Lg Chem, Ltd

Lg Energy Solution, Ltd.

Other

Korea Advanced Institute of Science and Technology

Min Chul Jang

DalMo Kang

Jin Kyu Lee

Doo Kyung Yang

Sung Kyun Chang

Byoung Kuk Son

Jae Hyun Lee

Jeong Ju Cho

Soo Hyun Ha

Yo Han Kwon

Taehyuck Kim

Eui Yong Bang

Jung Hun Choi

Sang Hoon Choy

Sun Sik Shin

Ki Young Lee

In Sung Uhm

Da Young Sung

Taek Gyoung Kim

Il Hong Kim

Eun Kyung Park

Sung Chul Lim

Joon Hwan Lee

JunSeok Choi

Taehwan Roh

Seongtae Kim

Byoung Hyo Jung

Seung Taek Hong

In Cur Shin

Chang Hun Park

Hyang Mok Lee

Dal Mo Kang

Hong Kyu Park

BumHyun Lee

Soon Ho Ahn

Seong Ho Lee

Duk Hyun Ryu

Jong Moon Yoon

Seung Don Choi

Suk Il Youn

Han Ho Lee

Sun Kyu Kim

In Cheol Shin

Yu Mi Kim

Jinkyu Lee

Seungdon Choi

Sangyoon Jeong

Jang Wook Choi

Chan Yeup Chung

Jin Seok Heo

You Rim Yoon

Sang Yoon Jeong

Yo Jin Kim

Yeon Suk Hong

Jun Yong Jeong

Yong Kyu Ju

Joonwon Lim

Seung Su Cho

YoJin Kim

Chang Moon Jeong

Eun Ju Kang

Jun Seok Choi

Nan Ji Yun

Soul Gie Hong

Ali Coskun

Kyong Won Kang

Chang Ho Kim

Byong Kuk Son

Seungsu Cho

Myeong Hun Song

SeYon Hwang

SoulGie Hong

Soon Sik Jang

Seyon Hwang

Soulgie Hong

The present technology relates to a method of manufacturing a negative electrode, and the method includes: manufacturing a negative electrode having a negative electrode active material layer formed thereon by coating a negative electrode slurry including a negative electrode active material at least on one surface of a current collector; pre-lithiating the negative electrode; and forming an inorganic coating layer on a surface of the negative electrode active material layer by aging the pre-lithiated negative electrode under an COatmosphere.

Method of manufacturing negative electrode having inorganic coating layer formed thereon

An irreversible additive includes an oxide having a trigonal crystal structure and represented by Formula 1, and a coating layer positioned on a surface of the oxide and including a compound represented by Formula 2. A positive electrode material including the irreversible additive and a lithium secondary battery including the positive electrode material including the irreversible additive are also provided.

Irreversible additive, positive electrode material including irreversible additive, and lithium secondary battery including positive electrode material

A positive electrode active material includes a lithium transition metal oxide having a spinel crystal structure, and a coating layer positioned on the surface of the lithium transition metal oxide, wherein the coating layer has an orthorhombic structure, and includes an oxide represented by Formula 1. A method for producing the positive electrode active material, a positive electrode including the positive electrode active material, and a lithium secondary battery, the positive electrode active material.

Positive electrode active material for lithium secondary battery and method for producing the same

Disclosed is a binder composition for a negative electrode which includes a binder polymer containing at least one first functional group selected from the group consisting of a hydroxy group and a carboxyl group, and a crosslinked polymer containing at least one second functional group selected from the group consisting of an amino group and an isocyanate group, wherein the crosslinked polymer is present in an amount of 1.5 parts by weight to 8.5 parts by weight based on 100 parts by weight of the binder polymer.

Binder composition for negative electrode, negative electrode, and secondary battery

The present invention relates to an anode including multiple current collectors juxtaposed in parallel, and a secondary battery comprising same, wherein the anode enables providing a high-capacity secondary battery while suppressing volume changes due to a silicone component-containing active material employed therein.

Anode including multiple current collectors juxtaposed in parallel, and secondary battery comprising same

A film-shaped coating layer including at least one lithium ion conductive compound having a band gap of 5.5 eV to 10 eV formed on the surface of a core including a lithium composite metal oxide to a thickness at which dielectric breakdown does not occur according to types of the lithium ion conductive compound and the lithium composite metal oxide under charge and discharge conditions. Thereby, an oxidation/reduction reaction is suppressed by blocking the movement of electrons at an interface between an active material and an electrolyte solution by the coating layer which surrounds the surface of particles and has lithium ion conductivity, and, as a result, a positive electrode active material for a secondary battery, which may improve energy density of an electrode and life characteristics of a battery, and a secondary battery including the same are provided.

