Patents by Inventor Ji-Jun Hong
Ji-Jun Hong 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: 20240151361Abstract: A hydrogen supply method includes a two-side heat exchange mode in which both introducing a second fluid into a hydrogen storage part after the second fluid exchanges heat with a first fluid in a second heat exchanger in a state in which a compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in a thermal device are performed. The method also includes a one-side heat exchange mode in which one of introducing the second fluid into the hydrogen storage part after the second fluid exchanges heat with the first fluid in the second heat exchanger in a state in which the compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in the thermal device is performed.Type: ApplicationFiled: August 30, 2023Publication date: May 9, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Yeon Ho Kim, Hoon Mo Park, Kyung Moon Lee, Dong Hoon Nam, Ji Hye Park, Young Jin Cho, Jea Wan Kim, Byeong Soo Shin, Ji Hoon Lee, Ho Young Jeong, Suk Hoon Hong, Man Hee Park, Yeong Jun Kim, Jae Yeon Kim, Ho Chan An
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Publication number: 20240147592Abstract: The present disclosure relates to a light emitting diode (LED) driving device that may expand a usable range of LED current and battery voltage by reducing heat generation of an integrated circuit, and an LED lighting device including the same, which may include a current controller that constantly controls an LED current flowing through an LED string and an IC heat dissipation part connected to a node between the LED string and the current controller to dissipate IC heat of the current controller, wherein when a battery voltage supplied to the LED string increases, the IC heat dissipation part reduces a first LED current flowing from the LED string to the current controller and simultaneously increases a second LED current flowing from the LED string to the current controller via the IC heat dissipation part, thereby reducing the IC heat generation of the current controller.Type: ApplicationFiled: November 1, 2023Publication date: May 2, 2024Applicant: LX SEMICON CO., LTD.Inventors: Byung Jun SEO, Ji Hwan KIM, Young Jin WOO, Jong Min LEE, Ju Pyo HONG
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Publication number: 20220285736Abstract: An electrode assembly includes: a pocketing positive electrode including a positive electrode current collector, positive electrode active materials applied onto two opposite surfaces of the positive electrode current collector, an insulating member configured to surround an edge of the positive electrode current collector except for a positive electrode uncoated portion protruding the edge of the positive electrode current collector, and separators positioned on upper and lower surfaces of the insulating member so as to cover the positive electrode active materials and the insulating member; a negative electrode including a negative electrode current collector and a negative electrode active material applied onto at least one of two opposite surfaces of the negative electrode current collector, the negative electrode being stacked alternately with the pocketing positive electrode; and a binding member attached to the pocketing positive electrode and the negative electrode.Type: ApplicationFiled: July 2, 2020Publication date: September 8, 2022Inventors: Ji Hoon JANG, Chang Moon JEONG, Ji Jun HONG
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Patent number: 10879554Abstract: A thin film battery includes: a cathode body; and an anode body which is laminated on at least one of an upper portion or a lower portion of the abode body, in which the cathode body includes: a cathode plate on which a cathode active material is applied; a pair of separators which covers an upper surface and a lower surface of the cathode plate; and a polymer insulating film unit interposed between the pair of separators and a portion of the polymer insulating film unit which protrudes outwardly from an edge of the separator is bonded to an anode plate of the anode body.Type: GrantFiled: January 19, 2017Date of Patent: December 29, 2020Assignee: ROUTEJADE INC.Inventors: Ji Jun Hong, In Joong Kim, Young Ho Jung, Young Hun Jin, Taek Joo Jung
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Publication number: 20200168940Abstract: Provided is a thin film battery, including: an anode body; and a cathode body which is laminated on at least one of an upper portion or a lower portion of the abode body, in which the anode body includes: an anode plate on which an anode active material is applied; a pair of separators which covers an upper surface and a lower surface of the anode plate; and a polymer insulating film unit interposed between the pair of separators and a portion of the polymer insulating film unit which protrudes outwardly from an edge of the separator is bonded to a cathode plate of the cathode body.Type: ApplicationFiled: January 19, 2017Publication date: May 28, 2020Inventors: Ji Jun HONG, In Joong KIM, Young Ho JUNG, Young Hun JIN, Taek Joo JUNG
