McDermott Will & Emery LLP
Positive electrode active material and non-aqueous electrolyte secondary cell comprising the same
To provide a non-aqueous electrolyte secondary battery in which the amount of Li deposited is small and the battery surface temperature does not increase so much, a positive electrode active material comprising crystal particles of an oxide having a layered single-phase crystal structure and a composition represented by the formula (1): LiNi2/3Mn1/3O2, wherein the arrangement of oxygen atoms constituting the oxide is a cubic close-packed structure is used.
Panasonic Corporation Osaka City University
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Tsutomu Hiroshi Masatoshi
Ohzuku Yoshizawa Nagayama