Hyundai Motor Company

Kia Corporation

Seoul National University

Kia Motors Corporation

Korea Institute of Science and Technology

Industry-University Cooperation Foundation Hanyang University

Postech Academy-industry Foundation

Ulsan National Institute of Science and Technology

Inha-industry Partnership Institute

Kyoung Han Ryu

Won Keun Kim

Ho Taek Lee

Dong Hui Kim

Yun Seok Kim

Byung Ju Lee

Jun Ki Rhee

Sam Ick Son

Ki Suk Kang

Hee Dae Lim

Dong Won Kim

Jae Hong Kim

Tae Young Kim

Jin Woo Lee

Jae Hyuk Lee

Jin Soo Kim

Jae Wook Shin

Dae Gun Jin

Hun Gi Jung

Young Suk Cho

Gwang Seok Oh

Jong Chan Song

Jin Yong Shim

Hyun Sik Woo

Ji Hee Park

Seok Ju Kang

Young Min Ko

Min Ah Lee

Sung Hee Shin

Kyung Eun Baek

Seung Ho Yu

Seong Min Ha

Joo Young Jeong

Yongsug Tak

Sung-Hyeon Baeck

Jinsub Choi

Min Gi Jeong

A method of manufacturing a composite anode for a lithium ion battery and a composite anode for a lithium ion battery manufactured thereby. According to the method provide herein, since a metal catalyst precursor is reduced using Joule heating to obtain a carbon-metal catalyst composite layer, composite anode for a lithium ion battery having a large area in a short period of time can be provided, which is excellent in terms of economic feasibility. Further, since it is possible to manufacture a composite anode for a lithium ion battery with the improved lithium electrodeposition density and reversibility of lithium ions, a composite anode for a lithium ion battery having high capacity and improved life stability can be obtained.

Method of manufacturing composite anode for lithium ion battery

Disclosed are a lithium-air battery including a redox mediator in an electrolyte and having a protective layer on an anode, and a method of manufacturing the same. The lithium-air battery includes an anode including a lithium metal, a protective layer positioned on the anode and including lithium fluoride (LiF), a cathode, and an electrolyte positioned between the protective layer and the cathode. Particularly, the electrolyte includes a halogen ion (X) which is a redox mediator.

Lithium-air battery including a redox mediator and protective layer, and method of manufacturing the same

Disclosed herein are a lithium air battery having a multi-layered electrolyte membrane and a method of manufacturing the same. The lithium air battery includes a first electrolyte membrane capable of obtaining high ionic conductivity on a lithium negative electrode surface while minimizing the content of polymer and positioning a second electrolyte membrane with high resistance to oxygen radicals on the air electrode. Accordingly, the multi-layered electrolyte membrane can improve an electrolyte filling characteristic and a conductive characteristic of lithium ions, suppress oxygen radicals from being carried from an air electrode, and suppress a growth of lithium dendrite to largely improve a battery lifespan.

Lithium air battery having multi-layered electrolyte membrane and manufacturing method thereof

A lithium air battery may include an electrolyte with a donor number of 10 to 40; and a quinone-based liquid catalyst which added to the electrolyte to induce a discharge in the solution.

Lithium air battery including quinone-based liquid catalyst inducing discharge in solution

A soluble catalyst for a lithium-air battery is provided. The soluble catalyst including a redox mediator (RM) has an ionization energy of about 5.5 to 7.5 eV under vacuum or an oxidation potential of 3.0 to 4.0 V and is well dissolved in an electrolyte without reacting with the electrolyte. In addition, the soluble catalyst has a HOMO level in an original state (RM), which is less than a formation energy of lithium peroxide (LiO) but maximally close to the formation energy, and has a HOMO level in an oxidized state (RM), which is greater than a HOMO level of the electrolyte.

Soluble catalyst for lithium-air battery

Disclosed is a nanotubular intermetallic compound catalyst for a positive electrode of a lithium air battery and a method of preparing the same. In particular, a porous nanotubular intermetallic compound is simply prepared using electrospinning in which a dual nozzle is used, and, by using the same as a catalyst, a lithium air battery having enhanced discharge capacity, charge/discharge efficiency and lifespan is provided.

Nanotubular intermetallic compound catalyst for positive electrode of lithium air battery and method of preparing the same

An all solid electrode structure having a solid electrolyte concentration gradient is provided and a method of improving an output performance is provided with improved ion diffusion and obtaining a high capacity battery, by disposing an anode or cathode electrode having a substantially continuous concentration gradient to have a greater solid electrolyte ratio as being closer to a solid electrolyte interface and have a greater active material ratio as being close to a current collector interface. The active material/solid electrolyte ratio of anode and cathode active material layers has a concentration gradient by a single process using an aerosol deposition method.

Method for manufacturing all solid electrode having solid electrolyte concentration gradient

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 method for preparing a platinum-manganese dioxide/carbon complex for a positive-electrode material of a lithium-air battery. More specifically, a manganese dioxide/carbon complex is prepared by dispersing carbon in a manganese dioxide precursor solution and applying microwaves, filtering and drying to the resulting solution. Next a platinum-manganese dioxide/carbon complex is prepared by dispersing the manganese dioxide/carbon complex in ethylene glycol, adding a platinum precursor and applying microwaves to the resulting solution. The platinum-manganese dioxide/carbon complex synthesized according to the present invention exhibits lower overvoltage and higher current density in oxygen reduction and oxidation reactions as compared to either a manganese dioxide/carbon complex or a platinum/carbon complex.

Technique for manufacturing platinum-manganese dioxide/carbon complex for use in positive electrode of lithium-air battery

Growing community of inventors

Gyeonggi-do, South Korea

Kyoung Han Ryu