Lg Chem, Ltd

Lg Energy Solution, Ltd.

Shulkee Kim

Doo Kyung Yang

Yoo Seok Kim

Jong Ho Jeon

Kwang Ho Yoo

Wonhee Jung

Kyutae Park

Cheoljin Oh

Gayoung Lim

A negative electrode for a secondary battery includes a current collector and a negative electrode active material layer provided on at least one surface of the current collector. The negative electrode active material layer includes a first region corresponding to 50% of a total thickness of the negative electrode active material layer from a surface facing the current collector and a second region corresponding to 50% of the total thickness of the negative electrode active material layer from a surface opposite to the surface facing the current collector. The negative electrode active material layer includes two or more types of negative electrode active materials having D50 different from each other and satisfies the Equations 1 and 2. A secondary battery including the negative electrode is also provided.

Negative electrode and lithium secondary battery

Disclosed is a lithium secondary battery with improved rate characteristics. More particularly, disclosed is a lithium secondary battery including a cathode, an anode, a separator disposed between the cathode and the anode, and an electrolyte, wherein the electrolyte includes a mixed solvent of a cyclic carbonate-based material and a propionate-based material, the cathode includes a lithium manganese composite oxide represented by Formula 1 below as a cathode active material, and the anode includes a lithium metal oxide represented by Formula 2 below as an anode active material:LiMMnOA&#x2003;&#x2003;(1)

Lithium secondary battery of improved rate capability with cathode containing nickel manganese complex oxide for high-voltage applications

Disclosed are an electrolyte for a lithium secondary battery which includes a non-aqueous solvent and a lithium salt and a lithium secondary battery including the same. The electrolyte includes 1 to 60 wt % of a cyclic carbonate and 40 to 99 wt % of a linear solvent based on a total weight of the non-aqueous solvent.

Electrolyte for lithium secondary battery and lithium secondary battery including the same

Disclosed are an electrolyte for a lithium secondary battery which includes a non-aqueous solvent and a lithium salt, wherein the non-aqueous solvent includes an anion receptor, a cyclic carbonate, and a linear solvent, wherein an amount of the cyclic carbonate is in a range of 1 wt % to 30 wt % based on a total weight of the non-aqueous solvent, and a lithium secondary battery including the same.

Electrolyte for secondary battery and lithium secondary battery including the same

Disclosed are an electrolyte for a lithium secondary battery which includes a non-aqueous solvent and a lithium salt, wherein the non-aqueous solvent includes a cyclic carbonate and a linear solvent, wherein an amount of the cyclic carbonate in the non-aqueous solvent is in the range of 1 wt % to 30 wt % based on a total weight of the non-aqueous solvent and a lithium secondary battery including the same.

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Daejeon, South Korea

Shulkee Kim