Surface-modified cyanide-based transition metal compounds

Abstract

A system, method, and articles of manufacture for a surface-modified transition metal cyanide coordination compound (TMCCC) composition, an improved electrode including the composition, and a manufacturing method for the composition which may include multiple chelation species (Che_x). The composition, compound, device, and uses thereof according to A.sub.xMn.sub.(y-k)M.sup.j.sub.k[Mn.sup.m(CN).sub.(6-p-q)(NC).sub.p(Che_I- ).sup.r.sub.q].sub.z. CHE_GROUP (Vac).sub.(1-z).nH.sub.2O, wherein CHE_GROUP includes one or more chelation materials selected from the group consisting of (Che_I).sup.r.sub.w, (Che_II).sup.s.sub.v, and combinations thereof, and wherein 0<j.ltoreq.4, 0.ltoreq.k.ltoreq.0.1, 0.ltoreq.(p+q).ltoreq.6, 0<x.ltoreq.4, 0<y.ltoreq.1, 0<z.ltoreq.1, 0<w.ltoreq.0.2; -3.ltoreq.r.ltoreq.3; 0<v.ltoreq.0.2; -3.ltoreq.s.ltoreq.3; and 0.ltoreq.n.ltoreq.6; wherein x+2(y-k)+jk+(m+(r+1)q-6)z+wr+vs=0.