Abstract: Disclosed is a solid state electrolyte comprising a compound of Formula 1 Li7-a*?-(b?4)*??xMa?La3Hf2??Mb?O12?x??Xx ??(1) wherein Ma is a cationic element having a valence of a+; Mb is a cationic element having a valence of b+; and X is an anion having a valence of ?1, wherein, when Ma includes H, 0???5, otherwise 0???0.75, and wherein 0???1.5, 0?x?1.5, and (a*?+(b?4)?+x)>0, 0???1.

Abstract: Disclosed is a solid state electrolyte comprising a compound of Formula 1 Li7?a*??(b?4)*??xMa?La3Hf2??Mb?O12?x??Xx??(1) wherein Ma is a cationic element having a valence of a+; Mb is a cationic element having a valence of b+; and X is an anion having a valence of ?1, wherein, when Ma includes H, 0???5, otherwise 0???0.75, and wherein 0???1.5, 0?x?1.5, and (a*?+(b?4)?+x)>0, 0???1.

Abstract: An ionic-electronic conductive compound of Formula 1: LixA(1-x-y)MzM?(1-z)O3??(1) wherein, 0<x?0.5, 0?y?0.5, 0?z?0.5, A comprises Mg, Ca, Sr, Ba, or a combination thereof, M and M? each independently comprise As, Sb, Bi, or a combination thereof.

Abstract: A metal-air battery including: a negative electrode metal layer; a negative electrode electrolyte layer disposed on the negative electrode metal layer; a positive electrode layer disposed on the negative electrode electrolyte layer, the positive electrode layer comprising a positive electrode material which is capable of using oxygen as an active material; and a gas diffusion layer disposed on the positive electrode layer, wherein the negative electrode electrolyte layer is between the negative electrode metal layer and the positive electrode layer; wherein the negative electrode metal layer, the negative electrode electrolyte layer, and the positive electrode layer are disposed on the gas diffusion layer so that the positive electrode layer contacts a lower surface and an opposite upper surface of the gas diffusion layer, and wherein one side surface of the gas diffusion layer is exposed to an outside.

Abstract: Disclosed is a solid state electrolyte comprising a compound of Formula 1 Li7?a*??(b?4)*??xMa?La3Hf2??Mb?O12?x??Xx ??(1) wherein Ma is a cationic element having a valence of a+; Mb is a cationic element having a valence of b+; and X is an anion having a valence of ?1, wherein, when Ma includes H, 0???5, otherwise 0???0.75, and wherein 0???1.5, 0?x?1.5, and (a*?+(b?4)?+x)>0, 0???1.

Abstract: An ionic-electronic conductive compound of Formula 1: LixA(1-x-y)MzM?(1-z)O3??(1) wherein, 0<x?0.5, 0?y?0.5, 0?z?0.5, A comprises Mg, Ca, Sr, Ba, or a combination thereof, M and M? each independently comprise As, Sb, Bi, or a combination thereof.

Abstract: An air battery cathode including an organic-inorganic composite material including lyophobic nanopores, the organic-inorganic composite material including a porous metal oxide, and a lyophobic layer on a surface of a pore of the porous metal oxide and having a contact angle of greater than about 90°; and a binder. Also a lithium air battery including the cathode, and a method of manufacture the cathode.

Abstract: Provided are electrochemical cells that include a compound having the general formula wherein R1 is moiety associated with a lithium ion, X1 and X3 are unsubstituted methylene moieties, X2 and X4 are each independently selected from a substituted or unsubstituted methylene moiety, X is a substituted or unsubstituted C1-C10 alkylene moiety, arylene moiety or heteroarylene moiety, R2 is selected from Li, H, an alkyl moiety, or a heteroalkyl moiety, 0<m?1, 0?n?1, and m+n=1.

Abstract: A metal-air battery including: a negative electrode metal layer; a negative electrode electrolyte layer disposed on the negative electrode metal layer; a positive electrode layer disposed on the negative electrode electrolyte layer, the positive electrode layer comprising a positive electrode material which is capable of using oxygen as an active material; and a gas diffusion layer disposed on the positive electrode layer, wherein the negative electrode electrolyte layer is between the negative electrode metal layer and the positive electrode layer; wherein the negative electrode metal layer, the negative electrode electrolyte layer, and the positive electrode layer are disposed on the gas diffusion layer so that the positive electrode layer contacts a lower surface and an opposite upper surface of the gas diffusion layer, and wherein one side surface of the gas diffusion layer is exposed to an outside.

Abstract: A metal-air battery including: a negative electrode metal layer; a negative electrode electrolyte layer disposed on the negative electrode metal layer; a positive electrode layer disposed on the negative electrode electrolyte layer, the positive electrode layer comprising a positive electrode material which is capable of using oxygen as an active material; and a gas diffusion layer disposed on the positive electrode layer, wherein the negative electrode electrolyte layer is between the negative electrode metal layer and the positive electrode layer; wherein the negative electrode metal layer, the negative electrode electrolyte layer, and the positive electrode layer are disposed on the gas diffusion layer so that the positive electrode layer contacts a lower surface and an opposite upper surface of the gas diffusion layer, and wherein one side surface of the gas diffusion layer is exposed to an outside.

