nickel oxides independently include nickel at a content of 80 atom% or more with respect to the total atomic weight of metal elements other than lithium present in the oxides.

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.