Lg Chem, Ltd

Electronics and Telecommunications Research Institute

Lg Energy Solution, Ltd.

University-industry Cooperation Group of Kyung Hee University

Hong Kyu Park

Sun Sik Shin

Seong Hoon Kang

Wang Mo Jung

Sin Young Park

Sung-Kyun Chang

Ho Suk Shin

Hyun Kuk Noh

Cheol-Hee Park

Chi Ho Jo

Ji Hoon Ryu

Su-min Park

Jens M Paulsen

Byung Chun Park

Donghun Lee

Ho Chun Lee

Won Tae Kim

JiEun Lee

Jong Yeol Yu

Tae Yoon Park

Yong Su Choi

Min Kyu You

Sang Seung Oh

Seong Bae Kim

Yi Rang Lim

HoSuk Shin

Sang Hoon Choy

Sang Min Park

Yong Tae Lee

Seong Ho Lee

Da Young Sung

Jin-Hyung Lim

Gi Beom Han

Kyoung Wan Park

Yu Mi Kim

Eun Hee Kim

Hyun Uk Kim

Byungchun Park

Sung Joong Kang

Jinhyung Lim

Soo Jin Yoon

Jens Martin Paulsen

Chang Jun Moon

Yong Ju Lee

Je Young Kim

Eun Kyung Kim

Cheol Sig Pyo

Young Min Kim

Ji Eun Lee

Minchul Jang

Cha Hun Ku

Byoungkuk Son

Jeong-Ju Cho

Jung Woo Yoo

Bo Ram Lee

Min Chul Jang

Ho-Chun Lee

Rae Hwan Jo

Soo Ji Hwang

Ji Young Choi

Nae Soo Kim

Soonho Ahn

Seung Don Choi

Ju Ho Chung

Hye Lim Jeon

Jeong Ju Cho

Sun Kyu Kim

Hoon Jung

Ho Seon Shin

Moon Sung Park

Jeong Ae Ahn

Eun Joo Kim

Mi Rim Lee

Kwi Hoon Kim

JungMin Han

WonSeok Chang

Ho Sung Lee

Woo Sik Kim

Hyun Jae Kim

Hwa Seok Chae

Hyelim Jeon

Yeo June Yoon

Jae Gwan Song

Ji Hoon Bae

Yong Hoon Choi

Woo Hyun Kim

Yeon Hee Lee

Young Su Park

Gyu Ok Hwang

Hyun Joong Kang

Se Won Oh

Soo Ryoung Kim

Hyun Min Jung

Eun Hee Lee

Sung Man Lee

Jae Hak Yu

Sang Uck Lee

Sun Jin Kim

Byoung Kuk Son

Soon Hyun Kwon

A positive electrode active material for a secondary battery including: a lithium complex transition metal oxide which contains nickel (Ni) and cobalt (Co), and contains at least one selected from the group consisting of manganese (Mn) and aluminum (Al); and a composite coating portion which is formed on a surface of the lithium complex transition metal oxide is provided. The lithium complex transition metal oxide has a nickel (Ni) content of 65 mol % or more with respect to the total transition metal content, and the composite coating portion contains cobalt (Co) and boron (B), and contains at least one selected from the group consisting of lanthanum (La), titanium (Ti), and aluminum (Al).

Positive electrode active material for secondary battery, method for preparing same, and lithium secondary battery including the same

A method of preparing a positive electrode active material precursor includes forming positive electrode active material precursor particles while adding a reaction solution including a transition metal-containing solution, an ammonium ion-containing solution, and a basic aqueous solution to a reactor with a filtration device installed therein. The method further includes performing continuous concentration in which the reaction solution is added while continuously discharging a portion of the reaction solution in the reactor out of the reactor using the filtration device when the reactor is full, wherein a concentration of a solid content in the reactor is increased at a constant rate.

Positive electrode active material precursor for lithium secondary battery, and method of preparing the same

A positive electrode active material for a lithium secondary battery includes a lithium composite transition metal oxide including transition metals including nickel (Ni), cobalt (Co), and manganese (Mn), and the lithium composite transition metal oxide is doped with doping elements including cobalt (Co) and titanium (Ti). The lithium composite transition metal oxide includes at least one lithium layer and at least one transition metal layer including the transition metals, and the lithium layer and the transition metal layer are alternately arranged. The thickness of the lithium layer ranges from 2.146 Å to 2.182 Å, and the thickness of the transition metal layer ranges from 2.561 Å to 2.595 Å.

Positive electrode active material for lithium secondary battery, method of preparing the same, and positive electrode for lithium secondary battery and lithium secondary battery including the same

A positive electrode active material includes a core including a first lithium complex metal oxide, and a shell located surrounding the core and including a second lithium complex metal oxide, and further includes a buffer layer located between the core and the shell. The buffer layer includes a pore, and a three-dimensional network structure of a third lithium complex metal oxide which is connecting the core and the shell. Accordingly, the positive electrode active material is capable of enhancing an output property and a life property by minimizing destruction of the active material caused by a rolling process during the electrode preparation, maximizing reactivity with an electrolyte liquid, and by the particles that form the shell having a crystal structure with orientation facilitating lithium ion intercalation and deintercalation.