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Patent number: 10559790Abstract: The present invention relates to a lithium ion secondary battery, and more particularly, to a lithium ion secondary battery which makes the best use of an accommodating space in electronic apparatus in which a secondary battery is accommodated or mounted to maximize a performance of the battery. A secondary battery includes an electrode assembly in which a plurality of pocketing anode bodies and a plurality of cathode bodies are alternately stacked, in which a concavely recessed space is formed in the electrode assembly, and the space may be formed in the plurality of pocketing anode bodies and the plurality of cathode bodies excluding a cathode body disposed at the lowest end of the electrode assembly.Type: GrantFiled: June 13, 2016Date of Patent: February 11, 2020Assignee: ROUTE JADE INC.Inventors: Ji Jun Hong, In Joong Kim, Kyung Joon Kim, Young Ho Jung, Young Hun Jin, Taek Joo Jung
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Patent number: 10297816Abstract: Disclosed is an electrode active material including a core formed from one selected from the group consisting of lithium-containing transition metal oxide, a carbon material, a lithium metal, and a metal compound, or mixtures thereof, and a shell formed on a surface of the core and including lithium metal oxide particles and polymer, and a lithium secondary battery using the same.Type: GrantFiled: February 9, 2012Date of Patent: May 21, 2019Assignee: Kokam Co., Ltd.Inventors: Ji-Jun Hong, Sung-Tae Ko, Yoon-Jeong Heo
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Patent number: 10283762Abstract: Provided are an anode active material for a lithium secondary battery, a method of preparing the same and a lithium secondary battery comprising the same. The anode active material for a lithium secondary battery includes a carbonaceous material core; and a shell formed outside of the carbonaceous material core. The shell includes a plurality of spinel-type lithium titanium oxide particles, and a plurality of metal oxide particles, wherein the metal belongs to group 4 or 13 of the periodic table, the metal oxide particles filling voids formed by the carbonaceous material and the plurality of spinel-type lithium titanium oxide particles. The anode active material for a lithium secondary battery has the metal oxide shell, and thus has the improved conductivity, a high output density, and consequently excellent electrical characteristics. The lithium secondary battery manufactured using the anode active material ensures safety sufficiently.Type: GrantFiled: May 26, 2009Date of Patent: May 7, 2019Assignee: Kokam Co., Ltd.Inventors: Ji-Jun Hong, Sung-Tae Ko, Yoon-Jeong Heo
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Publication number: 20190088936Abstract: Provided are an anode active material for a lithium secondary battery, a method of preparing the same and a lithium secondary battery comprising the same. The anode active material for a lithium secondary battery includes a carbonaceous material core; and a shell formed outside of the carbonaceous material core. The shell includes a plurality of spinel-type lithium titanium oxide particles, and a plurality of metal oxide particles, wherein the metal belongs to group 4 or 13 of the periodic table, the metal oxide particles filling voids formed by the carbonaceous material and the plurality of spinel-type lithium titanium oxide particles. The anode active material for a lithium secondary battery has the metal oxide shell, and thus has the improved conductivity, a high output density, and consequently excellent electrical characteristics. The lithium secondary battery manufactured using the anode active material ensures safety sufficiently.Type: ApplicationFiled: May 26, 2009Publication date: March 21, 2019Applicant: KOKAM CO., LTD.Inventors: Ji-Jun Hong, Sung-Tae Ko, Yoon-Jeong Heo
