Abstract: The present disclosure relates to a ternary positive electrode material and a battery using the ternary positive electrode material. The ternary positive electrode material includes secondary particles composed of primary particles. The secondary particles have an average particle diameter D50 of 6 ?m-20 ?m, BET of 0.2 m2/g-1 m2/g, and the number ? of primary particles per unit area of the secondary particles is 5 particles/?m2-100 particles/?m2. The ternary positive electrode material has a formula of Li1+a[NixCoyMnzM1bM2c]O2?dNd, where element M1 and element M2 are each independently selected from at least one of Al, Zr, Ti, Mg, Zn, B, Ca, Ce, Te and Fe, element N is selected from at least one of F, Cl and S, and 0<x<1, 0<y?0.3, 0?z?0.3, ?0.1<a<0.2, 0?b<0.3, 0?c<0.3, 0?d<0.2, 0?b+c?0.3, x+y+z+b=1. The formed secondary particles have high compactness, thereby effectively improving the structural stability and the cycling performance at high or low temperature.

Abstract: Provided herein are a positive electrode for a secondary battery and a secondary battery including the same. The positive electrode includes a positive electrode active material layer including a positive electrode active material, a conductive material, and a dispersant, wherein the conductive material includes bundle-type carbon nanotubes, units of which have an average strand diameter of 15 nm or less, and the positive electrode active material layer has a packing density of 3.0 g/cc or more, and has an average pore diameter of 0.1 ?m to 0.5 ?m at the packing density when a pore size distribution is measured by mercury intrusion porosimetry, and thus may exhibit excellent electrolyte wetting properties. As a result, when the positive electrode is applied to a battery, wetting time of the positive electrode is shortened, and an area of the positive electrode that is not filled with an electrolyte is reduced, resulting in enhanced battery performance.

Abstract: Provided are a cathode active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery including a cathode including the cathode active material. The cathode active material includes: a secondary particle of a nickel-based active material, wherein the secondary particle including a plurality of primary particles, wherein the secondary particle includes a radial arrangement structure and an irregular porous structure, the radial arrangement structure is located closer to a surface of the secondary particle than the irregular porous structure, and a lithium fluoride-based compound is present on a surface of the nickel-based active material.

Abstract: Provided are a nickel-based active material precursor for a lithium secondary battery including a porous core and a shell on the porous core, the shell having a radial arrangement structure with a higher density than that of the porous core, wherein the nickel-based active material precursor have a size of 9 ?m to 14 ?m, and the porous core has a volume of about 5% by volume to about 20% by volume based on the total volume of the nickel-based active material precursor; a method of preparing the nickel-based active material precursor; a nickel-based active material produced from the nickel-based active material; and a lithium secondary battery including a cathode containing the nickel-based active material.

Abstract: A method for manufacturing a nickel-metal hydride battery includes: a first step of preparing a first nickel-metal hydride battery having a positive electrode including nickel hydroxide (Ni(OH)2); and a second step of manufacturing the second nickel-metal hydride battery by performing 600% overcharging to the prepared first nickel-metal hydride battery. The 600% overcharging is a process for supplying the first nickel-metal hydride battery with an amount of electric power of 600% of the rated capacity of the first nickel-metal hydride battery.

Abstract: A negative electrode including a lithium metal layer, a lithium nitride thin film layer formed on at least one surface of the lithium metal layer, and a carbon-based thin film layer formed on the lithium nitride thin film layer, a method for preparing the same, and a lithium secondary battery including the same. A lithium nitride thin film layer and a carbon-based thin film layer formed on a lithium metal layer obtains current density distribution uniformly by blocking side reactions caused by a direct contact between the lithium metal layer and an electrolyte as well as increasing a specific surface area of a negative electrode, and enhances cycle performance and reduces an overvoltage by suppressing lithium dendrite formation to improve electrochemical performance of a lithium secondary battery.

