Abstract: A negative active material for a rechargeable lithium battery includes a carbon-based active material including highly crystalline natural graphite and artificial graphite. The carbon-based active material has a peak intensity ratio (P2/P4) of about 0.3 to about 0.4, wherein P2 refers to the 101 peak of a rhombohedral crystal grain and P4 refers to the 101 peak of a hexagonal crystal grain, as measured by X-ray diffraction.

Abstract: A negative active material for a rechargeable lithium battery includes a carbon-based active material including highly crystalline natural graphite and artificial graphite. The carbon-based active material has a peak intensity ratio (P2/P4) of about 0.3 to about 0.4, wherein P2 refers to the 101 peak of a rhombohedral crystal grain and P4 refers to the 101 peak of a hexagonal crystal grain, as measured by X-ray diffraction.

Abstract: A negative active material for a rechargeable lithium battery includes a carbon-based active material including highly crystalline natural graphite and artificial graphite. The carbon-based active material has a peak intensity ratio (P2/P4) of about 0.3 to about 0.4, wherein P2 refers to the 101 peak of a rhombohedral crystal grain and P4 refers to the 101 peak of a hexagonal crystal grain, as measured by X-ray diffraction.

Abstract: A positive electrode for a rechargeable lithium battery includes a positive active material and a binder including polyvinylidene fluoride, a carboxyl group-containing polyvinylidene fluoride, and poly(vinylidenefluoride-tetrafluoroethylene). The positive electrode may have an improved binding force and increased flexibility. A rechargeable lithium battery includes the positive electrode. The rechargeable lithium battery may have high capacity and excellent performance.

Abstract: Embodiments of the present invention are directed to negative active materials for lithium rechargeable batteries and to lithium rechargeable batteries including the negative active materials. The negative active material includes a crystalline carbon material having pores, and amorphous conductive nanoparticles in the pores, on the surface of the crystalline carbon, or both in the pores and on the surface of the crystalline carbon. The conductive nanoparticles have a FWHM of about 0.35 degrees (°) or greater at the crystal plane that produces the highest peak as measured by X-ray diffraction.

Abstract: A negative electrode for a rechargeable lithium battery, including a negative active material layer including a polymer binder including a repeating unit represented by the following Chemical Formula 1 or the following Chemical Formula 2 and a Si-based negative active material; and a current collector supporting the negative active material layer, is provided: wherein in Chemical Formulae 1 and 2, R1 and R2 are the same or different and hydrogen, OH or OOH.

Abstract: A negative active material for a rechargeable lithium battery includes a carbon-based active material including highly crystalline natural graphite and artificial graphite. The carbon-based active material has a peak intensity ratio (P2/P4) of about 0.3 to about 0.4, wherein P2 refers to the 101 peak of a rhombohedral crystal grain and P4 refers to the 101 peak of a hexagonal crystal grain, as measured by X-ray diffraction.

Abstract: A battery includes an electrode assembly fabricated with a positive electrode, a separator, and a negative electrode, each perforated by corresponding through voids along both of their respective opposite edge margins, stacked one upon another with the corresponding holes aligned. An arrangement of guide portions integrally formed simultaneously together with a surrounding case, accommodates stacking of the electrode assembly during fabrication of the battery. Aspects of the guide portions extend along a direction of stacking of the positive electrodes, negative electrodes and separators. The case and the arrangement of guide portions improve the internal alignment and facilitates the stack ability of electrode assemblies formed by the stacking of positive electrodes, negative electrodes and separators, and enhances the operational stability of the battery and the output performance of the battery, without detracting from the overall compactness of the battery.

Abstract: A positive electrode for a rechargeable lithium battery includes a positive active material and a binder including polyvinylidene fluoride, a carboxyl group-containing polyvinylidene fluoride, and poly(vinylidenefluoride-tetrafluoroethylene). The positive electrode may have an improved binding force and increased flexibility. A rechargeable lithium battery includes the positive electrode. The rechargeable lithium battery may have high capacity and excellent performance.

Abstract: An electrode for a lithium secondary battery and a lithium secondary battery including the same, the electrode including a polyamide imide (PAI)-based binder, wherein a 1,3-benzenediamine peak is not observed when a composition including components extracted from the electrode by a solvent capable of dissolving the polyamideimide (PAI)-based binder is analyzed with pyrolysis-gas chromatography (Py-GC) under conditions of a pyrolysis temperature of about 750 to about 780° C., a pyrolysis time of about 5 seconds to about 15 seconds, and increasing a gas chromatography oven temperature from about 40° C. to about 300° C. at a rate of about 10° C./min.