Cathode active material for secondary battery and secondary battery comprising same

The present invention relates to a negative electrode for lithium secondary battery and a lithium secondary battery including the same. The negative electrode includes a negative electrode active layer comprising lithium, and a protective layer disposed on the negative electrode active layer, wherein the protective layer comprises a polymer matrix having a three dimensional crosslinked network structure of polymer or includes a non-crosslinked linear polymer, and an electrolyte in the polymer matrix in the amount of 100 to 1000 parts by weight based on 100 parts by weight of the polymer matrix. The negative electrode according to the present invention has no concern about loss of electrolyte and the resulting deterioration of battery life characteristics even during the repetitive charging/discharging of the battery and has improved battery stability due to the inhibition of growth of lithium dendrite.

Lithium secondary battery anode and lithium secondary battery including same

The present disclosure relates to a lithium sulfur battery, and the battery includes a cathode and an anode arranged facing each other; a separator interposed between the cathode and the anode; and an electrolyte, and further includes at least one or more membranes of a lithium ion conductive polymer membrane positioned between the cathode and the separator and having a sulfonic acid group (&#x2014;SOH), and a metal oxide membrane positioned between the anode and the separator, and therefore, an electrode active material loss is reduced, an improved lifespan characteristic is obtained by blocking the spread of lithium polysulfide to the anode, and in addition thereto, enhanced safety is obtained by suppressing a dendrite growth in the anode.

Lithium sulfur 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

Disclosed are an electrode assembly for sulfur-lithium ion batteries that uses a lithium-containing compound as a cathode active material and a sulfur-containing compound as an anode active material and a sulfur-lithium ion battery including the same.

Electrode assembly for sulfur-lithium ion battery and sulfur-lithium ion battery including the same

The present invention relates to a multi-layer structured lithium metal electrode and a method for manufacturing the same and, specifically, to a multi-layer structured lithium metal electrode comprising: a buffer layer of lithium nitride (Li3N) formed on a lithium metal plate; and a protective layer of LiBON formed on the buffer layer, and to a method for manufacturing a multi-layer structured lithium metal electrode by continuously forming a lithium nitride buffer layer and a LiBON protective layer on a lithium metal plate through continuous reactive sputtering multi-layer structured lithium metal electrode multi-layer structured lithium metal electrode lithium metal plate multi-layer structured lithium metal electrode lithium metal plate. The multi-layer structured lithium metal electrode of the present invention can protect the reactivity of the lithium metal from moisture or an environment within a battery, and prevent the formation of dendrites, by forming the protective layer.

Multi-layer structured lithium metal electrode and method for manufacturing same

Provided are a secondary battery, a battery module, and a battery pack, which have improved safety. Particularly, since a bulletproof material is disposed on the inside and/or the outside of an exterior part, even when a conductive needle-shaped member penetrates a secondary battery, heating, burning, discharge of evaporated electrolyte, and electrical contact between the needle-shaped member and an electrode can be prevented, thereby improving safety of the secondary battery, the battery module, and the battery pack.

Secondary battery having improved safety

Disclosed is a battery module including a plurality of plate-shaped battery cells which are sequentially stacked, wherein the battery module is configured to have a structure in which two or more hexahedral cell units are connected to each other in series in a state in which the hexahedral cell units are stacked, each of the cell units is configured to have a structure in which two or more battery cells are connected to each other in series in a state in which the battery cells are in tight contact with each other, and electrode terminals (outermost electrode terminals) of outmost battery cells of the cell units are connected to external input and output terminals of the battery module, the outermost electrode terminals having a larger vertical sectional area than electrode terminals of the other battery cells such that the outermost electrode terminals are prevented from being broken by external force.

Battery module of improved reliability and battery pack employed with the same

Disclosed herein is a battery pack configured such that battery modules, each of which includes a plurality of battery cells or unit modules connected to each other in series, are connected to each other in series in a state in which the battery modules are in tight contact with each other or stacked adjacent to each other, the battery pack including a fuse connected in series in an electrical connection circuit between the battery modules and a circuit breaker mounted at an outside of at least one of the battery modules to perform electric conduction when the battery cells swell, the circuit breaker being electrically connected to the electrical connection circuit to break the fuse when electric conduction is performed due to swelling of the battery cells.

Battery pack of improved safety

Disclosed is a battery pack system to supply current necessary to operate an external device, including a battery module including battery cells which can be charged and discharged, a temperature sensor, an auxiliary power unit to supply a charge and discharge pulse current to the battery module, and a controller to connect the auxiliary power unit to the battery module so that the charge and discharge pulse current is supplied to the battery module when a measured temperature (T) of the battery module is less than a set temperature (T) based on information detected by the temperature sensor before the battery module is electrically connected to the external device and to interrupt the supply of the charge and discharge pulse current to the battery module when the temperature of the battery module becomes equal to or greater than the set temperature (T) and an operating method of the same.

Battery pack system of improving operating performance using internal resistance of cell

Growing community of inventors

Daejeon, South Korea

Min Chul Jang