Abstract: An object of the present invention is to provide a positive electrode material for a nonaqueous electrolyte secondary battery, which is capable of inhibiting the gelation of a positive electrode composite material paste without decreasing the charge and discharge capacity and the output characteristics, when used as a positive electrode material for batteries. The positive electrode active material for a nonaqueous electrolyte secondary battery comprises a mixture containing a lithium metal composite oxide represented by a general formula LiaNi1-x-y-zCoxMnyMzO2 (wherein, 0.03?x?0.35, 0?y?0.35, 0?z?0.05, 0.97?a?1.30, and M is at least one type of element selected from V, Fe, Cu, Mg, Mo, Nb, Ti, Zr, W and Al) and an ammonium tungstate powder, wherein when 5 g of the positive electrode material is mixed with 100 ml of pure water, the mixture is stirred for 10 minutes and then left to stand for 30 minutes, and then the pH of a supernatant fluid at 25° C. was measured, the pH ranges from 11.2 to 11.8.

Abstract: Disclosed is a zinc ion secondary battery. More particularly, the zinc ion secondary battery includes a first electrode; a second electrode; and an electrolyte disposed between the first electrode and the second electrode, wherein an active material included in the first electrode is an alkali metal-vanadium oxide/graphene oxide composite, wherein the alkali metal-vanadium oxide has a layered structure in which alkali metal layers and vanadium oxide layers are alternately stacked. Accordingly, a zinc ion battery system including the K2V3O8/a graphene oxide composite as an electrode active material can exhibit excellent rechargeability and have a high discharge capacity and an excellent capacity retention rate.

Abstract: Composites comprising anode and cathode active materials conformally coupled to few-layered graphene, corresponding electrodes and related methods of preparation.

Abstract: The present invention provides a positive electrode active material for a secondary battery, the positive electrode active material being a primary particle having a monolithic structure that includes a lithium composite metal oxide of Formula 1 below, wherein the primary particle has an average particle size (D50) of 2 ?m to 20 ?m and a Brunauer-Emmett-Teller (BET) specific surface area of 0.15 m2/g to 1.9 m2/g, and a secondary battery including the same.

Abstract: A continuous process for producing a material of a battery cell using a system having a mist generator, a drying chamber, one or more gas-solid separators and a reactor is provided. A mist generated from a liquid mixture of two or more metal precursor compounds in desired ratio is dried inside the drying chamber. Heated air or gas is served as the gas source for forming various gas-solid mixtures and as the energy source for reactions inside the drying chamber and the reactor. One or more gas-solid separators are used in the system to separate gas-solid mixtures from the drying chamber into solid particles mixed with the metal precursor compounds and continuously deliver the solid particles into the reactor for further reaction to obtain final solid material particles with desired crystal structure, particle size, and morphology.

Abstract: An electrode material includes a lithium active material composition. The lithium active material composition includes lithium and an active anode material. The lithium active material composition is coated with a lithium ion conducting passivating material, such that the electrode material is lithiated and pre-passivated. An electrode and a battery are also disclosed. Methods of making an electrode material, electrode and battery that are lithiated and pre-passivated are also disclosed.

Abstract: The present invention relates to a battery, comprising a positive electrode plate, a separator and a negative electrode plate, wherein the positive electrode plate comprises a positive electrode current collector and at least two layers of positive active materials on at least one surface of the positive electrode current collector in which the underlying positive active material layer in contact with the positive electrode current collector comprises a first positive active material, a first polymer material, and a first conductive material and in which the upper positive active material layer comprises a second positive active material, a second polymer material, and a second conductive material and the first polymer material comprises an oil-dispersible polymer material having a solubility in NMP at 130° C. for 5 minutes, which is 30% or less of the solubility of PVDF under the same conditions. The battery exhibits good safety performance and improved electrical performance.

Abstract: In one aspect, a battery includes at least one anode, at least one cathode, and electrolyte between the at least one anode and at least one cathode. The at least one cathode comprises at least a first charging material and at least a second charging material different from the first material.

Abstract: Provided are a cathode active material having a suitable particle size and high uniformity, and a nickel composite hydroxide as a precursor of the cathode active material. When obtaining nickel composite hydroxide by a crystallization reaction, nucleation is performed by controlling a nucleation aqueous solution that includes a metal compound, which includes nickel, and an ammonium ion donor so that the pH value at a standard solution temperature of 25° C. becomes 12.0 to 14.0, after which, particles are grown by controlling a particle growth aqueous solution that includes the formed nuclei so that the pH value at a standard solution temperature of 25° C. becomes 10.5 to 12.0, and so that the pH value is lower than the pH value during nucleation.

