Patents by Inventor Wang Mo Jung

Wang Mo Jung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Positive Electrode Active Material, and Positive Electrode and Lithium Secondary Battery Which Include the Positive Electrode Active Material
    Publication number: 20220045322
    Abstract: In one arrangement, the present disclosure relates to a positive electrode active material including a nickel-cobalt-manganese-based lithium transition metal oxide which contains nickel in an amount of 60 mol % or more based on a total number of moles of metals excluding lithium, wherein the nickel-cobalt-manganese-based lithium transition metal oxide is doped with doping element M1 (where the doping element M1 is a metallic element including Al) and doping element M2 (where the doping element M2 is at least one metallic element selected from the group consisting of Mg, La, Ti, Zn, B, W, Ni, Co, Fe, Cr, V, Ru, Cu, Cd, Ag, Y, Sc, Ga, In, As, Sb, Pt, Au, and Si), where the doping element M1 can be in an amount of 100 ppm to 10,000 ppm, and the doping element M1 and the doping element M2 are included in a weight ratio of 50:50 to 99:1.
    Type: Application
    Filed: November 1, 2019
    Publication date: February 10, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Wen Xiu Wang, Wang Mo Jung, Min Suk Kang, Sang Wook Lee, So Ra Baek, Eun Sol Lho
  • POSITIVE ELECTRODE ACTIVE MATERIAL AND METHOD FOR PREPARING THE SAME
    Publication number: 20220045320
    Abstract: A method for preparing a positive electrode active material and a positive electrode active material prepared thereby are provided. The method includes a first step of reacting a coating precursor preparation solution including a metal solution containing metal ions included in a coating layer and a chelating agent to prepare a coating precursor, which is a complex in which the metal ions and the chelating agent are combined, and a second step of dry-mixing particles having a specific composition and the coating precursor, followed by firing the mixture to form a coating layer having a specific composition on surfaces of the particles.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 10, 2022
    Inventors: Chi Ho Jo, Wang Mo Jung, Hyeseung Chung, Ying Shirley Meng
  • Positive Electrolyte Active Material for Secondary Battery, Preparation Method Thereof, and Lithium Secondary Battery Including Same
    Publication number: 20220037658
    Abstract: A lithium composite transition metal oxide includes nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide includes two or more kinds of first dopants selected from the group consisting of Zr, Al, V, Co, and Mg and two or more kinds of second dopants selected from the group consisting of Ti, Y, Sr, Nb, Ba, and Ca, and particles of the lithium composite transition metal oxide has a crystallite size of 170-300 nm.
    Type: Application
    Filed: October 21, 2019
    Publication date: February 3, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Sang Min Park, Ji Hye Kim, Tae Gu Yoo, Wang Mo Jung, Gi Beom Han
  • Positive Electrode for Secondary Battery, Method for Manufacturing Same, and Lithium Secondary Battery Including Same
    Publication number: 20220029145
    Abstract: The present disclosure provides a method for manufacturing a positive electrode for a secondary battery, the method including forming a positive electrode mixture layer including a positive electrode active material on a positive electrode current collector, and forming a metal oxide coating layer on the positive electrode mixture layer by atomic layer deposition, wherein the positive electrode active material includes lithium composite transition metal oxide particles and a boron-containing coating layer formed on the lithium composite transition metal oxide particles, and the lithium composite transition metal oxide particles include nickel (Ni), cobalt (Co), and manganese (Mn), wherein the nickel (Ni) is 60 mol % or greater of all metals excluding lithium.
    Type: Application
    Filed: December 6, 2019
    Publication date: January 27, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Sung Bin Park, Dong Hun Lee, Hyung Man Cho, Jung Min Han, Jin Tae Hwang, Wang Mo Jung
  • Positive Electrode Additive, Manufacturing Method Thereof, and Positive Electrode and Lithium Rechargeable Battery Including the Same
    Publication number: 20220020988
    Abstract: The present disclosure relates to a positive electrode additive, a manufacturing method thereof, and a positive electrode and a lithium rechargeable battery including the same. Specifically, one embodiment of the present disclosure provides a positive electrode additive for a lithium rechargeable battery comprising: a compound represented by the following Chemical Formula 1; a compound represented by the following Chemical Formula 2; and lithium phosphate (Li3PO4): Li2+aNibM1?bO2+c ??[Chemical Formula 1] wherein, M is a metal element forming a divalent cation, ?0.2?a?0.2, 0.5?b?1.0, and ?0.2?c?0.2, Ni2?eM1?eP4O12 ??[Chemical Formula 2] wherein, 0.5?e?1.0, and M is the same as defined in Chemical Formula 1.
