Lg Energy Solution, Ltd.

Korea Research Institute of Chemical Technology

Lg Chem, Ltd

Cqv Co., Ltd.

Korea Advanced Institute of Science and Technology

Jung Min Lee

Chul Haeng Lee

Young Min Lim

Jeong Kwon Suh

Chul Eun Yeom

Jung Gu Han

Kyung Mi Lee

Chul Ung Kim

Soon Yong Jeong

Kwang Joo Kim

Byung Ki Park

Kwang Su Lim

Sung Yun Jo

Kwang Choong Kang

Beom Sik Kim

Yu Ha An

Yi Jin Jung

Choong Kyun Yeom

Gil Wan Chang

Dong Uk Choe

Chun Hee Park

Hang Kyo Jin

Jeong Hwan Park

Heon Kim

Sung Ho Chun

Sung Cheol Yoon

Sang Jin Moon

Hyo Jeong Hong

Hyun Yeong Lee

Su Hyeon Ji

Yoon Gyo Cho

Jae Cheon Koh

Younghoon Lee

Yeon Ji Oh

Euihan Jung

Oh Yun Kwon

Kil Wan Chang

Won Uook So

Insoo Park

Tae Sun Lim

Jong Ah Kim

Jaimie Y Park

Min Joong Lee

Ryan H Choi

Chin Wan Chung

A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt, an organic solvent containing a carbonate compound and a propionate compound, a first additive containing a compound represented by the following Formula 1, and a second additive containing 1,3,6-hexanetricarbonitrile, wherein the first additive and the second additive are present in a weight ratio of 1:1.1 to 1:5.5,NC—R—CH═CH—R—CN  [Formula 1]

Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery including the same

A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery comprising the same are provided. The non-aqueous electrolyte solution for a lithium secondary battery of the present disclosure includes a lithium salt, an organic solvent and a compound represented by Formula 1 as a first additive, thereby improving the high-temperature storage characteristics of the secondary battery:

A non-aqueous electrolyte and a lithium secondary battery including the same are disclosed herein. The non-aqueous electrolyte may be used in a high-voltage battery to achieve excellent life characteristics. In some embodiments, a non-aqueous electrolyte includes an organic solvent, a lithium salt, a compound represented by Formula 1, and a compound represented by Formula 2, wherein, when an amount of the compound represented by Formula 1 is X wt % and an amount of the compound represented by Formula 2 is Y wt % based on a total weight of the non-aqueous electrolyte, X and Y satisfy X+Y≤5 and X≤Y,CN—R—CN  [Formula 1]

Non-aqueous electrolyte for lithium secondary battery and lithium secondary battery including the same

A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes a lithium salt, an organic solvent, and a compound represented by Formula 1 as an additive. A lithium secondary battery including the non-aqueous electrolyte solution has improved high-rate charge and discharge characteristics at high temperature.

A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes a lithium salt, a fluorine-based linear ether solvent, a fluorine-based cyclic carbonate solvent, and a fluorine-based lithium compound, wherein the fluorine-based linear ether solvent and the fluorine-based cyclic carbonate solvent are present in a weight ratio of 6:4 to 9:1. In some embodiments, a lithium secondary battery having the non-aqueous electrolyte solvent has improved high-temperature storage characteristics.

An electrolyte for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, an electrolyte includes a lithium salt, an organic solvent, and at least one cyano silane-based compound selected from the group consisting of compounds represented by Formulae 1 to 3.

Electrolyte for lithium secondary battery and lithium secondary battery including the same

An additive for a non-aqueous solution of a lithium secondary battery, a non-aqueous electrolyte solution including the same, and a lithium secondary battery include the same are disclosed herein. In some embodiments, an additive is a compound represented by Formula 1. The additive may suppress dissolution of transition metal by forming a stable film on a surface of a positive electrode. A lithium secondary battery including the non-aqueous electrolyte solution having the additive has improved swelling and capacity characteristics at high voltage and during high-temperature storage because dissolution of metallic impurities causing failure in the battery is suppressed.

Non-aqueous electrolyte solution additive for lithium secondary battery, and non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery which include the same

A lithium secondary battery is disclosed herein. In some embodiments, a lithium secondary battery including a positive electrode including a lithium-nickel-cobalt-manganese-based oxide as a positive electrode active material, a negative electrode including a carbon-based negative electrode active material, a separator interposed between the negative electrode and the positive electrode, and a non-aqueous electrolyte solution containing a lithium salt, an organic solvent, and an additive. The organic solvent includes fluoroethylene carbonate in amount of 10 wt % or greater and ethylene carbonate in an amount of 20 wt % or less, based on the total weight of the organic solvent. The additive includes propene sultone and lithium fluoromalonato (difluoro) borate. The driving voltage of the lithium secondary battery is 4.35 V or greater.