Positive electrode active material for lithium secondary battery, method for preparing the same and lithium secondary battery including the same

A method of preparing a positive electrode active material for a lithium secondary battery includes mixing a transition metal hydroxide containing transition metals including nickel (Ni), cobalt (Co) and manganese (Mn), a lithium-containing raw material and a doping raw material including at least one doping element selected from the group consisting of Al, Mg, Co, V, Ti, Zr and W and performing a first calcination treatment thereon to prepare a lithium composite transition metal oxide doped with the doping element; and mixing the lithium composite transition metal oxide and a coating raw material including at least one coating element selected from the group consisting of Al, Mg, Co, Ti, Zr and B and performing a second calcination treatment thereon to prepare a positive electrode active material in which a coating layer containing the coating element is formed on the lithium composite transition metal oxide.

Method of preparing positive electrode active material for lithium secondary battery, positive electrode active material for lithium secondary battery, and positive electrode for lithium secondary battery and lithium secondary battery including the same

A positive electrode active material for a secondary battery includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide has a layered crystal structure of space group R3m, includes the nickel (Ni) in an amount of 60 mol % or less based on a total amount of transition metals, includes the cobalt (Co) in an amount greater than an amount of the manganese (Mn), and is composed of single particles.

Positive electrode active material including single particles of lithium nickel composite transition metal oxide, method of preparing the same, and lithium secondary battery including the same

A positive electrode active material precursor having a uniform particle size distribution and represented by Formula, wherein a percentage of fine powder with an average particle diameter (D) ofμm or less is generated when the positive electrode active material precursor is rolled atkgf/cmis less than%, and an aspect ratio isor more, and a method of preparing the positive electrode active material precursor[NiCoMM  [Formula]

Positive electrode active material for secondary battery, method for preparing same, and lithium secondary battery including same

The present invention relates to a positive electrode active material for a lithium secondary battery, a method for preparing the same and a lithium secondary battery including the same, the positive electrode active material includes a core including a first lithium complex metal oxide, and a shell located surrounding the core and including a second lithium complex metal oxide, and further includes a buffer layer located between the core and the shell, wherein the buffer layer includes a pore, and a three-dimensional network structure of a third lithium complex metal oxide which is connecting the core and the shell, and accordingly, minimizing destruction of the active material caused by a rolling process during the electrode preparation, and maximizing reactivity with an electrolyte liquid.

A method of preparing a positive electrode active material includes mixing a lithium raw material and a nickel-containing transition metal hydroxide precursor containing nickel in an amount of 65 mol % or more based on a total number of moles of transition metals and performing a first heat treatment to prepare a nickel-containing lithium transition metal oxide. The method also includes mixing a boron and carbon-containing raw material and a cobalt-containing raw material with the nickel-containing lithium transition metal oxide to form a mixture, and performing a second heat treatment on the mixture to form a coating material including B and Co on a surface of the lithium transition metal oxide. A positive electrode active material prepared by the preparation method is formed, and a positive electrode for a lithium secondary battery and a lithium secondary battery which include the positive electrode active material.

Positive electrode active material for lithium secondary battery, method of preparing the same, and positive electrode for lithium secondary battery and lithium secondary battery which include the positive electrode active material

Provided are a data processing apparatus and method for merging and processing deterministic knowledge and non-deterministic knowledge. The data processing apparatus and method may efficiently process various real-time and large-scale data to convert the data into knowledge by merging and processing non-deterministic knowledge and also deterministic knowledge perceived by an expert. Thus, it is possible to adaptively operate in accordance with a dynamically changing application service environment by converting a conversion rule for converting collected data generated from an application service system into semantic data, a context awareness rule for perceiving context information from given information, and a user query for searching for knowledge information into knowledge and gradually augmenting the knowledge information in accordance with an application service environment.

Data processing apparatus and method for merging and processing deterministic knowledge and non-deterministic knowledge

The present invention provides a battery cell including: an electrode assembly configured of a positive electrode, a negative electrode, and a separation membrane; and a battery case in which a sealing surplus part is formed at an external circumference in a state that the electrode assembly is built in a receiving unit, wherein the battery case is formed of a sheet-shaped structure having a first surface and a second surface opposite to the first surface, an electrode terminal of the sheet-shaped structure is protruded through one side sealing surplus part of the battery case, and the electrode terminal is in contact with one surface or the other surface opposite to the one surface of the sealing surplus part in a state that the electrode terminal is bent in the first surface direction or the second surface direction of the battery case at the protrude part.

Pouch type battery cell including electrode lead of bending structure

The present invention provides a positive electrode active material for a lithium secondary battery having a core-shell structure which comprises: a core composed of lithium transition metal oxides including nickel(Ni), manganese(Mn) and cobalt(Co); and a shell composed of lithium transition metal oxides including cobalt(Co), wherein an inorganic material layer is further formed by coating on the surface of the shell.

Positive electrode active material for lithium secondary battery comprising lithium metal oxides having multilayered structure and positive electrode comprising the same

The present invention provides a precursor for the production of positive electrode active material for a secondary battery comprising: a core containing transition metal hydroxides comprising nickel (Ni) and manganese (Mn), or transition metal hydroxides comprising nickel (Ni), manganese (Mn) and cobalt (Co); and a shell containing transition metal hydroxides comprising cobalt (Co), and a positive electrode active material produced using the same.

Precursor for the production of positive electrode active material comprising metal oxides having multilayered structure and positive electrode active material for lithium secondary battery produced using the same

Disclosed is a cathode active material in which lithium cobalt oxide particles and manganese (Mn) or titanium (Ti)-containing lithium transition metal oxide particles co-exist and a method of preparing the same.

Cathode active material for secondary battery with enhanced lifespan characteristics and method of preparing the same

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Daejeon, South Korea

Hong Kyu Park