Abstract: A negative electrode active material layer 3 containing at least one element selected from the group consisting of silicon, germanium, and tin is formed on a negative electrode collector 1. A negative electrode 11 is prepared by forming a lithium metal layer on the negative electrode active material layer 3. Also prepared is a positive electrode 11 having a configuration in which a positive electrode active material layer 6 containing a composite oxide represented by a general formula Li1-xMO2, where 0.2?x?0.6, and M includes at least one transition metal selected from the group consisting of cobalt, nickel, and manganese, is formed on a positive electrode current collector 5. A lithium secondary battery 100 is assembled from the negative electrode 13, the positive electrode 11, and a separator 4.

Abstract: Methods and apparatus for forming energy storage devices are provided. In one embodiment a method of producing an energy storage device is provided. The method comprises positioning an anodic current collector into a processing region, depositing one or more three-dimensional electrodes separated by a finite distance on a surface of the anodic current collector such that portions of the surface of the anodic current collector remain exposed, depositing a conformal polymeric layer over the anodic current collector and the one or more three-dimensional electrodes using iCVD techniques comprising flowing a gaseous monomer into the processing region, flowing a gaseous initiator into the processing region through a heated filament to form a reactive gas mixture of the gaseous monomer and the gaseous initiator, wherein the heated filament is heated to a temperature between about 300° C. and about 600° C., and depositing a conformal layer of cathodic material over the conformal polymeric layer.

Abstract: An example of a lithium ion battery electrode material includes a substrate, and a substantially graphitic carbon layer completely encapsulating the substrate. The substantially graphitic carbon layer is free of voids. Methods for making electrode materials are also disclosed herein.

Abstract: Disclosed herein is a positive electrode active material prepared by mixing a lithium-containing compound, a compound containing a transition metal to be put into a solid solution, and a compound containing a metallic element M2 different from the transition metal, and firing the mixture to form composite oxide particles, depositing a compound containing at least one element selected from among sulfur (S), phosphorus (P) and fluorine (F) on surfaces of the particles, and firing the particles, whereby each of the particles is provided with a concentration gradient such that the concentration of the metallic element M2 increases from the center toward the surface of the particle, and at least one element selected from among (S), (P) and (F) is made present in the form of being aggregated at the surfaces of the composite oxide particles.

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: A lithium-sulfur cell comprising an anode structure, a cathode structure and an electrolyte section abutting to the cathode structure. The cathode structure comprises a continuous layer of nanotubes or nanowires and sulfur particles. The sulfur particles are attached to the nanotubes or nanowires. The continuous layer of nanotubes or nanowires abuts to at least a part of the electrolyte section. The invention further relates to a corresponding method for manufacturing the inventive cell.

Abstract: According to one embodiment, a non-aqueous electrolyte secondary battery is provided. A negative electrode layer in the battery includes a lithium titanium oxide, and has first region(s) and a second region on a surface. The first region(s) is/are surrounded by the second region and have a lower lithium concentration. The second region has a higher lithium concentration. The negative electrode layer satisfies the formula (I): T2<T1 (I). T1 is a proportion of tetravalent titanium atoms in titanium atoms in the lithium titanium oxide comprised in the first region. T2 is a proportion of tetravalent titanium atoms in titanium atoms in the lithium titanium oxide comprised in the second region.

Abstract: A negative active material, an electrode including the same, and a lithium battery including the electrode. The negative active material has no volumetric expansion and has high solubility with respect to lithium. In addition, the negative active material is in the form of spherical particles, and thus does not require a separate granulating process. Moreover, the negative active material may enhance the capacity of a lithium battery.

Abstract: The present invention relates to dual-layered structured sulfur cathodes comprising (a) an electroactive layer and (b) a non-electroactive conductive layer, wherein the non-electroactive conductive layer adsorbs soluble polysulfides and provides reaction sites for the reduction of polysulfides. The present invention also relates to method of making dual-layered structured sulfur cathodes and electrochemical cells.

