Patents by Inventor Chul Haeng Lee

Chul Haeng Lee 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).

  • Electrolyte for Lithium Secondary Battery and Lithium Secondary Battery Including the Same
    Publication number: 20220209295
    Abstract: An electrolyte for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, an electrolyte includes a lithium salt, an organic solvent, and at least one cyano silane-based compound selected from the group consisting of compounds represented by Formulae 1 to 3.
    Type: Application
    Filed: April 27, 2020
    Publication date: June 30, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jung Min Lee, Young Min Lim, Chul Haeng Lee
  • Lithium Secondary Battery Having Improved Cycle Characteristics
    Publication number: 20220209302
    Abstract: A lithium secondary battery is disclosed herein. In some embodiments, a lithium secondary battery which includes a positive electrode, a negative electrode including a carbon-based material and a silicon-based compound, a non-aqueous electrolyte solution containing LiPF6, LiN(FSO2)2, and a non-aqueous organic solvent, and a separator, wherein the non-aqueous organic solvent includes a fluorine-based cyclic carbonate organic solvent and a fluorine-based linear carbonate organic solvent.
    Type: Application
    Filed: July 31, 2020
    Publication date: June 30, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Hyun Seung Kim, Chul Haeng Lee, Jeong Woo Oh
  • Lithium Secondary Battery
    Publication number: 20220209230
    Abstract: A lithium secondary battery is disclosed herein. In some embodiments, a lithium secondary battery includes a positive electrode including a lithium transition metal oxide represented by Formula 1, a negative electrode, a non-aqueous electrolyte solution containing a lithium salt, a first non-aqueous solvent, and a second non-aqueous solvent, and a separator, wherein the first non-aqueous solvent is a carbonate-based organic solvent, the second non-aqueous solvent is a fluorine-based organic solvent, and a volume ratio of the first non-aqueous solvent to the second non-aqueous solvent is in a range of 5:5 to 9:1.
    Type: Application
    Filed: July 21, 2020
    Publication date: June 30, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jun Hyeok Han, Kyoung Ho Ahn, Chul Haeng Lee, Sol Ji Park
  • Non-Aqueous Electrolyte Solution Additive for Lithium Secondary Battery, and Non-Aqueous Electrolyte Solution for Lithium Secondary Battery and Lithium Secondary Battery Which Include the Same
    Publication number: 20220209294
    Abstract: An additive for a non-aqueous solution of a lithium secondary battery, a non-aqueous electrolyte solution including the same, and a lithium secondary battery include the same are disclosed herein. In some embodiments, an additive is a compound represented by Formula 1. The additive may suppress dissolution of transition metal by forming a stable film on a surface of a positive electrode. A lithium secondary battery including the non-aqueous electrolyte solution having the additive has improved swelling and capacity characteristics at high voltage and during high-temperature storage because dissolution of metallic impurities causing failure in the battery is suppressed.
    Type: Application
    Filed: April 16, 2020
    Publication date: June 30, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jung Min Lee, Young Min Lim, Chul Haeng Lee
  • Non-Aqueous Electrolyte Solution for Lithium Secondary Battery and Lithium Secondary Battery Including the Same
    Publication number: 20220200051
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt, an organic solvent, and an additive, wherein the additive includes 1,4-dicyano-2-butene (DCB) and a compound represented by Formula 1.
    Type: Application
    Filed: November 4, 2020
    Publication date: June 23, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jung Min Lee, Young Min Lim, Chul Eun Yeom, Chul Haeng Lee
  • Non-Aqueous Electrolyte for Lithium Secondary Battery and Lithium Secondary Battery Including the Same
    Publication number: 20220181691
    Abstract: A non-aqueous electrolyte for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte for a lithium secondary battery includes an organic solvent, a lithium salt, and a compound represented by Formula 1. In some embodiments, the compound represented by Formula 1 is present in an amount of 0.1 part by weight to 3 parts by weight based on 100 parts by weight of the non-aqueous electrolyte.
    Type: Application
    Filed: April 24, 2020
    Publication date: June 9, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jeong Woo Oh, Chul Haeng Lee, Hyung Tae Kim
  • Non-Aqueous Electrolyte Solution for Lithium Secondary Battery and Lithium Secondary Battery Including the Same
    Publication number: 20220166069
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes a lithium salt, a fluorine-based linear ether solvent, a fluorine-based cyclic carbonate solvent, and a fluorine-based lithium compound, wherein the fluorine-based linear ether solvent and the fluorine-based cyclic carbonate solvent are present in a weight ratio of 6:4 to 9:1. In some embodiments, a lithium secondary battery having the non-aqueous electrolyte solvent has improved high-temperature storage characteristics.
