Abstract: It is an object to provide a cathode active material and a cathode which can attain a lithium ion secondary battery with high capacity and high security, and further to provide the lithium ion secondary battery with high capacity and high security. According to the present invention, the cathode active material is represented by the following composition formula: Li1.1+xNiaM1bM2cO2 wherein M1 represents Co, or Co and Mn; M2 represents Mo, W or Nb; ?0.07?x?0.1; 0.6?a?0.9; 0.05?b?0.38; and 0.02?c?0.06.

Abstract: Provided is a lithium secondary battery having improved discharge characteristics in a range of high-rate discharge while minimizing a dead volume and at the same time, having increased cell capacity via increased electrode density and electrode loading amounts, by inclusion of two or more active materials having different redox levels so as to exert superior discharge characteristics in the range of high-rate discharge via sequential action of cathode active materials in a discharge process, and preferably having different particle diameters.

Abstract: Described is an electrode comprising and preferably consisting of electronically active material (EAM) in nanoparticulate form and a matrix, said matrix consisting of a pyrolization product with therein incorporated graphene flakes and optionally an ionic lithium source. Also described are methods for producing a particle based, especially a fiber based, electrode material comprising a matrix formed from pyrolized material incorporating graphene flakes and rechargeable batteries comprising such electrodes.

Abstract: A rechargeable lithium battery including a positive electrode including a positive active material, a negative electrode including a negative active material, and a non-aqueous electrolyte including a non-aqueous organic solvent and a lithium salt. The positive electrode has an active-mass density of about 3.7 to 4.1 g/cc, and the non-aqueous electrolyte includes a nitrile-based compound additive, a non-aqueous organic solvent, and a lithium salt.

Abstract: An active material comprises a core particle containing LiCo(1-x)MxO2 and/or Li(Mn(1-y)My)2O4, and a coating part covering at least part of a surface of the core particle, while the coating part contains LiVOPO4. Here, M is at least one element selected from the group consisting of Al, Mg, and transition elements, 0.95?x?0, 0.2?y?0, and V in LiVOPO4 may partly be substituted by at least one element selected from the group consisting of Ti, Ni, Co, Mn, Fe, Zr, Cu, Zn, and Yb.

Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode contains a lithium compound and a negative electrode current collector supporting the lithium compound. A log differential intrusion curve obtained when a pore size diameter of the negative electrode is measured by mercury porosimetry has a peak in a pore size diameter range of 0.03 to 0.2 ?m and attenuates with a decrease in pore size diameter from an apex of the peak. A specific surface area (excluding a weight of the negative electrode current collector) of pores of the negative electrode found by mercury porosimetry is 6 to 100 m2/g. A ratio of a volume of pores having a pore size diameter of 0.05 ?m or less to a total pore volume is 20% or more.

Abstract: A conventional, multilayer, all-solid-state, lithium ion secondary battery where an electrode layer and an electrolyte layer are stacked has a problem that it has a high interface resistance between the electrode layer and the electrolyte layer and has a difficulty in increasing the capacity of the battery. A battery has been manufactured by applying pastes of a mixture of an active material and a solid electrolyte to form electrode layers and baking a laminate of electrode layers and electrolyte layers at a time. As a result, a matrix structure including the active material and the solid electrolyte has been formed in the electrode layers, so that a battery with a large capacity and a reduced interface resistance between the electrode layer and the electrolyte layer has been successfully achieved.

Abstract: A cathode active material including a lithium metal oxide composite having a first domain and a second domain and represented by Formula 1: x[Li2-y(M1)1-z(M2)y+zO3]-(1?x)[LiMeO2]??Formula 1 wherein 0<x<1, 0?y<1, 0?z<1, 0<y+z<1, M1 includes at least one transition metal, M2 includes at least one metal selected from magnesium (Mg), aluminum (Al), vanadium (V), zinc (Zn), molybdenum (Mo), niobium (Nb), lanthanum (La), and ruthenium (Ru), and Me includes at least one metal selected from nickel (Ni), cobalt (Co), manganese (Mn), iron (Fe), chromium (Cr), titanium (Ti), copper (Cu), aluminum (Al), magnesium (Mg), zirconium (Zr), and boron (B).

