Korea Advanced Institute of Science and Technology

Lg Energy Solution, Ltd.

Lg Chem, Ltd

Leland Stanford Junior University

Libest Inc.

Khvatec Co., Ltd.

Jang Wook Choi

Byoungkuk Son

Eunkyung Park

Byung Gon Kim

Minchul Jang

Joo Seong Kim

Junghun Choi

Donghyeon Kang

Ali Coskun

Yong Ju Lee

Doo Kyung Yang

Eun Kyung Kim

Yi Cui

Yong Hee Lee

Hye Jin Kim

Min Chul Jang

Se Ho Park

Suk Il Youn

Liangbing Hu

Seung Youn Choi

Yuan Yang

Minehul Jang

Byoung Kuk Son

Sung Hyeon Park

Sung Hun Choi

Tae Woo Kwon

A battery pouch that is formed to accommodate an electrode assembly, comprising: a first member layer; and a second member layer that is located between the first member layer and the electrode assembly, and contains an elastomer and protrudes toward the electrode assembly at a plurality of locations to be brought into discontinuous contact with the electrode assembly, wherein the second member layer has spaces open to the electrode assembly between the protruding portions. Accordingly, the power output characteristics of the battery can be improved and the damage to the damage to the sealing portion can be prevented.

Sheath material for battery

A method of preparing a structure, more particularly, a method of preparing a structure capable of ensuring a space for carrying an electrode active material by a simple method which includes an electrospinning process using a double nozzle electrospinning device and a heat treatment process.

Method for manufacturing structure

An electrode and a lithium secondary battery including the same. By preparing an electrode including an electrode active layer formed using a structure capable of supporting an electrode active material, safety and charge and discharge properties of a battery are improved due to morphological characteristics of the electrode active material being supported inside the structure.

Electrode and lithium secondary battery comprising same

The present disclosure provides a rotaxane polymer binder containing a polymer based on a rotaxane structure. The polymer binder may further contain a polymer cross-linked with a polar polymer. The polar polymer may be a polymer containing the element F, O or N in a functional group and having high polarity. In addition, the present disclosure provides an electrode containing the rotaxane polymer binder as a binder for a lithium secondary battery, and a secondary battery containing the electrode.

Rotaxane polymer binder for lithium secondary battery, electrode comprising same, and secondary battery comprising same

A structure, and more specifically a tube-shaped structure having an inner surface and two ends, wherein one or both ends are open and the inner surface is exposed through said one or both open ends, and a metal provide on the inner surface. Also, an electrode active material, such as lithium metal, on the metal included on the inner surface of the tube.

Tube structure having metal on inner surface thereof

The present disclosure provides a polymer binder for a secondary battery electrode, which serves as a binder for a carbon-coated lithium iron phosphate (c-LiFePO) electrode and is a copolymer containing a hard segment capable of hydrogen bonding in the electrode and a soft segment having a polyol structure. Also, the present disclosure provides a secondary battery electrode and a lithium secondary battery containing the same, wherein a nonaqueous electrolyte solution is applied to an electrode mixture containing the binder for an electrode.

Binder having high adhesion for carbon-coated lithium iron phosphate electrode, electrode containing same, and lithium secondary battery containing same

The present invention relates to a porous silicon-silicon oxide-carbon composite comprising a silicon oxide-carbon structure and silicon particles, wherein the silicon oxide-carbon structure comprises a plurality of micropores, and the silicon particles are uniformly distributed in the silicon oxide-carbon structure. The porous silicon-silicon oxide-carbon composite of the present invention shows decreased volume expansion due to the intercalation of lithium ions and improved electric conductivity, and has a porous structure. Accordingly, an electrolyte easily penetrates into the porous structure, and output properties may be improved. When the composite is included in a negative electrode active material, the performance of a lithium secondary battery may be further improved.

Porous silicon-silicon oxide-carbon composite, and method of preparing the same

Disclosed is a separator for a lithium battery, which includes a first polymer and a second polymer, has an interchain distance of 2.8 &#x212b; or less, and is free from pores, wherein the second polymer has higher polarity than the first polymer.

Poreless separator for lithium air battery

The present invention relates to a polymer-sulfur copolymer, a preparation method thereof, and a lithium-sulfur battery including the same. In the case of the polymer-sulfur copolymer according to the present invention, since the carrier is polymerized, there is no possibility that the carrier is eluted, and since the sulfur is covalently bonded to the polymer and uniformly distributed in a certain size in the copolymer, when used as a positive electrode active material for the lithium-sulfur battery, the problem of elution of the polysulfide can be improved. In addition, the polymer-sulfur copolymer according to the present invention has a high sulfur impregnation amount, thereby making it possible to realize a high capacity battery.

Polymer-sulfur copolymer, method for preparing same, and lithium-sulfur battery comprising same

As consistent with various embodiments, an electronic device includes a fibrous material having a conductive coating thereon. The conductive coating includes conductive nanoparticles coupled to fibers in the fibrous material. The structure is implemented in connection with a variety of devices, such as a capacitive device or a battery. Other embodiments are directed to forming conductive fibrous sheets, in dispersing a nanomaterial in a solution and applying the solution to a fibrous sheet, such as commercial paper, to form a conductive sheet.

Conductive fibrous materials

Growing community of inventors

Daejeon, South Korea

Jang Wook Choi