Lithium secondary battery

A non-aqueous electrolyte solution for a lithium secondary battery according to the present technology includes: a lithium salt; an organic solvent; and a first additive, and the first additive includes a compound represented by following Chemical formula 1:

Non-aqueous electrolyte solution for lithium secondary battery

The present disclosure provides a non-aqueous electrolyte including an additive for a non-aqueous electrolyte, which is represented by the following Chemical Formula 1: In Chemical Formula 1, Rto Rare each independently any one selected from the group consisting of H, an alkyl group having 1 to 10 carbon atoms, and an alkoxy group having 1 to 10 carbon atoms, and R may be an aliphatic unsaturated hydrocarbon group having 2 to 10 carbon atoms, or —OR' (R′ is an aliphatic unsaturated hydrocarbon group having 2 to 10 carbon atoms).

Non-aqueous electrolyte comprising additive for non-aqueous electrolyte, and lithium secondary battery comprising the same

An electrolyte additive composition of the present invention may improve high-rate charge and discharge characteristics and high-temperature storage and life characteristics of a lithium secondary battery and may achieve an effect of increasing reversible capacity when the electrolyte additive composition is used in an electrolyte while including a novel borate-based lithium compound as well as a lithiated additive.

Electrolyte additive and electrolyte for lithium secondary battery including the same

A method for manufacturing a lithium secondary battery including the steps of manufacturing a lithium secondary battery including an electrode assembly, a non-aqueous electrolyte in which the electrode assembly is impregnated, and a battery case receiving the non-aqueous electrolyte; performing formation of the lithium secondary battery; and performing a degassing process for removing gas generated inside the lithium secondary battery, wherein the non-aqueous electrolyte includes a lithium salt, an organic solvent and 1,2,3-trifluorobenzene as an additive, wherein the 1,2,3-trifluorobenzene is included in an amount of 0.1 wt % to 10 wt % based on the total weight of the non-aqueous electrolyte, and the formation step is performed by charging the state of charge (SOC) of the battery up to 10% to 80%, while applying a voltage of 3.5 V to 4.5 V under a pressure of 0.5 kgf/cmto 5 kgf/cmat 45&#xb0; C. to 80&#xb0; C.

Lithium secondary battery having high-temperature storage properties and method for manufacturing the same

The present invention relates to a method of preparing a lithium secondary battery which includes preparing a lithium secondary battery, which includes an electrode assembly including a positive electrode, a separator, and a negative electrode, a non-aqueous electrolyte solution, in which the electrode assembly is impregnated, and a battery case accommodating the electrode assembly and the non-aqueous electrolyte solution; performing formation on the lithium secondary battery by charging and discharging the lithium secondary battery; and degassing, wherein the positive electrode includes a positive electrode active material and carbon nanotubes as a conductive agent, the non-aqueous electrolyte solution includes a lithium salt, an organic solvent, and monofluorobenzene as an additive, and the performing of the formation is performed by charging to a state of charge (SOC) of 65% to 80% while applying a pressure of 0.5 kgf/cmto 5 kgf/cmat 60&#xb0; C. to 80&#xb0; C.

Method of preparing lithium secondary battery having improved high-temperature storage characteristics

The present invention relates to an antibody being capable of binding specifically to BC200 RNA or its antigen binding fragment, a polynucleotide of encoding the antibody or its antigen binding fragment, a composition, kit and method for detecting BC200 RNA in a sample using the antibody or its antigen binding fragment, and a composition for diagnosis, prevention or treatment of BC200 RNA-associated diseases including the antibody or its antigen binding fragment.

RNA-specific binding antibody

The present invention provides a method for updating betweenness centrality of a graph, which obtains the betweenness centrality of an unweighted graph, which is updated when edges are updated. First of all, the method is performed by obtaining a minimum union cycle (an MUC) of the updated graph, and extracting an MUC (MUC) containing a vertex, which is incident to the updated edge. And a first betweenness centrality due to the shortest paths in the MUC, and a second betweenness centrality due to the shortest paths, not included in the MUC, are calculated. And finally, a final betweenness centrality of the graph is obtained by adding the first and second betweenness centralities. By using the method, the search space and calculation cost can be remarkably reduced.

Method for updating betweenness centrality of graph

Growing community of inventors

Daejeon, South Korea

Jung Min Lee