Abstract: Disclosed are a lithium halide-based nanocomposite, a method of preparing the same, a solid electrolyte including the lithium halide-based nanocomposite, and an all-solid-state battery including the solid electrolyte, the lithium halide-based nanocomposite including a nanosized compound selected from M1Oc, LiX, and a combination thereof dispersed in a halide compound.

Abstract: Embodiments related to cation-disordered lithium metal oxide compounds, their methods of manufacture, and use are described. In one embodiment, a cation-disordered lithium metal oxide includes LiaMbM?cO2 with a greater than 1. M includes at least one redox-active species with a first oxidation state n and an oxidation state n? greater than n, and M is chosen such that a lithium-M oxide having a formula LiMO2 forms a cation-disordered rocksalt structure. M? includes at least one charge-compensating species that has an oxidation state y that is greater than n.

Abstract: Embodiments related to cation-disordered lithium metal oxide compounds, their methods of manufacture, and use are described. In one embodiment, a cation-disordered lithium metal oxide includes LiaMbM?cO2 with a greater than 1. M includes at least one redox-active species with a first oxidation state n and an oxidation state n? greater than n, and M is chosen such that a lithium-M oxide having a formula LiMO2 forms a cation-disordered rocksalt structure. M? includes at least one charge-compensating species that has an oxidation state y that is greater than n.

Abstract: A compound of Formula I: NaxMnaMb(PO4??)3??(I) wherein M is V, Nb, Ga, Cr, Ti, Zr, or a combination thereof, a is equal to or greater than 0.8 to equal to or less than 1.5, b is equal to or greater than 0.5 to equal to or less than 1.2, x is greater than 0 to equal to or less than 4, ? is equal to or greater than 0 to equal to or less than 1, and a sum of a and b is 2.

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: Embodiments related to cation-disordered lithium metal oxide compounds, their methods of manufacture, and use are described. In one embodiment, a cation-disordered lithium metal oxide includes LiaMbM?cO2 with a greater than 1. M includes at least one redox-active species with a first oxidation state n and an oxidation state n? greater than n, and M is chosen such that a lithium-M oxide having a formula LiMO2 forms a cation-disordered rocksalt structure. M? includes at least one charge-compensating species that has an oxidation state y that is greater than n.

Abstract: A compound of Formula I: NaxMnaMb(PO4-?)3??(I) wherein M is V, Nb, Ga, Cr, Ti, Zr, or a combination thereof, a is equal to or greater than 0.8 to equal to or less than 1.5, b is equal to or greater than 0.5 to equal to or less than 1.2, x is greater than 0 to equal to or less than 4, ? is equal to or greater than 0 to equal to or less than 1, and a sum of a and b is 2.

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: Embodiments related to cation-disordered lithium metal oxide compounds, their methods of manufacture, and use are described. In one embodiment, a cation-disordered lithium metal oxide includes LiaMbM?cO2 with a greater than 1. M includes at least one redox-active species with a first oxidation state n and an oxidation state n? greater than n, and M is chosen such that a lithium-M oxide having a formula LiMO2 forms a cation-disordered rocksalt structure. M? includes at least one charge-compensating species that has an oxidation state y that is greater than n.

Abstract: Provided is a secondary battery comprising a positive electrode active material represented by the following Chemical Formula 1, Li{LiaMnxM1-a-x-yM?y}O2??[Chemical Formula 1] where 0<a?0.2, x>(1?a)/2, and 0<y<0.2(1?a), and M is simultaneously applied by any one element or two or more elements selected from the group consisting of group 3 and 4 elements, and M? is a metal having an ion diameter of 70 pm or more with an oxidation number of 4 as well as a six-coordinate octahedral structure (specifically, any one element or two or more elements selected from the group consisting of titanium (Ti), vanadium (V), and iron (Fe) are simultaneously applied). According to the present invention, a high capacity lithium secondary battery having improved safety and processability may be provided.

Abstract: A hydrogen dissociation catalyst of the present invention includes an alloy in which two metals are intermingled with each other, the alloy being an Ir—Au alloy which is a functional alloy, and the hydrogen dissociation catalyst has an activity for a hydrogen oxidation reaction and may replace a platinum catalyst. Economic efficiency may be enhanced by using the hydrogen dissociation catalyst instead of the platinum catalyst.

Abstract: The present invention relates a method for producing a graphite intercalation compound (GIC) and to the production of graphene using the same. The method of the present invention comprises the following steps: (a) obtaining alkaline metals or alkaline metal ions, or alkaline earth metals or alkaline metal ions, from alkaline metal salts or alkaline earth metal salts; (b) forming a graphite intercalation compound using the alkaline metals or alkaline metal ions, or the alkaline earth metals or alkaline earth metal ions; and (c) dispersing the graphite intercalation compound so as to obtain graphene. As the method of the present invention uses salts which are inexpensive and safe, graphite intercalation compounds can be easily produced at a low cost, and the graphene can be obtained from the thus-produced compounds, thereby reducing the costs of producing the graphene and enabling the easy mass production of the graphene.

Abstract: Provided is a secondary battery comprising a positive electrode active material represented by the following Chemical Formula 1, Li{LiaMnxM1-a-x-yM?y}O2 ??[Chemical Formula 1] where 0<a?0.2, x>(1-a)/2, and 0<y<0.2(1-a), and M is simultaneously applied by any one element or two or more elements selected from the group consisting of group 3 and 4 elements, and M? is a metal having an ion diameter of 70 pm or more with an oxidation number of 4 as well as a six-coordinate octahedral structure (specifically, any one element or two or more elements selected from the group consisting of titanium (Ti), vanadium (V), and iron (Fe) are simultaneously applied). According to the present invention, a high capacity lithium secondary battery having improved safety and processability may be provided.

Abstract: The present invention relates a method for producing a graphite intercalation compound (GIC) and to the production of graphene using the same. The method of the present invention comprises the following steps: (a) obtaining alkaline metals or alkaline metal ions, or alkaline earth metals or alkaline metal ions, from alkaline metal salts or alkaline earth metal salts; (b) forming a graphite intercalation compound using the alkaline metals or alkaline metal ions, or the alkaline earth metals or alkaline earth metal ions; and (c) dispersing the graphite intercalation compound so as to obtain graphene. As the method of the present invention uses salts which are inexpensive and safe, graphite intercalation compounds can be easily produced at a low cost, and the graphene can be obtained from the thus-produced compounds, thereby reducing the costs of producing the graphene and enabling the easy mass production of the graphene.