Lg Chem, Ltd

Lg Energy Solution, Ltd.

Korea Advanced Institute of Science and Technology

Ulsan National Institute of Science and Technology

Seoul National University

Korea Research Institute of Chemical Technology

Kt&g Corporation

Silicon Works Co., Ltd.

Unist, Inc.

Jae Hyun Lee

Jeong Ju Cho

Sung Kyun Chang

Jihyun Kim

Soo Hyun Ha

Joon Hwan Lee

Soo Hyun Lim

Tae Jin Park

In Sung Uhm

Daehong Kim

Yo Han Kwon

Je Young Kim

Geun Chang Chung

Dae Soo Kim

Dong Kyu Kim

Min Chul Jang

Sang Hoon Choy

Seong Min Lee

Yong Ju Lee

Tae Jin Kim

Min Hee Lee

SooHyun Lim

Chul Gi Hong

Soon Ho Ahn

Youn Kyoung Lee

Dong Chan Lee

SeongMin Lee

Sang Young Lee

Han Ho Lee

Min Cheol Shin

Sin Kyu Kim

Joonwon Lim

Seunghyun Chung

Doo Hyung Kang

Eui Yong Bang

Won Hee Jeong

Ju Myung Kim

Joon Won Lim

Seong Hyeok Kim

Seok Koo Kim

Minchul Jang

Sun Sik Shin

Song Taek Oh

Oh Byong Chae

Byoungkuk Son

Jong Ku Lee

Jeong Seok Lee

Ji Heon Ryu

Duk Hyun Ryu

Jung Woo Yoo

Mi Kyung Kim

Eunkyung Park

Hoe Jin Hah

Seung Tae Hong

Jong Keon Yoon

Ji Hye Park

Hyeong Jin Kim

Ho Chun Lee

Jong Mo Jung

InSung Uhm

Jeong Min Kim

Mi Young Son

Jong Ho Jeon

Kyung Hwa Woo

Su Rim Lee

Jeongbeom Lee

Seung Ryul Choi

YoHan Kwon

JangBae Kim

Dae Hyeon Kim

Kil Yeong Choi

Su Hwan Kim

Jun Yong Jeong

Young Rim Han

Hyo Shik Kil

Jae Min Kim

Sun Jung Hwang

Mi Hie Yi

YounKyoung Lee

Seung Soo Kim

Jung Kyu Seo

Sung Goo Lee

Jungseok Choi

Hyeokmoo Lee

Seung Mo Oh

Woo Jin Jeong

Jun Beom Seo

Seongmin Ha

Yong Nam Choi

Kyungkoo Lee

Min Sun Cho

Jong Hoa Ok

Sung Hyup Lee

Iljoon Lee

A cooling structure, which is located downstream of a smoking material portion provided in a smoking article and located upstream of a mouthpiece portion, includes: a body portion that has a tube shape having a hollow therein and is made of a paper material; and a plurality of perforations that are arranged in a circumferential direction of the body portion such that the inside and outside of the body portion are in fluid communication with each other.

Cooling structure and a smoking article including the same

A lithium secondary battery including a positive electrode, a negative electrode comprising a negative electrode current collector, and an electrolyte interposed between the positive electrode and negative electrode. The lithium metal is formed on the negative electrode current collector by lithium ions migrating toward the negative electrode current collector after charge. The electrolyte comprises a sacrificial salt having an oxidation potential of 5 V or less with respect to lithium. The lithium secondary battery forms lithium metal while being blocked from the atmosphere, and thereby improves an existing problem caused by high reactivity of lithium metal. By including a sacrificial salt in an electrolyte, lithium consumption caused by an irreversible reaction of a negative electrode is reduced, which may prevent decline in the battery capacity and lifetime properties.

Lithium secondary battery

A negative electrode active material that includes an active material core that allows for the intercalation and deintercalation of lithium ions. The negative electrode active material also includes a plurality of conductive materials positioned on a surface of the active material core, a plurality of organic linkers each including a hydrophobic group and a polar functional group bonded to the hydrophobic group, and an elastic unit. The elastic unit includes an elastic moiety having two or more binding sites, and a functional group bonded to a binding site of the elastic moiety. The functional group reacts with the polar functional group of the organic linker, and one or more of the plurality of organic linkers are connected to the conductive materials through the hydrophobic groups of the organic linkers.

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

A negative electrode active material that includes active material core particles that allow the intercalation and deintercalation of lithium ions; a conductive material disposed on a surface of each active material core particle; an organic linker that connects the active material core particles and the conductive material; and an elastomer that covers at least a part of the active material core particles and the conductive material. The conductive material includes at least one selected from the group consisting of a linear conductive material and a planar conductive material, and the organic linker is a compound that includes a hydrophobic structure and a substituent including a polar functional group.

