Lg Chem, Ltd

Lg Energy Solution, Ltd.

Palo Alto Research Center Inc.

Research Affairs of Snu & Snu R&db Foundation

Korea University Research and Business Foundation

Hoe Jin Hah

Kyoung Ho Kim

Je Young Kim

Il Hong Kim

In Sung Uhm

Ji Yoon Kwon

Jong Keon Yoon

Peter Kiesel

Saroj Kumar Sahu

Ajay Raghavan

Bhaskar Saha

Geun-Chang Chung

Chang-Jun Bae

Mohamed Alamgir

Alexander Lochbaum

Chae Ah Kim

Gyu-Ok Hwang

Kisuk Kang

Seok Koo Kim

Jae Hyun Lee

Sun Sik Shin

Jung Woo Yoo

Tae Gon Kim

Jung Hwan Park

Jooyong Song

Yong Jun Kim

Lars Wilko Sommer

Kyung Hwa Woo

Tobias Staudt

Hyun Seok Lee

Hye Ri Jung

Ji Hee Ahn

Sung Joong Kang

Yeo Kyung Yoon

Soon Hyung Choi

Youn Kyoung Lee

Ji Won Min

Dong Wan Kim

Janis Doelle

Hyun Woong Yun

Bokkyu Choi

Hye Youn Lee

Gwang Hee Lee

Jihyun Hong

Jeong Beom Lee

Hyea Eun Han

Won Jung Kim

Jungwoo Yoo

Ji Hun Seo

Ji Ae Seo

Disclosed are a method of manufacturing a positive electrode mixture for all-solid-state batteries and a positive electrode mixture for all-solid-state batteries manufactured using the same, and more particularly a method of manufacturing a positive electrode mixture for all-solid-state batteries including mixing a positive electrode active material and a solid electrolyte with each other in a dry state, mixing the mixture with an additional solid electrolyte in a wet state, and adding a conductive agent and performing mixing in a wet state at the time of manufacturing the positive electrode mixture for all-solid-state batteries and a positive electrode mixture for all-solid-state batteries manufactured using the same.

Method of manufacturing positive electrode mixture for all-solid-state batteries and positive electrode mixture for all-solid-state batteries manufactured using the same

The present invention relates to a device and method which can measure, in real time, the resistance, depending on pressure changes, of a separator that is immersed in an electrolyte, and enables analysis of the resistance properties of a separator reflecting the real operating state of a secondary battery.

Device and method for measuring resistance of pressurized separator

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

A 3-dimensional (3D) pattern puncher for punching a lithium metal electrode to provide one or more unit electrodes is provided. The 3D pattern puncher includes a mold punch configured to move up and down, the mold punch corresponding to a size of the unit electrode; a die corresponding to the mold punch; a mold blade disposed at an edge of the mold punch and configured to punch the lithium metal electrode to provide the one or more unit electrodes; and a 3D pattern positioned at an inner portion of the mold punch where the mold blade is not disposed.

3D pattern cutting machine for lithium metal electrode

Provided are an electrode for a secondary battery and a manufacturing method thereof. According to the present invention, a secondary battery, which has high capacity and is also able to get an excellent evaluation in a nail penetration test so that stability is ensured, may be manufactured. In order to accomplish the above objectives, the present invention provides an electrode for a secondary battery which includes an electrode current collector; a first electrode active material layer formed on the electrode current collector; and a second electrode active material layer formed on the first electrode active material layer, wherein a layer composed of the electrode current collector and the first electrode active material layer has a tensile strain of 1.2% or less.

Electrode for secondary battery and lithium secondary battery including same

A battery includes a folded bicell battery stack with an embedded fiber optic cable and sensor. A cell casing encloses the bicell stack with at least one fiber optic cable is embedded within the battery. The fiber optic cable includes an internal portion disposed within the cell casing and having at least one optical sensor disposed thereon. An external portion of the fiber optic cable protrudes from the casing. A sealing gasket is disposed at least partially around the fiber optic cable and between the cell sealing edges at a point of entry of the fiber optic cable into the battery.

