Patents by Inventor Jung Moon Sung
Jung Moon Sung 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).
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Publication number: 20230238526Abstract: A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a plurality of a lithium-transition metal composite oxide particle having a shape of a secondary particle in which a plurality of primary particles are aggregated. The lithium-transition metal composite oxide particle includes a lithium-molybdenum-containing portion having a hexagonal close-packed structure formed between the primary particles.Type: ApplicationFiled: January 19, 2023Publication date: July 27, 2023Inventors: Sang Min PARK, Hee Jun KWEON, Myoung Lae KIM, Sang Bok KIM, Jung Moon SUNG, Keum Jung YOON, Tae Kyoung LEE, Ji Hoon CHOI
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Publication number: 20230117843Abstract: Embodiments of the present invention provide a cathode active material for a lithium secondary battery. The cathode active material for a lithium secondary battery includes lithium-transition metal composite oxide particles, and a coating formed on each of the lithium-transition metal composite oxide particles. The coating includes a lithium-sulfur compound and a metal hydroxide. A residual lithium on a surface of the cathode active material is sufficiently removed to improve an ionic conductivity and low-resistance.Type: ApplicationFiled: October 20, 2022Publication date: April 20, 2023Inventors: Sang Bok KIM, Sang Min PARK, Ji Hoon CHOI, Jung Moon SUNG, Sang Hye SHIN, Ji Sun LEE, Jae Young CHOI
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Patent number: 10608225Abstract: Provided are a micro-porous hybrid film and a method for preparing the same, and more particularly, a micro-porous hybrid film capable of improving reliability of a battery by simultaneously improving thermal stability at a high temperature and water properties, and a method for preparing the same. In addition, the present invention relates to a micro-porous hybrid film suitable for a separator of a high capacity/high output lithium secondary battery capable of increasing production stability, long term stability, and performance of the battery by improving adhesive force between a micro-porous film and a coating layer and permeability and minimizing a water content by the coating layer.Type: GrantFiled: December 8, 2017Date of Patent: March 31, 2020Assignees: SK Innovation Co., Ltd., SK IE Technology Co., Ltd.Inventors: Yong Kyoung Kim, Dong Jin Joo, Young Jun Woo, Jae Woong Kim, Kyu Young Cho, Jung Moon Sung, Dong Man Cho
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Patent number: 9997813Abstract: Provided is a lithium air battery in which a catalyst layer of a cathode contacting an electrolyte and using oxygen in the air as an active material is coupled to a membrane through which lithium ions pass, such that even though charge and discharge of the battery is repeated, the catalyst layer may not be detached, and a microporous polyolefin-based film is applied to the battery, such that a water-based electrolyte solvent may be prevented from being evaporated, thereby preventing performance deterioration due to repetition of the charge and discharge of the lithium air battery, and extending life span.Type: GrantFiled: February 18, 2014Date of Patent: June 12, 2018Assignee: SK INNOVATION CO., LTD.Inventors: Myoung Gu Park, Kyong Sik Kim, Seong Ho Chun, Hee Young Sun, Suk Chin Lee, Jung Moon Sung
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Publication number: 20180102525Abstract: Provided are a micro-porous hybrid film and a method for preparing the same, and more particularly, a micro-porous hybrid film capable of improving reliability of a battery by simultaneously improving thermal stability at a high temperature and water properties, and a method for preparing the same. In addition, the present invention relates to a micro-porous hybrid film suitable for a separator of a high capacity/high output lithium secondary battery capable of increasing production stability, long term stability, and performance of the battery by improving adhesive force between a micro-porous film and a coating layer and permeability and minimizing a water content by the coating layer.Type: ApplicationFiled: December 8, 2017Publication date: April 12, 2018Inventors: Yong Kyoung Kim, Dong Jin Joo, Young Jun Woo, Jae Woong Kim, Kyu Young Cho, Jung Moon Sung, Dong Man Cho
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Patent number: 9853273Abstract: Provided are a micro-porous hybrid film and a method for preparing the same, and more particularly, a micro-porous hybrid film capable of improving reliability of a battery by simultaneously improving thermal stability at a high temperature and water properties, and a method for preparing the same. In addition, the present invention relates to a micro-porous hybrid film suitable for a separator of a high capacity/high output lithium secondary battery capable of increasing production stability, long term stability, and performance of the battery by improving adhesive force between a micro-porous film and a coating layer and permeability and minimizing a water content by the coating layer.Type: GrantFiled: December 23, 2013Date of Patent: December 26, 2017Assignee: SK Innovation Co., Ltd.Inventors: Yong Kyoung Kim, Dong Jin Joo, Young Jun Woo, Jae Woong Kim, Kyu Young Cho, Jung Moon Sung, Dong Man Cho
