Samsung Sdi Co., Inc.

Tae-Hyun Bae

Woo-Cheol Shin

Sang-Il Han

Jung-Yi Yu

Myung-Hwan Jeong

Mi-Hyun Lee

Moon-Sung Kim

Pavel Shatunov

Denis Chernyshov

Alexey Tereshchenko

Sang-Hoon Kim

Eon-Mi Lee

Vladimir Egorov

Makhmut Khasanov

In-Haeng Cho

Seung-Tae Lee

Duck-Hyun Kim

Ha-Rim Lee

E-Rang Cho

Dong-Myung Choi

Byung-Joo Chung

Jung-Hyun Nam

Sang-Geun Kim

Myung-Hoon Kim

Soo-Ho Park

Dong-gun Moon

Myun-Gi Shim

Min-Ju Lee

Boris Aleksandrovich Trofimov

Nina K Gusarova

Ae-Ran Kim

Myun-gi Shim

Pavel Alexandrovich Shatunov

Alexey Tereshenko

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

A rechargeable lithium battery includes a negative electrode including a negative active material including a Si-based material, a positive electrode, and an electrolyte including a lithium salt, an organic solvent, and an additive including lithium triflate and fluoroethylene carbonate. Embodiments of the rechargeable lithium battery have excellent irreversible characteristics and cycle-life characteristics.

Rechargeable lithium battery

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

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

In one aspect, a rechargeable lithium battery comprising a non-aqueous electrolyte including an organic solvent; a lithium salt and a substituted 2-fluoroalkoxy-1,3,2-dioxaphospholane 2-oxide is provided. The 2-fluoroalkoxy-1,3,2-dioxaphospholane 2-oxide can be a compound represented by the following Chemical Formula 1. 

Electrolyte for rechargeable lithium battery and rechargeable lithium battery comprising same

A separator for a rechargeable lithium battery including a tungsten-doped vanadium oxide (VO) phase transition material and the rechargeable lithium battery including the separator. Here, an explosion possibility of the rechargeable lithium battery including the separator may be prevented and delayed when the battery is excessively heated.

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

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

An electrode for a lithium secondary battery, including a surface having surface roughness of about 800 nm to about 1000 nm, and a lithium secondary battery including the same. In one embodiment, the lithium secondary battery has improved cycle-life characteristics.

Electrode for lithium secondary battery and lithium secondary battery including same

A thermochromic smart window and a method of manufacturing the thermochromic smart window including a glass and a thermochromic layer including a vanadium dioxide material formed on the glass. A thermochromic smart window includes a substrate and a thermochromic layer disposed on the substrate, wherein a slope of a graph of a reflectance of the thermochromic layer is at or between 1 and 2%/&#xb0; C. at a threshold temperature.

Growing community of inventors

Yongin-si, South Korea

Tae-Hyun Bae