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Patent number: 10090501Abstract: Disclosed is a high heat resistance composite separator including a porous substrate having a plurality of pores, an inorganic coating layer formed on one surface of the porous substrate, the inorganic coating layer including a plurality of inorganic particles and a binder polymer disposed on a portion or all of surfaces of the inorganic particles to connect and bind the inorganic particles, and a high heat resistance polymer coating layer formed on the other surface of the porous substrate, the high heat resistance polymer coating layer including a high heat resistance polymer and inorganic particles dispersed in the high heat resistance polymer.Type: GrantFiled: February 13, 2012Date of Patent: October 2, 2018Assignee: Kokam Co., Ltd.Inventors: Ji-Jun Hong, Sung-Tae Ko, Yoon-Jeong Heo, Yoo-Jung Kwon
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Patent number: 10056597Abstract: Disclosed is a connecting structure and method between a grid and an electrode tab of a secondary battery, which may ensure stable connection between the grid and the electrode tab of an electrode assembly and allow improved productivity. The connecting structure includes a grid integrally extending from an electrode plate of a secondary battery, an electrode tab connected to the grid, and a laser welding portion connecting the grid and the electrode tab. Also, a connecting method between a grid and an electrode tab of a secondary battery includes (a) fixing the grid with a jig, (b) cutting the grid, and (c) stacking the grid and the electrode tab and connecting the grid and the electrode tab by means of laser welding.Type: GrantFiled: December 29, 2015Date of Patent: August 21, 2018Assignee: Kokam Co., Ltd.Inventors: Pan-Kyu Park, Ki-Hong Park, Ji-Jun Hong, Choong-Yeon Chong
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Publication number: 20180183106Abstract: The present invention relates to a lithium ion secondary battery, and more particularly, to a lithium ion secondary battery which makes the best use of an accommodating space in electronic apparatus in which a secondary battery is accommodated or mounted to maximize a performance of the battery. A secondary battery includes an electrode assembly in which a plurality of pocketing anode bodies and a plurality of cathode bodies are alternately stacked, in which a concavely recessed space is formed in the electrode assembly, and the space may be formed in the plurality of pocketing anode bodies and the plurality of cathode bodies excluding a cathode body disposed at the lowest end of the electrode assembly.Type: ApplicationFiled: June 13, 2016Publication date: June 28, 2018Inventors: Ji Jun HONG, In Joong KIM, Kyung Joon KIM, Young Ho JUNG, Young Hun JIN, Taek Joo JUNG
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Patent number: 9647262Abstract: The present invention relates to a core-shell type anode active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery comprising the same. The anode active material for a lithium secondary battery according to the present invention comprises a carbon based material core portion; and a shell portion formed outside of the carbon based material core portion by coating the carbon based material core portion with a spinel-type lithium titanium oxide. The anode active material for a lithium secondary battery according to the present invention has the metal oxide shell portion, and thus has the improved conductivity, a high output density, and consequently excellent electrical characteristics.Type: GrantFiled: November 6, 2007Date of Patent: May 9, 2017Assignee: Kokam Co., Ltd.Inventors: Ji-Jun Hong, Sung-Tae Ko, Yoon-Jeong Heo
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Publication number: 20160260952Abstract: Disclosed is a connecting structure and method between a grid and an electrode tab of a secondary battery, which may ensure stable connection between the grid and the electrode tab of an electrode assembly and allow improved productivity. The connecting structure includes a grid integrally extending from an electrode plate of a secondary battery, an electrode tab connected to the grid, and a laser welding portion connecting the grid and the electrode tab. Also, a connecting method between a grid and an electrode tab of a secondary battery includes (a) fixing the grid with a jig, (b) cutting the grid, and (c) stacking the grid and the electrode tab and connecting the grid and the electrode tab by means of laser welding.Type: ApplicationFiled: December 29, 2015Publication date: September 8, 2016Inventors: Pan-Kyu Park, Ki-Hong Park, Ji-Jun Hong, Choong-Yeon Chong
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Publication number: 20160164078Abstract: Disclosed is an electrode active material including a core formed from one selected from the group consisting of lithium-containing transition metal oxide, a carbon material, a lithium metal, and a metal compound, or mixtures thereof, and a shell formed on a surface of the core and including lithium metal oxide particles and polymer, and a lithium secondary battery using the same.Type: ApplicationFiled: February 9, 2012Publication date: June 9, 2016Applicant: Kokam Co., Ltd.Inventors: Ji-Jun Hong, Sung-Tae Ko, Yoon-Jeong Heo