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Patent number: 9564624Abstract: Disclosed is a microporous composite film having a coating layer formed on at least one surface of a microporous polyolefin film, wherein the coating layer simultaneously includes a high thermostable polymer resin and inorganic particles. More specifically, the present invention relates to a microporous composite film in which an area shrinkage at 170° C. for 1 hr is 10% or less; a tensile modulus in each of a machine direction and a transverse direction at 130° C. is 0.5 MPa to 7.0 MPa; a ratio between permeability of a microporous composite film (CCSp) and permeability of a microporous polyolefin film (Sp) is 1.1?CCSp/Sp?3.5; and a permeability of the microporous composite film is 450 sec or less.Type: GrantFiled: June 10, 2011Date of Patent: February 7, 2017Assignee: SK Innovation Co., Ltd.Inventors: Yong Kyoung Kim, Jang Weon Rhee, Dong Jin Joo, Je An Lee, Jung Moon Sung
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Publication number: 20150333311Abstract: Provided are a micro-porous hybrid film and a method for preparing the same, and more particularly, a micro-porous hybrid film capable of improving reliability of a battery by simultaneously improving thermal stability at a high temperature and water properties, and a method for preparing the same. In addition, the present invention relates to a micro-porous hybrid film suitable for a separator of a high capacity/high output lithium secondary battery capable of increasing production stability, long term stability, and performance of the battery by improving adhesive force between a micro-porous film and a coating layer and permeability and minimizing a water content by the coating layer.Type: ApplicationFiled: December 23, 2013Publication date: November 19, 2015Inventors: Yong Kyoung Kim, Dong Jin Joo, Young Jun Woo, Jae Woong Kim, Kyu Young Cho, Jung Moon Sung, Dong Man Cho
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Publication number: 20150236388Abstract: Provided is a lithium air battery in which a catalyst layer of a cathode contacting an electrolyte and using oxygen in the air as an active material is coupled to a membrane through which lithium ions pass, such that even though charge and discharge of the battery is repeated, the catalyst layer may not be detached, and a microporous polyolefin-based film is applied to the battery, such that a water-based electrolyte solvent may be prevented from being evaporated, thereby preventing performance deterioration due to repetition of the charge and discharge of the lithium air battery, and extending life span.Type: ApplicationFiled: February 18, 2014Publication date: August 20, 2015Applicant: SK Innovation Co., Ltd.Inventors: Myoung Gu PARK, Kyong Sik KIM, Seong Ho CHUN, Hee Young SUN, Suk Chin LEE, Jung Moon SUNG
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Publication number: 20130287937Abstract: Disclosed are a multi-layer composite porous film and a manufacturing method thereof. More particularly, a manufacturing method, which includes filling pores on at least one face of a polyolefin microporous film substrate using a solvent, and then, applying a coating solution that contains a polymer binder or the polymer binder and inorganic particles, to the film to form a porous coating layer, as well as the multi-layer composite porous film manufactured by the same, are disclosed. The method for manufacturing the multi-layer composite porous film according to the disclosure may provide a multi-layer composite porous film having excellent permeability and shutdown function, without clogging the pores, by improving a coating process. Moreover, if applying the foregoing porous film as a separator to a battery, the battery having superior performance and high safety may be manufactured.Type: ApplicationFiled: August 12, 2011Publication date: October 31, 2013Applicant: SK INNOVATION CO., LTD.Inventors: Dong Jin Joo, Jang Weon Rhee, Jung Moon Sung, Je An Lee, Yong Kyoung Kim
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Publication number: 20130224558Abstract: Disclosed is a microporous composite film having a coating layer formed on at least one surface of a microporous polyolefin film, wherein the coating layer simultaneously includes a high thermostable polymer resin and inorganic particles. More specifically, the present invention relates to a microporous composite film in which an area shrinkage at 170° C. for 1 hr is 10% or less; a tensile modulus in each of a machine direction and a transverse direction at 130° C. is 0.5 MPa to 7.0 MPa; a ratio between permeability of a microporous composite film (CCSp) and permeability of a microporous polyolefin film (Sp) is 1.1?CCSp/Sp?3.5; and a permeability of the microporous composite film is 450 sec or less.Type: ApplicationFiled: June 10, 2011Publication date: August 29, 2013Applicant: SK INNOVATION CO., LTD.Inventors: Yong Kyoung Kim, Jang Weon Rhee, Dong Jin Joo, Je An Lee, Jung Moon Sung
