Abstract: A negative active material for a rechargeable lithium battery includes a composite carbon particle including a core particle including crystalline-based carbon and a coating layer positioned on the surface of the core particle and including amorphous carbon. A peak intensity (I1620) at 1620 cm?1 ranges from about 0.01 to about 0.1, a peak intensity (I1360) at 1360 cm?1 ranges from about 0.05 to about 0.5, and a peak intensity (I1580 at 1580 cm?1 ranges from about 0.1 to about 0.8 in a Raman spectrum of the composite carbon particle.

Abstract: A rechargeable battery according to another exemplary embodiment of the present invention includes an electrode assembly including a first electrode including a first electrode plate, a plurality of first electrode uncoated regions protruded from the first electrode plate, a base member, and a coupled member formed at at least one lateral side of the base member, a separator overlapping the first electrode, and a second electrode including a second electrode plate overlapping the separator, a plurality of second electrode uncoated regions protruded from the second electrode plate, a base member, and a coupled member formed at at least one lateral side of the base member, wherein a ratio of a thickness (T2*2) of one of the coupled members to a thickness (T1) of one of the base members is between about 3 and about 6.

Abstract: An electrode assembly wound by interposing a separator between a first electrode and a second electrode according to an exemplary embodiment of the present invention is disclosed, wherein the first electrode includes a first coating part coated with an active material and a plurality of first electrode taps that are not coated with the active material and protrude to an outer side of the first coating part, and two first electrode taps per the number of three winding times are formed so as to protrude from the first electrode.

Abstract: A rechargeable battery is disclosed. In one aspect, the battery includes an electrode assembly having a thickness and including a positive electrode and a negative electrode. The battery also includes a case accommodating the electrode assembly. The electrode assembly further includes a plurality of first electrode tabs protruding from the positive electrode and a plurality of second electrode tabs protruding from the negative electrode. The first electrode tabs have a width and are aligned in the thickness dimension of the electrode assembly. A distance TG between the first electrode tabs and the second electrode tabs satisfies the following equations: 1.2TW1<TG<6TW1 and TG>5SW1, where TW1 is the width of the first electrode tabs and SW1 is the minimum distance between the first electrode tabs and a lateral end of the electrode assembly.

Abstract: An electrolyte for a lithium battery for solid state drive backup power and a lithium battery for solid state drive backup power including the same, the electrolyte including a non-aqueous organic solvent; and a lithium salt, wherein the lithium salt includes LiBF4 and the electrolyte has a molar concentration of the LiBF4 of about 0.8 M to about 1.2 M.

Abstract: A rechargeable battery according to another exemplary embodiment of the present invention includes an electrode assembly including a first electrode including a first electrode plate, a plurality of first electrode uncoated regions protruded from the first electrode plate, a base member, and a coupled member formed at at least one lateral side of the base member, a separator overlapping the first electrode, and a second electrode including a second electrode plate overlapping the separator, a plurality of second electrode uncoated regions protruded from the second electrode plate, a base member, and a coupled member formed at at least one lateral side of the base member, wherein a ratio of a thickness (T2*2) of one of the coupled members to a thickness (T1) of one of the base members is between about 3 and about 6.

Abstract: A rechargeable battery is disclosed. In one aspect, the battery includes an electrode assembly having a thickness and including a positive electrode and a negative electrode. The battery also includes a case accommodating the electrode assembly. The electrode assembly further includes a plurality of first electrode tabs protruding from the positive electrode and a plurality of second electrode tabs protruding from the negative electrode. The first electrode tabs have a width and are aligned in the thickness dimension of the electrode assembly. A distance TG between the first electrode tabs and the second electrode tabs satisfies the following equations: 1.2TW1<TG<6TW1 and TG>5SW1, where TW1 is the width of the first electrode tabs and SW1 is the minimum distance between the first electrode tabs and a lateral end of the electrode assembly.

Abstract: An electrode assembly wound by interposing a separator between a first electrode and a second electrode according to an exemplary embodiment of the present invention is disclosed, wherein the first electrode includes a first coating part coated with an active material and a plurality of first electrode taps that are not coated with the active material and protrude to an outer side of the first coating part, and two first electrode taps per the number of three winding times are formed so as to protrude from the first electrode.

Abstract: A negative active material for a rechargeable lithium battery includes a composite carbon particle including a core particle including crystalline-based carbon and a coating layer positioned on the surface of the core particle and including amorphous carbon. A peak intensity (I1620) at 1620 cm?1 ranges from about 0.01 to about 0.1, a peak intensity (I1360) at 1360 cm?1 ranges from about 0.05 to about 0.5, and a peak intensity (I1580at 1580 cm?1 ranges from about 0.1 to about 0.8 in a Raman spectrum of the composite carbon particle.

Abstract: An electrolyte for a lithium battery for solid state drive backup power and a lithium battery for solid state drive backup power including the same, the electrolyte including a non-aqueous organic solvent; and a lithium salt, wherein the lithium salt includes LiBF4 and the electrolyte has a molar concentration of the LiBF4 of about 0.8 M to about 1.2 M.