Abstract: An object of the present invention is to provide a positive electrode active material for a nonaqueous electrolyte secondary battery etc. which are capable of suppressing the generation of gas during charge by suppressing a reaction between a positive electrode and an electrolyte decomposition product moved from a negative electrode and a reaction between the positive electrode and the electrolyte, and which are thereby capable of significantly improving battery characteristics such as cycling characteristics. The positive electrode active material includes a compound composed of sodium, fluorine, and erbium and adhered to a surface of lithium cobalt oxide, and can be produced by adding, while adjusting pH, an aqueous solution prepared by dissolving erbium nitrate pentahydrate to a suspension containing lithium cobalt oxide and sodium fluoride.

Abstract: An object of the present invention is to provide a positive electrode active material for a nonaqueous electrolyte secondary battery etc. which are capable of suppressing a reaction between a positive electrode and an electrolyte decomposition product moved from a negative electrode and a reaction between the positive electrode and the electrolyte, and which are thereby capable of significantly improving battery characteristics such as continuous charge characteristics (particularly, continuous charge characteristics at a high temperature), cycling characteristics, etc. The positive electrode active material includes a compound containing a rare earth element and fluorine and adhered to a surface of a lithium transition metal composite oxide, the compound having an average particle diameter of 1 nm or less and 100 nm or more.

Abstract: The invention provides a closed type battery comprising a battery element covered with a covering film and a heat fusion seal portion formed by heat fusion on a periphery of the covering film, wherein the cleaving strength upon an internal pressure rise of a seal portion positioned between a positive electrode terminal and a negative electrode terminal is larger than that of any other seal portion, and a safety valve adapted to release pressure upon a battery's internal pressure rise is located at a portion other than said inter-terminal seal portion. The invention also provides an assembled battery wherein a plurality of closed type batteries are stacked one upon another while a safety valve adapted to release pressure upon an increase in the internal pressure of the battery is located at a position in no contact with the covering film surface of an adjoining battery.

Abstract: An object of the present invention is to simplify the process of producing an electrode composite material. Disclosed is a method for producing an electrode composite material, comprising the steps of: preparing a material comprising Li, La, Ti and O and heating the material, wherein the composition ratio between Li, La and Ti of the material is in the range of a triangle having three vertices at LiO0.5:LaO1.5:TiO2=23:24:53, LiO0.5:LaO1.5:TiO2=5:36:59 and LiO0.5:LaO1.5:TiO2=8:28:64 in the LiO0.5—LaO1.5—TiO2 triangular diagram.

Abstract: Disclosed is an anode active material comprising a lithium metal oxide represented by the following Formula 1, wherein the anode active material is surface-coated with a silane compound and a silicon content of the silane compound is 0.01 to 5% by weight, based on the total amount of the anode active material: LiaM?bO4?cAc??(1) wherein M? is at least one element selected from the group consisting of Ti, Sn, Cu, Pb, Sb, Zn, Fe, In, Al and Zr; a and b are determined according to an oxidation number of M? within ranges of 0.1?a?4 and 0.2?b?4; c is determined according to an oxidation number within a range of 0?c<0.2; and A is at least one monovalent or bivalent anion. Disclosed is also a secondary battery comprising the same.

Abstract: A lithium secondary battery according to the present invention includes a positive electrode containing a positive electrode active material capable of occluding/releasing lithium ions; a negative electrode containing a negative electrode active material capable of occluding/releasing lithium ions; a separator located between the positive electrode and the negative electrode; and an electrolyte having a lithium ion conductivity. The positive electrode active material contains a lithium nickel complex oxide substantially having an irreversible capacity; the negative electrode active material has lithium occluded thereto in advance; and in a completely discharged state of the lithium secondary battery when an environmental temperature is 25° C., an amount of lithium releasable from the negative electrode is larger than an irreversible capacity of the lithium secondary battery.

