Hyundai Motor Company

Kia Motors Corporation

Eun Ji Kwon

Yong Jun Jang

Dae Gun Jin

Ju Young Sung

Ji Na Kim

Sang Jin Park

Ho Taek Lee

Yong Kim

Hee Yeon Ryu

Yoon Ji Lee

Hee Jin Woo

Na Ry Shin

Won Keun Kim

Jee Youn Hwang

Gwang Seok Oh

Ji Hoon Jang

Samuel Seo

Disclose are a cathode of an all-solid lithium battery, and a secondary battery system using the same. The cathode includes a lithium composite, and a method of manufacturing the lithium composite comprises: dispersing a solid electrolyte to be uniformly distributed in the pores of a mesoporous conductor to provide a solid electrolyte composite, and coating the solid electrolyte composite on the surface of a lithium compound including nonmetallic solids such as S, Se, and Te.

Cathode of all-solid lithium battery and secondary battery using the same

The present disclosure relates to garnet powder, a manufacturing method thereof, a solid electrolyte sheet using a hot press, and a manufacturing method thereof. In particular, the present disclosure provides a method for manufacturing LiLaZrO(LLZ) garnet powder including preparing a mixture by first dry mixing LiCO, LaO, ZrO, and AlO. The mixture is first calcinated for 5 to 7 hours in a temperature range of 800 to 1000&#xb0; C. The calcinated mixture is ground to a powder with an average particle size of 1 to 4 &#x3bc;m through dry grinding. A cubic-phased LLZ garnet powder is prepared by second calcinating the ground mixture for 10 to 30 hours in a temperature range of 1100 to 1300&#xb0; C.

Garnet powder, manufacturing method thereof, solid electrolyte sheet using hot press and manufacturing method thereof

The present disclosure relates to a positive electrode for lithium air batteries, a method of manufacturing the positive electrode, and a lithium air battery including the positive electrode, and more particularly to a positive electrode for lithium air batteries, wherein the positive electrode is manufactured through a dry process instead of a conventional wet process and a mixture of a positive electrode active material and a binder is ball-milled under specific conditions, thereby reducing or preventing a swelling phenomenon due to a solvent and increasing the force of coupling between the positive electrode active material and the binder, whereby it is possible to manufacture a high-density electrode and to improve the durability of the electrode, and wherein the lifespan of a lithium air battery is increased when the positive electrode is applied to the battery.

Positive electrode for lithium air batteries, method of manufacturing the positive electrode, and lithium air battery including the positive electrode

Disclosed are a garnet-type solid electrolyte and a method for preparing the same. The garnet-based solid electrolyte of the present invention is prepared by adding AlOto a precursor containing hydroxide, thereby enhancing sintered density and ionic conductivity while having a pure cubic phase crystal structure without including impurities.

Garnet-type solid electrolyte and method for preparing the same

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Gyeonggi-do, South Korea

Eun Ji Kwon