McDermott Will & Emery LLP
Active material for non-aqueous electrolyte secondary battery and manufacturing method therefore
An active material for a non-aqueous electrolyte secondary battery including a lithium-containing transition metal oxide containing nickel and manganese and having a closest-packed structure of oxygen, wherein an atomic ratio MLi/MT between the number of moles of lithium MLi and the number of moles of transition metal Mt contained in the lithium-containing transition metal oxide is greater than 1.0; the lithium-containing transition metal oxide has a crystal structure attributed to a hexagonal system, and the X-ray diffraction image of the crystal structure has a peak P003 attributed to the (003) plane and a peak P104 attributed to the (104) plane; an integrated intensity ratio I003/I104 between the peak P003 and the peak P104 varies reversibly within a range from 0.7 to 1.5 in association with absorption and desorption of lithium by the lithium-containing transition metal oxide; and the integrated intensity ratio varies linearly and continuously.
Panasonic Corporation Public University Corporation Osaka City University
Y C H C C C C H C C C Y C C H C H C C
Y02T C01G H01M C01P C01P C01P C01P H01M C01P C01G C01G Y02E C01G C01P H01M C01P H01M C01G C01G
additional inventional inventional additional additional additional additional inventional additional inventional inventional additional inventional additional additional additional inventional inventional inventional
Tsutomu Hiroshi Kensuke
Ohzuku Yoshizawa Nakura