Abstract: Disclosed is a method for carbon coating on lithium titanium oxide-based anode active material nanoparticles. The method includes (a) introducing a lithium precursor solution, a titanium precursor solution and a surface modifier solution into a reactor, and reacting the solutions under supercritical fluid conditions to prepare a solution including nanoparticles of an anode active material represented by Li4Ti5O12, (b) separating the anode active material nanoparticles from the reaction solution, and (c) calcining the anode active material nanoparticles to uniformly coat the surface of the nanoparticles with carbon. Further disclosed are carbon-coated lithium titanium oxide-based anode active material nanoparticles produced by the method. In the anode active material nanoparticles, lithium ions are transferred rapidly. In addition, the uniform carbon coating ensures high electrical conductivity, allowing the anode active material nanoparticles to have excellent electrochemical properties.

Abstract: Disclosed are (1) a nonaqueous electrolytic solution for lithium battery comprising an electrolyte dissolved in a nonaqueous solvent, which contains at least one hydroxy acid derivative compound represented by the formulae (I) and (II) in an amount of from 0.

Abstract: A monolithic three-dimensional electrochemical energy storage system is provided on an aerogel or nanotube scaffold. An anode, separator, cathode, and cathodic current collector are deposited on the aerogel or nanotube scaffold.

Abstract: Provided are negative electrode compositions for lithium-ion electrochemical cells that include metal oxides and polymeric binders. Also provided are electrochemical cells and battery packs that include electrodes made with these compositions.

Abstract: A method for preparing a electrode composite material includes providing an aluminum nitrate solution and introducing a number of electrode active material particles into the aluminum nitrate solution, mixing the plurality of electrode active material particles with the aluminum nitrate solution to form a mixture, and adding a phosphate solution into the mixture to react with the aluminum nitrate solution and form an aluminum phosphate layer on surfaces of the electrode active material particles. Lastly, the electrode active material particles with the aluminum phosphate layer formed on the surfaces thereof are heat treated.

Abstract: Provided are an electrode active material having a plurality of pores and a secondary battery including the same, and more particularly, a porous electrode active material including silicon-based oxide expressed by SiOx (0.5?x?1.2) and having a Brunauer, Emmett, and Teller (BET) specific surface area ranging from 2 m2/g to 100 m2/g, and a secondary battery including a cathode including a cathode active material, a separator, an anode including an anode active material, and an electrolyte, in which the anode active material includes a porous electrode active material including silicon-based oxide expressed by SiOx (0.5?x?1.2) and having a BET specific surface area ranging from 2 m2/g to 100 m2/g.

Abstract: A process of producing positive electrode active material particles for a battery, comprising a step of providing a slurry comprising resin particles, a cationic surfactant and/or a polyvinyl alcohol derivative, lithium complex oxide particles, and a polar solvent; removing the polar solvent from the slurry to give a composition; and firing the composition and at the same time, removing the resin particles from the composition, wherein the cationic surfactant is a quaternary ammonium salt, the polyvinyl alcohol derivative is a polyvinyl alcohol into which a quaternary ammonium salt group has been introduced or which has been substituted by a quaternary ammonium salt group, and the resin particles have an average particle size of 0.1 to 20 ?m.

Abstract: A composite Li1+xMn2?x?yMyO4 cathode material stabilized by treatment with a second transition metal oxide phase that is highly suitable for use in high power and energy density Li-ion cells and batteries. A method for treating a Li1+xMn2?x?yMyO4 cathode material utilizing a dry mixing and firing process.

Abstract: A non-aqueous electrochemical cell is disclosed having a heat-resistant coating on at least one of a negative electrode, a positive electrode, and a separator, if provided. The heat-resistant coating may consume heat in the cell to stabilize the cell, act as an electrical insulator to prevent the cell from short circuiting, and increase the mechanical strength and compression resistance of the coated component. In certain embodiments, the heat-resistant coating serves as a solid state electrolyte to produce a solid state electrochemical cell.

