Samsung Sdi Co., Inc.

Jea-Woan Lee

Seung-Hee Park

Joon-Sup Kim

Chung-Kun Cho

Duck-Chul Hwang

Jae-Yul Ryu

Wan-Uk Choi

Zin Min Park

Jong-Ki Lee

Young-Ugk Kim

Yun-suk Choi

Soo-Mi Eo

Jin-Hee Moon

Young-Kwang Cho

Chang-Keun Back

Yong-Bum Lee

Se-Ho Park

Ho-Jin Kweon

Sung-Soo Kim

Sung-soo Kim

Jun-Won Suh

Young-Gyoon Ryu

Sang-mock Lee

Yong-beom Lee

Nam-Soon Choi

Tae-Gon Kim

Yong-Beom Lee

Ki-Ho Kim

Jae-gu Yoon

Ji-Seong Han

Kyoung-Han Yew

Tae-gon Kim

Yoshiaki Nitta

In-Seop Byun

Min-seuk Kim

Jong-ki Lee

Se-jong Han

Sang-Mock Lee

Byoung-Hyun Kang

Chan Hong

Yi-Seop Ahn

Su-Suk Choi

Duck-chul Hwang

Hee-Joon Chun

Hisaki Tarui

Young-Chang Lim

Yu-Mi Ha

Hye-won Kim

Seung-Sik Hwang

In-sung Lee

Byung-Hyun Kang

Se-Jong Han

In-Sung Lee

Chang-Kuen Back

A rechargeable battery includes: an electrode assembly including a separator between a first electrode and a second electrode each having uncoated regions and coated regions, and in which the separator, the first electrode, and the second electrode are spirally wound; a case that houses the electrode assembly; and a first electrode tab and a second electrode tab to be drawn outside of the case that are respectively coupled to the uncoated regions of the first electrode and the second electrode while maintaining a tab gap between the first electrode tab and the second electrode tab, where the first electrode tab is coupled to a gap uncoated region between the coated regions of the first electrode, and where in a thickness direction of the electrode assembly, in an area facing the first electrode tab, an internal side end uncoated region of the second electrode is located.

Rechargeable battery

A rechargeable battery includes a wound electrode assembly including a separator between a first electrode and a second electrode, the first and second electrodes each including uncoated regions and coated regions; a case accommodating the electrode assembly; and a first electrode terminal and a second electrode terminal respectively coupled to the first and second electrodes and extending from the case, an uncoated region of the first electrode including inner and outer uncoated regions of a terminal end portion located at an outermost side of the electrode assembly, and the second electrode including an outer uncoated region of a terminal end portion facing the inner uncoated region of the first electrode and an additional inner coated region at an opposite side of the outer uncoated region.

Rechargeable battery comprising first and second electrodes each comprising uncoated regions and coated regions

Disclosed is a rechargeable lithium battery that includes a positive electrode including a lithium nickel-based positive active material; a negative electrode including a negative active material; an electrolyte including a lithium salt and a non-aqueous organic solvent; and a separator including a polymer substrate and a hydroxide compound-containing coating layer disposed on the polymer substrate.

Rechargeable lithium battery

A rechargeable lithium battery including an electrode assembly having a positive electrode including a positive current collector partially coated with a positive active material to form a positive coated region and a positive uncoated region, a negative electrode including a negative current collector partially coated with a negative active material to form a negative coated region and a negative uncoated region and a separator between the positive electrode and the negative electrode. The electrode assembly is spirally wound a plurality of times with the positive uncoated region and the negative uncoated region together forming a core central to the spirally-wound electrode assembly and wound from 3 to 15 times.

Rechargeable battery with an electrode assembly having a polymer region

A lithium secondary battery includes a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a current collector, an active material layer on the current collector and including an amorphous silicon oxide represented by SiO(0.95&#x3c;x&#x3c;1.7), and an SEI layer on the active material layer and including about 70 area % or more of protrusion parts having a size of about 5 nm to 300 nm during charging of the battery.

Lithium secondary battery

A negative active material of a negative electrode of a rechargeable lithium battery, the negative active material including a metallic active material core and a polymer, having a tensile strength of at least 40 MPa, coated on particles of the metallic active material. The polymer controls the volumetric expansion of the negative active material and enhances the cycle-life characteristics of the battery.

Negative active material for rechargeable lithium battery, and negative electrode for rechargeable lithium battery, and rechargeable lithium battery including same

Disclosed is a lithium secondary battery including a positive electrode including a positive active material; a negative electrode including a negative active material; a separator interposed between the positive and negative electrodes; and an electrolyte, where an alkaline metal powder layer is formed by dispersion coating on a surface of at least one of the positive and negative electrodes and the separator.

Electrode assembly for a rechargeable lithium battery

Disclosed is a rechargeable lithium ion battery including a positive electrode comprising a first current collector and a positive active material layer on the first current collector; a negative electrode comprising a second current collector and a negative active material layer on the second current collector; and an electrolyte comprising a non-aqueous organic solvent and a lithium salt. At least one of the first and the second current collectors includes a rigid polymer film with a metal deposited on the rigid polymer film.

Rechargeable lithium ion battery

Disclosed is a negative electrode for a lithium sulfur battery. The negative electrode includes a lithium metal, a pre-treatment layer, and a protection layer for the lithium metal. The pre-treatment layer has a thickness of 50 to 5000 &#x212b; and includes a lithium ion conductive material with an ionic conductivity of at least 1&#xd7;10S/cm.

Negative electrode for lithium sulfur battery, method of preparing same and lithium sulfur battery comprising same

The present invention relates to a positive active material for a lithium-sulfur battery and a method of preparing a positive active material composition comprising the same, and the positive active material includes a sulfur compound, a conductive agent adhered to the sulfur compound, and a binder including at least one polymer, which is positioned between the sulfur compound and the conductive agent to bind the conductive agent to the sulfur compound. The capacity per active mass weight of the positive active material increases by 25 to 35%, and the positive active material has improved discharge potentials and discharge capacity at high rate.

Positive active material and positive active material composition for lithium-sulfur battery and method of preparing positive active material composition

A positive active material for a rechargeable lithium-sulfur battery includes a core of a sulfur compound and a surface-passivation layer formed on the core. The surface-passivation layer is made of a coating-element-included compound selected from the group consisting of a coating-element-included hydroxide, a coating-element-included oxyhydroxide, a coating-element-included oxycarbonate, a coating-element-included hydroxycarbonate, a mixture thereof.

Positive active material for rechargeable lithium-sulfur batteries and method of preparing same

A lithium secondary battery having a winding-type electrode assembly and a case accommodating the electrode assembly, and a method of manufacturing thereof. In the lithium secondary battery, ion-conductive polymer is contained in at least one of a hollow portion of the electrode assembly and an inner space of the case other than the hollow portion. The hollow portion and/or the inner space of the case of the electrode assembly is filled with ion-conductive polymer which can consume the heat generated in the battery and which is changed into a gel-state by an electrolytic solution, to dissipate the heat generated in the battery. Accordingly, the explosion of the battery can be suppressed, thereby preventing the reliability and safety of the battery from lowering.

Lithium secondary battery and method of manufacturing thereof

Growing community of inventors

Yongin-si, South Korea

Jea-Woan Lee