Samsung Electronics Co., Ltd.

Huisu Jeong

Hwiyeol Park

Jin Seong Heo

Kyounghwan Kim

Sungjin Lim

Hojung Yang

Junhyeong Lee

Jeongkuk Shon

Kyunghoon Cho

Seunghoon Nam

Dongmin Im

Heungchan Lee

Hyunchul Lee

Jaemyung Lee

Joungwon Park

Hyunjin Kim

Wonsung Choi

Wooyoung Yang

Kyounghwan Choi

Mokwon Kim

Jinseok Heo

Youngeal Kim

Samuel Robert Cross

Jinsuck Heo

JinS Heo

Jin Heo S

An electrode for a secondary battery includes a current collector; and an active material structure on the current collector, the activate material structure including: at least one first high-density layer, and at least one second high-density layer, the at least one second high-density layer being further away from the current collector as compared to the at least one first high-density layer; and a low-density layer between the at least one first high-density layer and the at least one second high-density layer, wherein a thickness of the at least one second high-density layer is greater than a thickness of the at least one first high-density layer.

Electrode structure for secondary battery, method of manufacturing the same, and secondary battery comprising the same

An electrode structure, a positive electrode and an electrochemical device including the same, and a method of preparing the electrode structure. The electrode structure includes a current collector; and an electrode active material layer on a surface of the current collector, wherein the electrode active material layer includes an electrode active material and an opening penetrating through the electrode active material layer; and a conductive layer comprising a conductive material and a binder on an inner surface of the opening, and wherein the content of the conductive material and the binder is 0.05% to 3% by weight on the basis of the total weight of the electrode active material layer.

Electrode structure, positive electrode and electrochemical device including the same, and method of preparing the electrode structure

An active material structure includes first active material lines arranged in a first direction, second active material lines arranged in a second direction intersecting the first direction, and intermediate active material lines between the first active material lines and the second active material lines in a third direction intersecting the first direction and the second direction, the intermediate active material lines provided in overlapping regions of the first active material lines and the second active material lines, wherein the upper active material lines and the second active material lines are electrically connected by the intermediate active material lines.

Active material structure, electrode structure including the same, secondary battery including the same, and method of fabricating the same

A battery includes a cathode layer, a cathode current collector on the cathode layer, an anode layer on the cathode layer, an anode current collector on the anode layer, a separator between the cathode layer and the anode layer, and an electrolyte, wherein the cathode layer includes a plurality of crystal grains of a cathode active material and aligned in a first direction, and at least one groove formed in a direction perpendicular to an upper surface of the cathode layer that is in contact with the separator, and wherein a side surface of the cathode layer exposed by the at least one groove is aligned with a <101> crystal direction, a <hk0> crystal direction, wherein h and k are integers greater than or equal to 1, or a combination thereof, of the crystal grains of the cathode active material.

Battery and method of manufacturing the same

An electrode structure includes a base layer including a first active material, and a plurality of active material plates on a first surface of the base layer and spaced apart from one another, the plurality of active material plates including a second active material. An active material density of the base layer is less than an active material density of an active material plate of the plurality of active material plates.

Electrode structure and method of manufacturing the same, and secondary battery including the electrode structure

A secondary battery includes a negative electrode; a positive electrode including a plurality of positive electrode plates spaced apart from each other in a width direction, wherein a positive electrode plate of the plurality of positive electrode plates has a planar shape, and a channel between the plurality of positive electrode plates; an electrolyte material disposed in the channel between the plurality of positive electrode plates; a separation membrane between the negative electrode and the positive electrode; and a first metal layer disposed on a surface of the separation membrane facing the positive electrode.