Abstract: The present invention relates to a positive electrode active material for a lithium secondary battery including a lithium cobalt oxide having a core-shell structure, wherein the lithium cobalt-doped oxide of the core and the lithium cobalt-doped oxide of the shell include each independently three kinds of dopants and satisfy specific conditions, a method for producing the same, and a positive electrode and a secondary battery containing the positive electrode active material.

Abstract: Provided is a positive electrode active material for nonaqueous electrolyte secondary batteries that is represented by the general formula (1): LiaNi1-x-yCoxMyWzO2+? (where 0?x?0.35, 0?y?0.35, 0.0008?z?0.030, 0.97?a?1.25, and 0???0.20, and M is at least one element selected from Mn, V, Mg, Mo, Nb, Ti, and Al) and is constituted by a Li-metal composite oxide composed of primary particles and secondary particles formed by aggregation of the primary particles, wherein a compound including Li and W is formed on the surface of the primary particles of the composite oxide and the amount of W contained in the compound is such that the number of atoms of W is 0.08 to 0.30 at % with respect to the total number of atoms of Ni, Co, and M contained in the positive electrode active material.

Abstract: A battery includes a positive electrode, a negative electrode, and an electrolyte. The positive electrode includes LixAl2(OH)7-y.zH2O where 0.9<x<1.1, ?0.1<y<0.1, 0?z<2.1.

Abstract: There is provided a lithium ion secondary battery having excellent cycle characteristics at a high temperature and comprising lithium nickel composite oxides, in which the Ni content is high, in a positive electrode. The present invention relates to a lithium ion secondary battery having a positive electrode, a negative electrode and an electrolyte solution, wherein the positive electrode comprises a lithium nickel complex oxide denoted by the general formula, LiNixCoyMnzO2, wherein x, y, and z are respectively 0.75?x?0.85, 0.05?y?0.15, and 0.10?z?0.20.

Abstract: A compound having a layered structure that is used for a positive electrode active material for a lithium ion secondary battery achieves both a high energy density and a high cyclability. The positive electrode active material for a lithium ion secondary battery contains a compound having a layered structure belonging to a space group R-3m, in which the compound having a layered structure is represented by a compositional formula: Li1+aM1O2+? wherein M1 represents a metal element or metal elements other than Li, and contains at least Ni, ?0.03?a?0.10, and ?0.1<?<0.1, a proportion of Ni in M1 is larger than 70 atom %, and a site occupancy of a transition metal or transition metals at a 3a site obtained by structural analysis by a Rietveld method is less than 2%, and a content of residual lithium hydroxide in the positive electrode active material is 1 mass % or less.

Abstract: The invention relates to a method for producing an electrode stack for a battery cell, comprising the following steps: providing a strip-shaped anode element (45) comprising an anodic current discharger (31) to which an anodic active material (41) is applied; providing a strip-shaped cathode element (46) comprising a cathodic current discharger (32) to which a cathodic active material (42) is applied; providing at least one strip-shaped separator element (16); introducing grooves (70) into the cathodic active material (42) around segmentation lines (S); generating a strip-shaped composite element (50) by applying the cathode element (46) onto the anode element (45), with the interposition of the at least one separator element (16); cutting the composite element (50) into plate-shaped composite segments at the segmentation lines (S); and stacking the composite segments.

Abstract: The invention relates to doped nickelate-containing compounds comprising AaM1VM2WM3XM4yM5ZO2-c wherein A comprises either sodium or a mixed alkali metal in which sodium is the major constituent; M1 is nickel in oxidation state greater than 0 to less than or equal to 4+, M2 comprises a metal in oxidation state greater than 0 to less than or equal to 4+, M3 comprises a metal in oxidation state 2+, M4 comprises a metal in oxidation state greater than 0 to less than or equal to 4+, and M5 comprises a metal in oxidation state 3+ wherein 0?a<1, v>0, at least one of w and y is >0 x?0, z?0 wherein c is determined by a range selected from 0<c?0.1 and wherein (a, v, w, x, y, z and c) are chosen to maintain electroneutrality.

Abstract: A method for producing a positive electrode material for non-aqueous secondary batteries includes: performing a heat treatment on zirconium boride particles in an oxygen-containing atmosphere at a heat treatment temperature of not less than 220° C. and not more than 390° C., thereby obtaining heat-treated particles; and mixing the heat-treated particles with a positive electrode active material which contains a lithium transition metal complex oxide particles including at least one of cobalt and nickel in a composition thereof and having a layered structure, such that a content of the heat-treated particles relative to the lithium transition metal complex oxide particles is, as zirconium, not less than 0.25 mol % and not more than 2.2 mol %, thereby obtaining a positive electrode material for non-aqueous secondary batteries.

