Samsung Sdi Co., Inc.

Han-Eol Park

Do-Hyung Park

Min-Han Kim

Joong-Ho Moon

Ji-Hyun Kim

Seon-Young Kwon

Ming-Zi Hong

Kyoung-Hyun Kim

Ki-Hyun Kim

Jong-Seo Choi

Yu-Mi Song

Yong-Chan You

Chang-Wook Kim

Sun-Ho Kang

Myong-A Woo

Sang-Hoon Kim

Dong-Jin Kim

Chun-Gyoo Lee

Byung-Joo Chung

Ju-Hyeong Han

Jeong-Hoon Kim

Jeon-Jin Choi

Gyu-Ran Jeon

Jae-Myung Kim

Yoon-Chang Kim

Ji-hyun Kim

Jay-Hyok Song

Sang-In Park

Ha-Young Lee

A positive active material for a rechargeable lithium battery including a core including at least one selected from a nickel-based composite oxide represented by Chemical Formula 1 or a lithium manganese oxide represented by Chemical Formula 2; and a coating layer on a surface of the core and including a lithium metal oxide represented by Chemical Formula 3, the positive active material having a peak at a 2&#x3b8; value of about 19&#xb0; to about 22&#xb0; and another peak at a 2&#x3b8; value of about 40&#xb0; to about 45&#xb0; in an X-ray diffraction pattern using a CuK&#x3b1; ray, is disclosed. A method of preparing the same, and a rechargeable lithium battery including the same, are also disclosed.LiNiCoMnO&#x2003;&#x2003;Chemical Formula 1LiMnO&#x2003;&#x2003;Chemical Formula 2LiMO&#x2003;&#x2003;Chemical Formula 3 In Chemical Formulae 1 to 3, x, y, a, b, c, and M are the same as in the detailed description.

Positive active material for rechargeable lithium battery, method of preparing same, and rechargeable lithium battery including the same

An electron collector structure and a lithium battery including the same are disclosed. The electron collector structure includes a conductive thin film; and a graphene layer that is coated on the surface of the conductive thin film and may improve the electrical conductivity of an electrode plate. As an electrode of the lithium battery includes the electron collector structure, the electrical conductivity of the electrode may be increased so that the energy consumption properties as well as the lifespan characteristics of the lithium battery may be also improved.

Electron collector structure and lithium battery containing the same

A composite cathode active material includes a material capable of intercalating or deintercalating lithium; and a solid ion conductor. A cathode and a lithium battery each include the composite cathode active material. A method of preparing a composite cathode active material includes: mixing a core including a cathode active material and a solid ion conductor; and forming a coating layer including the solid ion conductor on the core utilizing a dry method.

Composite cathode active material, method of preparing the same, and cathode and lithium battery including the composite cathode active material

A composite cathode active material includes: a core including a material capable of intercalation and deintercalation of lithium; and a first coating layer on at least one portion of the core, where the first coating layer includes zirconium oxide. A lithium battery includes a cathode including the composite cathode active material. Methods of preparing the composite cathode active material are also disclosed.

Composite cathode active material, lithium battery including the same, and method of preparing the same

A composite cathode active material including a core comprising a lithium compound, and a coating layer formed on at least one portion of the core and including at least two oxide phases having different structures, a cathode and a lithium battery including the same, and a method of preparing the composite cathode active material.

Composite cathode active material, cathode and lithium battery comprising the same, and preparation method thereof

A positive active material for a rechargeable lithium battery includes a lithium composite metal oxide represented by Chemical Formula 1. A method of preparing the positive active material includes adding a lithium metal oxide represented by Chemical Formula 2 to a Zr salt-containing solution to obtain a mixed solution, drying the mixed solution to obtain a dried product, and heat-treating the dried product to prepare a lithium composite metal oxide represented by Chemical Formula 1. A rechargeable lithium battery includes a positive electrode including the positive active material.LiZrNiCoMZrO&#x2003;&#x2003;[Chemical Formula 1]

Positive active material for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same

A composite precursor represented by Formula 1, a composite prepared therefrom represented by Formula 2, a method of preparing a composite precursor and a composite, a positive electrode for lithium secondary battery including the same, and a lithium secondary battery employing the same.MnO-M(OH)&#x2003;&#x2003;Formula 1wherein in Formula 1, 0&#x3c;a&#x2266;0.8, 0.2&#x2266;b&#x3c;1and M is at least one metal selected from the group consisting of titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron, (Fe), cobalt (Co), nickel (Ni), copper (Cu), aluminum (Al), magnesium (Mg), zirconium (Zr), and boron (B)LiMnO-LiMO&#x2003;&#x2003;Formula 2wherein in Formula 2, 0&#x2266;a&#x2266;0.6, 0.4&#x2266;b&#x2266;11.0&#x2266;y&#x2266;1.05,and M is at least one metal selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Al, Mg, Zr, and B.

Composite precursor, composite prepared therefrom, a method of preparing a composite precursor and a composite, positive electrode for lithium secondary battery including the same, and lithium secondary battery employing the same

In one aspect, a composite cathode active material including at least one large-diameter active material, and at least one small-diameter active material, a cathode including the composite cathode active material and a lithium battery including the cathode is provided.

Composite cathode active material, and cathode and lithium battery each using the same

A rechargeable battery includes: a case; a first electrode assembly accommodated in the case; and second and third electrode assemblies accommodated in the case at positions adjacent to the case with the first electrode assembly being disposed therebetween. The second and third electrode assemblies have thicknesses different from that of the first electrode assembly.

Rechargeable battery

In an aspect, a positive active material for a rechargeable lithium battery that includes a lithium composite oxide including a Fe-containing compound phase and a Li-containing compound phase, a method of preparing the same, and a rechargeable lithium battery including the same are provided.

Positive active material for rechargeable lithium battery, method of preparing same, and rechargeable lithium battery including same

A positive active material for a rechargeable lithium battery includes a nickel-based composite oxide represented by the following Chemical Formula 1, wherein the nickel-based composite oxide includes an over lithiated oxide and non-continuous portions of a lithium nickel cobalt manganese oxide on a surface of the over lithiated oxide.LiNiCoMnO&#x2003;&#x2003;Chemical Formula 1

Provided is a positive electrode for a rechargeable lithium battery including a positive active material including a lithium phosphate compound particle and fiber-type carbon attached inside the lithium phosphate compound particle, a method of preparing the same, and a rechargeable lithium battery including the same.

Positive electrode for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same

A negative electrode for a lithium rechargeable battery includes a current collector, and a negative active material layer on the current collector, the negative active material layer including a silicon-based active material, a carbon-based active material, and an aqueous additive including an aqueous binder and an agent for increasing viscosity, the silicon-based active material being coated with an organic binder, wherein the aqueous additive is between portions of the silicon-based active material, between portions of the carbon-based active material, or between the silicon-based active material and the carbon-based active material.

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Yongin-si, South Korea

Han-Eol Park