Hyundai Motor Company

Kia Corporation

Kia Motors Corporation

Hannah Song

SangWook Han

Kyeong Wi Park

Hoon Hee Han

Jae Young Choi

Sung Hoon Jeong

Gwangil Du

Mingyun Jo

Kyeongkeun Kim

Daehyeon Joung

A method of manufacturing an all solid state battery is disclosed. In one embodiment, the method includes forming a negative electrode including a negative active material layer and a negative buffer layer, forming a sulfide-based solid electrolyte layer on a first surface of the negative electrode, forming a positive electrode including a positive active material layer and a positive buffer layer, and bonding the positive electrode to a second surface of the solid electrolyte layer.

Method of manufacturing an all solid state battery

A system for fabricating an electrode film for a secondary battery includes a powder film fabrication unit configured to form mixture powder with active material powder, binder powder, and conductive material powder, and fabricating a powder film roll by fibrillating the mixture powder, a base material film fabrication unit configured to form a mixture solution with carbon-based powder, the binder powder, and organic solvent, and form a base material film roll by patterning the mixture solution on a base material film, and an electrode film fabrication unit configured to dispose the base material film roll between two powder film rolls, and form an electrode film roll by overlapping and bonding the powder film and the base material film.

System and method for fabricating electrode film for secondary battery

Provided are a system for manufacturing dispersion liquid of carbon nanotubes and a method of manufacturing a dispersion liquid of carbon nanotubes using the same. The system includes; a mixing device supplied with solvent and carbon nanotubes, and storing a admixture of the solvent and the carbon nanotubes; a first dispersion device connected to the mixing device, performing a primary dispersion of the carbon nanotubes by an operation of a rotor and a stator, and then performing a secondary dispersion to form bent portions in the carbon nanotubes while discharging the carbon nanotubes through penetration holes of the stator; and a second dispersion device performing a tertiary dispersion of the carbon nanotubes to selectively cut the bent portions of the carbon nanotubes by irradiating a laser when the secondarily dispersed admixture recirculates to the mixing device.

System and method for manufacturing dispersion liquid of carbon nanotube

A method for controlling a transmission of a vehicle includes: determining whether a controller receives an acceleration pedal off signal corresponding to a lift foot up (LFU) shift request signal from an acceleration pedal sensor; determining whether an output signal value of a brake pedal sensor detecting a position value of a brake pedal is less than a brake reference value when the acceleration pedal off signal is received; determining whether a gear shifting progressing rate of the transmission performing a LFU shift in response to the LFU shift request signal is less than a progressing rate reference value when an output signal value of the brake pedal sensor is equal to or greater than the brake reference value; and controlling the transmission to hold the LFU shift when the gear shifting progressing rate of the transmission is less than the progressing rate reference value.

Method and device for controlling a transmission of a vehicle

An embodiment all solid state battery includes a sulfide-based solid electrolyte layer, a negative electrode comprising a negative active material layer stacked on a first surface of the solid electrolyte layer and a negative buffer layer stacked on a first surface of the negative active material layer, and a positive electrode comprising a positive active material layer stacked on a second surface of the solid electrolyte layer and a positive buffer layer stacked on a second surface of the positive active material layer.

Growing community of inventors

Ansan-si, South Korea

Hannah Song