Abstract: The present invention relates to an electrolyte solution comprising a supporting salt, a nonaqueous solvent containing a compound having a viscosity of 1.0 mPa-s or less in an amount of more than 50% by volume in the nonaqueous solvent, and a halogenated cyclic acid anhydride. According to the present invention, an electrolyte solution capable of suppressing gas generation is provided.

Abstract: A positive electrode active material for a nonaqueous electrolyte secondary battery is provided, which can establish both high capacity and high output when used for a positive electrode material. A positive electrode active material for a nonaqueous electrolyte secondary battery comprises primary particles of a lithium-nickel composite oxide represented by the following general formula (1) and secondary particles composed by aggregation of the primary particles, wherein a 1-nm to 200-nm thick film containing W and Li is present on the surface of the primary particles, and a c-axis length in the LiNi composite oxide crystal ranges from 14.183 to 14.205 angstroms. General formula: LibNi1-x-yCoxMyO2??(1) (In the formula, M is at least one type of element selected from Mg, Al, Ca, Ti, V, Cr, Mn, Nb, Zr and Mo, and 0.95?b?1.03, 0<x?0.15, 0<y?0.07, and x+y?0.16 are satisfied.

Abstract: The present invention provides a positive electrode active material includes a first lithium transition metal oxide represented by formula Lia(NibCocMnd)1-eMeO2 or Lia(NibCocAld)1-eM?eO2, wherein 0.9<a<1.1, 0.6?b<0.9, 0.1?c<0.4, 0.05?d<0.4, 0?e?0.1, b+c+d=1, M is at least one of Al, Mg, Ti, Zr, M? is at least one of Mg, Ti, Zr, and a second lithium transition metal oxide represented by formula LixNiyCozM?sO2, wherein 0.9<x<1.1, 0.4?y<0.6, 0.2?z<0.5, 0.2?s<0.5, y+z+s=1, M? is at least one of Mn, Al, Mg, Ti, Zr, Fe, Cr, V, Ti, Cu, B, Ca, Zn, Nb, Mo, Sr, Sb, W, Bi. The positive electrode active material for a lithium ion battery of the present invention shows a high compacted density. The present invention also provides a lithium ion battery using the positive electrode active material of the present invention. The lithium ion battery has high gram capacity, high energy density, good storage performance, and good cycle stability.

Abstract: Provided herein are a battery cell of a battery pack to power electric vehicles. The battery cell can include a housing. The housing can define an inner region. An electrolyte can be disposed in the inner region defined by the housing. The battery cell can include a lid. A gasket can couple the lid with the first end of the housing to seal the battery cell. The gasket can include a first gasket surface and a second gasket surface. The first end of the housing can have a crimped edge disposed about the first gasket surface to couple the gasket with the first end of the housing and position the second gasket surface adjacent to the electrolyte. The crimped edge can have a first crimped surface having a predetermined pattern for wire bonding and a second crimped surface disposed adjacent to the first gasket surface.

Abstract: The present invention provides a nonaqueous electrolyte secondary battery insulating porous layer having an excellent withstand voltage property and an excellent leakage resistance characteristic. The nonaqueous electrolyte secondary battery insulating porous layer having a trabecular structure including voids, which trabecular structure has an anisotropy value of 1.30 to 2.10, the anisotropy value being calculated from a three-dimensional image showing a void part and a solid content part on respective two gradation levels, the three-dimensional image being prepared by analyzing images of cross sections obtained by making observation at intervals of 20 nm in a thickness direction from a surface of the nonaqueous electrolyte secondary battery insulating porous layer with use of a FIB-SEM having a magnification of 6500 times.

Abstract: There is provided a compound for use as material in cathode of a battery. The compound has i) at least sodium or ii) sodium and lithium as a first ingredient, copper as a second ingredient, at least a first transition metal in a third ingredient (M) selected from a group including manganese, nickel, iron, copper, zinc, chromium, vanadium, titanium, molybdenum and tungsten, niobium; and oxygen as a fourth ingredient; and wherein the compound has a chemical formula of NayCuxM1-xO2, or LiaNabCuxM1-xO2.

