Samsung Sdi Co., Inc.

Sun-Il Park

Young-Kee Kim

Sumihito Ishida

Jeong-Woo Han

Soojeong Lee

Sujin Um

Dong-Hyun Shin

Joon-Kil Son

Ishida Sumihito

A negative active material for a rechargeable lithium battery includes a lithium titanate compound represented by Chemical Formula 1, where R, a Raman spectrum intensity ratio (I(F2u)/I(F2g)) of an F2u peak in a range of about 200 cmto about 300 cmrelative to an F2g peak in a range of about 400 cmto about 550 cmis greater than or equal to about 0.7.LiTiMO&#x2003;&#x2003;Chemical Formula 1 In Chemical Formula 1, &#x2212;0.2&#x2264;x&#x2264;0.2, &#x2212;0.3&#x2264;y&#x2264;0.3, 0&#x2264;z&#x2264;0.3, &#x2212;0.3&#x2264;n&#x2264;0.3, and M is selected from Mg, Al, Ca, Sr, Cr, V, Fe, Co, Ni, Zr, Zn, Si, Y, Nb, Ga, Sn, Mo, W, Ba, La, Ce, Ag, Ta, Hf, Ru, Bi, Sb, As, and a combination thereof.

Negative active material for rechargeable lithium battery and rechargeable lithium battery comprising same

In an aspect, a positive electrode for a lithium rechargeable battery including a current collector; a positive active material layer disposed on the current collector, wherein the positive active material layer includes a positive active material, active carbon, and an additive.

Positive electrode for rechargeable lithium battery and rechargeable lithium battery including the same

A negative electrode for a rechargeable lithium battery includes a negative active material including a titanium-containing oxide and amorphous carbon. The titanium-containing oxide is present in a larger amount than the amorphous carbon.

Negative electrode for rechargeable lithium battery and rechargeable lithium battery including same

A negative electrode composition for a rechargeable lithium battery. The negative electrode includes a negative active material and crystalline carbon conductive material, wherein the negative active material includes soft carbon, and the crystalline carbon conductive material includes graphite having an average particle diameter (D90) of about 1 micrometer to about 20 micrometers.

Negative electrode composition for rechargeable lithium battery, negative electrode comprising same and rechargeable lithium battery comprising same

An electrolyte for a rechargeable lithium battery, the electrolyte including a lithium salt, a non-aqueous organic solvent, a first additive represented by Chemical Formula 1, and a second additive represented by Chemical Formula 2 is disclosed. A rechargeable lithium battery including the electrolyte is also disclosed. The structures and definitions of the Chemical Formulae 1 and 2 are the same as described in the detailed description.

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Yongin-si, South Korea

Sun-Il Park