Abstract: A method of preparing a negative active material for a rechargeable lithium battery including preparing a powder including a silicon-carbon composite or a Si-based material represented by SiOx wherein 0?x<2; and introducing a transition metal-containing material including a transition metal or a transition metal oxide catalyst, in a form of an island, on the surface of the powder is disclosed. In addition, a rechargeable lithium battery including the negative active material is also disclosed.

Abstract: A negative active material for a rechargeable lithium battery includes: a crystalline carbon core including pores; an amorphous carbon shell positioned on the core surface; metal nanoparticles dispersed inside the pores; and amorphous carbon inside the pores, wherein a first particle diameter difference (D50?D10) of the nanoparticles is from about 70 to about 150 nm and the second particle diameter difference (D90?D50) of the nanoparticles is from about 440 to about 520 nm.

Abstract: A negative active material for a rechargeable lithium battery includes a core including crystalline carbon, a metal nano particle and a MOx nano particle (where x is from 0.5 to 1.5, and M is Si, Sn, In, Al, or a combination thereof) disposed on the core surface, and a coating layer including an amorphous carbon surrounding the core surface, the metal nano particle and the MOx nano particle. A lithium rechargeable battery includes the negative active material.

Abstract: A lithium secondary battery includes a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material, a separator separating the positive electrode from the negative electrode, and an electrolyte. The negative electrode active material includes a graphite core particle, at least one metal particle located on the graphite core particle, and a polymer film coating the graphite core particle and the at least one metal particle. The polymer includes a polyimide- or polyacrylate-based polymer.

Abstract: A rechargeable lithium battery including: a negative electrode having a composite negative active material of a metal and a carbonaceous material; a positive electrode having a mixed positive active material of about 90 to 99 wt % of a first positive active material selected from cobalt, manganese, phosphate acid-based, or combinations thereof and about 1 to about 10 wt % of a nickel-based second positive active material; and a non-aqueous electrolyte.

Abstract: A negative active material for a rechargeable lithium battery includes: a crystalline carbon core including pores; an amorphous carbon shell positioned on the core surface; metal nanoparticles dispersed inside the pores; and amorphous carbon inside the pores, wherein a first particle diameter difference (D50?D10) of the nanoparticles is from about 70 to about 150 nm and the second particle diameter difference (D90?D50) of the nanoparticles is from about 440 to about 520 nm.

Abstract: A negative electrode for a rechargeable lithium battery, including a negative active material layer including a polymer binder including a repeating unit represented by the following Chemical Formula 1 or the following Chemical Formula 2 and a Si-based negative active material; and a current collector supporting the negative active material layer, is provided: wherein in Chemical Formulae 1 and 2, R1 and R2 are the same or different and hydrogen, OH or OOH.

Abstract: A battery includes an electrode assembly fabricated with a positive electrode, a separator, and a negative electrode, each perforated by corresponding through voids along both of their respective opposite edge margins, stacked one upon another with the corresponding holes aligned. An arrangement of guide portions integrally formed simultaneously together with a surrounding case, accommodates stacking of the electrode assembly during fabrication of the battery. Aspects of the guide portions extend along a direction of stacking of the positive electrodes, negative electrodes and separators. The case and the arrangement of guide portions improve the internal alignment and facilitates the stack ability of electrode assemblies formed by the stacking of positive electrodes, negative electrodes and separators, and enhances the operational stability of the battery and the output performance of the battery, without detracting from the overall compactness of the battery.

Abstract: A negative active material for a rechargeable lithium battery includes a core including crystalline carbon, a metal nano particle and a MOx nano particle (where x is from 0.5 to 1.5, and M is Si, Sn, In, Al, or a combination thereof) disposed on the core surface, and a coating layer including an amorphous carbon surrounding the core surface, the metal nano particle and the MOx nano particle.

Abstract: An electrode for a lithium secondary battery and a lithium secondary battery including the same, the electrode including a polyamide imide (PAI)-based binder, wherein a 1,3-benzenediamine peak is not observed when a composition including components extracted from the electrode by a solvent capable of dissolving the polyamideimide (PAI)-based binder is analyzed with pyrolysis-gas chromatography (Py-GC) under conditions of a pyrolysis temperature of about 750 to about 780° C., a pyrolysis time of about 5 seconds to about 15 seconds, and increasing a gas chromatography oven temperature from about 40° C. to about 300° C. at a rate of about 10° C./min.