Cathode and lithium battery using the same
AssigneeSamsung SDI Co., Ltd.
InventorKyu-Sung PARK
Life of this patent
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Abstract
A cathode and a lithium battery including the cathode have improved electrical characteristics. The cathode includes a cathode active material composition including a conducting agent, a binder, and a cathode active material, wherein the cathode active material includes a first lithium compound and a second lithium compound, the first lithium compound having an open-circuit voltage greater than an open-circuit voltage of the second lithium compound, and wherein the second lithium compound includes a metal oxide coating layer.
Claims16
A cathode comprising:
- a current collector;
- and
- a cathode active material composition disposed on a surface of the current collector, the cathode active material composition comprising a conducting agent, a binder, and a cathode active material,
- wherein the cathode active material comprises a first lithium compound having an open-circuit voltage of about 3V or greater and a second lithium compound having an open-circuit voltage of less than 3V, wherein the second lithium compound comprises a metal oxide coating layer.
A cathode active material for a lithium battery, the cathode active material comprising:
- a first lithium compound and a second lithium compound, the first lithium compound having a greater open circuit voltage with respect to Li than the second lithium compound, and the second lithium compound comprising a metal oxide coating.
Dependencies are inferred from the claim text.