Korea Institute of Science and Technology

Osong Medical Innovation Foundation, Korea University Research and Business Foundation

Hun-Gi Jung

Kyung Yoon Chung

Won Young Chang

Byung Won Cho

Ji-young Kim

Hyungseok Kim

Jaeho Park

Minah Lee

Dong Hyun Kim

Si Hyoung Oh

Sang Ok Kim

Hee-Dae Lim

Moeez Iqra

Seungho Yu

Ghulam Ali

Jong Ho Lee

Byung Kook Kim

Hae-Weon Lee

Ji-Won Son

Hyoungchul Kim

Min Kyung Cho

Sung Jun Choi

Eu Deum Jung

Ji-Hoon Lee

Bin Na Yoon

Jiwon Jeong

Won Chang Choi

Mobinul Islam

Ha Kyung Roh

Liau Dieky Susanto

Wonchang Choi

Young Soo Yun

Juhyeon Ahn

Eun Seong Kim

The present disclosure relates to a cathode active material for a secondary battery, a cathode for a secondary battery including the same, a secondary battery including the cathode for a secondary battery and manufacturing methods thereof. More particularly, it is possible to obtain a secondary battery having excellent electrochemical characteristics by electrochemically inducing a structural phase change in the cathode active material of a secondary battery including NaCl as a cathode active material.

Cathode active material for secondary battery, cathode for secondary battery including the same, secondary battery including the cathode for secondary battery, and manufacturing methods thereof

The present disclosure provides a composite wherein NaCl nanoparticles are uniformly dispersed on reduced graphene oxide (rGO), a positive electrode active material including the same, a sodium secondary battery including the same, and a method for preparing the same. The positive electrode active material according to the present disclosure has a structure wherein NaCl nanoparticles are uniformly dispersed on rGO in a one-step process through chemical self-assembly. Therefore, the positive electrode active material according to the present disclosure exhibits superior electrochemical properties with high capacity because the small NaCl particles are dispersed uniformly and is economically favorable because the preparation process is simple.

Composite for positive electrode active material of secondary battery, secondary battery including same, and method for preparing same

Disclosed is a method of preparing a cathode active material useful in a sodium ion secondary battery having high reversible capacity and excellent cycle characteristics. The method for preparing a cathode active material composed of Zr-doped NaLiMOincludes the steps of (A) doping LiMOwith Zrto provide Zr-doped LiMO; and (B) dissociating Li ion from the Zr-doped LiMOand inserting Na ion thereto to provide the Zr-doped NaLiMO, wherein M is selected from Ti, V, Cr, Mn, Fe, Co, Ni, Mo, Ru, and combinations thereof, and wherein 0.005&#x3c;w&#x3c;0.05, 0.8&#x2264;x&#x2264;0.85, 0.09&#x2264;y&#x2264;0.11, 7&#x2264;x/y&#x2264;10, 0.7&#x2264;z&#x2264;0.95, and 1.95&#x2264;a&#x2264;2.05. When the cathode active material is used for manufacturing a cathode for a sodium ion secondary battery, the battery can substitute for a conventional, expensive lithium ion secondary battery.

Cathode active material for sodium ion battery, and preparation process thereof

Disclosed is a calcined carbon material for a magnesium battery anode. The calcined carbon material includes catalytic carbon nanotemplates having a network structure in which nanofibers are entangled three-dimensionally. The calcined carbon material can be used as a magnesium battery anode material. Also disclosed is a method for preparing the calcined carbon material.

Calcined carbon material for magnesium battery anode and method for preparing the same

An anode active material for a sodium ion secondary battery, a sodium ion secondary battery including an anode active material, and an electric device including the sodium ion secondary battery are disclosed. The anode active material for a sodium ion secondary battery includes a cobalt tin spinel oxide represented by CoSnO. The sodium ion secondary battery includes an anode made of an anode active material composed of a cobalt tin spinel oxide represented by Chemical Formula 1 below:CoSnO,&#x2003;&#x2003;Chemical Formula 1

Anode active material, a sodium ion secondary battery including an anode active material, and an electric device including the secondary battery

The present invention relates to a lithium-ion-conductive sulfide-based solid electrolyte which contains lithium (Li), sulfur (S), phosphorus (P), indium (In) and selenium (Se) and has a crystal structure of InSe and a method for preparing the same.

Lithium ion conductive sulfide-based solid electrolyte comprising indium selenide and a method for preparing the same

An in-situ coin cell support device for transmission mode X-ray diffraction analysis capable of controlling temperature. The device includes a coin cell seating unit including a seating part for receiving an in-situ coin cell, a positive electrode tab coupled to the seating part and connected to a positive electrode of the in-situ coin cell, and a negative electrode tab coupled to the seating part and connected to a negative electrode of the in-situ coin cell, a housing having a heat-insulating function, which surrounds the coin cell seating unit such that the positive and negative electrode tabs extend outwards from the housing and which includes one side wall and an opposite side wall arranged opposite each other with the in-situ coin cell interposed therebetween, and a temperature control unit coupled to the exterior of the housing and including an inlet port, an outlet port, and a flow passage.

In-situ coin cell support device for transmission mode X-ray diffraction analysis capable of controlling temperature

Disclosed is an anode material for a sodium secondary battery. The anode material includes a tin fluoride-carbon composite composed of a tin fluoride and a carbonaceous material. The anode material can be used to improve the charge/discharge capacity, charge/discharge efficiency, and electrochemical activity of a sodium secondary battery. Also provided are a method for preparing the anode material and a sodium secondary battery including the anode material.

Anode material for secondary battery,secondary battery including the anode material and method for preparing the anode material

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Seoul, South Korea

Hun-Gi Jung