Samsung Sdi Co., Inc.

Sejong University

Jeongdoo Yi

Jungyup Yang

Hyeri Eom

Juhee Sohn

Junwon Suh

Juhyeong Han

Seokhun Hong

Sol Choi

Hyunhwa Song

Da-Un Han

Jandee Kim

Junggyu Nam

Wonkyu Bang

Bong-Kyoung Park

Seungjae Lee

Jungmin Han

Minsang Song

Sangil Han

Sunil Park

Younggyoon Ryu

Bongkyoung Park

Donghyun Shin

Kyulin Lee

Daun Han

Taesoo Lee

Dongrak Sohn

Jinhee Lee

Soojin Kim

Yongbeom Lee

Yunchae Jung

Sangjae Park

Keesun Sohn

Sunggeun Shim

Minjin Song

A sulfide solid electrolyte for an all-solid secondary battery includes lithium, phosphorus, sulfur, oxygen, and halogen atoms, wherein the sulfide solid electrolyte has an argyrodite-type crystal structure, the halogen atoms includes chlorine and at least two of bromine, iodine, and fluorine, an atomic ratio of sulfur to oxygen in the sulfide solid electrolyte is about 4 or higher, and an atomic ratio of chlorine to the at least two of bromine, iodine, and fluorine is about 9 or higher.

Sulfide solid electrolyte for all-solid secondary battery, method of preparing the same, and all-solid secondary battery including the same

A sulfide solid electrolyte for all-solid secondary batteries, a method of preparing the same, and an all-solid secondary battery, the sulfide solid electrolyte including lithium, phosphorus, sulfur, and a halogen, wherein: the sulfide solid electrolyte has an argyrodite-type crystal structure, a ratio (I/Iratio) of a peak intensity at a 2θ of 29±0.1° to a peak intensity at a 2θ of 30±0.1° is 0.06 or less, the peak intensities being obtained by X-ray diffraction analysis of the sulfide solid electrolyte, and a ratio (I/Iratio) of a peak intensity at a 2θ of 27.1±0.1° to a peak intensity at a 2θ of 30±0.1° is 0.06 or less, the peak intensities being obtained by X-ray diffraction analysis of the sulfide solid electrolyte.

Sulfide solid electrolyte for all-solid secondary battery, method of preparing same, and all-solid secondary battery including the same

Provided is a stacked electrode assembly including: a lowermost electrode arranged on a lowermost portion of the stacked electrode assembly; an uppermost electrode arranged on an uppermost portion of the stacked electrode assembly; at least one unit stacked body arranged between the lowermost electrode and the uppermost electrode and including a positive electrode, a negative electrode, and a separator, the separator being arranged between the positive electrode and the negative electrode; and a separator arranged between the lowermost electrode and the at least one unit stacked body, and between the at least one unit stacked body and the uppermost electrode. A capacity and energy density of a lithium battery may be improved by employing an electrode including a mesh electrode current collector as the lowermost electrode or the uppermost electrode of the stacked electrode assembly.

Electrode assembly and lithium battery comprising same

The present invention relates to an electrolyte for a rechargeable lithium, battery and a rechargeable lithium battery including same, wherein the electrolyte for a rechargeable lithium battery may comprise: a non-aqueous organic solvent, a lithium salt, a first additive containing a compound represented by chemical formula 1, and a second additive containing a magnesium salt.

Electrolyte for rechargeable lithium battery and rechargeable lithium battery including same

The present disclosure relates to a rechargeable battery including an electrode assembly that includes a first electrode, a second electrode, and a separator disposed between the first electrode and the second electrode, a first electrode tab that is electrically connected with the first electrode, and includes at least one first bent portion, a second electrode tab that is electrically connected with the second electrode, and includes at least one second bent portion, and exterior member that receives the electrode assembly, and a reinforcement member that is disposed in the first exterior member, while being disposed adjacent to at least one of the first electrode tab and the second electrode tab.

