Lg Energy Solution, Ltd.

Jaegil Lee

Kyungsik Hong

Suenghoon Han

Jong Mo Jung

Gi Su Park

Yeyoung Ha

Minsun Song

Unho Jung

Doo Kyung Yang

Eunkyung Cho

Yu Mi Kim

Changhun Park

Minsu Kim

Yun Kyoung Kim

Eui Tae Kim

Dong Hyeop Han

Yunjung Kim

Myeongjun Song

Hyunsoo Lee

Eunji Jang

Seonghyo Park

The present disclosure relates to an electrolyte solution for a lithium-sulfur secondary battery and a lithium-sulfur secondary battery containing the same, and more particularly, to an electrolyte solution for a lithium-sulfur secondary battery comprising a lithium salt, a non-aqueous solvent and an additive, wherein the non-aqueous solvent comprises a linear ether and a cyclic ether, and the additive comprises a pyridine-based compound substituted with one or more fluorine.

Electrolyte solution for lithium-sulfur secondary battery and lithium-sulfur secondary battery comprising same

An electrolyte solution for a lithium secondary battery, including a first solvent comprising a heterocyclic compound having at least one double bond, and any one of an oxygen atom and a sulfur atom; a second solvent including at least one of an ether-containing compound, an ester-containing compound, an amide-containing compound, and a carbonate-containing compound; a lithium salt; lanthanum nitrate; and an additive including lithium nitrate.

Electrolyte for lithium secondary battery, and lithium secondary battery comprising same

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

Disclosed is an electrolyte for a lithium-sulfur battery and a lithium-sulfur battery including the same, more specifically an electrolyte for a lithium-sulfur battery including a lithium salt, a non-aqueous organic solvent, and an additive, wherein the additive includes a sulfide compound. The electrolyte for the lithium-sulfur battery improves the efficiency and stability of the negative electrode, thereby improving the capacity and lifetime characteristics of the lithium-sulfur battery.

Lithium-sulfur battery electrolyte and lithium-sulfur battery including same

Discussed is an electrolyte solution for a lithium-sulfur battery including a lithium salt, an organic solvent and an additive, and a lithium-sulfur battery including the same, wherein the additive includes a heterocyclic compound containing at least one double bond, and a heterocycle of the heterocyclic compound comprises an oxygen atom or a sulfur atom.

Electrolyte for lithium-sulfur battery and lithium-sulfur battery comprising same

A bipolar lithium secondary battery having a bipolar unit that includes a current collector with positive and negative electrodes formed on opposite sides thereof. The bipolar lithium secondary battery may prevent self-discharging and the generation of bypass currents by separating the electrolyte solutions adjacent to the electrodes having different polarities by a polymer film attached to the edge of the current collector, and by preventing the movement of the separated electrolyte solutions.

Bipolar lithium secondary battery

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 positive electrode slurry composition, a positive electrode manufactured using the same, and a battery including the positive electrode. The positive electrode slurry composition includes a positive electrode active material, a binder, an alcohol, and water, wherein a content of the alcohol is in a range of 0.1 to 10% by weight, based on a total weight of the composition. The slurry composition for manufacturing a positive electrode has effects of highly improving the dispersibility of the positive electrode active material and the conductive material, decreasing the surface roughness of an electrode, and remarkably reducing a curling phenomenon in the electrode. Also, the slurry composition has an economic advantage in that a dispersing agent is not used or an amount of the dispersing agent used can be remarkably reduced.

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Daejeon, South Korea

Jaegil Lee