Samsung Sdi Co., Inc.

Daeseop Lim

Jinhyon Lee

Hyeri Eom

Bokhyun Ka

Kyeuyoon Sheem

Sangjun Lee

Ha-Dong Kim

Yoojin Song

Hyo-bin Bang

Hyejin Kwon

Hongjeong Kim

Ji-hoon Son

Hyo-Bin Bang

A rechargeable battery includes: a case accommodating an electrode assembly and having an opening; a cap assembly including a cap plate coupled to the case to cover the opening, and a terminal plate coupled to the cap plate; and a direction determining member covering the cap plate and coupled to the case to define an extended part.

Button cell comprising a direction determining member

The present invention relates a negative electrode for a lithium secondary battery, and a lithium secondary battery comprising same, wherein the negative electrode for a lithium secondary battery comprises a current collector, and a negative electrode active material layer including a first layer formed on the current collector and a second layer formed on the first layer, the first layer containing a first carbon-based negative electrode active material, and the second layer containing a second carbon-based negative electrode active material, wherein the degree of divergence (DD) value of the first layer is 30-90% of the DD value of the negative electrode active material layer, the DD value is defined by formula 1 below.DD (Degree of Divergence)=()*100  [Formula 1]

Negative electrode for lithium secondary battery and lithium secondary battery comprising same

The present invention relates an anode for a lithium secondary battery and a lithium secondary battery comprising same. The anode for a lithium secondary battery comprises a current collector; and an anode active material layer formed on the current collector and including a carbon-based anode active material, wherein the anode active material layer has a multi-layer structure of three or more layers and at least one layer of the anode active material layer is an oriented layer having a degree of divergence (DD) of 19 or greater, the DD being defined by the following formula 1:Degree of Divergence (DD)=()*100  [formula 1](In formula 1,

Anode for lithium secondary battery and lithium secondary battery comprising same

Button cell

An electrode assembly including a separator between a positive electrode and a negative electrode. Each of the positive electrode and the negative electrode includes a base member and an active material layer at at least one side of the base member. The active material layer of the negative electrode includes an alternating arrangement of orientation portions and non-orientation portions. Each of the orientation portions is oriented to have a constant angle with respect to one side of the negative electrode.

Electrode assembly and rechargeable battery including the same

Disclosed are a negative electrode for a rechargeable battery and a rechargeable battery including the same. The negative electrode for a rechargeable battery according to an exemplary embodiment of the present invention includes a substrate and an active material layer including graphite formed on at least one surface of the substrate, wherein the active material layer includes an internal layer relatively adjacent to the substrate and a surface layer relatively away from the substrate and the internal layer and the surface layer have a degree of divergence (DD) defined by Equation 1 below, and the DD value of the surface layer is 6% to 50% of the DD value of the internal layer.DD(Degree of Divergence)=()&#xd7;100&#x2003;&#x2003;[Equation 1] (Ia is a sum value of peak intensities appearing at a non-planar angle when XRD is measured using a CuK&#x3b1; line, and Itotal is a sum value of peak intensities appearing at every angle when XRD is measured using the CuK&#x3b1; line).

Negative electrode for rechargeable battery and rechargeable battery including the same

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Yongin-si, South Korea

Daeseop Lim