Lg Chem, Ltd

Lg Energy Solution, Ltd.

Hye Ri Jung

Jung Pil Lee

Eun Bee Kim

Hyea Eun Han

Ji Young Kim

Hoe Jin Hah

Jong Hwa Lee

Sung Ju Cho

Lak Young Choi

Hye Yeong Sim

Disclosed are a method of manufacturing a positive electrode mixture for all-solid-state batteries and a positive electrode mixture for all-solid-state batteries manufactured using the same, and more particularly a method of manufacturing a positive electrode mixture for all-solid-state batteries including mixing a positive electrode active material and a solid electrolyte with each other in a dry state, mixing the mixture with an additional solid electrolyte in a wet state, and adding a conductive agent and performing mixing in a wet state at the time of manufacturing the positive electrode mixture for all-solid-state batteries and a positive electrode mixture for all-solid-state batteries manufactured using the same.

Method of manufacturing positive electrode mixture for all-solid-state batteries and positive electrode mixture for all-solid-state batteries manufactured using the same

A method of manufacturing a positive electrode for sulfide-based all-solid-state batteries, including: preparing a slurry, coating the slurry on a current collector, and then drying. The slurry is prepared by a method including the steps of a) mixing a positive electrode active material and a solid electrolyte in a dry state; b) adding a conducting agent to the mixture of step a) and mixing in a dry state; and c) adding a binder and a solvent to the mixture of step b) and mixing in a wet state.

Method of manufacturing positive electrode for all-solid-state batteries and positive electrode for all-solid-state batteries manufactured using the same

A method of manufacturing a pouch-shaped battery cell includes injecting an electrolytic solution into a pouch-shaped battery case, in which an electrode assembly is received, placing the pouch-shaped battery cell in a jig configured to fix and press the pouch-shaped battery cell and charging and discharging the pouch-shaped battery cell in the state in which pressure is applied to the jig (an activation step).

Method of manufacturing pouch-shaped battery cell including fixing process using jig

A method of manufacturing a pouch-shaped battery cell including a silicon-based negative electrode active material includes injecting an electrolytic solution into a pouch-shaped battery case, in which an electrode assembly is mounted, charging and discharging the pouch-shaped battery cell having the electrolytic solution injected thereinto (a primary formation step), placing the pouch-shaped battery cell in a jig configured to fix and press the pouch-shaped battery cell, and charging and discharging the pouch-shaped battery cell while pressure is applied to the pouch-shaped battery cell by the jig (a jig grading step).

Method of manufacturing pouch-shaped battery cell comprising jig grading

Provided are a negative electrode including a current collector, a first active material layer including first active material particles and disposed on the current collector, and a first pattern and a second pattern alternately disposed separately from each other on the first active material layer, wherein the first pattern includes first pattern active material particles, the second pattern includes second pattern active material particles, a thickness of the first pattern is greater than a thickness of the second pattern, and a volume expansion rate of the second pattern is greater than a volume expansion rate of the first pattern, and a secondary battery including the negative electrode.

Negative electrode and secondary battery including the same

The present invention relates to a method of preparing a lithium secondary battery which may improve productivity and performance of the lithium secondary battery by visually measuring an actual electrolyte solution impregnation time for an electrode active material, setting an estimated impregnation time of the electrolyte solution for a battery based on a measured result, and reflecting the estimated impregnation time in a production process.

Method of preparing lithium secondary battery

The present invention relates to an electrode and a method for manufacturing the electrode, which are for maintaining the uniformity of the thickness of an electrode coating layer in the electrode. In addition, the present invention is characterized by including a preparation step for preparing an electrode foil, an attachment step for attaching an adhesive member onto a portion of the electrode foil, a coated part formation step for coating an active material onto the electrode foil, and an uncoated part formation step for forming an uncoated part on the electrode foil by removing the adhesive member along with the active material coated onto the adhesive member.

Electrode and method for manufacturing same

The present invention relates to a positive electrode and a secondary battery including the same, and particularly, to a positive electrode which includes a current collector; a first active material layer including first active material particles and disposed on the current collector; and a first pattern and a second pattern alternately disposed separately from each other on the first active material layer, wherein the first pattern includes first pattern active material particles, the second pattern includes second pattern active material particles, the first pattern has a thickness greater than that of the second pattern, and the second pattern has a volume expansion rate greater than that of the first pattern, and a secondary battery including the same.

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Daejeon, South Korea

Hye Ri Jung