Abstract: A method is provided for fabricating a battery using an anode preloaded with consumable metals. The method forms an ion-permeable membrane immersed in an electrolyte. A preloaded anode is immersed in the electrolyte, comprising MeaX, where X is a material such as carbon, metal capable of being alloyed with Me, intercalation oxides, electrochemically active organic compounds, and combinations of the above-listed materials. Me is a metal such as alkali metals, alkaline earth metals, and combinations of the above-listed metals. A cathode is also immersed in the electrolyte and separated from the preloaded anode by the ion-permeable membrane. The cathode comprises M1YM2Z(CN)N.MH2O. After a plurality of initial charge and discharge operations are preformed, an anode is formed comprising MebX overlying the current collector in a battery discharge state, where 0?b<a.

Abstract: A protected active metal electrode and a device with the electrode are provided. The protected active metal electrode includes an active metal substrate and a protection layer on a surface of the active metal substrate. The protection layer at least includes a metal thin film covering the surface of the active metal substrate and an electrically-conductive thin film covering a surface of the metal thin film. A material of the metal thin film is Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, or W. A material of the electrically-conductive thin film is selected from nitride of a metal in the metal thin film, carbide of a metal in the metal thin film, a diamond-like carbon (DLC), and a combination thereof.

Abstract: A method is presented for fabricating an anode preloaded with consumable metals. The method provides a material (X), which may be one of the following materials: carbon, metals able to be electrochemically alloyed with a metal (Me), intercalation oxides, electrochemically active organic compounds, and combinations of the above-listed materials. The method loads the metal (Me) into the material (X). Typically, Me is an alkali metal, alkaline earth metal, or a combination of the two. As a result, the method forms a preloaded anode comprising Me/X for use in a battery comprising a M1YM2Z(CN)N·MH2O cathode, where M1 and M2 are transition metals. The method loads the metal (Me) into the material (X) using physical (mechanical) mixing, a chemical reaction, or an electrochemical reaction. Also provided is preloaded anode, preloaded with consumable metals.

Abstract: Provided is a cathode active material including a lithium metal oxide of Formula 1 below: Li[LixMeyMz]O2+d??<Formula 1> wherein x+y+z=1; 0<x<0.33; 0<z<0.1; 0?d?0.1; Me is at least one metal selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Al, Mg, Zr, and B; and M is at least one metal selected from the group consisting of Mo, W, Ir, Ni, and Mg.

Abstract: The described embodiments provide an energy storage device that includes a positive electrode including an active material that can store and release ions, a negative electrode including an active material that is a lithiated nano-architectured active material including tin and at least one stress-buffer component, and a non-aqueous electrolyte including lithium. The negative electrode active material is nano-architectured before lithiation.

Abstract: An electrolyte for a lithium secondary battery including a lithium salt, a nonaqueous organic solvent, and an additive, in which the additive is composed of one or more compounds including a purinone or a purinone derivative. The lithium secondary battery with improved life and high-temperature storage may be provided by using the electrolyte for a lithium secondary battery according to an embodiment of the present invention.

Abstract: In a non-aqueous electrolyte secondary battery including a positive electrode 1, a negative electrode 2 and a non-aqueous electrolyte, a positive electrode active material wherein a particle of at least one compound selected from Er hydroxide, Er oxyhydroxide, Yb hydroxide, Yb oxyhydroxide, Tb hydroxide, Tb oxyhydroxide, Dy hydroxide, Dy oxyhydroxide, Ho hydroxide, Ho oxyhydroxide, Tm hydroxide, Tm oxyhydroxide, Lu hydroxide, and Lu oxyhydroxide is dispersed and adhered on a surface of a positive electrode active material particle containing Li is used.