Abstract: A positive electrode active material having a lithium-excess lithium-transition metal composite oxide particle represented by the chemical formula Li1.2Mn0.54Ni0.13Co0.13O2. The lithium-excess lithium-transition metal composite oxide particle has an inner portion (1) having a layered structure and a surface adjacent portion (2) having a crystal structure gradually changing from a layered structure to a spinel structure from the inner portion (1) toward the outermost surface portion (3). The layered structure and the spinel structure have an identical ratio of the amount of Mn and the total amount of Ni and Co.

Abstract: Disclosed are an anode active material for secondary batteries, capable of intercalating and deintercalating ions, the anode active material including a core including a crystalline carbon-based material, and a composite coating layer including one or more materials selected from the group consisting of low crystalline carbon and amorphous carbon, and a hydrophilic material containing oxide capable of intercalating and deintercalating ions, wherein the composite coating layer includes a matrix comprising one component selected from (a) the one or more materials selected from the group consisting of low crystalline carbon and amorphous carbon and (b) the hydrophilic material containing oxide capable of intercalating and deintercalating ions, and a filler including the other component, incorporated in the matrix, and a secondary battery including the anode active material.

Abstract: A solid electrolyte cell includes: a positive electrode side layer having a positive electrode active material layer; a negative electrode side layer; and a solid electrolyte layer formed between the positive electrode side layer and the negative electrode side layer, wherein the positive electrode active material layer contains a lithium phosphoric acid compound which is in an amorphous state and is represented by the following formula (1), LixCuyPO4??(1) where x indicates the compositional ratio of lithium, and y indicates the compositional ratio of copper, x and y being in the ranges of 1.0?x?5.0 and 1.0?y?4.0, respectively.

Abstract: A lithium-titanium complex oxide containing Li4Ti5O12 is characterized in that, based on SEM observation, the number-based percentage of particles whose size is less than 0.1 ?m is 5 to 15% or 40 to 65%, the number-based percentage of particles whose size is 0.3 to 1.5 ?m is 15 to 30%, the specific surface area measured by the BET method is 5.8 to 10.1 m2/g, and the average particle size D50 according to the particle size distribution measured by laser diffraction measurement is preferably 0.6 to 1.5 ?m.

Abstract: A lithium-ion cell comprising: (A) a cathode comprising graphene as the cathode active material having a surface area to capture and store lithium thereon and wherein said graphene cathode is meso-porous having a specific surface area greater than 100 m2/g; (B) an anode comprising an anode active material for inserting and extracting lithium, wherein the anode active material is mixed with a conductive additive and/or a resin binder to form a porous electrode structure, or coated onto a current collector in a coating or thin film form; (C) a porous separator disposed between the anode and the cathode; (D) a lithium-containing electrolyte in physical contact with the two electrodes; and (E) a lithium source disposed in at least one of the two electrodes when the cell is made. This new Li-ion cell exhibits an unprecedentedly high energy density.

Abstract: In some aspects, a composite electrode active material including a core capable of intercalating and deintercalating lithium and a coating layer formed on at least a part of the surface of the core, wherein the coating layer includes a porous carbonaceous material is provided.

Abstract: The present invention provides an electrode material in which unevenness in a supporting amount of a carbonaceous film is less when using an electrode-active material having a carbonaceous film on a surface thereof as the electrode material, and which is capable of improving conductivity, and a method for producing the electrode material. The electrode material includes an aggregate formed by aggregating an electrode-active material in which a carbonaceous film is formed on a surface. In the electrode material, an average particle size of the aggregate is 0.5 to 100 ?m, a volume density of the aggregate is 50 to 80 vol % of a volume density in a case in which the aggregate is a solid, and 80% or more of the surface of the electrode-active material is covered with the carbonaceous film. Alternatively, the electrode material includes an aggregate formed by aggregating electrode-active material particles in which a carbonaceous film is formed on a surface.

