Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Seoul National University

Industry-university Cooperation Foundation Hanyang University

Seung-sik Hwang

Jae-man Choi

Moon-seok Kwon

Min-sang Song

Jeong-kuk Shon

Han-su Kim

Seok-soo Lee

Jin-hwan Park

Dong-Joon Lee

Doo-yeon Lee

Young-Gyoon Ryu

Myung-jin Lee

Duk-Jin Oh

Joung-won Park

Myung-hoon Kim

Young-min Choi

Boris Aleksandrovich Trofimov

Seok-gwang Doo

Jun-hwan Ku

Dong-min Im

Duck-Chul Hwang

Myung-dong Cho

Ji-man Kim

Kyu-sung Park

Chung-Kun Cho

Gwi-ok Park

Young-gyonn Ryu

Sang-mock Lee

Victor Roev

Hee-young Sun

Jong-Hwan Park

Dong-joon Lee

Jae-gu Yoon

Hyung-Tae Kim

Jun-young Mun

Yoon-sok Kang

Myung Jin Lee

Won-sung Choi

Han-Su Kim

Young-gyoon Ryu

Un-gyu Paik

Ju-yup Kim

Hee-chul Jung

Ryoung-hee Kim

Seung Uk Son

Nina K Gusarova

Yun-Suk Choi

Young-Gyu Kim

Sang-min Ji

Hun-joon Sohn

Sang-Mock Lee

Dong-jin Ham

Hyung-wook Ha

Oh-min Kwon

Tae-seup Song

Jae-jun Chang

Ka-hee Shin

Tae-eun Yim

Ja-man Choi

Su-keun Yoon

Sung-Il Lee

Jong-hyeok Park

A negative active material, a method of preparing the same, and a lithium secondary battery including the negative electrode. The negative active material includes a plurality of titanium oxide nanotubes, wherein the Raman shift of the negative active material includes a characteristic peak located at a Raman shift between about 680 cmand about 750 cm.

Negative active material, method of preparing the same, negative electrode including the same, and lithium secondary battery including the negative electrode

Provided herein is a negative active material including an ordered porous manganese oxide, wherein pores of the ordered porous manganese oxide have a bimodal size distribution. Provided herein is a method of preparing a negative active material that includes the ordered porous manganese oxide. The invention also includes a negative electrode which includes the negative active material and a lithium battery which includes the negative electrode.

Negative active material including manganese oxides, negative electrode including the same, lithium battery including negative electrode and method of preparing negative active material

A negative active material including graphite; silicon nanowires; and silicon nanoparticles, wherein a silicon nanowire of the silicon nanowires and a silicon nanoparticle of the silicon nanoparticles are each disposed on a particle of the graphite to form a composite with the graphite.

Negative active material, negative electrode including the negative active material, and lithium secondary battery including the negative electrode

An anode for a lithium secondary battery including: a composite anode active material including an anode active material, and a water-soluble polymer disposed on a surface of the anode active material; and a binder disposed on the composite anode active material, the binder including one or more selected from a polyimide, a polyamideimide, a polyamide, and a polyetherimide.

Anode containing composite anode active material including water-soluble polymer coating and lithium secondary battery including the same

A gel polymer electrolyte including: an organic solvent; a lithium salt that reacts with residual water contained in the organic solvent to produce at least one material selected from the group consisting of a protonic acid and a Lewis acid; and a polymer that is generated by polymerizing at least one monomer selected from the group consisting of monomers represented by Formulae 1 to 3 below: 

Gel polymer electrolyte, lithium battery including gel polymer electrolyte, and method of preparing gel polymer electrolyte

A polymer including a first repeating unit represented by Formula 1 and a second repeating unit including a substituted or unsubstituted C2-C30 alkenyl group: wherein, in Formula 1, groups R, R', A, A&#x2032;, Y, and Y&#x2032; are defined in the specification.

