Wolf, Greenfield & Sacks, P.C.
Sodium transition metal oxide electroactive compounds
Embodiments related to electroactive compounds, their methods of manufacture, and use are described. In one embodiment, an electroactive compound may include Na(FeaX1-a)O2. X includes at least one of Ti, V, Cr, Mn, Co, Ni, and a is greater than 0 and less than or equal to 0.4. In another embodiment, an electroactive compound may include Na(MnwFexCoyNiz)O2, where w, x, y, and z are greater than 0. Further, a sum of w, x, y, and z is equal to 1 in some cases.
Massachusetts Institute of Technology
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Gerbrand Xin
Ceder Li