Samsung Sdi Co., Inc.

Myung-Hwan Jeong

Sang-Il Han

Woo-Cheol Shin

Tae-Hyun Bae

Jung-Yi Yu

Jong-Seo Choi

Jae-Hyuk Kim

Chang-Ui Jeong

Sung-Hwan Moon

Hee-Young Chu

Moon-Sung Kim

Mi-Hyun Lee

Sang-Hoon Kim

Pavel Shatunov

Eon-Mi Lee

Makhmut Khasanov

In-Haeng Cho

Vladimir Egorov

Duck-Hyun Kim

Alexey Tereshchenko

Denis Chernyshov

Ha-Rim Lee

Seung-Tae Lee

E-Rang Cho

Dong-Myung Choi

Byung-Joo Chung

Jung-Hyun Nam

Sang-Geun Kim

Yury Matulevich

Myung-Hoon Kim

Yuri Matulevich

Min-Ju Lee

Matulevich Yuri

Oleg Leonidovith Andreev

Leonidovith Andreev Oleg

Pavel Alexandrovich Shatunov

Alexey Tereshenko

A positive active material for a rechargeable lithium battery includes a positive active material compound including a metal compound for intercalating and deintercalating lithium, a coating particle having an embedded portion embedded into the active material compound and a protruding portion protruding from the surface of the active material, and a rechargeable lithium battery including the positive active material.

Positive active material for rechargeable lithium battery, method of manufacturing the same and rechargeable lithium battery using the same

An electrode active material for a lithium secondary battery, a method of preparing the electrode active material, an electrode for a lithium secondary battery which includes the same, a lithium secondary battery using the electrode. The electrode active material includes a core active material and a coating layer including magnesium aluminum oxide (MgAlO) and formed on the core active material. 1s binding energy peaks of oxygen (O) in the electrode active material measured by x-ray photoelectron spectroscopy (XPS) are shown at positions corresponding to 529.4&#xb1;0.5 eV, about 530.7 eV, and 531.9&#xb1;0.5 eV, and a peak intensity at the position corresponding to 529.4&#xb1;0.5 eV is stronger than a peak intensity at the position corresponding to about 530.7 eV.

Electrode active material for lithium secondary battery, method of preparing the electrode active material, electrode for lithium secondary battery including the same, and lithium secondary battery using the same

In an aspect, a rechargeable lithium battery that includes a positive electrode including a composite positive active material; a negative electrode including a carbon-based negative active material; an electrolyte including an additive, and a lithium salt and an organic solvent, wherein a passivation film may be on a surface of the negative electrode of the rechargeable lithium battery.

Rechargeable lithium battery and negative electrode for same

In an aspect, a rechargeable lithium battery that includes a positive electrode; negative electrode; a separator interposed between the positive electrode and the negative electrode and including a porous substrate and a coating layer formed on at least one side of the porous substrate; and an electrolyte including a lithium salt, a non-aqueous organic solvent, and an additive is provided.

Rechargeable lithium battery and method of fabricating same

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

Electrolyte and rechargeable lithium battery including same

An organic electrolyte solution and a lithium battery using the same are disclosed. The organic electrolyte solution includes a lithium salt, an organic solution, a thiophene-based compound and a nitrile-based compound.

Organic electrolyte solution including thiophene-based compound and nitrile-based compound and lithium battery comprising the same

An additive, the additive being for an electrolyte for a lithium secondary battery and represented by Chemical Formula 1: Rto Reach independently being hydrogen or a non-polar hydrocarbon group, is disclosed. An electrolyte, the electrolyte being for a lithium secondary battery and including: a non-aqueous organic solvent; a lithium salt; and the additive is also disclosed. A lithium secondary battery including: a positive electrode; a negative electrode facing the positive electrode; and a separator between the positive electrode and the negative electrode, the separator being impregnated with an electrolyte including the additive, is also disclosed.

Additive for electrolyte and electrolyte and lithium secondary battery

Disclosed is a solid electrolyte including particles comprising LiTiAl(PO)(0&#x2266;x&#x2266;1) having a true density of about 2.20 to about 2.50 g/cm.

Solid electrolyte, method for preparing same, and rechargeable lithium battery comprising solid electrolyte and solid electrolyte particles

Rechargeable lithium battery and method of fabricating the same

Disclosed is an electrolyte for a rechargeable lithium battery including an organic solvent; a lithium salt; a flame retardant; and at least one acrylate compound having a fluorinated alkyl group. The electrolyte for a rechargeable battery may provide a rechargeable lithium battery having flame-retardant characteristics without decrease of cycle-life and battery performance.

Electrolytes for rechargeable lithium battery and rechargeable lithium battery comprising same

An electrolyte additive represented by the following Chemical Formula 1, an electrolyte, and a rechargeable lithium battery are disclosed: In Chemical Formula 1, Rto Rand Lto Lare the same as defined in the detailed description.

Additive for electrolyte and electrolyte and rechargeable lithium battery

An electrolyte for a rechargeable lithium battery that includes a lithium salt and a non-aqueous organic solvent, wherein the non-aqueous organic solvent includes a fluoro-based solvent represented by the following Chemical Formula 1, and a rechargeable lithium battery including the same.R&#x2014;O&#x2014;R'&#x2003;&#x2003;Chemical Formula 1In Chemical Formula 1, R and R&#x2032; are independently a substituted or unsubstituted C1 to C6 alkyl group, or a substituted or unsubstituted C1 to C6 fluoroalkyl group, wherein at least one of R and R&#x2032; is the substituted or unsubstituted C1 to C6 fluoroalkyl group, and a substitution ratio of fluoro in the fluoro-based solvent represented by the Chemical Formula 1 may range from more than about 0% to less than or equal to about 50%.

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

A positive active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery using the same, the positive active material including a secondary particle formed of a plurality of primary particles, the primary particles being made of a metal compound capable of intercalating/deintercalating lithium; and a coating layer on a surface of the secondary particle in an island arrangement, the coating layer including a metal oxide, wherein the secondary particle includes pores formed by the primary particles, the pores including a surface pore on the surface of the secondary particle and an internal pore inside the secondary particle, and the metal oxide of the coating layer fills a portion of the surface pore of the secondary particle.

Disclosed is a separator having surface energy of about 45 mN to about 50 mN/m which can be prepared by radiating plasma on a polymer film under a current of from about 1800 mA to about 2000 mA and electric power of from about 2750 W to about 3000 W. Further disclosed is a rechargeable battery comprising the separator having a surface energy of about 45 mN to about 50 mN/m.

Separator for rechargeable lithium battery and rechargeable lithium battery including same

A solid electrolyte for a rechargeable lithium battery includes a compound represented by LiTiAlM(PO), and a glass-based oxide selected from LiPO, LiO&#x2014;BO, and combinations thereof. A rechargeable lithium battery includes the solid electrolyte.

Growing community of inventors

Yongin-si, South Korea

Myung-Hwan Jeong