    Type: Application
    Filed: March 3, 2020
    Publication date: January 20, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Boram Lee, Sin Young Park, Tae Gu Yoo, Taegon Kim, Min Kwak, Wang Mo Jung
  • Positive Electrode Active Material for Secondary Battery, Preparation Method Thereof, and Positive Electrode for Secondary Battery Including Same
    Publication number: 20220020983
    Abstract: The present disclosure relates to a positive electrode active material for a secondary battery, the positive electrode active material being a lithium composite transition metal oxide particle including nickel (Ni) and cobalt (Co) and including at least one of manganese (Mn) and aluminum (Al), wherein the lithium composite transition metal oxide particle includes 60 mol % or greater of the nickel (Ni) in all metals excluding lithium, a doping element is doped on the lithium composite transition metal oxide particle, and the particle intensity of the lithium composite transition metal oxide particle is 210 MPa to 290 MPa.
    Type: Application
    Filed: November 28, 2019
    Publication date: January 20, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Eun Sol Lho, Wang Mo Jung, Min Suk Kang, Sang Wook Lee, So Ra Baek, Wen Xiu Wang
  • Positive Electrode Active Material, Method of Preparing the Positive Electrode Active Material, and Positive Electrode and Lithium Secondary Battery Which Include the Positive Electrode Active Material
    Publication number: 20220013775
    Abstract: A positive electrode active material includes a nickel-based lithium transition metal oxide containing nickel in an amount of 60 mol % or more based on a total number of moles of metals excluding lithium, wherein cobalt is included in an amount of greater than 0 ppm to 6,000 ppm or less on a surface of the nickel-based lithium transition metal oxide. A method of preparing the positive electrode active material, a positive electrode for a lithium secondary battery and a lithium secondary battery which includes the positive electrode active material are also provided.
    Type: Application
    Filed: January 7, 2020
    Publication date: January 13, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Dong Hun Lee, Sung Bin Park, Hyung Man Cho, Jung Min Han, Jin Tae Hwang, Wang Mo Jung
  • Positive Electrode Active Material For Lithium Secondary Battery, Method Of Preparing The Same, And Lithium Secondary Battery Including The Positive Electrode Active Material
    Publication number: 20220006085
    Abstract: The present invention relates to a positive electrode active material for a lithium secondary battery which includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein a portion of nickel (Ni) sites of the lithium composite transition metal oxide is substituted with tungsten (W), and an amount of a lithium tungsten oxide remaining on surfaces of lithium composite transition metal oxide particles is 1,000 ppm or less.
    Type: Application
    Filed: September 16, 2021
    Publication date: January 6, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Ji Hye Kim, Byung Chun Park, So Ra Baek, Tae Gu Yoo, Wang Mo Jung
  • LITHIUM SECONDARY BATTERY
    Publication number: 20210399276
    Abstract: The present invention relates to a lithium secondary battery manufactured by forming a negative electrode free battery and then forming a lithium metal on the negative electrode current collector by charging. In the lithium secondary battery, since lithium metal is formed on the negative electrode current collector in the state of being blocked with the atmosphere, the generation of the conventional surface oxide layer (native layer) formed on the negative electrode does not occur inherently, thereby preventing the reduction of the efficiency and lifetime characteristics of the battery.