Abstract: A nonaqueous electrolyte battery, containing a case and provided in the case, a positive electrode containing at least one selected from the group consisting of spinel type lithium-manganese-nickel composite oxide and lithium phosphate oxide having an olivine structure, a negative electrode and a nonaqueous electrolyte. The negative electrode comprises a lithium-titanium composite oxide, wherein a crystallite diameter of the lithium-titanium composite oxide is not larger than 6.9×102 {acute over (?)}. The lithium-titanium composite oxide comprises: rutile TiO2; anatase TiO2; Li2TiO3; and a lithium titanate having a spinel structure. A main peak intensity relative to lithium titanate set at 100, as determined by X-ray diffractometry, of each of lithium titanate having a spinel structure, the rutile TiO2, the anatase TiO2 and Li2TiO3 is not larger than 7.

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: Positive electrode active materials are formed with various metal oxide coatings. Excellent results have been obtained with the coatings on lithium rich metal oxide active materials. Surprisingly improved results are obtained with metal oxide coatings with lower amounts of coating material. High specific capacity results are obtained even at higher discharge rates.

Abstract: An object of the present invention is to provide a high-capacity, low cycle deterioration lithium secondary battery in which the positive electrode is provided with a titanium composite oxide such as Li2NiTiO4. A lithium secondary battery 100 provided by the present invention includes a positive electrode 10 and a negative electrode 20. The positive electrode 10 has a solid solution between Li2M1TiO4 (where M1 is at least one metal element selected from the group consisting of Mn, Fe, Co, and Ni) and LiM2O2 (where M2 is at least one metal element selected from the group consisting of Mn, Co, and Ni).

Abstract: The invention provides a method for manufacturing a battery electrode having a configuration in which an electrode active material layer including an electrode active material is held on an electrode collector. The method includes a step of mixing the electrode active material with a solvent and preparing an electrode active material paste (step S10), a step of admixing and dispersing microbubbles in the prepared electrode active material paste to obtain a low-density electrode active material paste that has a density lower than that before the admixing (step S20), and a step of coating the electrode collector with the low-density electrode active material paste (step S30).

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: A nonaqueous electrolytic solution that provides a lithium secondary battery with excellent electrical capacity, cycling properties, storage properties and other battery characteristics and that maintains the battery characteristics for a long time; and a lithium secondary battery comprising it. A nonaqueous electrolytic solution comprising an electrolytic salt dissolved in a nonaqueous solvent, containing 0.1 to 10% by weight of an ethylene carbonate derivative represented by the general formula (I), and 0.

Abstract: The present invention provides a non-aqueous electrolyte secondary battery including: a positive electrode including a first active material capable of occluding and releasing a lithium ion and a second active material capable of occluding and releasing an anion; a negative electrode including a negative electrode active material capable of occluding and releasing a lithium ion; and an electrolyte containing a salt of a lithium ion and the anion. The second active material is a polymer having a tetrachalcogenofulvalene skeleton in a repeating unit. According to the present invention, provided is a non-aqueous electrolyte secondary battery with improved output characteristics, in particular, a pulse discharge characteristic, without a significant decrease in energy density.

Abstract: A method of manufacture an article of a cathode (positive electrode) material for lithium batteries. The cathode material Is a lithium molybdenum composite transition, metal oxide material and is prepared by mixing in a solid state m intermediate molybdenum composite transition metal oxide and a lithium source. The mixture is thermally treated to obtain me lithium molybdenum composite transition metal oxide cathode material.

Abstract: The present invention relates to nonaqueous electrolyte secondary batteries and durable anode materials and anodes for use in nonaqueous electrolyte secondary batteries. The present invention also relates to methods for producing these anode materials. In the present invention, a metal-semiconductor alloy layer is formed on an anode material by contacting a portion of the anode material with a displacement solution. The displacement solution contains ions of the metal to be deposited and a dissolution component for dissolving a part of the semiconductor in the anode material. When the anode material is contacted with the displacement solution, the dissolution component dissolves a part of the semiconductor in the anode material thereby providing electrons to reduce the metal ions and deposit the metal on the anode material. After deposition, the anode material and metal are annealed to form a uniform metal-semiconductor alloy layer.

