Abstract: A negative electrode for a lithium metal battery, a lithium metal battery including the same, and a method of preparing the negative electrode are provided. The negative electrode includes a negative electrode current collector, and a protective layer disposed on the negative electrode current collector. The protective layer includes a first protective layer and a second protective layer disposed between the first protective layer and the negative electrode current collector. The first protective layer includes porous nanostructure particles, and the second protective layer includes polar inorganic particles.

Abstract: The present invention relates to a negative electrode for a lithium secondary battery, and a lithium secondary battery including the same, wherein the negative electrode comprises a current collector, and a coating layer which is located on the current collector and comprises polyvinylidene fluoride polymer and LiF.

Abstract: An anode-solid electrolyte sub-assembly for an all-solid secondary battery, the anode-solid electrolyte sub-assembly including: an anode current collector; an anode material layer on the anode current collector; and a solid electrolyte on the anode material layer and opposite the current collector, wherein the anode material layer includes an interlayer, which contacts the solid electrolyte and includes a composite including a first metal material; and a first anode active material layer on the interlayer and opposite the anode current collector, the first anode active material layer including a lithium metal, a lithium alloy, or a combination thereof, wherein the lithium metal or the lithium alloy have a particle size greater than the particle size of the first metal material.

Abstract: Provided is an aqueous rechargeable battery that includes a positive electrode including an organic positive active material including a compound represented by Chemical Formula 1, a negative electrode, a separator between the positive electrode and negative electrode, and an aqueous electrolyte including a water solvent and a metal salt with a molality of greater than or equal to about 10 m. Definitions for Chemical Formula 1 are as described in the specification.

Abstract: An aqueous secondary battery including: a positive electrode; a negative electrode; a separator; and an aqueous electrolytic solution including water and a metal salt represented by Chemical Formula 1 AxDy and having molality of about 5 M to about 40 M wherein in Chemical Formula 1, A is at least one metal ion selected from a sodium ion, a potassium ion, a magnesium ion, a calcium ion, a strontium ion, a zinc ion, or a barium ion, D is at least one type of atomic group ion selected from Cl?, SO42?, NO3?, ClO4?, SCN?, CF3SO3?, C4F3SO3?, (CF3SO2)2N?, AlO2?, AlCl4?, AsF6?, SbF6?, BR4?, and PO2F2?, and 0<x?2, and 0<y?2.

Abstract: Provided are a cathode for a secondary battery, a manufacturing method therefor, and a lithium secondary battery comprising same, the cathode comprising: a cathode current collector; a first layer which is arranged on at least one surface of the cathode current collector and which comprises a first cathode active material; and a second layer which is arranged on the first layer and which comprises a second cathode active material, wherein the first cathode active material is represented by the following chemical formula 1, the second cathode active material is represented by the following chemical formula 1 or 2, and the first cathode active material and the second cathode active material are different from each other. LixNiyM1?yO2??<Chemical formula 1> Li?Co?M?1??O2??<Chemical formula 2> See the Detailed Description of the Invention for the definitions of x, y, a, p, M and M? in the formulas.

Abstract: An aqueous secondary battery according to an embodiment includes: a positive electrode; a negative electrode; a separator; and an aqueous electrolytic solution including water and a metal salt represented by Chemical Formula 1 and having molarity of about 5 m to about 40 m. AxDy??[Chemical Formula 1] In Chemical Formula 1, A is at least one metal ion selected from a sodium ion, a potassium ion, a magnesium ion, a calcium ion, a strontium ion, a zinc ion, or a barium ion, D is at least one type of atomic group ion selected from Cl?, SO42?, NO3?, ClO4?, SCN?, CF3SO3?, C4F9SO3?, (CF3SO2)2N?, AlO2?, AlCl4?, AsF6?, SbF6?, BF4?, and PO2F2?, and 0<x?2, and 0<y?2.

Abstract: Disclosed are a composite material for cathode materials in a secondary battery, a method of manufacturing the same, and a lithium secondary battery including the same. A composite material for cathode materials in a secondary battery includes: a charge carrier ion compound-carbon composite including a carbon particle and a charge carrier ion compound particle represented by general formula of AxDy and dispersed on a surface of the carbon particle; and a transition metal compound represented by a general formula of MzRw. In the general formulae of AxDy and MzRw, A, D, M, R, x, y, z, and w are as defined in the detailed description.

Abstract: An electrolytic additive including a compound represented by Formula 1: wherein, in Formula 1, R1 and R2 are each independently hydrogen or a substituted or unsubstituted C1-C20 aliphatic hydrocarbon group, and at least one of R1 and R2 is a substituted or unsubstituted C2-C20 alkyl group, and R3 to R6 are each independently hydrogen, a substituted or unsubstituted C1-C20 alkyl group, or a substituted or unsubstituted C5-C20 cycloalkyl group.

Abstract: One or more example embodiments of the present disclosure provide a positive active material, a rechargeable lithium battery including the same, and a method of preparing the same. The positive active material includes a lithium-containing composite oxide; and a sulfur-containing inorganic lithium compound, wherein the sulfur-containing inorganic lithium compound forms a coating layer on a surface of the lithium-containing composite oxide. The coating layer may reduce an amount of residual lithium and gas present on the surface of the lithium-containing composite oxide, thereby improving the stability of the battery and improving the cycle-life characteristics.