    Type: Application
    Filed: March 20, 2020
    Publication date: May 26, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jung Min Lee, Young Min Lim, Chul Haeng Lee
  • Gel polymer electrolyte composition and lithium secondary battery including the same
    Patent number: 11342585
    Abstract: The present invention relates to a gel polymer electrolyte composition for a lithium secondary battery, a gel polymer electrolyte prepared by polymerizing the same, and a secondary battery including the gel polymer electrolyte, and particularly, to a gel polymer electrolyte composition for a lithium secondary battery, which includes a lithium salt, a non-aqueous organic solvent, an ionic liquid, an oligomer having a specific structure, a flame retardant, and a polymerization initiator, a gel polymer electrolyte formed by polymerizing the gel polymer electrolyte composition in an inert atmosphere, and a lithium secondary battery in which flame retardancy and high-temperature stability are improved by including the gel polymer electrolyte.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: May 24, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Won Kyung Shin, Kyoung Ho Ahn, Chul Haeng Lee, Jung Hoon Lee
  • Polymer electrolyte composition including perfluorinated ionomer and inorganic additive and lithium secondary battery including the same
    Patent number: 11335947
    Abstract: The present invention relates to a composition for a polymer electrolyte and a lithium secondary battery using the same, and particularly, to a composition for a polymer electrolyte which includes a single ion-conductive polymer including a unit represented by Chemical Formula 1; and at least one additive selected from the group consisting of a ceramic electrolyte and inorganic particles, wherein a weight ratio of the single ion-conductive polymer:the additive(s) is 1:0.1 to 1:9, and a lithium secondary battery which exhibits an improvement in cell performance by including the same.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: May 17, 2022
    Inventors: Kyoung Ho Ahn, Sol Ji Park, Jeong Woo Oh, Jung Hoon Lee, Chul Haeng Lee
  • Lithium secondary battery having improved high-temperature storage characteristics
    Patent number: 11329313
    Abstract: A lithium secondary battery is disclosed herein. In some embodiments, a lithium secondary battery which includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte solution, wherein the positive electrode includes a positive electrode active material represented by Formula 1, and the non-aqueous electrolyte solution includes a non-aqueous organic solvent, a first lithium salt, lithium bis(fluorosulfonyl)imide as a second lithium salt, and an additive, wherein a molar ratio of the first lithium salt to the second lithium salt is in a range of 1:0.01 to 1:1, and the additive is a mixed additive which includes fluorobenzene, tetravinylsilane, and tertiary butylbenzene in a weight ratio of 1:0.05:0.1 to 1:1:1.5. Li(NiaCobMnc)O2??[Formula 1] (in Formula 1, 0.65<a?0.9, 0.05?b<0.2, 0.05?c<0.2, and a+b+c=1.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: May 10, 2022
    Inventors: Young Min Lim, Chul Haeng Lee
  • Electrolyte for Lithium Secondary Battery and Lithium Secondary Battery Including the Same
    Publication number: 20220140391
    Abstract: The present invention relates to an electrolyte for a lithium secondary battery and a lithium secondary battery including the same. In some embodiments, the electrolyte includes a lithium salt, a first additive, a second additive, and an organic solvent, wherein the first additive includes a compound represented by Formula 1 and the second additive includes a compound represented by Formula 2.
    Type: Application
    Filed: February 26, 2020
    Publication date: May 5, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Hyun Seung Kim, Yu Ha An, Chul Haeng Lee, Jeong Woo Oh
  • Gel polymer electrolyte composition, gel polymer electrolyte prepared thereby, and lithium secondary battery including the gel polymer electrolyte
    Patent number: 11316194
    Abstract: The present invention relates to a gel polymer electrolyte composition and a lithium secondary battery including the same, and particularly, to a gel polymer electrolyte composition, in which flame retardancy is improved by including an ionic liquid, instead of a non-aqueous organic solvent, as well as a lithium salt, a polymerization initiator, and an oligomer having a specific structure, and a lithium secondary battery in which high-temperature stability is improved by including the same.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: April 26, 2022
    Assignee: LG Energy Solution, Ltd.
    Inventors: Won Kyung Shin, Kyoung Ho Ahn, Chul Haeng Lee
  • Lithium Secondary Battery
    Publication number: 20220123297
    Abstract: A lithium secondary battery is disclosed herein. In some embodiments, a lithium secondary battery including a positive electrode including a lithium-nickel-cobalt-manganese-based oxide as a positive electrode active material, a negative electrode including a carbon-based negative electrode active material, a separator interposed between the negative electrode and the positive electrode, and a non-aqueous electrolyte solution containing a lithium salt, an organic solvent, and an additive. The organic solvent includes fluoroethylene carbonate in amount of 10 wt % or greater and ethylene carbonate in an amount of 20 wt % or less, based on the total weight of the organic solvent. The additive includes propene sultone and lithium fluoromalonato (difluoro) borate. The driving voltage of the lithium secondary battery is 4.35 V or greater.
