Samsung Sdi Co., Inc.

Postech Academy-Industry Foundation

Sejong University

Postech Research and Business Development Foundation

Jungmin Han

Kihyun Kim

Hoon Bae Kim

Hoon Sik Kim

Hyunbong Choi

Soojin Kim

Jin-Hyeok Lim

Aeran Kim

Myunghwan Jeong

Pavel Shatunov

Junyong Lee

Tae Jin Lee

Olga Tsay

Dongyoung Kim

Wonseok Cho

Jeongmin Shin

Suyeol Ryu

Younghye Kang

Minsang Song

Jeongdoo Yi

Sangil Han

Younggyoon Ryu

Injun Park

Hyejeong Jeong

Kyulin Lee

Dongrak Sohn

Jaeho Choi

Jinhee Lee

Ming-Zi Hong

Yongchan You

Jaeho Lee

Moon Jeong Park

Yunchae Jung

Keesun Sohn

Sunggeun Shim

Minjin Song

Haneol Kang

Jaehong Lim

The present invention relates to: an electrolyte for a rechargeable lithium battery, the electrolyte including a non-aqueous organic solvent, a lithium salt, and an electrolyte additive for a rechargeable lithium battery, the electrolyte additive including a compound represented by Chemical Formula 1; and a rechargeable lithium battery comprising the electrolyte for a rechargeable lithium battery. Chemical Formula 1 is as defined in the specification.

Electrolyte for rechargeable lithium battery and rechargeable lithium battery comprising same

Provided is an electrolyte for a lithium secondary battery, the electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a compound represented by Chemical Formula 1. The definitions of each of the substituents in Chemical Formula 1 are as set forth in the detailed description.

Electrolyte for lithium secondary battery and lithium secondary battery comprising same

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

Provided is an electrolyte solution for a lithium secondary battery, the electrolyte solution comprising a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a compound represented by Chemical Formula 1. The contents of Chemical Formula 1 are the same as described in the specification.

Electrolyte solution for lithium secondary battery and lithium secondary battery comprising same

An additive, an electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery, the additive being represented by Chemical Formula 1:

Additive, electrolyte for rechargeable lithium battery, and rechargeable lithium battery

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

An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the electrolyte, the electrolyte including a non-aqueous organic solvent; a lithium salt; and an additive, wherein the additive includes a compound represented by Chemical Formula 1:

Electrolyte for rechargeable lithium battery and rechargeable lithium battery

Provided are a cathode active material for a lithium secondary battery, a method for preparing the same, and a lithium secondary battery comprising the same. The cathode active material for a lithium secondary battery comprises: a lithium metal compound; and a lithium compound disposed on the surface of the lithium metal compound, wherein the content of lithium contained in the lithium compound is 0.25 parts by weight or less with respect to 100 parts by weight of the lithium metal compound, wherein the specific surface area of the lithium compound is between 0.5 m/g and 2.0 m/g, and the pH of the lithium compound is between 11.5 and 12.3.

Cathode active material for lithium secondary battery, method for preparing same, and lithium secondary battery comprising same

An additive represented by Chemical Formula 1, an electrolyte for a rechargeable lithium battery including the same, and a rechargeable lithium battery,

Additive, electrolyte for rechargeable lithium battery, and rechargeable lithium battery including the same

Disclosed are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. The positive electrode includes a current collector and a positive electrode layer on the current collector, the positive electrode layer including a nickel-based positive active material of Chemical Formula 1 having a BET specific surface area of about 0.5 m/g to about 2.5 m/g, a metal fluoride, a conductive material, and a binder, wherein an amount of the metal fluoride is about 1 wt % to about 10 wt % based on 100 wt % of the positive electrode layer. In Chemical Formula 1, 0.9&#x2264;a&#x2264;1.1, 0.8&#x2264;x&#x2264;0.98, 0.01&#x2264;y&#x2264;0.01&#x2264;z&#x2264;0.1, x+y+z=1, and A is Mn or Al.LiNiCoAO&#x2003;&#x2003;Chemical Formula 1

Positive electrode for rechargeable lithium battery and rechargeable lithium battery including same

An additive, an electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery, the additive being represented by Chemical Formula 1: 

Additive, electrolyte for rechargeable lithium battery and rechargeable lithium battery including the same

The present invention relates to a lithium secondary battery including an electrolyte including a non-aqueous organic solvent, a lithium salt and an additive comprising a compound represented by Chemical Formula 1; and a battery case in which the electrolyte is housed, wherein the battery case has a shape with a width (W), a height (H), and a thickness (Th), when a maximum value among the width (W), the height (H), and the thickness (Th) is a and a minimum value among the width (W), the height (H), and the thickness (Th) is b, b/a is 0.01 or more: 

Lithium secondary battery comprising electrolyte

The present invention relates to an electrolyte for a lithium secondary battery including an electrolyte, the electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive including a compound represented by Chemical Formula 1; and wherein an amount of the additive is 0.1 wt % to 10 wt % based on the total the electrolyte, and the lithium secondary battery has an energy density of 200 Wh/L or more: 

The present invention relates to a lithium secondary battery including a positive electrode including a positive active material, the positive active material including a nickel-containing lithium transition metal compound; a negative electrode including a negative active material; and an electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive comprising a compound represented by Chemical Formula 1, wherein the content of Ni is 60 mol % or more based on 100 mol % of the total transition metals in the lithium transition metal compound. 

Lithium secondary battery

The present invention relates to a lithium secondary battery including a positive electrode including a positive active material layer, the positive active material layer including a positive active material and a carbonaceous nanostructure; a negative electrode including a negative active material; and an electrolyte. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and an additive including a compound represented by Chemical Formula 1, wherein the amount of the carbonaceous nanostructure is about 0.5 wt % or more and less than 4 wt % based on 100 wt % of the total amount of the positive active material layer. 

Growing community of inventors

Yongin-si, South Korea

Jungmin Han