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Patent number: 8323547Abstract: Disclosed in the present invention are a microporous polyethylene film and a method of manufacture thereof. The polyethylene microporous film manufactured according to the present invention may contribute to an increased productivity of stable products as its extrusion and stretching may be done readily. And thus manufactured product may be used for battery separators and various filters owing to its high gas permeability, superior puncture strength, and small ratio of shrinkage.Type: GrantFiled: May 24, 2007Date of Patent: December 4, 2012Assignee: SK Innovation Co., Ltd.Inventors: Young-Keun Lee, Jang-Weon Rhee, Jung-Moon Sung, Byoung-Cheon Jo, Chol-Ho Lee, Gwi-Gwon Kang, In-Hwa Jung, Je-An Lee
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Patent number: 8313678Abstract: The present invention discloses a microporous high-density polyethylene film for a battery separator, and process for preparing the same. The microporous high-density polyethylene film according to the present invention comprises of high-density polyethylene with weight average molecular weight of 2×105˜4×105, containing not more than 5 wt % of molecules with molecular weight of 1×104 or less and not more than 5 wt % of molecules with molecular weight of 1×106 or more, and has the properties of puncture strength of 0.22 N/?m or more, Darcy's permeability constant of 1.8×10?5 Darcy or more, and shrinkage of 4% or less in machine and transverse direction, respectively. Particularly, the microporous high-density polyethylene film has excellent extrusion-compoundability and stretchability with high productivity and enhances performances and stability of the battery using the film.Type: GrantFiled: May 24, 2007Date of Patent: November 20, 2012Assignee: SK Innovation Co., Ltd.Inventors: Young-Keun Lee, Jang-Weon Rhee, Jung-Moon Sung, Byoung-Cheon Jo
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Patent number: 8057718Abstract: Disclosed herein is a microporous polyethylene film for a battery separator and a method of producing the same. The microporous polyethylene film is made from a resin composition. The resin composition comprises 100 parts by weight of a polyethylene composition including 10-50 wt % polyethylene having a weight average molecular weight of from 2×105 to less than 5×105 (component I) and 90-50 wt % diluent (component II), and 0-150 parts by weight of inorganic powder (component III). The film has a puncture strength of 0.20 N/?m or more and a gas permeability (Darcy's permeability constant) of 1×10?5 Darcy or more. The microporous polyethylene film has excellent physical properties, thus improving the performance and stability of a battery.Type: GrantFiled: January 26, 2007Date of Patent: November 15, 2011Assignee: SK Innovation Co., Ltd.Inventors: Young Keun Lee, Jang Weon Rhee, Jung Moon Sung, Byoung Cheon Jo, Chol Ho Lee
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Patent number: 7947752Abstract: Disclosed is a microporous high density polyethylene film for a battery separator and a method of producing the same. The microporous high density polyethylene film includes high density polyethylene with a weight average molecular weight of 2×105-5×105, containing 5 wt % or less molecule with a molecular weight of 1×104 or less. The microporous high density polyethylene film has tensile strengths of 1,100 kg/cm2 or more in transverse and machine directions respectively, a puncture strength of 0.22 N/?m or more, a gas permeability (Darcy's permeability constant) of 1.3×10?5 Darcy or more, and shrinkages of 5% or less in machine and transverse directions, respectively. Particularly, the microporous high density polyethylene film has an excellent extrusion-compoundabiliy and stretchability and a high productivity, and can improve the performances and stability of a battery produced using the same.Type: GrantFiled: February 12, 2008Date of Patent: May 24, 2011Assignee: SK Energy Co., Ltd.Inventors: Young Keun Lee, Jang Weon Rhee, Won Young Cho, Jung Moon Sung, Byoung Cheon Jo, Chol Ho Lee, In Hwa Jung, Byung Rae Jung
