Samsung Electronics Co., Ltd.

Mie University

Samsung Sdi Co., Inc.

Min-sik Park

Dong-min Im

Dong-joon Lee

Sang-bok Ma

Victor Roev

Won-sung Choi

Jin-hwan Park

Jun-young Mun

Yoon-sok Kang

Tae-young Kim

Jae-gu Yoon

Nobuyuki Imanishi

Osamu Yamamoto

Young-Gyoon Ryu

Yasuo Takeda

Myung-hoon Kim

Ki-Hyun Kim

Mi-jeong Song

Dong-Joon Lee

Kyu-sung Park

Won-chang Choi

Tae-ho Yoon

Seung-mo Oh

A metal-air battery including: a negative electrode metal layer; a negative electrode electrolyte layer disposed on the negative electrode metal layer; a positive electrode layer disposed on the negative electrode electrolyte layer, the positive electrode layer comprising a positive electrode material which is capable of using oxygen as an active material; and a gas diffusion layer disposed on the positive electrode layer, wherein the negative electrode electrolyte layer is between the negative electrode metal layer and the positive electrode layer; wherein the negative electrode metal layer, the negative electrode electrolyte layer, and the positive electrode layer are disposed on the gas diffusion layer so that the positive electrode layer contacts a lower surface and an opposite upper surface of the gas diffusion layer, and wherein one side surface of the gas diffusion layer is exposed to an outside.

Metal-air battery having folded structure and method of manufacturing the same

An air battery cathode including an organic-inorganic composite material including lyophobic nanopores, the organic-inorganic composite material including a porous metal oxide, and a lyophobic layer on a surface of a pore of the porous metal oxide and having a contact angle of greater than about 90&#xb0;; and a binder. Also a lithium air battery including the cathode, and a method of manufacture the cathode.

Cathode, lithium air battery including same, and preparation method thereof

An electrolyte for a lithium secondary battery, the electrolyte including: a lithium salt; a non-aqueous organic solvent; and a piperazine derivative represented by Formula 1 having an oxidation potential lower than an oxidation potential of the non-aqueous organic solvent by about 2 V to about 4 V: wherein, in Formula 1, X, Y, and Rto Rare defined in the specification.

Electrolyte for lithium secondary battery and lithium secondary battery using the same

A cathode and a battery including a cathode active material including a layer-structured material having a composition of xLiMO-(1-x)LiMeO; and a metal oxide having a perovskite structure. The cathode active material may have improved structural stability by intermixing a metal oxide having a similar crystalline structure with the layer-structured material, and thus, life and capacity characteristics of a cathode and a lithium battery including the metal oxide may be improved.

Cathode and lithium battery using the same

A metal-air battery including: a negative electrode metal layer; a negative electrode electrolyte layer disposed on the negative electrode metal layer; a positive electrode layer disposed on the negative electrode electrolyte layer, the positive electrode layer including a positive electrode material which is capable of using oxygen as an active material; and a gas diffusion layer disposed on the positive electrode layer, wherein the negative electrode electrolyte layer is between the negative electrode metal layer and the positive electrode layer; wherein the negative electrode metal layer, the negative electrode electrolyte layer, and the positive electrode layer are disposed on the gas diffusion layer so that the positive electrode layer contacts a lower surface and an opposite upper surface of the gas diffusion layer, and wherein one side surface of the gas diffusion layer is exposed to an outside.

A protected anode including: an anode including lithium or capable of reversibly incorporating lithium ions; and a lithium ion-conductive protective layer on the anode and including a ceramic composite represented by Formula 1:LiAlGeMPO&#x2003;&#x2003;Formula 1wherein M is at least one element selected from titanium (Ti), zirconium (Zr), and germanium (Ge), 0&#x2266;a&#x2266;1, 0&#x2266;b&#x2266;1, 0&#x2266;c&#x2266;1, 0&#x2266;d&#x2266;0.5, 0&#x2266;e&#x2266;0.1, and 0&#x2266;f&#x2266;1.

Protected anode, lithium air battery including the same, and method of preparing ion conductive protective layer

A lithium air battery including an anode for intercalating/deintercalating lithium ions; a cathode having oxygen as a cathode active material, a lithium ion conductive solid electrolyte membrane disposed between the anode and the cathode; and an electrolyte, wherein the electrolyte is disposed between the lithium ion conductive solid electrolyte membrane and the cathode, and wherein the electrolyte includes at least one compound selected from a compound represented by Formula 1 and a copolymer including a repeating unit represented by Formula 2 as an additive: 

Lithium air battery

A lithium battery including a negative electrode including a lithium metal or a lithium alloy; a positive electrode; and a polymer gel electrolyte contacting the negative electrode, wherein the polymer gel electrolyte has an ionic conductivity of about 10S/cm or greater, a lithium ion transference number of about 0.15 or greater, and a lithium ion mobility of about 10cm/V&#xd7;sec or greater, wherein the polymer gel electrolyte includes a lithium salt, a polymer capable of forming a complex with the lithium salt, an insulating inorganic filler, and an organic solvent, wherein the organic solvent is inert with respect to the lithium metal, wherein an anionic radius of the lithium salt is about 2.5 Angstroms or greater, and wherein a molecular weight of the lithium salt is about 145 or greater.

Lithium battery

A lithium air battery including an electrolyte including lithium ion conductive polymers and lithium salts between a positive electrode and a lithium ion conductive solid electrolyte membrane. The lithium ion conductive polymers are hydrophilic matrix polymers.

Electrolyte for lithium air battery and lithium air battery including the same

A cathode active material including a lithium metal oxide composite having a first domain and a second domain and represented by Formula 1:[Li(M1)(M2)O]-(1&#x2212;)[LiMeO]&#x2003;&#x2003;Formula 1wherein

Cathode active material, cathode and lithium battery including cathode active material, and method of preparing the cathode active material

A surface-treated electrode active material, a method of surface treating an electrode active material, an electrode, and a lithium secondary battery. The surface-treated electrode active material includes a surface metal oxide layer having higher degree of reduction of a metal than that of a bulk metal oxide layer. The method includes: forming a mixture by adding an untreated electrode active material comprising a metal oxide, and at least one of a basic material and a reducing material to a solvent; and stirring the mixture.

Surface-treated electrode active material, method of surface treating electrode active material, electrode, and lithium secondary battery

An electrolyte for a lithium secondary battery, the electrolyte including a lithium salt, a non-aqueous organic solvent, and a polar additive based on a substituted hetero-bicyclic compound. Oxidation of the electrolyte is prevented by formation of a polar thin film on a surface portion of the positive electrode, which facilitates transfer of lithium ions. The lithium secondary batteries using the electrolyte have excellent high temperature life characteristics and high temperature conservation characteristics.

Growing community of inventors

Hwaseong-si, South Korea

Min-sik Park