Abstract: A positive electrode active material includes a doped lithium nickel phosphate having an olivine structure comprising distorted NiO6 octahedra. The dopant is an anion; or a combination of at least two transition metals having different ionic radii; or an anion and a metal cation. The positive electrode active material can be used in a positive electrode for an electrochemical cell.

Abstract: A cathode active material represented by Formula 1 below: A2+xMP2O7Zy??Formula 1 wherein in Formula 1, A is at least one element selected from Group 1 of the Periodic Table, M is at least one metal element selected from Groups 2 to 4, or 6 to 16 of the Periodic Table, and is a cation having a valence of at least two, Z is at least one element selected from Group 17 of the Periodic Table, 0<x?4, and 0<y?4.

Abstract: An electronic device comprises a first blocking electrode; a second blocking electrode; and a dielectric material disposed between the first electrode and the second electrode, the dielectric material comprising a compound of Formula 1 Li24-b*y-c*z-a*xM1yM2zM3xO12-???(1) wherein M1 is a cationic element having an oxidation state of b, wherein b is +1, +2, +3, +4, +5, +6, or a combination thereof; M2 is a cationic element having an oxidation state of c, wherein c is +1, +2, +3, +4, +5, +6, or a combination thereof; M3 is a cationic element having an oxidation state of a, wherein a is +1, +3, +4, or a combination thereof; 0?y?3; 0?z?3; 0?x?5; and 0???2. Methods for the manufacture of the electronic device are also disclosed.

Abstract: A positive electrode active material includes a doped lithium nickel phosphate having an olivine structure comprising distorted NiO6 octahedra. The dopant is an anion; or a combination of at least two transition metals having different ionic radii; or an anion and a metal cation. The positive electrode active material can be used in a positive electrode for an electrochemical cell.

Abstract: A positive electrode active material includes a plurality of lithium nickel phosphate nanoparticles having an olivine structure and having an exposed surface that is a {111} crystal plane. The positive electrode active material can be used in a positive electrode for an electrochemical cell.

Abstract: An electrode assembly includes a first electrode and a dielectric layer on the first electrode. The dielectric layer includes a bismuth compound of the formula Bi2(CrO4)2Cr2O7, Pb4(BiO4)(PO4), Ag3BiO3, Bi2CdO2(GeO4), Bi2Te4O11, Cs6Bi4O9, Na3Bi(PO4)2, Bi2(SeO3)3, or a combination thereof. The electrode assembly can be particularly useful in various electronic devices.

Abstract: An electrode assembly including a first electrode and a dielectric layer on the first electrode. The dielectric layer comprises a lead-containing compound of the formula PbMgV2O7, Pb2Te3O8, PbZnV2O7, Na2PbO2, PbP2O6, PbZnSiO4, Pb2In2Si2O9, Pb6(AsO4)[B(AsO4)4], PbAl2Si2O8, K4PbO3, Pb2TiAs2O9, Pb4O(VO4)2, Rb4PbO3, Pb2V2O7, Pb9Al8O21, Nd(Al3O6)(Pb2O2), Pb6Co9(TeO6)5, Pb3(B3O7)NO3, a lead-containing oxyhalide of the formula Pb13(Cl3O5)2, Pb13(Br3O5)2, Pb2OF2, Pb2CO3F2, Pb(AsO2)3Cl, Pb3O2(OH)Cl, Pb6(BO3)3OCl, Pb2B5O9I, Pb2B5O9Br, Pb2B5O9Cl, Pb5(AsO3)3Cl, Pb8Y6F32O, Pb(O2Pb3)2(BO3)Br3, Pb6LaO7Cl, a lead-containing phosphate of the formula Pb2PO4I, Pb2InP3O11, Pb2MoP3O11, Pb2Ni(PO4)2, Pb2VO(PO4), K2Pb(PO3)4, Pb3(MoO)3(PO4)5, Pb4O(PO4)2, RbPb(PO3)3, PbVO2PO4, Pb5(PO4)3F, Pb5(PO4)3Cl, Pb5(PO4)3I, PbP2O6, or a combination thereof. The electrode assembly can be particularly useful in various electronic devices.

Abstract: A solid-state ion conductor includes a compound of the formula NaxM12?(y+z)M2yM3z(AO4)3 wherein M1, M2, and M3 are each independently Hf, Mg, Sc, In, Y, Ca, or Zr; A is P, Si, S, or a combination thereof; 3?x?3.5; 0.5?y?1; and 0?z?0.5. The solid-state ion conductor can be useful in various components of an electrochemical cell.

Abstract: A composite solid electrolyte including a first solid electrolyte layer including a halide solid electrolyte, a second solid electrolyte layer including an oxide solid electrolyte, a lithium ion-conductive interlayer between the first solid electrolyte layer and the second solid electrolyte layer, wherein the lithium ion-conductive interlayer includes a composition in which a reaction energy of the lithium ion-conductive interlayer with respect to the first solid electrolyte is ?50 meV/atom or greater.

Abstract: An electronic device comprises a first blocking electrode; a second blocking electrode; and a dielectric material disposed between the first electrode and the second electrode, the dielectric material comprising a compound of Formula 1 Li24-b*y-c*z-a*xM1yM2zM3xO12-???(1) wherein M1 is a cationic element having an oxidation state of b, wherein b is +1, +2, +3, +4, +5, +6, or a combination thereof; M2 is a cationic element having an oxidation state of c, wherein c is +1, +2, +3, +4, +5, +6, or a combination thereof; M3 is a cationic element having an oxidation state of a, wherein a is +1, +3, +4, or a combination thereof; 0?y?3; 0?z?3; 0?x?5; and 0???2. Methods for the manufacture of the electronic device are also disclosed.