Cantor Colburn LLP
Cathode active material, cathode including the cathode active material, and sodium secondary battery including the cathode
A cathode active material including a composite transition metal oxide including: sodium; a first transition metal; and a second transition metal, wherein the composite transition metal oxide has a first diffraction peak corresponding to a Miller index of (003) and derived from a layered rock salt structure, and a second diffraction peak corresponding to a Miller index of (104) and derived from a cubic rock salt structure in an X-ray powder diffraction (XRD) pattern, wherein an intensity ratio (I1/I2) of the first diffraction peak to the second diffraction peak is about 7 or greater.
SAMSUNG ELECTRONICS CO., LTD.
H Y C C H C C C H Y C H H H C C
H01M Y02E C01P C01G H01M C01G C01G C01G H01M Y02P C01P H01M H01M H01M C01G C01P
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Seok-soo Hyun-jin Kwang-jin Dong-wook Won-seok
Lee Kim Park Han Chang