Abstract: In one aspect, an electrode assembly comprising a positive electrode, a negative electrode and a separator, wherein the positive electrode further comprises a first positive electrode active material layer, and a second positive electrode active material layer formed on one surface of the first positive electrode active material layer, the first positive electrode active material layer further comprises a first positive electrode active material containing manganese (Mn), and the second positive electrode active material layer further comprises a second positive electrode active material containing cobalt (Co) and a lithium battery comprising the same are provided.

Abstract: A process for preparing an at least partially lithiated transition metal oxyanion-based lithium-ion reversible electrode material, which includes providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process.

Abstract: An anode and a battery, which have a high capacity and can improve battery characteristics such as large current discharge characteristics and low temperature discharge characteristics are provided. An anode has an anode current collector and an anode active material layer provided on the anode current collector. The density of the anode active material layer is in the range from 1.5 g/cm3 to 1.8 g/cm3. Further, the anode active material layer contains a granulated graphite material which is obtained by granulating a flat graphite particle in nodular shape and mesocarbon microbeads. Thereby, the granulated graphite material is prevented from being destroyed, and diffusion path of lithium ions is secured.

Abstract: Described is an electrode comprising and preferably consisting of electronically active material (EAM) in nanoparticulate form and a matrix, said matrix consisting of a pyrolization product with therein incorporated graphene flakes and optionally an ionic lithium source. Also described are methods for producing a particle based, especially a fiber based, electrode material comprising a matrix formed from pyrolized material incorporating graphene flakes and rechargeable batteries comprising such electrodes.

Abstract: The present application discloses a lithium-rich anode material, a lithium battery anode, and a lithium battery, where the structural formula of the lithium-rich anode material is as follows: z[xLi2MO3.(1-x)LiMeO2].(1-z)Li3-2yM?2yPO4, where 0<x<1, 0<y<1, 0<z<1; M is at least one of elements Mn, Ti, Zr, and Cr, Me is at least one of elements Mn, Co, Ni, Ti, Cr, V, Fe, Al, Mg, and Zr, and M? is at least one of elements Fe, Co, Ni, V, Mg, and Mn. Both the lithium battery anode and the lithium battery include the lithium-rich anode material. Because of the high capability of withstanding high voltages, the high initial charge-discharge efficiency, and the safety of the lithium-rich anode material, the lithium battery has excellent energy density, discharge capacity, cycle life, and rate performance.

Abstract: A composite cathode active material, a method of preparing the composite cathode active material, and a cathode and a lithium battery each including the composite cathode active material. The composite cathode active material includes a core including a lithium intercalatable oxide which enables intercalation and deintercalation of lithium; and a coating layer disposed on at least a portion of the core, wherein the conductive layer includes a lithium metal oxide which is an inactive lithium ion conductor, and wherein the lithium metal oxide contains a metal which has an atomic weight of 27 Daltons or more and is selected an element of Groups 3 to 14 of the Periodic Table of the Elements.

Abstract: To provide a process for producing a cathode active material for a lithium ion secondary battery, a cathode for a lithium ion secondary battery, and a lithium ion secondary battery. A production process which comprises contacting a lithium-containing composite oxide containing Li element and a transition metal element with a composition (1) {an aqueous solution containing cation M having at least one metal element (m)} and a composition (2) {an aqueous solution containing anion N having at least one element (n) selected from the group consisting of S, P, F and B, forming a hardly soluble salt when reacted with the cation M}, wherein the total amount A (mL/100 g) of the composition (1) and the composition (2) contacted per 100 g of the lithium-containing composite oxide is in a ratio of 0.1<A/B<5 based on the oil absorption B (mL/100 g) of the lithium-containing composite oxide.

Abstract: A positive active material including: a lithium-containing oxide, and a lithium-intercalatable phosphate compound disposed on the lithium-containing oxide.