    Type: Application
    Filed: March 26, 2020
    Publication date: April 21, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jung Min Lee, Young Min Lim, Chul Haeng Lee
  • Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery including the same
    Patent number: 11309583
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In an embodiment, a non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt, an organic solvent, and an additive, wherein the additive is a mixed additive which includes lithium difluorophosphate, fluorobenzene, tetravinylsilane, and a compound containing one sulfonate group or sulfate group in a weight ratio of 1:2:0.05:0.5 to 1:8:0.3:2.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: April 19, 2022
    Inventors: Ha Eun Kim, Young Min Lim, Gwang Yeon Kim, Chul Haeng Lee
  • Electrolyte for Lithium Secondary Battery and Lithium Secondary Battery Including The Same
    Publication number: 20220115701
    Abstract: An electrolyte for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, an electrolyte includes a lithium salt, an organic solvent, and an additive, wherein the additive includes a compound represented by Formula 1 and a compound represented by Formula 2.
    Type: Application
    Filed: January 23, 2020
    Publication date: April 14, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Yu Ha An, Hyun Seung Kim, Jeong Woo Oh, Chul Haeng Lee
  • NON-AQUEOUS ELECTROLYTE SOLUTION ADDITIVE, AND NON-AQUEOUS ELECTROLTYE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY WHICH INCLUDE THE SAME
    Publication number: 20220089548
    Abstract: A non-aqueous electrolyte solution additive, a non-aqueous electrolyte solution for a lithium secondary battery including the same, and a lithium secondary battery including the non-aqueous electrolyte solution are disclosed herein. In some embodiments, the non-aqueous electrolyte solution additive includes a Lewis base compound capable of rapidly reacting with an acid. In some embodiments, the lithium secondary battery including the non-aqueous electrolyte solution has improved high-temperature storage durability.
    Type: Application
    Filed: January 16, 2020
    Publication date: March 24, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Hyun Seung Kim, Chul Haeng Lee, Yu Ha An, Jeong Woo Oh
  • COMPOSITION FOR GEL POLYMER ELECTROLYTE AND LITHIUM SECONDARY BATTERY INCLUDING GEL POLYMER ELECTROLYTE FORMED THEREFROM
    Publication number: 20220085410
    Abstract: The present invention relates to a composition for a gel polymer electrolyte, which includes a lithium salt, a non-aqueous organic solvent, a polymerization initiator, and an oligomer containing a polycarbonate-based repeating unit, a gel polymer electrolyte in which mechanical strength and ion transfer capability are improved by polymerization of the composition for a gel polymer electrolyte, and a lithium secondary battery in which external impact and stability during high-temperature storage are improved by including the gel polymer electrolyte.
    Type: Application
    Filed: November 6, 2019
    Publication date: March 17, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Kyoung Ho AHN, Jung Hoon LEE, Won Kyung SHIN, Jae Won LEE, Min Jung KIM, Chul Haeng LEE
  • Electrolyte for Lithium Secondary Battery and Lithium Secondary Battery Including the Same
    Publication number: 20220077498
    Abstract: An electrolyte for a lithium secondary battery and a lithium second battery including the same are disclosed herein. In some embodiments, an electrolyte includes an additive containing a compound represented by Formula 1, an oligomer containing a unit represented by Formula 2 and having an acrylate group at an end thereof, a lithium salt, and an organic solvent.
    Type: Application
    Filed: January 17, 2020
    Publication date: March 10, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jeong Woo Oh, Chul Haeng Lee, Hyun Seung Kim, Hyung Tae Kim
  • COMPOSITION FOR POLYMER ELECTROLYTE AND LITHIUM SECONDARY BATTERY INCLUDING POLYMER ELECTROLYTE PREPARED THEREFROM
    Publication number: 20220037695
    Abstract: The present invention relates to a composition for a polymer electrolyte which includes a polymerizable oligomer capable of forming an excellent crosslink during a polymerization reaction. Also, the present invention relates to a polymer electrolyte, which may ensure high oxidation stability and ionic conductivity by using the composition for a polymer electrolyte, and a lithium secondary battery including the same.
    Type: Application
    Filed: October 4, 2019
    Publication date: February 3, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Kyoung Ho AHN, Sol Ji PARK, Jun Hyeok HAN, Chul Haeng LEE, Jung Hoon LEE
  • Polymer for Gel Polymer Electrolyte, Gel Polymer Electrolyte and Lithium Secondary Battery Comprising the Same
    Publication number: 20220025126
    Abstract: A polymer for a gel polymer electrolyte, a gel polymer electrolyte and a lithium secondary battery comprising the same are disclosed herein. In some embodiments, a polymer for the gel polymer electrolyte includes a copolymer having a main chain and a first side chain and a second side chain bonded to the main chain, wherein the main chain contains a fluoropolymer, wherein the first side chain contains a siloxane group and the second side chain contains an acrylic polymer. The polymer improves stability of a gel polymer electrolyte and a lithium secondary battery including the same.
    Type: Application
    Filed: August 10, 2020
    Publication date: January 27, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Jeongae Yoon, Solji Park, Kyoung Ho Ahn, Sujeong Kim, Chul Haeng Lee, Sung Soo Yoon