    Type: Application
    Filed: November 1, 2019
    Publication date: December 23, 2021
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Insung UHM, Sin Young PARK, Taegon KIM, Minchul JANG, Wang Mo JUNG, Boram LEE, Byoungkuk SON, Eunkyung PARK, Seongmin HA
  • Metal-doped positive electrode active material for high voltage
    Patent number: 11183691
    Abstract: Provided are a metal element-doped positive electrode active material for a high voltage and a preparation method thereof. The positive electrode active material may include a lithium cobalt oxide having a layered crystal structure; and a metal element (M) incorporated into the lithium cobalt oxide in an amount of 0.2 parts by weight to 1 part by weight with respect to 100 parts by weight of the lithium cobalt oxide, wherein the metal element (M) does not form a chemical bond with the elements of the lithium cobalt oxide, and wherein the layered crystal structure in maintained at a positive electrode potential of more than 4.5 V (based on Li potential) when fully charged.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: November 23, 2021
    Inventors: Sungbin Park, Younguk Park, Jiyoung Park, Bo Ram Lee, Chi Ho Jo, Hyuck Hur, Wang Mo Jung
  • Negative electrode active material having high output characteristics and lithium secondary battery including the same
    Patent number: 11165059
    Abstract: A negative electrode active material including lithium titanium oxide particles, wherein the lithium titanium oxide particles have a Na content of 50 ppm-300 ppm, a K content of 500 ppm-2400 ppm and a crystallite size of 100-200 nm, and a lithium secondary battery including the same.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: November 2, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Bin Park, Ji-Young Park, Bo-Ram Lee, Chi-Ho Jo, Jung-Min Han, Hyuck Hur, Wang-Mo Jung
  • Positive electrode active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including the positive electrode active material
    Patent number: 11152617
    Abstract: The present invention relates to a positive electrode active material for a lithium secondary battery which includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein a portion of nickel (Ni) sites of the lithium composite transition metal oxide is substituted with tungsten (W), and an amount of a lithium tungsten oxide remaining on surfaces of lithium composite transition metal oxide particles is 1,000 ppm or less.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: October 19, 2021
    Inventors: Ji Hye Kim, Byung Chun Park, So Ra Baek, Tae Gu Yoo, Wang Mo Jung
  • Positive Electrode Active Material For Secondary Battery, And Secondary Battery Comprising The Same
    Publication number: 20210313573
    Abstract: In one embodiment, a positive electrode active material for a secondary battery, the positive electrode active material being a primary particle having a monolithic structure that includes a lithium composite metal oxide of Formula 1 below, wherein the primary particle has an average particle size (D50) of 2 ?m to 20 ?m and a Brunauer-Emmett-Teller (BET) specific surface area of 0.15 m2/g to 0.5 m2/g, and wherein the positive electrode active material has a rolling density of 3.0 g/cc or higher under a pressure of 2 ton·f: LiaNi1-x-yCoxM1yM3zM2wO2??[Formula 1] in Formula 1, M1 is at least one selected from the group consisting of Al and Mn, M2 is any one or two or more elements selected from the group consisting of Zr, Ti, Mg, Ta, and Nb, M3 is any one or two or more elements selected from the group consisting of W, Mo, and Cr, and 1.0?a?1.5, 0?x?0.5, 0?y?0.5, 0.005?z?0.01, 0?w?0.04, 0<x+y?0.7.
    Type: Application
    Filed: June 21, 2021
    Publication date: October 7, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Byung Chun Park, Wang Mo Jung, Seong Hoon Kang, Ju Kyung Shin, Sang Min Park, Sang Wook Lee
  • Positive Electrode Active Material for Secondary Battery and Lithium Secondary Battery Including the Same
    Publication number: 20210305566
    Abstract: A positive electrode active material for a secondary battery which includes a nickel-based lithium composite transition metal oxide including nickel (Ni), wherein the lithium composite transition metal oxide satisfies Equation 1 and Equation 2 below 80 nm?crystallite sizeFWHM?150 nm ??[Equation 1] ? size(|crystallite sizeIB?crystallite sizeFWHM|)?20 ??[Equation 2] wherein, in Equation 1 and Equation 2, crystallite sizeFWHM is a crystallite size obtained by calculating from X-ray diffraction (XRD) data using a full width at half maximum (FWHM) method, and crystallite sizeIB is a crystallite size obtained by calculating from XRD data using an integral breadth (IB) method.
    Type: Application
    Filed: January 31, 2020
    Publication date: September 30, 2021
    Applicant: LG Chem, Ltd.
    Inventors: So Ra Baek, Eun Sol Lho, Wang Mo Jung, Sang Wook Lee, Eun Jo
  • Positive Electrode Active Material For Lithium Secondary Battery, Comprising Lithium Cobalt Oxide For High Voltage, And Method For Preparing Same
    Publication number: 20210296647
    Abstract: The present invention provides a positive active material for a rechargeable lithium battery, the active material including a dopant and having a crystalline structure in which metal oxide layers (MO layers) including metals and oxygen and reversible lithium layers are repeatedly stacked, wherein in a lattice configured by oxygen atoms of the MO layers adjacent to each other, the dopant time of charge, thereby forming a lithium trap and/or lithium dumbbell structure.