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Patent number: 9252413Abstract: The present invention relates to a lithium secondary battery. More specifically, according to embodiments of the present invention the lithium battery, which includes a cathode, an anode, and a separate membrane inserted between the cathode and the anode, is characterized in that the separator membrane is a polyolefin porous membrane which has an aramid coating layer; and the cathode includes a lithium metal oxide cathode active material which has an olivine-type iron phosphate lithium coating layer, or the anode includes a carbon anode active material which has a spinel-type lithium titanium oxide coating layer. The lithium secondary battery in accordance with embodiments of the present invention has excellent basic electric performance and improved stability.Type: GrantFiled: December 2, 2013Date of Patent: February 2, 2016Assignee: KOKAM CO., LTD.Inventors: Ji-Jun Hong, In-Beom Hwang, Sung-Tae Ko, Yoon-Jeong Heo
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Patent number: 9196884Abstract: Disclosed is a separator for a lithium secondary battery and a lithium secondary battery comprising the same. The separator may include a thermoplastic polyolefin-based polymer porous sheet and an aramid-based non-woven fabric sheet stacked on at least one surface of the polyolefin-based polymer porous sheet, wherein the polyolefin-based polymer sheet and the aramid-based non-woven fabric sheet are adhered with an adhesive, and the adhesive loses an adhesive performance at 80° C. or more to separate the two sheets. The separator has a shut-down function and excellent high-temperature shape stability.Type: GrantFiled: May 11, 2012Date of Patent: November 24, 2015Assignee: Kokam Co., Ltd.Inventors: Ji-Jun Hong, In-Beom Hwang, Sung-Tae Ko, Kwang-Hyun Kim, Yoon-Jeong Heo
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Patent number: 9172091Abstract: Provided are a core-shell type anode active material for lithium secondary batteries including a carbonaceous material core; and a shell formed outside the carbonaceous material core, the shell including a PTC (Positive Temperature Coefficient) medium. The core-shell type anode active material for lithium secondary batteries has the shell including the PTC medium, and thus has the improved conductivity and high output density, exhibiting excellent electrical characteristics. And, a lithium secondary battery manufactured using the anode active material has excellent safety, in particular safety against overcharge and external short circuit.Type: GrantFiled: December 16, 2008Date of Patent: October 27, 2015Assignee: Kokam Co., Ltd.Inventors: Ji-Jun Hong, Sung-Tae Ko, Yoon-Jeong Heo
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Patent number: 8927153Abstract: The present invention relates to a cathode active material for lithium secondary batteries with high safety, a method of preparing the same and lithium secondary batteries comprising the same. The cathode active material of the present invention comprises a lithium metal oxide secondary particle core portion formed by aggregation of lithium metal oxide primary particles; and a shell portion formed by coating the secondary particle core portion with an olivine-structured lithium iron phosphate oxide. The cathode active material of the present invention allows to manufacture lithium secondary batteries with improved safety, especially overcharge characteristics.Type: GrantFiled: October 31, 2007Date of Patent: January 6, 2015Assignees: Daejung Em Co., Ltd., Kokam Co., Ltd.Inventors: Seong-Bae Kim, Woo-Seong Kim, Ji-Jun Hong, Sung-Tae Koh, Yoon-Jeong Heo
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Publication number: 20140370358Abstract: Disclosed is a high heat resistance composite separator including a porous substrate having a plurality of pores, an inorganic coating layer formed on one surface of the porous substrate, the inorganic coating layer including a plurality of inorganic particles and a binder polymer disposed on a portion or all of surfaces of the inorganic particles to connect and bind the inorganic particles, and a high heat resistance polymer coating layer formed on the other surface of the porous substrate, the high heat resistance polymer coating layer including a high heat resistance polymer and inorganic particles dispersed in the high heat resistance polymer.Type: ApplicationFiled: February 13, 2012Publication date: December 18, 2014Applicant: Kokam Co., Ltd.Inventors: Ji-Jun Hong, Sung-Tae Ko, Yoon-Jeong Heo, Yoo-Jung Kwon