Research Institute of Industrial Science & Technology

Posco Holdings Inc.

Posco Chemical Co., Ltd.

Posco

Poscoc Chemical Co., Ltd

Posco Future M Co., Ltd.

Jung Hoon Song

Sang Cheol Nam

Kwon Young Choi

Sang Hyuk Lee

Jeong Han Kim

Geun Hwangbo

Sung Hwan Min

Jong Pal Hong

Gyeong Rye Choi

Jong Il Park

Do Hyeong Kim

Hye Won Park

A positive electrode active material for a lithium secondary battery comprising a compound represented by Chemical Formula 1 is introduced.LiNiCoMnM1M2OX  [Chemical Formula 1]

Positive pole active material for lithium secondary battery and manufacturing method thereof, lithium secondary battery

A positive active material for a lithium secondary battery and a lithium secondary battery including the same are provided, wherein the positive active material includes lithium, nickel, cobalt, manganese, and a doping element, and the doping element may include Zr, Al, and Ti.

Cathode active material for lithium secondary battery, and lithium secondary battery comprising same

The present invention provides a cathode active material for a lithium secondary battery comprising secondary particles in which primary particles represented by Chemical Formula 1 below are aggregated, wherein the average particle size (D50) of the secondary particles is 2.5 μm or more and 7 μm or less, and the average value of the sphericity coefficient, which is the ratio (l/w) of the long axis length (l) to the short axis length (w) of the secondary particles, is 1.0 to 1.25.

Positive electrode active material for rechargeable lithium battery, production method therefor and rechargeable lithum battery comprising same

A positive active material, a manufacturing method thereof, and a lithium secondary battery including the same are disclosed, and a positive active material including lithium metal oxide particles in a secondary particle form including primary particles, wherein the secondary particle surface includes planar primary particles with a narrow angle of 70 to 90° from among angles between a c axis of the primary particles and a straight line connecting a virtual point of a center of the primary particle and a center point of the secondary particle may be provided.

Cathode active material, method for preparing same, and lithium secondary battery comprising same

The present disclosure relates to a positive active material for a lithium rechargeable battery, a manufacturing method thereof, and a lithium rechargeable battery including the positive active material, and it provides a positive active material which is a lithium composite metal oxide including nickel, cobalt, and manganese, and either has orientation in a direction of with respect to an ND axis that is equal to or greater than 29% or has orientation in a direction of [120]+[210] with respect to an RD axis that is equal to or greater than 82% in the case of an EBSD analysis with a misorientation angle (Δg) that is equal to or less than 30 degrees.

Positive active material for lithium rechargeable battery, manufacturing method thereof, and lithium rechargeable battery including same positive active material

The present invention relates to a positive active material for lithium secondary battery, its manufacturing method, and lithium secondary battery including the same, and it provides that a positive active material for lithium secondary battery, comprising: a core and a coating layer, wherein, the core is lithium metal oxide, the coating layer comprises boron, the boron compound in the coating layer comprises a lithium boron oxide and a boron oxide, the lithium boron oxide is included 70 wt % or more and 99 wt % in the entire coating layer, the lithium boron oxide comprises LiBO, with respect to the lithium boron oxide 100 wt %, the content of LiBOis 55 wt % or more and 99 wt % or less.

Cathode active material for lithium secondary battery, method for manufacturing same, and lithium secondary battery comprising same

A method of manufacturing core-shell particles comprises: filling a buffer into a rotor, which is extended in a longitudinal direction, and is accommodated so as to be spaced apart from an inner wall side of a non-rotational hollow cylinder extended in a longitudinal direction and then discharging air to outside; rotating the rotor after terminating the filling; forming a core-shell precursor by supplying raw materials from a first storage and a second storage, which comprise a material forming a core, into an interior of the cylinder in which the rotor rotates; supplying a shell material for coating the core to the interior of the cylinder in which a core-type precursor is formed; separating a liquid comprising core-shell particles formed through the supplying into a solid and a liquid; and drying the core-shell particles obtained through the separating.

Growing community of inventors

Seoul, South Korea

Jung Hoon Song