Negative electrode active material including active material core particle linked to conductive material with organic linker and elastomer covering active material core particle and conductive material, and lithium secondary battery including the same

The present invention relates to a three-dimensional structure electrode, a method for manufacturing same, and an electrochemical element including the electrode. The present invention is characterized by comprising: (a) an upper conductive layer and a lower conductive layer which have a structure constituting an assembly within which a conductive material and a porous nonwoven fabric including a plurality of polymeric fibers are three-dimensionally connected in an irregular and continuous manner, thereby forming a mutually connected porous structure; and (b) an active material layer forming the same assembly structure as the conductive layers and forming a three-dimensionally filled structure in which electrode active material particles are uniformly filled inside the mutually connected porous structure formed in the assembly structure, wherein the active material layer is formed between the upper conductive layer and the lower conductive layer.

Three-dimensional structure electrode and electrochemical element including same

A negative electrode active material that includes an active material core that allows the intercalation and deintercalation of lithium ions; and a conductive material that is attached to a surface of the active material core through an organic linker. The conductive material includes at least one selected from the group consisting of a linear conductive material and a planar conductive material. The organic linker is a compound that includes a hydrophobic structure and a substituent including a polar functional group.

Negative electrode active material and lithium secondary battery including the same

A method for regenerating a cell having an electrode assembly, in which electrodes and a separator are alternately combined with each other, an electrolyte, and a battery case accommodating the electrode assembly and the electrolyte according to the present invention includes performing a negative pressure processing process in which a negative pressure is applied to the cell to allow a gas disposed between the electrodes to move outside the electrode assembly and performing an ultrasonic wave processing process in which the cell is stimulated by ultrasonic waves to allow the electrolyte disposed outside the electrode assembly to move between the electrodes.

Method for regenerating cell

A method for regenerating a lithium secondary battery including a lithium resupply step in which a lithium resupply electrode is provided in the secondary battery, and the positive electrode is set as a counter electrode, and the lithium resupply electrode is set as a working electrode to charge lithium ions to the positive electrode through the lithium resupply electrode and a negative electrode discharging step in which, after the lithium ions are resupplied to the positive electrode through the lithium resupply step, the lithium resupply electrode is set as the counter electrode, and the negative electrode is set as the working electrode to completely discharge the negative electrode up to a discharge limit.

Method for regenerating lithium secondary battery

A method for regenerating an end of life (EOL) cell which comprises an electrode assembly including a cathode, an anode, and a separator interposed between the cathode and the anode, wherein the EOL cell is left under a high temperature environment of 80&#xb0; C. or higher for a predetermined time while pressure is applied thereto, whereby gas located within the electrode assembly is moved to the outer portion of the electrode assembly is provided. The method can regenerate an EOL cell in a simple and economical way without breaking or damaging the same, and furthermore can also be applied to a pack or module which is an extended unit of the cell. A pressuring jig is also provided.

Method for regenerating EOL cell

An electrostatic discharge protection circuit includes a first internal circuit formed between a first power line and a first ground line, and configured to operate in a range between a first power and a first ground; a second internal circuit formed between a second power line and a second ground line, and configured to operate in a range between a second power having a level higher than the first power and a second ground; a signal line connecting an output terminal of the first internal circuit and an input terminal of the second internal circuit; and a protection circuit configured to form a bypass path for bypassing a stress due to electrostatic discharge when the electrostatic discharge occurs, between the signal line and the second ground line, to protect a semiconductor device of the second internal circuit from the electrostatic discharge.

Electrostatic discharge protection circuit

The present invention relates to a battery cell refillable with an electrolyte, an electrolyte refilling system for a battery pack configured to include a plurality of battery cells, and an electrolyte refilling method for a battery pack of an electric vehicle.

Battery cell refillable with electrolyte, battery pack, electrolyte refilling system for battery pack, and electrolyte refilling method for battery pack

A method of manufacturing a secondary battery using lithium metal as a negative electrode, and more particularly, a method of manufacturing a secondary battery capable of removing an oxide film formed on a lithium metal by performing some initial discharges during the initial period of the activation process to thereby improve the cycling performance of the battery by allowing lithium to be uniformly precipitated. The result minimizes the reduction of ion conductivity by removing the oxide film formed on the surface of the lithium metal through the initial partial discharge and improves the battery cycle performance since the precipitation reaction of lithium becomes uniform.

Method for manufacturing secondary battery using lithium metal as negative electrode

Disclosed are an electrode active material containing moisture in an amount less than 2,000 ppm per 1 g of lithium metal oxide or moisture in an amount less than 7,000 ppm per 1 cmof the lithium metal oxide, and an electrode containing moisture in an amount less than 2,000 ppm per 1 cmof an electrode mix.

Moisture-limited electrode active material, moisture-limited electrode and lithium secondary battery comprising the same

Disclosed is an electrode for secondary batteries including an electrode mixture including an electrode active material, binder and conductive material coated on a current collector. The present invention provides an electrode for secondary batteries wherein an electrode active material is a cathode active material and/or anode active material, and the conductive material is included in an amount of 0.1 to 15% based on total weight of the electrode mixture, and a secondary battery including the same.

Electrode for secondary battery and secondary battery including the same

Growing community of inventors

Daejeon, South Korea

Jae Hyun Lee