Abstract: Proposed are a lithium secondary battery cathode active material doped with B and Sn and a lithium secondary battery including the cathode active material. The B and Sn doping enables a cathode capable of solving problems occurring in a high-nickel cathode, such as (1) an electrolyte side reaction on the surface, 2) a crystal structure collapse, 3) oxygen release, 4) inert Ni4+ generation; 5) cation mixing, and 6) transition metal elution. This improves the life span of a lithium secondary battery.

Abstract: A lithium ion battery for vehicles is provided. The battery includes a substrate, a positive electrode auxiliary layer disposed on the substrate and including at least one of platinum, gold, palladium, silver or combinations thereof, a positive electrode disposed on the positive electrode auxiliary layer and including an active material selected from at least one of LiNi0.5Mn1.5O4, LiCoPO4, LiMnPO4, or combinations thereof, an electrolyte layer disposed on the positive electrode, and a negative electrode disposed on the electrolyte layer.

Abstract: Disclosed is a method for manufacturing a lithium transition metal phosphate. The disclosed method for manufacturing a lithium transition metal phosphate comprises the steps of: injecting reaction materials containing lithium, a transition metal, and a phosphate, into a reactor, and mixing the raw materials at the molecular level in the reactor; and allowing the reaction materials to chemically react in the reactor so as to cause nucleation.

Abstract: A method of preparing an electrode active material for manufacturing a lithium secondary battery exhibiting stable charging/discharging efficiency and life-cycle characteristics even during high-speed charging/discharging cycles is provided. Also, a method of controlling both a composition ratio (Ti/Li) of surface elements and a composition of a lithium element in a lithium titanium oxide which is known to be an electrode active material having a relatively stable structure is provided. The lithium secondary battery using the lithium titanium oxide manufactured by the method as the electrode active material can be stably used by maintaining charging/discharging efficiency and charging capacity even during the high-speed charging/discharging cycles.

Abstract: A method of preparing lithium titanate nanoparticles, the method including: feeding reactants including lithium and titanium into a reactor, followed by mixing the reactants in the reactor at a molecular level; and generating a crystal nucleus by chemically reacting the reactants in the reactor.

Abstract: Disclosed is a method for manufacturing a lithium transition metal phosphate. The disclosed method for manufacturing a lithium transition metal phosphate comprises the steps of: injecting reaction materials containing lithium, a transition metal, and a phosphate, into a reactor, and mixing the raw materials at the molecular level in the reactor; and allowing the reaction materials to chemically react in the reactor so as to cause nucleation.

Abstract: A method of preparing lithium titanate nanoparticles, the method including: feeding reactants including lithium and titanium into a reactor, followed by mixing the reactants in the reactor at a molecular level; and generating a crystal nucleus by chemically reacting the reactants in the reactor.

Abstract: A process for fabricating a high-speed CMOS TTL semiconductor device, wherein the operational speed of a semiconductor device is controlled by adjusting the capacitance of its field region. The capacitance of the field region is adjusted by the thickness thereof, which is determined by the control of diffusion heating cycles in the fabrication sequence according to the invention.