Abstract: Provided is a cobalt precursor for preparing a lithium cobalt oxide of a layered structure which is included in a positive electrode active material, wherein the cobalt precursor is cobalt oxyhydroxide (CoM?OOH) doped with, as dopants, magnesium (Mg) and M? different from the magnesium.

Abstract: A secondary battery includes a positive electrode current collector attached to an electrode group, a sealing body including a lid plate and a positive electrode terminal, and a current collecting lead interposed between the positive electrode current collector and the sealing body, and joined to the positive electrode current collector and the sealing body. The current collecting lead has a top wall located on a side of the sealing body, a bottom wall facing the top wall, and located on a side of the positive electrode current collector, and a pair of side walls and extending between a side edge of the top wall and a side edge of the bottom wall, and facing each other. The top wall includes faced parts and facing the bottom wall, and extension parts extending outward from the faced parts, and the extension parts are joined to the lid plate.

Abstract: A method of preparing a positive electrode active material precursor for a lithium secondary battery by using a batch-type reactor, which includes the steps of 1) forming positive electrode active material precursor particles while continuously adding a transition metal-containing solution including a transition metal cation, an aqueous alkaline solution, and an ammonium ion-containing solution to a batch-type reactor, 2) sedimenting the positive electrode active material precursor particles formed; 3) discharging a supernatant formed after the sedimentation of the positive electrode active material precursor particles to an outside; 4) adjusting a pH to 10 to 12 by adding the ammonium ion-containing solution; and 5) growing the positive electrode active material precursor particles while continuously again adding the transition metal-containing solution to the batch-type reactor, and a method of preparing a positive electrode active material using the same.

Abstract: A current collector for use in an electrochemical cell is provided. The current collector comprises: a reticulated core comprising a polymer and having continuous porosity; a first reticulated surface; a second reticulated surface opposite said first reticulated surface; and a thin metal film disposed on at least one of said first and second reticulated surfaces, wherein said current collector has continuous porosity. A high temperature resistant polymer is preferred for the reticulated core where the current collector may be exposed to high temperatures during production or use. The continuous porosity of the reticulated core 12 and the current collector allows for passage of electrolyte and ions, as necessary for operation of an electrochemical device that includes the current collector.

Abstract: The present invention provides an anode material of nano-silicon. The anode material has multilayer-graphene as a carrier and is coated with silicon suboxide and with an amorphous carbon layer. The anode material has multilayer-graphene to serve as a carrier, nano-silicon which is adsorbed on the multilayer-graphene and both the multilayer-graphene and the nano-silicon serve as a core, silicon suboxide and the amorphous carbon layer to cover the multilayer-graphene and the nano-silicon, and a plurality of buffering holes which are disposed on the anode material to provide buffering space. An anode material of high quality is realized by coating multilayer-graphene which serves as a carrier of nano-silicon with silicon suboxide and with the amorphous carbon layer.

Abstract: A method of preparing an electrochemical electrode which is partially or totally covered with a film that is obtained by spreading an aqueous solution comprising a water-soluble binder over the electrode and subsequently drying same. The production cost of the electrodes thus obtained is reduced and the surface porosity thereof is associated with desirable resistance values.

Abstract: The present invention provides a positive electrode active material for a secondary battery, the positive electrode active material being a secondary particle that includes a primary particle having a rectangular parallelepiped shape, the rectangular parallelepiped having at least one portion of vertices and edges formed in a round shape that is convex outward, wherein 1% to 40% of a total surface area of the secondary particle has open porosity, and the primary particle includes a lithium composite metal oxide of Formula 1 herein so that intercalation and deintercalation of lithium are facilitated, elution of an active material-constituting metal element is suppressed, and excellent structural stability is exhibited, thereby decreasing resistance and improving output and lifespan characteristics when applied to a battery, and a secondary battery comprising the same.

Abstract: A lithium ion secondary battery is disclosed that can inhibit generation of gas due to decomposition of a non-aqueous electrolyte solution. The lithium ion battery includes a cathode, a non-aqueous electrolyte solution and an anode, wherein the cathode includes a conductive material, a layered niobium-containing oxide that coats a surface of the conductive material, and a lithium-containing oxide active material having an upper-limit potential to a redox potential of metal lithium of no less than 4.5 V (vs. Li/Li+).

