Lg Chem, Ltd

Lg Energy Solution, Ltd.

Jong Mo Jung

Young Geun Choi

Seung Jae Yoon

Jonghyun Chae

Geun Chang Chung

Yourim Yoon

Chul Haeng Lee

Young Cheol Choi

Gi Su Park

Jaegil Lee

Kyungsik Hong

Minsun Song

Doo Kyung Yang

Jae Hyun Lee

Soon Ho Ahn

Seong Ho Lee

Seung Tae Hong

Jong Hyun Chae

Yu Mi Kim

Jeong Min Kim

You Rim Yoon

Hyo Shik Kil

Byounghyo Jung

Joo Young Choi

Hyunsoo Lee

Jae Kyung Kim

Sung Hyup Lee

Hyun Kyung Do

Jong Hoa Ok

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

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 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 is a lithium secondary battery including: (i) a cathode active material including a lithium metal phosphate according to Formula 1 below; (ii) an anode active material including amorphous carbon; and (iii) an electrolyte for lithium secondary batteries including a lithium salt and an ether based solvent, wherein propylene carbonate (PC) is included in an amount of 1 wt % to 60 wt % in the electrolyte for lithium secondary batteries, based on the total weight of the electrolyte,LiM(PO)X&#x2003;&#x2003;(1)

Lithium secondary battery

Disclosed are an electrolyte for lithium secondary batteries including 10 wt % to 90 wt % of an ester based solvent and 10 wt % to 90 wt % of a carbonate based solvent with respect to the total weight of a non-aqueous solvent, and a lithium secondary battery including the same.

Electrolyte for lithium secondary batteries and lithium secondary battery including the same

Disclosed is a lithium secondary battery including (i) a cathode active material including a lithium metal phosphate according to Formula 1 below; and (ii) an anode active material including amorphous carbon,LiM(PO)X&#x2003;&#x2003;(1)

Disclosed are an electrolyte for lithium secondary batteries including a lithium salt and a non-aqueous solvent, in which the non-aqueous solvent includes an ether based solvent and a glyme based solvent and a ratio of the ether based solvent to the glyme based solvent is 20:80 to 60:40 based on the total volume of the non-aqueous solvent, and a secondary battery including the same.

Disclosed is a lithium secondary battery including (i) a cathode active material including a lithium metal phosphate according to Formula 1 below, (ii) an anode active material including amorphous carbon, and (iii) an electrolyte for lithium secondary batteries including a lithium salt and an ether-based solvent,LiM(PO)X&#x2003;&#x2003;(1)

Disclosed is an electrolyte for lithium secondary batteries including a lithium salt and a non-aqueous solvent, in which a silane based material is included in an amount of 0.1 to 20 wt % based on the total weight of the electrolyte, and a lithium secondary battery including the same.

Provided are a method of preparing an electrode assembly, in which both sides of a single current collector are coated to form an anode and a cathode, and the current collector is then bent into a vertical sectional zigzag shape and integrated in a state of disposing a separator at interfaces between facing electrode patterns, an electrode assembly prepared by the above method, and a secondary battery comprising the electrode assembly.

Method of preparing electrode assembly and electrode assembly prepared using the method

Disclosed herein is an electrolyte for lithium secondary batteries comprising: a chelating agent, which forms complexes with transition metal ions in the battery, and at the same time does not react and coordinate with lithium ions; a non-aqueous solvent; and an electrolyte salt, as well as a lithium secondary battery comprising the electrolyte. The chelating agent, which is contained in the electrolyte for lithium secondary batteries, can suppress a side reaction in which transition metal ions are reduced and deposited as transition metals on the anode. Also, the chelating agent can suppress internal short-circuits in the battery and the resulting voltage drop of the battery and a reduction in the safety and performance of the battery, which can occur when transition metals are deposited on the anode.

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Daejeon, South Korea

Jong Mo Jung