Lg Chem, Ltd

Lg Energy Solution, Ltd.

Gi Su Park

Seong Ho Lee

Yu Mi Kim

Minchul Jang

Byoungkuk Son

Jong Mo Jung

Doo Kyung Yang

Da Young Sung

Jaegil Lee

Min Seo Kim

Kyungsik Hong

Byounghyo Jung

Hyunsoo Lee

Minsun Song

Min Su Kim

Joong Jin Han

Hyun Geun Jo

Youngjea Kim

Seok Jin Kim

Jong Hyun Chae

Bong Soo Kim

Dong Wook Lee

Hyungsam Choi

Dong Keun Kwon

Chang Min Han

Suhwan Kim

Seungpyo Jeong

Eun Kyung Cho

Tae Yoon Jung

An apparatus and a method for manufacturing a lithium electrode may include a cutting stage, a laser irradiation portion and a lithium metal film supply portion, in which a plurality of adsorption holes and a plurality of unit electrode pattern grooves are formed on the upper surface of the cutting stage.

Lithium electrode manufacturing apparatus and manufacturing method

A positive electrode for a lithium-sulfur secondary battery includes a positive electrode active material layer having an intaglio pattern formed therein. A method for manufacturing the same, and a lithium-sulfur secondary battery including the same are also provided. The positive electrode active material layer has a porosity of 50 to 65%. The intaglio pattern has a width of 1 to 100 μm and a depth of 30 to 99% based on the thickness of the positive electrode active material layer. The volumetric ratio of the positive electrode active material layer and the intaglio pattern is 4:1 to 40:1. When the positive electrode is applied to a lithium-sulfur secondary battery, the energy density per unit volume can be remarkably improved.

Positive electrode for lithium-sulfur secondary battery having pattern, manufacturing method therefor, and lithium-sulfur secondary battery including same

The present invention relates to an apparatus and a method for manufacturing a lithium electrode, comprising a cutting stage, a laser irradiation portion and a lithium metal film supply portion, in which a plurality of adsorption holes and a plurality of unit electrode pattern grooves are formed on the upper surface of the cutting stage.

A method for enhancing a lifetime of a lithium secondary battery including manufacturing a battery by injecting an electrolyte liquid to an electrode assembly-embedded battery; and charging and discharging the manufactured battery; and additionally injecting an electrolyte liquid earlier than half a cycle point with respect to the number of charge and discharge cycles reaching discharge capacity of 80% compared to initial capacity is provided.

Method for improving lifespan of lithium secondary battery

A binder for a lithium-sulfur battery, and a positive electrode and a lithium-sulfur battery including the same, and in particular, to a binder for a lithium-sulfur battery including lithium polyacrylate and polyvinyl alcohol. By including two types of specific polymers, the binder for a lithium-sulfur battery is capable of enhancing electrochemical properties and stability of a positive electrode, and thereby enhancing capacity and lifetime properties of a lithium-sulfur battery.

Binder for lithium-sulfur battery, positive electrode comprising same, and lithium-sulfur battery

Disclosed herein are a secondary battery transfer apparatus for transferring a secondary battery in a secondary battery manufacturing process and a method for detecting a loading defect of a secondary battery in a carrier receiving the secondary battery. The secondary battery transfer apparatus includes a carrier having a receipt space to receive a secondary battery, a transfer unit transferring the carrier, a loading detection sensor sensing the secondary battery when the secondary battery inserted into the carrier reaches a designated height, and a controller receiving a result of sensing of the loading detection sensor and controlling operation of the transfer unit. The secondary battery transfer apparatus and the detection method detect whether or not a case of the secondary battery is damaged due to friction with the carrier and thus recognize a product defect in advance.

Secondary battery transfer device and method for detecting receipt failure of secondary battery

The present application relates to a cathode for a lithium-sulfur battery and a method of preparing the same. A cathode for a lithium-sulfur battery according to an exemplary embodiment of the present application includes: a cathode active part including a sulfur-carbon composite; and a cathode coating layer provided on at least a portion of a surface of the cathode active part and including an inorganic oxide.

Cathode for lithium-sulfur battery and preparation method therefor

The present disclosure relates to a positive electrode for a lithium-air battery and a method for preparing the same, and the positive electrode for a lithium-air battery according to the present disclosure has advantages in that it improves electrical conductivity and mechanical strength of an electrode, and increases loading amounts.

Positive electrode for lithium-air battery and method for preparing the same

The present invention provides a battery management apparatus and method which connect a plurality of batteries having different energy densities to each other and control power supplied through the plurality of batteries to control the driving of the driving body.

Battery management apparatus and method

The present application relates to a separation membrane and a lithium-sulfur battery including the same, and the separation membrane according to the present application prevents elution of lithium polysulfide in a cathode and suppresses growth of a lithium dendrite generated in an anode, and thus has an effect that a life-span and safety of the battery are improved.

Separation membrane and lithium-sulfur battery comprising same

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Daejeon, South Korea

Gi Su Park