Abstract: A positive active material for a rechargeable lithium battery including a core including at least one selected from a nickel-based composite oxide represented by Chemical Formula 1 or a lithium manganese oxide represented by Chemical Formula 2; and a coating layer on a surface of the core and including a lithium metal oxide represented by Chemical Formula 3, the positive active material having a peak at a 2? value of about 19° to about 22° and another peak at a 2? value of about 40° to about 45° in an X-ray diffraction pattern using a CuK? ray, is disclosed. A method of preparing the same, and a rechargeable lithium battery including the same, are also disclosed. LiNixCoyMn1-x-yO2??Chemical Formula 1 LiaMnbOc??Chemical Formula 2 Li2MO3??Chemical Formula 3 In Chemical Formulae 1 to 3, x, y, a, b, c, and M are the same as in the detailed description.

Abstract: The present invention relates to a positive electrode active material for a secondary battery and a secondary battery including the same, wherein the positive electrode active material includes a core, a shell disposed to surround the core, and a buffer layer which is disposed between the core and the shell and includes pores and a three-dimensional network structure connecting the core and the shell, wherein the core, the shell, and the three-dimensional network structure of the buffer layer each independently includes a polycrystalline lithium composite metal oxide of Formula 1 including a plurality of grains, and the grains have an average grain diameter of 50 nm to 150 nm.

Abstract: Provided is a cathode active material for a non-aqueous electrolyte secondary battery that improves the cycling characteristic and high-temperature storability without impairing the charge/discharge capacity and the output characteristics. A nickel cobalt containing composite hydroxide is obtained by using a batch type crystallization method in which a raw material aqueous solution that includes Ni, Co and Mg is supplied in an inert atmosphere to a reaction aqueous solution that is controlled so that the temperature is within the range 45° C. to 55° C., the pH value is within the range 10.8 to 11.8 at a reference liquid temperature of 25° C., and the ammonium-ion concentration is within the range 8 g/L to 12 g/L. An Al-coated composite hydroxide that is expressed by the general formula: Ni1-x-y-zCoxAlyMgz(OH)2 (where, 0.05?x?0.20, 0.01?y?0.06, and 0.01?z?0.

Abstract: This invention discloses a lithium metal oxide powder for a cathode material in a rechargeable battery, consisting of a core and a surface layer, the core having a layered crystal structure comprising the elements Li, M and oxygen, wherein M has the formula M=(Niz(Ni1/2Mn1/2)yCox)1-kAk, with 0.15?x?0.30, 0.20?z?0.55, x+y+z=1 and 0?k?0.1, wherein A is a dopant, wherein the Li content is stoichiometrically controlled with a molar ratio 0.95?Li:M?1.10; and wherein the surface layer comprises the elements Li, M? and oxygen, wherein M? has the formula M?=(Niz?(Ni1/2Mn1/2)y?Cox?)1-k?Ak?, with x?+y?+z?=1 and 0?k??0.1, and wherein y?/(y?+2z?)?1.1*[y/(y+2z)]. The surface layer may also comprise at least 3 mol % Al, the Al content in the surface layer 10 being determined by XPS.

Abstract: Provided are a lithium nickel metal complex oxide powder having low alkalinity and excellent cycle characteristics, a lithium ion battery positive electrode active material containing the same, a lithium ion battery positive electrode using the active material, and a lithium ion battery having the positive electrode. A lithium nickel metal complex oxide exhibiting excellent cycle characteristics and low alkalinity is successfully produced by controlling the crystal grain size and composition ratio in a lithium nickel metal complex oxide powder.

Abstract: Provided is a positive electrode active material that is capable of improving output characteristics when used as positive electrode material for a non-aqueous electrolyte secondary battery. A lithium mixture that is obtained by adding and mixing a lithium compound to a transition metal composite hydroxide that was obtained from a crystallization reaction undergoes calcination in an atmosphere having an oxygen concentration of 4% by volume or greater. In this calcination process, carbon dioxide gas concentration in the atmosphere while the temperature is maintained at a calcination temperature is kept at 10% by volume or less, and preferably kept at 0.01% by volume to 10% by volume. As a result, positive electrode active material is obtained that includes a lithium transition metal composite oxide that is composed of secondary particles that are formed from aggregates of plural primary particles, and that has a carbon content of 0.010% by mass to 0.100% by mass.