Polymer, electrode for lithium batteries including the polymer, and lithium battery including the electrode

A lithium titanium oxide spinel having a ratio of FWHM1/FWHM2 at a spinning rate of about 5 kHz to about 50 kHz of about 1.70 or less, wherein FWHM1 is a full width at half maximum of aLi peak present about &#x2212;10 parts per million to about +10 parts per million in a solid state nuclear magnetic resonance spectrum of the lithium titanium oxide, FWHM2 is a full width at half maximum of aLi peak present about &#x2212;10 parts per million to about +10 parts per million in a solid state nuclear magnetic resonance spectrum of a lithium chloride standard reagent, and FWHM1 and FWHM2 are measured at the same spinning rate.

Lithium titanium oxide, method of preparing the same, negative electrode including the same, and lithium battery including the negative electrode

A stack type battery includes a stack including: a plurality of cathode sheets; a plurality of anode sheets, which are alternately disposed with the cathode sheets; and a plurality of separators, where each of the separator is disposed between a corresponding cathode sheet of the cathode sheets and a corresponding anode sheet of the anode sheets, where the stack includes first to third protrusions, the first protrusion includes a portion of the cathode sheets which does not overlap the anode sheets and the separators, and the second protrusion includes a portion of the anode sheets which does not overlap the cathode sheets and the separators.

Stack type battery

A positive electrode for a lithium battery including a protected negative electrode containing a lithium metal or a lithium alloy, wherein the positive electrode contains a positive electrode active material, a polyoxometalate compound, and a conductive material. Also provided is a lithium battery including the positive electrode.

Positive electrode for lithium batteries, lithium battery including the positive electrode, and methods of manufacture thereof

An electrode active material, an electrode including the electrode active material, a lithium battery including the electrode, and a method of preparing the electrode active material. The electrode active material includes a core having at least one of a metal or a metal oxide that enables intercalation and deintercalation of lithium ions and a crystalline carbon thin film that is formed on at least a portion of a surface of the core. The electrode active material has a nano-structure.

Electrode active material, electrode comprising the same, lithium battery comprising the electrode, and method of preparing the electrode active material

A polymer including a first repeating unit represented by Formula 1, a polymer composition for a lithium battery including the polymer, an electrode for a lithium battery including the polymer composition, and a lithium battery including the electrode: wherein, in Formula 1, R, R', A, A&#x2032;, Y, and Y&#x2032; are as defined in the specification.

Polymer composition for lithium secondary battery, electrode for lithium secondary battery including the same, and lithium secondary battery including the electrode

A flexible secondary battery includes an electrode stack structure. The electrode stack structure includes a first electrode layer including a first metal current collector, a second electrode layer including a second metal current collector, an isolation layer between the first electrode layer and the second electrode layer, connection tabs respectively extended from an end portion of the first metal current collector at a first end portion of the first electrode layer and an end portion of the second metal current collector at a first end portion of the second electrode layer; and a fixing element which fixes the end portions of the first and second metal current collectors only at a first end portion of the electrode stack structure. Second end portions of the first and second electrode layers opposite to the first end portions thereof are movable.

Flexible secondary battery

A redox flow battery. A metal-ligand coordination compound including an aromatic ligand that contains an electron withdrawing group is used as the catholyte and/or the anolyte so that a redox flow battery having high energy density and excellent charge/discharge efficiency may be provided.

Redox flow battery

Provided are redox flow batteries employing supporting electrolyte of a ring- or spiro-type structure and having high energy efficiencies and energy densities.

An electrolyte composition including a macro azo initiator containing a polyethylene oxide repeating unit, and a multi-functional urethane acrylate-based monomer, a gel polymer electrolyte including the electrolyte composition, and a lithium battery including the gel polymer electrolyte.

Electrolyte composition, gel polymer electrolyte, and lithium battery including the gel polymer electrolyte

Growing community of inventors

Seongnam-si, South Korea

Seung-sik Hwang