Abstract: An electrolytic additive including a compound represented by Formula 1: wherein, in Formula 1, R1 and R2 are each independently hydrogen or a substituted or unsubstituted C1-C20 aliphatic hydrocarbon group, and at least one of R1 and R2 is a substituted or unsubstituted C2-C20 alkyl group, and R3 to R6 are each independently hydrogen, a substituted or unsubstituted C1-C20 alkyl group, or a substituted or unsubstituted C5-C20 cycloalkyl group.

Abstract: Disclosed herein are a positive electrode active material including at least one selected from among compounds represented by Formula 1 below and a lithium secondary battery including the same that is capable of improving lifetime characteristics and rate characteristics while exhibiting excellent safety: Li[LixMyM?(1-x-y)]O2-zAz (1), where M is at least one element selected from a group consisting of Ru, Mo, Nb, Te, Re, Ir, Pt, Cr, S, W, Os, and Po, M? is at least one element selected from a group consisting of Ni, Ti, Co, Al, Mn, Fe, Mg, B, Cr, Zr, Zn, and second row transition metals, A is a negative monovalent or divalent anion, and 0<x<0.3, 0.2?y?0.5, 0?z<0.5, and 0.2<x+y<0.8.

Abstract: Disclosed herein are a positive electrode active material including at least one selected from among compounds represented by Formula 1 below and a lithium secondary battery including the same that is capable of improving lifetime characteristics and rate characteristics while exhibiting excellent safety: xLi2MyMn(1-y)O3-zAz*(1?x)LiM?O2-z?A?z? (1), where M is at least one element selected from a group consisting of Ru, Mo, Nb, Te, Re, Ir, Pt, Cr, S, W, Os, and Po, M? is at least one element selected from a group consisting of Ni, Ti, Co, Al, Mn, Fe, Mg, B, Cr, Zr, Zn, and second row transition metals, A and A? are each independently a negative monovalent or divalent anion, and 0<x<1, 0.3<y<1, 0?z<0.5, and 0?z?<0.5.

Abstract: An air battery cathode includes a carbon composite including a core and a conductive coating layer disposed on the core, wherein the core includes a first carbon material and a second carbon material, wherein the conductive coating layer includes a metal-containing semiconductor.

Abstract: A solid electrolyte includes: an ionic liquid; a lithium salt; an inorganic particle; and a polymer, wherein an amount of the ionic liquid is greater than or equal to about 33 parts by weight, based on 100 parts by weight of the polymer. Also a lithium battery including the solid electrolyte and a method of preparing a composite electrolyte membrane including the solid electrolyte.

Abstract: Disclosed are a composite material for cathode materials in a secondary battery, a method of manufacturing the same, and a lithium secondary battery including the same. A composite material for cathode materials in a secondary battery includes: a charge carrier ion compound-carbon composite including a carbon particle and a charge carrier ion compound particle represented by general formula of AxDy and dispersed on a surface of the carbon particle; and a transition metal compound represented by a general formula of MzRw. In the general formulae of AxDy and MzRw, A, D, M, R, x, y, z, and w are as defined in the detailed description.

Abstract: Disclosed herein are a positive electrode active material including at least one selected from among compounds represented by Formula 1 below and a lithium secondary battery including the same that is capable of improving lifetime characteristics and rate characteristics while exhibiting excellent safety: Li[LixMyM?(1-x-y)]O2-zAz (1), where M is at least one element selected from a group consisting of Ru, Mo, Nb, Te, Re, Ir, Pt, Cr, S, W, Os, and Po, M? is at least one element selected from a group consisting of Ni, Ti, Co, Al, Mn, Fe, Mg, B, Cr, Zr, Zn, and second row transition metals, A is a negative monovalent or divalent anion, and 0<x<0.3, 0.2?y?0.5, 0?z<0.5, and 0.2<x+y<0.8.

Abstract: Disclosed herein are a positive electrode active material including at least one selected from among compounds represented by Formula 1 below and a lithium secondary battery including the same that is capable of improving lifetime characteristics and rate characteristics while exhibiting excellent safety: xLi2MyMn(1-y)O3-zAz*(1?x)LiM?O2-z?A?z? (1), where M is at least one element selected from a group consisting of Ru, Mo, Nb, Te, Re, Ir, Pt, Cr, S, W, Os, and Po, M? is at least one element selected from a group consisting of Ni, Ti, Co, Al, Mn, Fe, Mg, B, Cr, Zr, Zn, and second row transition metals, A and A? are each independently a negative monovalent or divalent anion, and 0<x<1, 0.3<y<1, 0?z<0.5, and 0?z?<0.5.

Abstract: An electrode active material for a lithium secondary battery using a heterocyclic compound and a lithium secondary battery including the same are provided. The heterocyclic compound, which is useful as a cathode or anode active material, includes a six-membered ring and a five-membered ring containing one or more elements selected from the group consisting of nitrogen (N), oxygen (O) and sulfur (S), and the heterocyclic compound is configured such that two pairs of carbons which form double bonds with nitrogen atoms contain a functional group linked by a single bond, thus exhibiting redox activity.

Abstract: Certain disclosed embodiments generally relate to oxide materials having relatively high energy and/or power densities. Various aspects of the embodiments are directed to oxide materials having a structure Bi(MjYk)O2, for example, a structure Lij(NijYk)O2 such as Li(Ni0.5Mn0.5)O2. In this structure, Y represents one or more atoms, each independently selected from the group consisting of alkaline earth metals, transition metals, Group 14 elements, Group 15, or Group 16 elements. In some embodiments, such an oxide material may have an O3 crystal structure, and/or a layered structure such that the oxide comprises a plurality of first, repeating atomic planes comprising Li, and a plurality of second, repeating atomic planes comprising Ni and/or Y.