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Publication number: 20090023825Abstract: Disclosed is a microporous polyethylene film for a battery separator and a method of producing the same. The microporous polyethylene film comprises a resin mixture, which includes 100 parts by weight of composition containing 20-50 wt % polyethylene with a weight average molecular weight of 5×104-3×105 (component I) and 80-50 wt % diluent (component II), 0.1-2 parts by weight of peroxide (component III), and 0.05-0.5 parts by weight of anti-oxidant (component IV). The microporous polyethylene film has a puncture strength of 0.22 N/?m or more and a gas permeability (Darcy's permeability constant) of 1.3×10?5 Darcy or more. The present invention increases production efficiency of the microporous film, and improves performances and stability of the battery when the microporous polyethylene film is used in a battery separator.Type: ApplicationFiled: September 12, 2008Publication date: January 22, 2009Inventors: Young Keun Lee, Jang Weon Rhee, Won Young Cho, Jung Moon Sung, Byoung Cheon Jo, Chol Ho Lee, In Hwa Jung, Byung Rae Jung
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Patent number: 7435761Abstract: Disclosed is a microporous polyethylene film for a battery separator and a method of producing the same. The microporous polyethylene film comprises a resin mixture, which includes 100 parts by weight of composition containing 20-50 wt % polyethylene with a weight average molecular weight of 5×104-3×105 (component I) and 80-50 wt % diluent (component II), 0.1-2 parts by weight of peroxide (component III), and 0.05-0.5 parts by weight of anti-oxidant (component IV). The microporous polyethylene film has a puncture strength of 0.22 N/?m or more and a gas permeability (Darcy's permeability constant) of 1.3×10?5 Darcy or more. The present invention increases production efficiency of the microporous film, and improves performances and stability of the battery when the microporous polyethylene film is used in a battery separator.Type: GrantFiled: September 20, 2004Date of Patent: October 14, 2008Assignee: SK Energy Co., Ltd.Inventors: Young Keun Lee, Jang Weon Rhee, Won Young Cho, Jung Moon Sung, Byoung Cheon Jo, Chol Ho Lee, In Hwa Jung, Byung Rae Jung
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Publication number: 20080139681Abstract: Disclosed is a microporous high density polyethylene film for a battery separator and a method of producing the same. The microporous high density polyethylene film includes high density polyethylene with a weight average molecular weight of 2×105?5×105, containing 5 wt % or less molecule with a molecular weight of 1×104 or less. The microporous high density polyethylene film has tensile strengths of 1,100 kg/cm2 or more in transverse and machine directions respectively, a puncture strength of 0.22 N/?m or more, a gas permeability (Darcy's permeability constant) of 1.3×10?5 Darcy or more, and shrinkages of 5% or less in machine and transverse directions, respectively. Particularly, the microporous high density polyethylene film has an excellent extrusion-compoundabiliy and stretchability and a high productivity, and can improve the performances and stability of a battery produced using the same.Type: ApplicationFiled: February 12, 2008Publication date: June 12, 2008Inventors: Young Keun Lee, Jang Weon Rhee, Won Young Cho, Jung Moon Sung, Byoung Cheon Jo, Chol Ho Lee, In Hwa Jung, Byung Rae Jung
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Patent number: 7332531Abstract: Disclosed is a microporous high density polyethylene film for a battery separator and a method of producing the same. The microporous high density polyethylene film includes high density polyethylene with a weight average molecular weight of 2×105-5×105, containing 5 wt % or less molecule with a molecular weight of 1×104 or less. The microporous high density polyethylene film has tensile strengths of 1,100 kg/cm2 or more in transverse and machine directions respectively, a puncture strength of 0.22 N/?m or more, a gas permeability (Darcy's permeability constant) of 1.3×10?5 Darcy or more, and shrinkages of 5% or less in machine and transverse directions, respectively. Particularly, the microporous high density polyethylene film has an excellent extrusion-compoundabiliy and stretchability and a high productivity, and can improve the performances and stability of a battery produced using the same.Type: GrantFiled: October 15, 2004Date of Patent: February 19, 2008Assignee: SK CorporationInventors: Young Keun Lee, Jang Weon Rhee, Won Young Cho, Jung Moon Sung, Byoung Cheon Jo, Chol Ho Lee, In Hwa Jung, Byung Rae Jung
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Publication number: 20070232709Abstract: Disclosed in the present invention are a microporous polyethylene film and a method of manufacture thereof. The polyethylene microporous film manufactured according to the present invention may contribute to an increased productivity of stable products as its extrusion and stretching may be done readily. And thus manufactured product may be used for battery separators and various filters owing to its high gas permeability, superior puncture strength, and small ratio of shrinkage.Type: ApplicationFiled: May 24, 2007Publication date: October 4, 2007Applicant: SK CORPORATIONInventors: Young-Keun LEE, Jang-Weon RHEE, Jung-Moon SUNG, Byoung-Cheon JO, Chol-Ho LEE, Gwi-Gwon KANG, In-Hwa JUNG, Je-An LEE