Secondary battery

A conductive array, a composite membrane including the conductive array, a lithium battery, and a method of manufacturing the conductive array. The conductive array includes a plurality of ion conductive inorganic particles spaced apart from each other, wherein the circumferences (x) and the width (y) of a top surface of an ion conductive inorganic particle of the plurality of ion conductive inorganic particles in plan view satisfy Inequality (1),≥3.2, and  Inequality (1)a distance between a first ion conductive inorganic particle of the plurality of ion conductive inorganic particles and an adjacent second ion conductive inorganic particle in a plan view is 0% to about 20% of the width of the surface of the ion conductive inorganic particle.

Conductive array, composite membrane including the conductive array, lithium battery including the composite membrane, and method of manufacturing the conductive array

A metal metal-air battery includes: an anode layer including a metal, a cathode layer spaced apart from the anode layer and including a hybrid conductive material having both electron conductivity and ionic conductivity; and a separator disposed between the anode layer and the cathode layer, wherein the hybrid conductive material includes a channel for metal ion transfer from the anode layer and a channel for electron transfer between the cathode and the anode.

Metal-air battery

An electrode structure includes: a base layer including a first active material; a plurality of active material plates, a plate of the plurality of active material plates including opposing side walls and a lower wall, wherein the lower wall is disposed on the base layer, wherein adjacent plates of the plurality of active material plates are spaced apart from each other, and wherein an active material plate of the plurality of active material plates includes a second active material; and a channel between adjacent plates of the plurality of active material plates, wherein the channel includes a first channel region defined by adjacent side walls of the adjacent plates, and a second channel region connected to the first channel region and defined by a lower wall of the adjacent plates and the base layer.

Electrode structure, method of manufacturing the electrode structure, and secondary battery including the electrode structure

A battery includes a cathode layer, a cathode current collector on the cathode layer, an anode layer on the cathode layer, an anode current collector on the anode layer, a separator between the cathode layer and the anode layer, and an electrolyte, wherein the cathode layer includes a plurality of crystal grains of a cathode active material and aligned in a first direction, and at least one groove formed in a direction perpendicular to an upper surface of the cathode layer that is in contact with the separator, and wherein a side surface of the cathode layer exposed by the at least one groove is aligned with a &#x3c;101&#x3e; crystal direction, a &#x3c;hk0&#x3e; crystal direction, wherein h and k are integers greater than or equal to 1, or a combination thereof, of the crystal grains of the cathode active material.

A solid electrolyte-cathode assembly including a plurality of cathode layers spaced apart from each other in a first direction, and an electrolyte layer including an amorphous solid electrolyte and a crystalline solid electrolyte including a plurality of crystalline solid electrolyte particles, wherein the amorphous solid electrolyte is on a surface of a cathode layer of the plurality of cathode layers and the crystalline solid electrolyte is within the amorphous solid electrolyte.

Secondary battery and method of manufacturing the secondary battery

A three-dimensional all-solid-state lithium ion batteries including a cathode protection layer, the battery including: a cathode including a plurality of plates which are vertically disposed on a cathode current collector; a cathode protection layer disposed on a surfaces of the cathode and the cathode current collector; a solid state electrolyte layer disposed on the cathode protection layer; an anode disposed on the solid state electrolyte layer; and an anode current collector disposed on the anode, wherein the cathode protection layer is between the cathode and the solid state electrolyte layer, and wherein the solid state electrolyte layer is between the cathode protection layer and the anode.

Three dimensional all-solid-state lithium ion battery and method of fabricating the same

An electrochemical device including a positive electrode current collector; a first protruding portion including a plurality of positive electrodes in electrical contact with the positive electrode current collector, and a first dented portion disposed between each positive electrode of the plurality of positive electrodes; an electrolyte layer including a second protruding portion and a second dented portion respectively disposed on the first protruding portion including the plurality of positive electrodes and the first dented portion disposed between each positive electrode of the plurality of positive electrodes; and a negative electrode current collector layer including a third protruding portion and a third dented portion respectively disposed on the second protruding portion and the second dented portion of the electrolyte layer.

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Suwon-si, South Korea

Huisu Jeong