Abstract: A method for lithiation of an electrode includes providing a roll including an electrode to be lithiated, providing a piece of lithium metal with predetermined weight attached to a conductive material, attaching the conductive material to a current collector of the electrode to be lithiated or to a metal tab connected to or from the electrode to be lithiated, placing the roll, the piece of lithium, and the conductive material in a container, and filling the container with an electrolyte containing a lithium salt.

Abstract: Provided are a positive electrode active material for nonagueous secondary batteries, the material having a narrow particle-size distribution and a monodisperse property and being capable of increasing a battery capacity; an industrial production method thereof; and a nonaqueous secondary battery using the positive electrode active material and having excellent electrical characteristics. The positive electrode active material is represented by a general formula: Li1+uNixCoyMnzMtO2+? (wherein, 0.05?u?0.95, x+y+z+t=1, 0?x?0.5, 0?y?0.5, 0.5?z<0.8, 0?t?0.1, and M is an additive element and at least one element selected from Mg, Ca, Al, Ti, V, Cr, Zr, Nb, Mo, and W), has an average particle diameter of 3 to 12 um, and has [(d90?d10)/average particle diameter], an index indicating a scale of particle-size distribution, of 0.60 or less.

Abstract: A powderous positive electrode material for a lithium secondary battery, the material having the general formula Li1+x[Ni1?a?b?cMaM?bM?c]1?xO2?z; M being either one or more elements of the group Mn, Zr and Ti, M? being either one or more elements of the group Al, B and Co, M? being a dopant different from M and M?, x, a, b and c being expressed in mol with ?0.02?x?0.02, 0?c?0.05, 0.10?(a+b)?0.65 and 0?z?0.05; and wherein the powderous material is characterized by having a BET value ?0.37 m2/g, a Dmax<50 ?m, and a hardness strength index ??(P) of no more than 100%+(1?2a?b)×160% for P=200 MPa, wherein (Formula I) (I) with D 10p=0 being the D10 value of the unconstrained powder (P=0 M Pa), r°(D 10p=0) being the cumulative volume particle size distribution of the unconstrained powder at D 10p=0, and ?p(D 10p=0) being the cumulative volume particle size distribution at D10p=0 of the pressed samples with P being expressed in M Pa.

Abstract: The embodiment relates to the field of electrolyte selection in lithium ion cells which may employ Li4Ti5O12 compounds as negative electrode material and LiPF6 as the ionic salt component in the cell electrolyte solution. The embodiment further relates to improvements in lithium ion cell performance as a result of selection of specific formulation of electrolyte for lithium ion cells.

Abstract: Provided are a nickel-based active material for a lithium secondary battery, a method of preparing the nickel-based active material, and a lithium secondary battery including a positive electrode including the nickel-based active material. The nickel-based active material includes at least one secondary particle that includes at least two primary particle structures, the primary particle structures each including a porous inner portion and an outer portion having a radially arranged structure, and the secondary particle including at least two radial centers.

Abstract: The present disclosure provides a lithium-ion battery, which comprises: a positive electrode plate containing a positive electrode active material, a negative electrode plate containing a negative electrode active material and an electrolyte. The positive electrode active material comprises: a core and a coating layer coating a surface of the core and comprising boron. The electrolyte comprises a lithium salt, a non-aqueous organic solvent and an electrolyte additive, the electrolyte additive comprises an organic titanium compound. The coating layer of the positive electrode active material of the lithium-ion battery according to the present disclosure contains boron, and the electrolyte of the lithium-ion battery contains the organic titanium compound, under the combined effect of the coating layer containing boron and the electrolyte containing the organic titanium compound, the lithium-ion battery has excellent high temperature cycle performance and excellent high temperature storage performance.

Abstract: A battery includes a positive electrode including a positive electrode active material, a negative electrode, and an electrolytic solution including a lithium hexafluorophosphate and an additive. The positive electrode active material includes a compound having a crystal structure belonging to a space group FM3-M and represented by Compositional Formula (1): LixMeyO?F?. The additive is at least one selected from the group consisting of difluorophosphates, tetrafluoroborates, bis(oxalate)borate salts, bis(trifluoromethanesulfonyl)imide salts, and bis(fluorosulfonyl)imide salts.