Abstract: Disclosed is a non-aqueous electrolyte including an electrolyte salt and an electrolyte solvent, the non-aqueous electrolyte further including a compound containing both a carboxy group and a (meth)acrylic group, and a secondary battery including the non-aqueous electrolyte. The use of the compound containing both the carboxy group and the (meth)acrylic group as a component for an electrolyte significantly reduces the increase of battery thickness at high temperature storage.

Abstract: The present invention relates to separators for electrochemical cells comprising (A) at least one layer comprising (a) crosslinked polyvinylpyrrolidone in the form of particles, (b) at least one binder, and (c) optionally a base structure, where the mass ratio of the crosslinked polyvinylpyrrolidone in the form of particles (a) to the sum of the mass of the binders (b) in the layer (A) has a value in the range from 99.9:0.1 to 50:50. The present invention further relates to the use of inventive separators and to apparatuses, especially electrochemical cells, comprising inventive separators.

Abstract: According to one embodiment, a non-aqueous electrolyte battery includes an outer package, a positive electrode housed in the outer package, a negative electrode housed with a space from the positive electrode in the outer package and including an active material, and a non-aqueous electrolyte filled in the outer package. The active material includes a lithium-titanium composite oxide particle, and a coating layer formed on at least a part of the surface of the particle and including at least one metal selected from the group consisting of Mg, Ca, Sr, Ba, Zr, Fe, Nb, Co, Ni, Cu and Si, an oxide of at least one metal selected from the group or an alloy containing at least one metal selected from the group.

Abstract: The present invention relates to a particulate lithium transition metal phosphate with a homogeneous carbon coating deposited from the gas phase with as well as a process for its manufacture. The invention further relates the use of a carbon coated lithium transition metal phosphate as active material in an electrode, especially in a cathode.

Abstract: A battery having the electrodes of multiple cell types interleaved to prevent thermal runaway by cooling a shorted region between electrodes. The battery includes multiple cell types where each cell type has multiple electrodes a first polarity. The electrodes of each of the cell types share a pair of the common electrodes having a second polarity. The electrodes of the multiple cell types and the multiple common electrodes are interleaved such that if the electrodes of the multiple cell types and the adjacent common electrodes of one or more cell types short together, the current within the shorted cells is sufficiently small to prevent thermal runaway and the electrodes of the adjacent cells of the other cell types of the first polarity and the common electrodes of the second polarity not having short circuits provide heat sinking for the heat generated by the short circuit to prevent thermal runaway.

Abstract: A secondary battery includes: a cathode; an anode; and an electrolytic solution. The cathode includes two or more kinds of lithium transition metal complex phosphate particles including lithium and one or two or more transition metals as constituent elements, and the composition of the one or two or more transition metals differs between the two or more kinds of lithium transition metal complex phosphate particles.

Abstract: A multilayer material including a solid substrate and at least two superimposed solid layers containing particles of an electrochemically active material, the first solid layer adhering to the solid substrate and the second solid layer adhering to the first solid layer. The multilayer material has a constant thickness of upper layer not less than 95% and a depth of penetration of the second layer into the first layer which is less than 10% of the thickness of the first layer, and enables as electrode constituent, generators having a low risk of overload degradation to be prepared.

Abstract: A secondary battery according to the present invention has a current collector and a positive electrode mixture layer that coats the current collector. The positive electrode mixture layer includes a positive electrode active material, an electrically conductive material, and a binder, and the positive electrode active material is constituted by hollow-structure secondary particles formed by the aggregation of a plurality of primary particles of a lithium transition metal oxide and has a through hole penetrating from outside to a hollow portion. In addition, a particle porosity A1 of the positive electrode active material satisfies 2.0(%)?A1?70(%). Furthermore, a DBP absorption A2 of the positive electrode active material satisfies 23 (mL/100 g)?A2. Moreover, the tap density A3 of the positive electrode active material satisfies 1.0 (g/mL)?A3?1.9 (g/mL).

Abstract: According to one embodiment, there is provided a active material for a battery including a complex oxide containing niobium and titanium. A ratio MNb/MTi of a mole of niobium MNb to a mole of titanium MTi in the active material satisfies either the following equation (I) or (II). 0.