Abstract: A metal-air battery including: a negative electrode metal layer; a negative electrode electrolyte layer disposed on the negative electrode metal layer; a positive electrode layer disposed on the negative electrode electrolyte layer, the positive electrode layer including a positive electrode material which is capable of using oxygen as an active material; and a gas diffusion layer disposed on the positive electrode layer, wherein the negative electrode electrolyte layer is between the negative electrode metal layer and the positive electrode layer; wherein the negative electrode metal layer, the negative electrode electrolyte layer, and the positive electrode layer are disposed on the gas diffusion layer so that the positive electrode layer contacts a lower surface and an opposite upper surface of the gas diffusion layer, and wherein one side surface of the gas diffusion layer is exposed to an outside.

Abstract: A metal-air battery including: a negative electrode metal layer; a negative electrode electrolyte layer disposed on the negative electrode metal layer; a positive electrode layer disposed on the negative electrode electrolyte layer, the positive electrode layer comprising a positive electrode material which is capable of using oxygen as an active material; and a gas diffusion layer disposed on the positive electrode layer, wherein the negative electrode electrolyte layer is between the negative electrode metal layer and the positive electrode layer; wherein the negative electrode metal layer, the negative electrode electrolyte layer, and the positive electrode layer are disposed on the gas diffusion layer so that the positive electrode layer contacts a lower surface and an opposite upper surface of the gas diffusion layer, and wherein one side surface of the gas diffusion layer is exposed to an outside.

Abstract: An air battery cathode including an organic-inorganic composite material including lyophobic nanopores, the organic-inorganic composite material including a porous metal oxide, and a lyophobic layer on a surface of a pore of the porous metal oxide and having a contact angle of greater than about 90°; and a binder. Also a lithium air battery including the cathode, and a method of manufacture the cathode.

Abstract: An air battery cathode including an organic-inorganic composite material including lyophobic nanopores, the organic-inorganic composite material including a porous metal oxide, and a lyophobic layer on a surface of a pore of the porous metal oxide and having a contact angle of greater than about 90°; and a binder. Also a lithium air battery including the cathode, and a method of manufacture the cathode.

Abstract: A protected anode including: an anode including lithium or capable of reversibly incorporating lithium ions; and a lithium ion-conductive protective layer on the anode and including a ceramic composite represented by Formula 1: Li1+aAlbGe2?cMdP3+eO12+f??Formula 1 wherein M is at least one element selected from titanium (Ti), zirconium (Zr), and germanium (Ge), 0?a?1, 0?b?1, 0?c?1, 0?d?0.5, 0?e?0.1, and 0?f?1.

Abstract: A lithium air battery including an anode for intercalating/deintercalating lithium ions; a cathode having oxygen as a cathode active material, a lithium ion conductive solid electrolyte membrane disposed between the anode and the cathode; and an electrolyte, wherein the electrolyte is disposed between the lithium ion conductive solid electrolyte membrane and the cathode, and wherein the electrolyte includes at least one compound selected from a compound represented by Formula 1 and a copolymer including a repeating unit represented by Formula 2 as an additive: wherein in Formulae 1 and 2, groups CY1, CY2, a, b, c, b, R1 to R18, and variables t, u, and v are defined in the specification.

Abstract: A lithium battery including a negative electrode including a lithium metal or a lithium alloy; a positive electrode; and a polymer gel electrolyte contacting the negative electrode, wherein the polymer gel electrolyte has an ionic conductivity of about 10?3 S/cm or greater, a lithium ion transference number of about 0.15 or greater, and a lithium ion mobility of about 10?6 cm2/V×sec or greater, wherein the polymer gel electrolyte includes a lithium salt, a polymer capable of forming a complex with the lithium salt, an insulating inorganic filler, and an organic solvent, wherein the organic solvent is inert with respect to the lithium metal, wherein an anionic radius of the lithium salt is about 2.5 Angstroms or greater, and wherein a molecular weight of the lithium salt is about 145 or greater.

Abstract: A lithium air battery including an electrolyte including lithium ion conductive polymers and lithium salts between a positive electrode and a lithium ion conductive solid electrolyte membrane. The lithium ion conductive polymers are hydrophilic matrix polymers.

Abstract: Provided are electrochemical cells that include a compound having the general formula wherein R1 is moiety associated with a lithium ion, X1 and X3 are unsubstituted methylene moieties, X2 and X4 are each independently selected from a substituted or unsubstituted methylene moiety, X is a substituted or unsubstituted C1-C10 alkylene moiety, arylene moiety or heteroarylene moiety, R2 is selected from Li, H, an alkyl moiety, or a heteroalkyl moiety, 0<m?1, 0?n?1, and m+n=1.

Abstract: A metal-air battery including: a negative electrode metal layer; a negative electrode electrolyte layer disposed on the negative electrode metal layer; a positive electrode layer disposed on the negative electrode electrolyte layer, the positive electrode layer comprising a positive electrode material which is capable of using oxygen as an active material; and a gas diffusion layer disposed on the positive electrode layer, wherein the negative electrode electrolyte layer is between the negative electrode metal layer and the positive electrode layer; wherein the negative electrode metal layer, the negative electrode electrolyte layer, and the positive electrode layer are disposed on the gas diffusion layer so that the positive electrode layer contacts a lower surface and an opposite upper surface of the gas diffusion layer, and wherein one side surface of the gas diffusion layer is exposed to an outside.