Abstract: A transition metal composite hydroxide can be used as a precursor to allow a lithium transition metal composite oxide having a small and highly uniform particle diameter to be obtained. A method also is provided for producing a transition metal composite hydroxide represented by a general formula (1) MxWsAt(OH)2+?, coated with a compound containing the additive element, and serving as a precursor of a positive electrode active material for nonaqueous electrolyte secondary batteries. The method includes producing a composite hydroxide particle, forming nuclei, growing a formed nucleus; and forming a coating material containing a metal oxide or hydroxide on the surfaces of composite hydroxide particles obtained through the upstream step.

Abstract: The problem of the present invention is to provide a sodium ion battery system with high charge and discharge efficiency. The present invention solves the above-mentioned problem by providing a sodium ion battery system comprising a sodium ion battery and a charge control unit, wherein the anode active material is an active material having an Na2Ti6O13 crystal phase, the anode active material layer contains a carbon material as a conductive material, and the above-mentioned charge control unit controls electric potential of the above-mentioned anode active material higher than electric potential in which an Na ion is irreversibly inserted into the above-mentioned carbon material.

Abstract: This disclosure provides a positive electrode active lithium-excess metal oxide with composition LixMyO2 (0.6?y?0.85 and 0?x+y?2) for a lithium secondary battery with a high reversible capacity that is insensitive with respect to cation-disorder. The material exhibits a high capacity without the requirement of overcharge during the first cycles.

Abstract: A lithium secondary battery includes an anode part having lithium powder, a cathode part having a non-lithiated active material and a gel-polymer electrolyte. Thus, an effective surface area of an electrode involved in a battery reaction can increase, a dendrite growth using a gel-polymer electrode can be suppressed and a high capacity and long service life can be achieved by using a non-lithiated cathode instead of a conventional lithiated cathode.

Abstract: A rechargeable lithium battery including: a negative electrode including lithium-vanadium-based oxide, negative active material; a positive electrode including a positive active material to intercalate and deintercalate lithium ions; and an electrolyte including a non-aqueous organic solvent, and a lithium salt. The lithium salt includes 0.7 to 1.2M of a first lithium salt including LiPF6; and 0.3 to 0.8M of a second lithium salt selected from the group consisting of LiBC2O4F2, LiB(C2O4)2, LiN(SO2C2F5)2, LiN(SO2CF3)2, LiBF4, LiClO4, and combinations thereof.

Abstract: A cathode material for a lithium secondary battery, including fibrous carbon and a plurality of cathode active material particles bonded to a surface of the fibrous carbon. The cathode active material particles are composed of olivine-type LiMPO4 where M represents one or more kinds of elements selected from Fe, Mn, Ni, and Co. Also disclosed is a method of producing the cathode material and a lithium secondary battery.

Abstract: A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a layered type lithium transition metal oxide. A material of the coating layer is a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material.

Abstract: An electrode composition containing a first conducting agent and a second conducting agent, an electrode for lithium secondary batteries, a method of manufacturing the electrode, and a lithium secondary battery including the electrode. The second conducting agent is an agglomerate formed of a conducting material and a fluorine-based polymer.

Abstract: A composite cathode active material, a cathode including the same, a lithium battery including the cathode, and preparation method thereof are disclosed. The composite cathode active material includes: a core capable of intercalating and deintercalating lithium; and a crystalline coating layer disposed on at least part of a surface of the core, wherein the coating layer include a metal oxide.

Abstract: As a positive electrode active material, a material which is represented by the general formula Li(2-x)M1yM2zSiO4 and satisfies the conditions (I) to (IV) is used: (I) x is a value which changes due to insertion and extraction of a lithium ion during charging and discharging, and satisfies 0?x<2; (II) M1 is one or more transition metal atoms selected from iron (Fe), nickel (Ni), manganese (Mn), and cobalt (Co); (III) M2 is a metal atom that is titanium (Ti), scandium (Sc), or magnesium (Mg); and (IV) The formulae y+z=1, 0<y<1, and 0<z<1 are satisfied. The value of z/(y+z) is greater than or equal to 0.01 and less than or equal to 0.2.

