Lg Energy Solution, Ltd.

Lg Chem, Ltd

Korea Advanced Institute of Science and Technology

Suk Il Youn

Byoungkuk Son

Minchul Jang

Junghun Choi

Eunkyung Park

Bora Jung

Woongchul Choi

Minehul Jang

Se Ho Park

Da Young Sung

Yeilin Ham

Yonghee Kang

Min Chul Jang

Changhun Park

Yo Han Kwon

Jang Wook Choi

Doyeon Kim

Yeon Suk Hong

Donghyeon Kang

Jung Hun Choi

Byoung Hyo Jung

Sung Hyeon Park

The present technology relates to a method of manufacturing a negative electrode, and the method includes: manufacturing a negative electrode having a negative electrode active material layer formed thereon by coating a negative electrode slurry including a negative electrode active material at least on one surface of a current collector; pre-lithiating the negative electrode; and forming an inorganic coating layer on a surface of the negative electrode active material layer by aging the pre-lithiated negative electrode under an COatmosphere.

Method of manufacturing negative electrode having inorganic coating layer formed thereon

The present invention relates to a porous separator comprising a porous layer containing a plurality of plate-type inorganic particles and a first binder polymer positioned on part or all of the surface of the plate-type inorganic particles to connect and fix between the plate-type inorganic particles; and a metal layer formed on any one surface of the porous layer, and a lithium secondary battery comprising the same.

Porous separator and lithium secondary battery comprising same

A method for manufacturing an anode for a lithium secondary battery comprises: preparing a lithium transfer film by forming a lithium layer on a protection layer of a transfer film, wherein the transfer film includes a substrate and the protective layer; and preparing a negative electrode having a negative electrode active material layer formed on a current collector, and transferring the lithium transfer film by contacting and rolling the lithium transfer film onto the surface of the negative electrode material layer such that the lithium layer faces the negative electrode active material layer. The protective layer contains an acrylic resin, and the lithium layer and the protective layer are transferred onto the negative electrode active material layer.

Method for manufacturing anode for lithium secondary battery

A lithium secondary battery including a positive electrode, a negative electrode comprising a negative electrode current collector, and an electrolyte disposed between the positive electrode and the negative electrode; and a lithium metal layer on the negative electrode current collector in the negative electrode. The electrolyte includes a first electrolyte layer and a second electrolyte disposed on the first electrolyte layer, wherein the first electrolyte layer faces the negative electrode, and the second electrolyte layer faces the positive electrode. The first electrolyte layer has higher ion conductivity than the second electrolyte layer, and wherein the lithium metal layer is formed by migration of lithium ions from the positive electrode after charging.

Lithium secondary battery

A lithium electrode and a lithium secondary battery including the same, which includes a first protective layer and a second protective layer sequentially formed on at least one surface of lithium metal layer. The second protective layer contains a cross-linked ion conductive electrolyte in the interior and on the surface of the electrically conductive matrix, and thus the first protective layer has higher ion conductivity than the second protective layer, thereby preventing electrons from being concentrated into lithium dendrites formed from the lithium metal to inhibit the growth of lithium dendrites, and at the same time, physically inhibiting the growth of lithium dendrites by the second protective layer.

Lithium electrode and lithium secondary battery comprising same

A lithium electrode having an acrylic polymer layer formed on a lithium metal layer wherein the acrylic polymer layer functions as a protective layer for the lithium metal layer, and functions as a release layer in the manufacturing process of the lithium electrode. The acrylic polymer layer shows an effect that does not act as a resistance in the lithium secondary battery comprising the lithium electrode during operation of the battery.

A lithium electrode includes a protective layer containing an ion conductive electrolyte in the interior and on the surface of the electrically conductive matrix. The protective layer may make the electrical conductivity of the surface of the lithium electrode uniform, imparts strength during the growth of lithium dendrites, physically prevents the growth of lithium dendrites, and suppresses the generation of dead lithium.

A lithium electrode and a lithium secondary battery including the same. By using an olefin-based ion conducting polymer as a protective layer-forming material of a lithium electrode having a protective layer formed on a lithium metal layer, the lithium electrode may be protected from moisture or open air during a lithium electrode preparation process, lithium dendrite formation and growth from the lithium electrode may be prevented, and performance of a battery using the lithium electrode may be enhanced.

Lithium electrode, method for manufacturing same, and lithium secondary battery comprising same

A method for manufacturing an electrode for an all solid battery including the steps of coating a current collector with a slurry including an active material, a conductive material, and a polyimide-based binder; and melting a solid electrolyte having a melting temperature of 50&#xb0; C. to 500&#xb0; C. and applying it onto the coating layer and an electrode manufactured therefrom.

Electrode for solid-state battery and manufacturing method therefor

A method of preparing a structure, more particularly, a method of preparing a structure capable of ensuring a space for carrying an electrode active material by a simple method which includes an electrospinning process using a double nozzle electrospinning device and a heat treatment process.

Method for manufacturing structure

A method for preparing a lithium electrode, and in particular, a lithium electrode having a thin and uniform thickness may be prepared by forming a protective layer capable of protecting lithium metal on a substrate first, depositing lithium metal on the protective layer, and then transferring the deposited lithium metal layer on a current collector, for instance a Cu current collector, when preparing a lithium electrode, and a lithium secondary battery using the lithium electrode prepared as above may have enhanced energy density.

Method for manufacturing lithium electrode

A lithium electrode and a lithium secondary battery including the same. More particularly, in the preparation of the lithium electrode, a protective layer for protecting the lithium metal is formed on the substrate, lithium metal may be deposited on the protective layer and then transferred to at least one side of the current collector to form a lithium electrode having a thin and uniform thickness, and the energy density of the lithium secondary battery using the lithium electrode thus manufactured may be improved.

A porous separator including a porous layer including plate-type inorganic particles, and a first binder polymer located on a part of or all surfaces of the plate-type inorganic particles, wherein the first binder polymer connects and fixes the plate-type inorganic particles, and an electrochemical device including the same.

Porous separator including porous layer including plate-type inorganic particles and porous coating layer including spherical inorganic particles and electrochemical device including the same

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Daejeon, South Korea

Suk Il Youn