Rechargeable battery

Disclosed are an outer case for a secondary battery, and a secondary battery including the same, the outer case comprising: a first polymer resin layer; a second polymer resin layer positioned on a first surface of the first polymer resin layer, and having a first adhesive layer interposed therebetween so as to be attached thereto; and an inner resin layer positioned on a second surface of the first polymer resin layer, and having a second adhesive layer interposed therebetween so as to be attached thereto, wherein the first polymer resin layer and the second polymer resin layer respectively comprise a fluorine-containing resin.

Outer case for secondary battery, and secondary battery including same

The present disclosure relates to an outer case for a flexible rechargeable battery, including a first resin layer configured to include a first patterned area, a moisture barrier layer disposed on the first resin layer to include a second patterned area, a second resin layer disposed on the moisture barrier layer to include a third patterned area, and a stress relaxation layer configured to cover the third patterned area.

Outer case for flexible rechargeable battery and flexible rechargeable battery including same

The present disclosure relates to a stacked electrode assembly and a flexible rechargeable battery including the same, including a first electrode, a second electrode stacked on one surface or both surfaces of the first electrode, and a separator disposed between the first electrode and the second electrode, wherein the separator has a continuous sheet shape, is bent in a first direction to surround the first electrode and in a second direction as an opposite direction to the first direction to surround the second electrode, and a bending end region of the separator includes a plurality of patterns.

Stacked electrode assembly and flexible rechargeable battery comprising the same

The present disclosure relates to a sheath material for secondary battery including a moisture permeation preventing layer, a protective layer disposed on the first surface of the moisture permeation preventing layer wherein the protective layer includes a functional layer having a plurality of patterns and a resin layer disposed on the second surface of the moisture permeation preventing layer, and a secondary battery including the same.

Sheath material for secondary battery and secondary battery comprising same

The present disclosure relates to a rechargeable battery including: an electrode assembly including a first electrode, a second electrode, and a separation layer interposed between the first electrode and the second electrode, a first electrode tab electrically connected to the first electrode, a second electrode tab electrically connected to the second electrode, and a first exterior member and a second exterior member receiving the electrode assembly and disposed to face each other, wherein at least one of the first exterior member and the second exterior member includes at least one of a first draw-out unit drawing out the first electrode tab and a second draw-out unit drawing out the second electrode tab, and a display device including the same.

Rechargeable battery and display device including the same

The present invention relates to a band assembly including a first outer connecting portion and a second outer connecting portion disposed to face each other, wherein the first outer connecting portion includes a first fastening hole and the second outer connecting portion includes a third fastening hole, an inner connecting portion disposed between the first outer connecting portion and the second outer connecting portion, wherein the inner connecting portion includes a second fastening hole that corresponds to the first fastening hole and the third fastening hole, and a rechargeable battery inserted into the first fastening hole, the second fastening hole, and the third fastening hole to connect the first outer connecting portion, the inner connecting portion, and the second outer connecting portion.

Band assembly

A flexible rechargeable battery includes a first conductive substrate, a second conductive substrate, and a seal. The first conductive substrate includes a first protrusion. The second conductive substrate faces the first conductive substrate and includes a second protrusion. The seal is located along at least one edge of the first conductive substrate and the second conductive substrate, and includes at least one sealing metal layer and at least one sealing resin layer.

Flexible rechargeable battery

A secondary battery including an electrode assembly; a first case that includes an electrode assembly accommodating space; and a second case that coupled to the first case, the second case facing the first case and having a convex-concave pattern.

Secondary battery

A pouch-type rechargeable battery according to one or more exemplary embodiments includes: an electrode assembly; an exterior material receiving the electrode assembly; and a sealing portion arranged at an edge of the exterior material, and including at least one metal particle and a resin surrounding the at least one metal particle, and an area ratio of the at least one metal particle and the resin in a cross-section of the sealing portion cut along a direction that is perpendicular to a lengthwise direction of the sealing portion is from 1:99 to 6:4.

Growing community of inventors

Yongin-si, South Korea

Jeongdoo Yi