Abstract: The present invention provides an electrode that can be used for a sodium secondary battery having a larger discharge capacity when charging and discharging are performed repeatedly than that of the prior art. This sodium secondary battery electrode contains tin (Sn) powder as an electrode active material. The electrode, particularly, further contains one or more electrode-forming agents selected from the group consisting of poly(vinylidene fluoride) (PVDF), poly(acrylic acid) (PAA), poly(sodium acrylate) (PAANa), and carboxymethylcellulose (CMC), thereby making it possible to provide a sodium secondary battery having even greater electrode performance.

Abstract: Lithium ion battery positive electrode material are described that comprise an active composition comprising lithium metal oxide coated with an inorganic coating composition wherein the coating composition comprises a metal chloride, metal bromide, metal iodide, or combinations thereof. Desirable performance is observed for these coated materials. In particular, the non-fluoride metal halide coatings are useful for stabilizing lithium rich metal oxides.

Abstract: Composite cathode active materials having a large diameter active material and a small diameter active material are provided. The ratio of the average particle diameter of the large diameter active material to the average particle diameter of the small diameter active material ranges from about 6:1 to about 100:1. Mixing the large and small diameter active materials in a proper weight ratio improves packing density Additionally, including highly stable materials and highly conductive materials in the composite cathode active materials improves volume density, discharge capacity and high rate discharge capacity.

Abstract: In an aspect, a composite anode active material including lithium titanium oxide particles; and a TiN, and TiN a method of preparing the composite anode active material, and a lithium battery including the composite anode active material is provided.

Abstract: In an aspect, a composite anode active material including a lithium titanium oxide; and phosphates, a method of preparing the composite anode active material, and a lithium battery including the composite anode active material is provided.

Abstract: Energy storage devices having hybrid anodes can address at least the problems of active material consumption and anode passivation that can be characteristic of traditional batteries. The energy storage devices each have a cathode separated from the hybrid anode by a separator. The hybrid anode includes a carbon electrode connected to a metal electrode, thereby resulting in an equipotential between the carbon and metal electrodes.

Abstract: A secondary electrochemical cell comprises an anode, a cathode including electrochemically active cathode material, a separator between the anode and the cathode, and an electrolyte. The electrolyte comprises at least one salt dissolved in at least one organic solvent. The separator in combination with the electrolyte has an area-specific resistance of less than about 2 ohm-cm2.

Abstract: Negative active materials, negative electrodes, and rechargeable lithium batteries are provided. A negative electrode according to one embodiment includes a non-carbon-based active material, a lithium salt having an oxalatoborate structure, and a high-strength polymer binder. The negative active material may include a non-carbon-based material and a coating layer on the non-carbon-based material. The coating layer includes a lithium salt having an oxalatoborate structure and a high-strength polymer binder. A rechargeable lithium battery including the negative electrode or negative active material has good cycle life characteristics and high capacity.

Abstract: A composite metal precursor including a composite metal hydroxide represented by Formula 1 below, wherein an amount of magnesium (Mg) in the composite metal hydroxide is less than or equal to 0.005 wt %, an electrode active material formed from the same, a positive electrode including the same, and a lithium secondary battery employing the same: (A1-x-yBxCy)(OH)2 ??[Formula 1] wherein in Formula 1, x, y, A, B, and C are as described in the detailed description.

Abstract: A positive electrode material for non-aqueous electrolyte secondary batteries having high rate characteristics and high energy density, and a battery using the same are provided. The non-aqueous electrolyte secondary battery includes a positive electrode containing a positive electrode material, a conductive agent and a binder; a negative electrode; a separator; and a non-aqueous electrolyte, in which the positive electrode material contains core particles and a coating material that covers from 10% to 90% of the surfaces of the core particles, the core particles are formed of a compound represented by LiaMbPO4 (wherein M represents at least one element selected from Fe, Mn, Co and Ni, and satisfies the relations: 0<a?1.1 and 0<b?1), and the coating material part is formed of a compound which is capable of insertion and extraction of Li ions in the potential range exhibited by the core particles at the time of charge and discharge.