    Type: Application
    Filed: June 8, 2021
    Publication date: September 23, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Sung Bin Park, Young Uk Park, Ji Young Park, Bo Ram Lee, Chi Ho Jo, Young Cheol Choi, Hyuck Hur, Wang Mo Jung
  • Positive electrode active material for secondary battery and method of preparing the same
    Patent number: 11121357
    Abstract: The present invention relates to a positive electrode active material for a secondary battery, which includes a core including a lithium composite metal oxide, and a surface treatment layer which is disposed on the core and includes an amorphous oxide containing a lithium (Li) oxide, a boron (B) oxide, and an aluminum (Al) oxide, wherein an amount of a lithium by-product present on a surface of the positive electrode active material is less than 0.55 wt % based on a total weight of the positive electrode active material, and a method of preparing the same.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: September 14, 2021
    Inventors: So Ra Baek, Ji Hye Kim, Tae Gu Yoo, Wang Mo Jung, Byung Chun Park
  • Negative electrode active material having high output characteristics and lithium secondary battery including the same
    Patent number: 11114654
    Abstract: Disclosed are a negative electrode active material including lithium titanium oxide particles, wherein the lithium titanium oxide particles have an average particle diameter (D50) of 0.5-9 ?m, a specific surface area of 3-7 m2/g, and a pellet density of 1.7 g/cc or more under a pressure of 64 MPa, and a lithium secondary battery including the same.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: September 7, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Bo-Ram Lee, Sung-Bin Park, Ji-Young Park, Chi-Ho Jo, Jung-Min Han, Hyuck Hur, Wang-Mo Jung
  • Method for Preparing Positive Electrode Additive for Lithium Secondary Battery, and Positive Electrode Additive for Lithium Secondary Battery Prepared Thereby
    Publication number: 20210265614
    Abstract: The present disclosure relates to a method for preparing a positive electrode additive for a lithium secondary battery having a high irreversible capacity and being capable of preventing gelation and reducing gas generation, and a positive electrode additive prepared thereby. The method for preparing the positive electrode additive includes the steps of: mixing a lithium raw material, a nickel raw material and, optionally, a raw material containing an element M, and then heat-treating the mixture, thereby preparing a predetermined lithium nickel oxide, wherein the lithium raw material includes Li2O and LiOH, and the LiOH is used in an amount of 5 to 10% by weight with respect to the total weight of the lithium raw material.
    Type: Application
    Filed: October 15, 2019
    Publication date: August 26, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Boram Lee, Sin Young Park, Daejin Lee, Hakyoon Kim, Taegon Kim, Wang Mo Jung
  • Positive electrode active material for secondary battery, positive electrode for secondary battery and secondary battery comprising the same
    Patent number: 11101462
    Abstract: The present invention provides a positive electrode active material for a secondary battery, a positive electrode for a secondary battery, and a secondary battery including the same, the positive electrode active material including a first lithium-nickel oxide particle having an average particle size (D50) of more than 8 ?m to 20 ?m or less, and a second lithium-nickel oxide particle having an average particle size (D50) of 8 ?m or less, wherein the first lithium-nickel oxide particle has a particle strength of 100 MPa to 250 MPa, the second lithium-nickel oxide particle has a particle strength of 50 MPa to 100 MPa, a ratio r of the strength of the first lithium-nickel oxide particle to the strength of the second lithium-nickel oxide particle satisfies Equation 1 set forth herein.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: August 24, 2021
    Inventors: Chi Ho Jo, Sin Young Park, Wang Mo Jung, Byung Chun Park, So Ra Baek
  • Positive electrode active material for secondary battery, and secondary battery comprising the same
    Patent number: 11081694
    Abstract: The present invention provides a positive electrode active material for a secondary battery, the positive electrode active material being a primary particle having a monolithic structure that includes a lithium composite metal oxide of Formula 1 below, wherein the primary particle has an average particle size (D50) of 2 ?m to 20 ?m and a Brunauer-Emmett-Teller (BET) specific surface area of 0.15 m2/g to 1.9 m2/g, and a secondary battery including the same.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: August 3, 2021
    Inventors: Byung Chun Park, Wang Mo Jung, Seong Hoon Kang, Ju Kyung Shin, Sang Min Park, Sang Wook Lee