Hyundai Motor Company

Kia Motors Corporation

Yoon Ji Lee

Sang Jin Park

Hee Yeon Ryu

Hee Jin Woo

Jun Ki Rhee

Young Woo Lee

Ki Chun Lee

In Woo Song

Seung Ho Ahn

Yong Kim

Dae Gun Jin

Eun Ji Kwon

Se Young Lee

Na Ry Shin

Min Soo Kim

Sung Hoon Lim

Sung Ho Ban

Ik Kyu Kim

Sang Mok Park

Jung Young Cho

Donghui Kim

Sung Yeup Chung

Dong Kyu Shin

Dong Gyun Kang

SangJoon Lee

Hae Won Park

A lithium ion secondary battery system includes a chamber to accommodate a lithium ion secondary battery, a charging/discharging device for electrically charging and discharging the lithium ion secondary battery, a pressure plate disposed in the chamber and configured to press the lithium ion secondary battery when the lithium ion secondary battery is electrically charged, a pointed portion disposed in the chamber and configured to bore a hole in a pouch of the lithium ion secondary battery to enable gas generated during the electrical charging of the lithium ion secondary battery to be removed from the pouch, and a sealer configured to seal the pouch after the gas is removed.

System for and method of manufacturing lithium ion secondary battery

A method for checking defects in a lithium ion secondary battery includes primarily charging and degassing the lithium ion secondary battery after manufacture of the secondary battery, secondarily charging and discharging the secondary battery and then measuring one or more of OCVs and IRs of lithium ion secondary battery cells; pressurizing and aging the secondary battery by aging the secondary battery in a state in which a pressure of a designated magnitude or more is applied to the secondary battery, and checking whether or not the secondary battery cells are defective by re-measuring the one or more of OCVs and IRs of the secondary battery cells and then comparing the re-measured one or more of the OCVs and the IRs to the previously measured one or more of the OCVs and the IRs.

Method for checking defects in lithium ion secondary battery and lithium ion secondary battery manufactured thereby

Disclose are a cathode of an all-solid lithium battery, and a secondary battery system using the same. The cathode includes a lithium composite, and a method of manufacturing the lithium composite comprises: dispersing a solid electrolyte to be uniformly distributed in the pores of a mesoporous conductor to provide a solid electrolyte composite, and coating the solid electrolyte composite on the surface of a lithium compound including nonmetallic solids such as S, Se, and Te.

Cathode of all-solid lithium battery and secondary battery using the same

A pouch type battery cell is provided. The battery cell includes a negative electrode and a positive electrode that overlap each other while spaced apart from each other. The negative electrode includes a pair of negative terminals that protrude from a first side of opposite ends of the negative electrode. Additionally, the positive electrode includes a pair of positive terminals that protrude from a second side of opposite ends of the positive electrode.

Pouch type battery cell

A lithium air battery comprising a plurality of unit cells which have different diameters, each unit cell comprises: electrodes including: a disc-shaped positive electrode having a first air flow path passing through the positive electrode in a vertical direction of the lithium air battery and one or more electrolyte flow paths on the positive electrode in a horizontal or vertical direction of the lithium air battery; and an negative electrode having a second air flow path passing through the negative electrode in the vertical direction to coincide with the first air flow path; and a separator disposed between the positive electrode and the negative electrode. The unit cells are stacked in the vertical direction within a stack cell tank such that a diffusion layer is disposed between the respective unit cells. A lowermost unit cell has the greatest diameter and diameters of the remaining unit cells, which are sequentially stacked on a lowermost unit cell, gradually decreases vertically in an upward direction so that the unit cells have a stepped structure.

Lithium air battery

A lithium-air battery system using a vortex tube is provided, in which the vortex tube is connected to an oxygen supply port of a lithium-air battery having a stack form. A high-temperature gas generated in the vortex tube is supplied to the lithium-air battery to induce a stimulating reaction and simultaneously, a low-temperature gas generated in the vortex tube is supplied to a cooling path in the lithium-air battery to realize efficient cooling of the lithium-air battery.

Lithium-air battery system using vortex tube

An anode structure of a lithium sulfur battery includes a sulfur anode laminated on an aluminum foil, and a carbon coating layer disposed between the sulfur anode and a carbon structure layer in which sulfur is immersed. The sulfur anode includes the sulfur, a conductor, and a binder. The carbon structure layer in which sulfur is immersed is a polyester (PE) separation membrane separated from a counter electrode. A loaded amount of sulfur within the anode structure is dispersed to the sulfur anode and the carbon structure layer in which the sulfur is immersed.

Lithium sulfur battery anode structure including carbon coating layer and carbon structure layer immersed with sulfur

Provided herein is a cathode for lithium-sulfur battery. The cathode for lithium-sulfur battery has a structure for improved in charge/discharge efficiency, charge capacity, and life span. In particular, in the cathode structure, an active material is inserted into a porous carbon structure and a surface of the porous carbon structure is densely coated with the conducting material thereby maximizing the contents of an active material and a conducting material in the cathode without a current collector.

Cathode for lithium-sulfur battery

Disclosed are a lithium electrode for a lithium metal battery, which uses a solid high-ionic conductor having a three-dimensional (3D) porous structure, wherein a lithium metal or lithium alloy is filled into each pore and dispersed, and a method for manufacturing the lithium electrode. By applying a solid high-ionic conductor having a 3D porous structure, an ion conduction path is secured in the lithium electrode using the solid high-ionic conductor instead of a conventional liquid electrolyte, electrical-chemical reactivity in charging and discharging are further improved, and shelf life and high rate capability are enhanced.

Lithium electrode for lithium metal battery and method of manufacturing the lithium electrode

Disclosed is a method for recovering carbon dioxide from exhaust gas, more particularly, a method for recovering carbon dioxide from exhaust gas for saving the cost for recovery of carbon dioxide by decreasing energy required for recycling a carbon dioxide absorbent solution. In particular, a circulating solvent, whose heat of vaporization and/or sensible heat is lower than that of a solvent of an absorbent solution introduced to a recycling tower, is supplied to the lower portion of the recycling tower and mixed with the heated absorbent solution. As a result, the pressure inside the recycling tower is maintained so that carbon dioxide released from the absorbent solution is discharged to a storage tank/drum.

Carbon dioxide recovery system and method of exhaust gas

Provided is an apparatus for regenerating a carbon dioxide absorption solution that regenerates an absorption solution for absorbing carbon dioxide contained in a combustion exhaust gas emitted during a combustion process of a vehicle, thereby reducing energy costs while simplifying its configuration. The apparatus includes a first storage tank for storing an absorption solution that contains absorbed CO; a regeneration column for generating an absorption solution regenerated by heating the absorption solution to free/release CO; a separation drum for separating the COfreed/released during the regeneration; a multi-stepped compressor for compressing the separated CO; a heat exchanger for performing a heat exchange between the absorption solution discharged from the first storage tank and the COcompressed in the multi-stepped compressor; a temperature sensor for detecting temperature of the absorption solution after the heat exchange in the heat exchanger; and a flow meter for controlling a flow rate of the absorption solution passing through the heat exchanger according to the temperature of the absorption solution detected by the temperature sensor.

Growing community of inventors

Bucheon-si, South Korea

Yoon Ji Lee