Abstract: The invention provides a method for producing a carbon material as a negative electrode active material that can dope and undope a sodium ion. The production method of a carbon material for a sodium secondary battery includes a step of heating at a temperature of 800 to 2500° C. a compound according to Formula (1), Formula (2) or Formula (3), and having 2 or more oxygen atoms, or a mixture of an aromatic derivative 1 having an oxygen atom in the molecule and an aromatic derivative 2 having a carboxyl group in the molecule and being different from the aromatic derivative 1.

Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode contains a lithium compound and a negative electrode current collector supporting the lithium compound. A log differential intrusion curve obtained when a pore size diameter of the negative electrode is measured by mercury porosimetry has a peak in a pore size diameter range of 0.03 to 0.2 ?m and attenuates with a decrease in pore size diameter from an apex of the peak. A specific surface area (excluding a weight of the negative electrode current collector) of pores of the negative electrode found by mercury porosimetry is 6 to 100 m2/g. A ratio of a volume of pores having a pore size diameter of 0.05 ?m or less to a total pore volume is 20% or more.

Abstract: A cathode active material capable of obtaining a high capacity and capable of improving stability or low-temperature characteristics, a method of manufacturing the same, and a battery are provided. A cathode (21) includes a cathode active material including a lithium complex oxide including Li and at least one kind selected from the group consisting of Co, Ni and Mn, and P and at least one kind selected from the group consisting of Ni, Co, Mn, Fe, Al, Mg and Zn as coating elements on a surface of the lithium complex oxide. Preferably, the contents of the coating elements are higher on the surface of the cathode active material than those in the interior thereof, and decrease from the surface to the interior.

Abstract: Embodiments of the present invention are directed to negative active materials for rechargeable lithium batteries including lithium titanium oxides. The lithium titanium oxide has a full width at half maximum (FWHM) of 2? of about 0.08054° to about 0.10067° at a (111) plane (main peak, 2?=18.330°) as measured by XRD using a Cu K? ray.

Abstract: The battery has an electrolyte activating one or more anodes and one or more cathodes. At least one of the one or more cathodes includes or consists of one or more first active materials selected from the group consisting of: fluorinated carbon (CFx),CuCl2, and LiCuCl2; and includes or consists of one or more second active materials selected from the group consisting of lithium vanadium oxide, such as Li1+yV3O8, where y is greater than zero and/or less than 0.3, TiS2, polypyrrole, MoO2, MoS2, MnO2, V2O5, V6O13, H2V3O8, and metal vanadium oxides represented by MyH1?yV3O8 where 0<y?1 and M represents Na, Mg, Ba, K, Co, and Ca and combinations thereof.

Abstract: Negative active materials, negative electrodes, and rechargeable lithium batteries are provided. A negative electrode according to one embodiment includes a non-carbon-based active material, a lithium salt having an oxalatoborate structure, and a high-strength polymer binder. The negative active material may include a non-carbon-based material and a coating layer on the non-carbon-based material. The coating layer includes a lithium salt having an oxalatoborate structure and a high-strength polymer binder. A rechargeable lithium battery including the negative electrode or negative active material has good cycle life characteristics and high capacity.

Abstract: An electrochemically active material comprising a mixture or blend of two groups of particles, exhibits synergetic effect. The two groups of particles are compounds of formula LixHyV3O8 and compounds of formula LixMyPO4 wherein M is one or more transition metals, comprising at least one metal which is capable of undergoing oxidation to a higher valence state. In order to obtain a synergistic effect, the particles of formula (I) and the particles of formule (II) are present in amounts of 5:95% by weight to 95:5% by weight.