Samsung Sdi Co., Inc.

Yuhyun Kim

Jungmin Lee

Ilkyong Kwon

Myungseop Kim

Kijun Kim

Junsik Lee

Youngsan Ko

Woonsuk Jang

Disclosed are a secondary lithium battery anode and a secondary lithium battery including same, the secondary lithium battery anode comprising a current collector and an anode active material layer located on at least one surface of the current collector, wherein the anode active material layer includes an anode active material, which has sphericity of 0.83 to 0.91, and a binder, which has an average particle diameter (D50) of 180 nm to 450 nm.

Secondary lithium battery anode and secondary lithium battery including same

The present invention relates to an anode for lithium secondary battery and a lithium secondary battery comprising the same, the anode for lithium secondary battery comprising a current collector; and an anode active material layer which is formed on one surface of the current collector, and comprises an anode active material and a cellulose-based compound which has a weight-average molecular weight (Mw) of 500,000 g/mol to 700,000 g/mol and a substitution degree of 0.9 to 1.0, wherein the anode for lithium secondary battery has a loading level (L/L) of 13 mg/cmor greater.

Anode comprising cellulose-based compound for lithium secondary battery and lithium secondary battery comprising same

An electrode assembly and rechargeable battery, the electrode assembly including a first electrode including a first sub-electrode in which an active material is on both surfaces of a base substrate, a second sub-electrode in which the active material is on one surface of the base substrate, and a first electrode uncoated region extending from the first sub-electrode; a second electrode including a third sub-electrode in which an active material is on both surfaces of a base substrate, a fourth sub-electrode in which the active material is on one surface of the base substrate, and a second electrode uncoated region extending from the third sub-electrode; and a separator between the electrodes, wherein the active material at the third sub-electrode includes a protruding portion protruding therefrom, and a distance from the end of the active material at sides based on the third sub-electrode to the protruding portion is 0 to 3 mm.

Electrode assembly and rechargeable battery including the same

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Yongin-si, South Korea

Yuhyun Kim