Embedded fiber optic cables for battery management

Disclosed are an electrode active material having improved energy density and a lithium secondary battery including the same. More particularly, provided is an electrode active material including a first electrode active material and a second electrode active material, each of the first electrode active material and the second electrode active material having a composition represented by Formula (1) below, a ratio of lithium to metals in the first electrode active material being 1.4 to 1.7, and a ratio of lithium to metals in the second electrode active material being 1.2 or more and less than 1.4:(1&#x2212;)LiM'OALiMnOA&#x2003;&#x2003;(1)

Electrode active material having improved energy density and lithium secondary battery including the same

Disclosed herein is a method of manufacturing a secondary battery electrode containing a positive temperature coefficient (PTC) material, the method including (a) applying first slurry including a first mixture and a solvent mixed with each other to one surface of a planar current collector to generate a PTC material after drying, (b) applying second slurry including a second mixture, including an electrode active material, and a solvent mixed with each other to the first slurry applied to the current collector, which is in a non-dried state, and (c) drying the first slurry and the second slurry applied to the current collector.

Method of manufacturing secondary battery electrode containing PTC material and electrode manufactured thereby

Disclosed are a secondary battery comprising a negative electrode composed of two or more negative electrode plates and a method of manufacturing the secondary battery, wherein each of the negative electrode plates includes a lithium by-product layer formed through pre-lithiation reaction on a negative electrode current collector coated with a negative electrode active material, wherein an inorganic substance layer is formed on a negative electrode tab that is extended from an end at one side of the negative electrode current collector and is composed of an active material-non-coated portion not coated with the negative electrode active material, and negative electrode tabs of the negative electrode plates are electrically connected with one negative electrode lead to form a negative electrode terminal.

Secondary battery including high-capacity negative electrode and method of manufacturing the same

Disclosed is a battery cell having an electrode assembly that is sealed with an electrolyte solution within a battery case, the electrode assembly including one or more positive electrodes to which a positive electrode terminal is connected; one or more first negative electrodes to which a first negative electrode terminal is connected; one or more second negative electrodes to which a second negative electrode terminal is connected; and a separator disposed between the positive electrode and the first negative electrode or second negative electrode, or a separator disposed between the positive electrode and the first negative electrode or second negative electrode and a separator disposed between the first negative electrode and the second negative electrode.

Negative electrode for preventing deposition of manganese and battery cell including the same

Disclosed is a negative electrode active material for secondary batteries having improved lifespan characteristics. In particular, provided is a negative electrode active material, for secondary batteries, including silicon (Si), and amorphous hard carbon or low-crystalline soft carbon.

Negative electrode active material for secondary batteries having improved lifespan characteristics

Disclosed is a method of manufacturing a lithium secondary battery including a positive electrode active material, wherein the positive electrode active material includes one or more lithium transition metal oxides selected from compounds represented by Formula 1 defined in claim, and activation of the lithium secondary battery is conducted while changing charge/discharge voltage ranges and number of cycles depending on doping amount of Min Formula 1.

Method of manufacturing lithium secondary battery and lithium secondary battery manufactured by the same

Disclosed herein are a positive electrode active material including at least one selected from among compounds represented by Formula 1 below and a lithium secondary battery including the same that is capable of improving lifetime characteristics and rate characteristics while exhibiting excellent safety: Li[LiMM']OA(1), where M is at least one element selected from a group consisting of Ru, Mo, Nb, Te, Re, Ir, Pt, Cr, S, W, Os, and Po, M&#x2032; is at least one element selected from a group consisting of Ni, Ti, Co, Al, Mn, Fe, Mg, B, Cr, Zr, Zn, and second row transition metals, A is a negative monovalent or divalent anion, and 0&#x3c;x&#x3c;0.3, 0.2&#x2264;y&#x2264;0.5, 0&#x2264;z&#x3c;0.5, and 0.2&#x3c;x+y&#x3c;0.8.

Positive electrode active material and lithium secondary battery including the same

Disclosed is a secondary battery to which an electrolyte can be additionally supplied. More particularly, provided is a secondary battery including an electrode assembly that includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode, and a porous elastic body that can contain an electrolyte, which are installed in a battery case.

Secondary battery to which electrolyte can be additionally supplied

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Daejeon, South Korea

Hoe Jin Hah