Lg Chem, Ltd

Lg Energy Solution, Ltd.

Hyelim Jeon

Wang Mo Jung

Eunsol Lho

Donghun Lee

Sang Wook Lee

Minsuk Kang

Sora Baek

Cheol-Hee Park

Sang Beom Lee

Seul Ki Kim

Hong-Kyu Park

Ji Eun Lee

Hong Kyu Park

Sung Kyun Chang

Sung-Kyun Chang

Soo Min Park

Sang Uck Lee

The present disclosure relates to a cathode additive of a lithium secondary battery, and a method for preparing the same. The cathode additive exhibits high irreversible capacity, and may be effectively applied to a battery using an anode material having high energy density. In one embodiment, the cathode additive includes a compound represented by the following Chemical Formula 1:y(LiNiMO)-z(LiCoMO) &#x2003;&#x2003;[Chemical Formula 1]

Additive for cathode, method for preparing the same, cathode including the same, and lithium secondary battery including the same

There are provided a method of preparing an irreversible additive in which a content of a Li-based by-product such as unreacted lithium oxide generated in a process of preparing lithium nickel-based oxide is decreased, which may significantly reduce gelation of a composition including the irreversible additive, a cathode material including the irreversible additive prepared by the same, and a lithium secondary battery including the cathode material.

Method of preparing irreversible additive included in cathode material for lithium secondary battery, cathode material including irreversible additive prepared by the same, and lithium secondary battery including cathode material

The present disclosure provides a preparing method of a positive electrode additive for a lithium secondary battery capable of reducing the amount of Li-based byproduct and unreacted lithium oxide generated in a preparing process, thereby significantly reducing the amount of gas generated when the electrode is operated.

Method for preparing positive electrode additives of lithium secondary battery

Disclosed are a cathode additive of a lithium secondary battery which may have improved crystallinity and a method for preparing the same. The cathode additive may be provided to suppress generation of oxygen gas or gelation of an electrode slurry composition, which may occur due to reduction in the content of residual by-products containing lithium oxide.

Disclosed are a cathode additive of a lithium secondary battery and a method of preparing the same. The lithium secondary may have high irreversible capacity and further improved capacity characteristics.

Disclosed is a cathode active material represented by the following Formula 1, the cathode active material being in the form of a solid solution or a composite, and a secondary battery including the cathode active material.LiMOLiM'OLiM&#x2033;OLiPO&#x2003;&#x2003;(1)

Cathode active material for secondary batteries

Disclosed is a cathode active material for secondary batteries, comprising at least one compound selected from the following Formula 1: xLiMO*yLiM'O*zLiPO(1) wherein M is at least one element selected from 1 period or 2 period metals having an oxidation number of +4; M&#x2032; is at least one element selected from 1 period or 2 period metals having a mean oxidation number of +3; and 0.1&#x2266;x&#x2266;0.9, 0.1&#x2266;y&#x2266;0.9, 0&#x3c;z&#x2266;0.2 and x+y+z=1.

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Daejeon, South Korea

Hyelim Jeon