Hyundai Motor Company

Kia Motors Corporation

Seoul National University

Industry-University Cooperation Foundation Hanyang University

Sam Ick Son

Jun Ki Rhee

Ho Taek Lee

Hee Yeon Ryu

Yun Seok Kim

Dong Hui Kim

Dae Gun Jin

Kyoung Han Ryu

Jae Seung Lee

Jung Hoon Kim

Dong Wook Shin

Ju Young Sung

Jong Chan Song

Ki Suk Kang

Min Yong Eom

Young Min Ko

Hyeok Jun Park

Young Joon Bae

Sung Kwan Park

The present invention relates to a cathode material for a lithium-air battery and a method of manufacturing a cathode using the same. The cathode material of the present invention includes a solvent component and thus includes an electrolyte in a small amount compared to a conventional cathode material, thereby reducing the weight of a cathode manufactured using the cathode material, ultimately increasing the energy density of a lithium-air battery including the cathode.

Cathode material for lithium-air battery and method of manufacturing cathode using same

Disclosed are a positive electrode for lithium air batteries with excellent stability, a method of manufacturing the same, and a lithium air battery including the same, and a lithium air battery with improved stability by including the positive electrode. The positive electrode may include a conductive material and an ionic liquid such that the process of manufacturing the lithium air battery may be simplified, and the stability of the lithium air battery may be further improved as the result of inhibition of side reactions.

Positive electrode for lithium air batteries with excellent stability, method of manufacturing the same, and lithium air battery including the same

Disclosed are an electrolyte membrane for a lithium air battery having good durability, a method of manufacturing the same, and a lithium air battery including the same. The electrolyte membrane for a lithium air battery may include a reinforced membrane and an electrolyte solution and is thus nonvolatile and capable of ensuring sufficient physical strength.

Electrolyte membrane for lithium air battery having good durability, method of manufacturing same and lithium air battery including same

Provided herein is an anode for a lithium air battery with a long lifetime and high lithium ion conductivity and a method for preparing thereof. The anode includes a lithium metal and a protective layer disposed on one surface of the lithium metal, in which the protective layer includes an inorganic material-based solid electrolyte powder dispersed in a polymer matrix.

Anode for lithium air battery and preparation method thereof

A sulfide-based crystallized glass for an all-solid secondary battery has a sulfide that includes LiS and PS, wherein the sulfide-based crystallized glass consists of 1 to 5% by mole of LiBO. A method for manufacturing the sulfide-based crystallized glass comprises steps of mixing (1) 75 to 80% by mole of LiS and 20 to 25% by mole of PS, and then mixing (2) 95 to 99% by mole of obtained mixture at (1) and 1 to 5% by mole of LiBOwith a mechanical milling method, and subjecting the mixture thus obtained to a heat-treatment process.

Sulfide-based crystallized glass for all-solid secondary battery and a method for manufacturing the same

Disclosed is a cathode current collector for an electrical energy storage device and a method for manufacturing the same, which improves adhesion between a current collector and an electrode material and provide a high reaction surface area, thereby improving the performance of the electrical energy storage. In particular, a first alumina film is formed on the surface of an aluminum foil using an anodic oxidation process. Next, the first alumina film formed on a surface of the aluminum foil is removed through etching and a second alumina film is formed on the surface of the aluminum foil, from which the first alumina film is removed, using the anodic oxidation process again. Subsequently, a carbon layer is coated on a surface of the aluminum foil on which the second alumina film is formed.

Cathode current collector for electrical energy storage device and method for manufacturing the same

The present invention provides a lithium-air hybrid battery and a method for manufacturing the same, which has a structure in which a liquid electrolyte electrode and a solid electrolyte electrode are stacked on both sides of an ion conductive glass ceramic. That is, disclosed is a lithium-air hybrid battery and a method for manufacturing the same, which has a structure in which a lithium metal negative electrode includes a liquid electrolyte and a porous air positive electrode comprising a carbon, a catalyst, a binder and a solid electrolyte are separately stacked on both sides of an impermeable ion conductive glass ceramic, and the liquid electrolyte is present only in the lithium metal negative electrode.

Li-air hybrid battery and method for manufacturing the same

Disclosed is a lithium ion-sulfur battery including a lithium metal used as a supply source of lithium ions, a sulfur electrode used as a positive electrode and an intercalation electrode. The intercalation electrode is (i) interposed between the lithium metal and the sulfur electrode, (ii) has a structure capable of causing an intercalation reaction, and (iii) is used as a negative electrode after the lithium ions are intercalated from the lithium metal to be charged and discharged together with the sulfur electrode. The lithium metal is used only to intercalate the lithium ions into the intercalation electrode during initial use, and the intercalation electrode, into which the lithium ions are intercalated, is used as a negative electrode during actual use. Therefore, it is possible to prevent the formation of dendrite caused when the lithium ions are used as the negative electrode, and thus the charge/discharge durability is improved.

Lithium ion-sulfur battery and electrode for the same

The present invention provides a lithium-sulfur battery with a polysulfide confining layer, which can prevent loss of polysulfide formed on the surface of a positive electrode during charge and discharge reactions, thus improving the durability of the battery. For this purpose, the present invention provides a lithium-sulfur battery including a hydrophilic polysulfide confining layer interposed between a positive electrode and a separator to prevent a polysulfide-based material from being lost from the surface of the positive electrode during discharge.

Growing community of inventors

Gyeonggi-do, South Korea

Sam Ick Son