Abstract: A cathode material has one of olivine and NASICON structures and includes micrometer-sized secondary particles having a particle size ranging from 1 to 50 ?m. Each of the micrometer-sized secondary particles is composed of crystalline nanometer-sized primary particles of a metal compound having a particle size ranging from 10 to 500 nm.

Abstract: The positive active material according to one embodiment of the present invention includes a composite metal oxide of the following Formula 1, and a compound being capable of intercalating and deintercalating lithium having the composite metal oxide coated on the surface thereof. M1-xAlO2 ??[Chemical Formula 1] Wherein, in the above Formula 1, M is selected from the group consisting of an alkali metal, an alkaline-earth metal, and combinations thereof, and 0.03?x?0.95. The composite metal oxide increases impregnation of an electrolyte, improves lithium mobility, and decreases internal resistance of a rechargeable lithium battery, and thereby improves discharge capacity and cycle-life characteristics.

Abstract: A negative electrode 1 for nonaqueous secondary batteries characterized by having an active material layer 5 and a metallic lithium layer 3 both between a pair of current collecting surface layers 4. The negative electrode 1 has two negative electrode precursors 2 each composed of the current collecting surface layer 4 and the active material layer 5 on one side of the surface layer 4. The two negative electrode precursors 2 are united with their active material layers 5 facing each other and with the metallic lithium layer 3 sandwiched therebetween. A metallic material having low capability of forming a lithium compound penetrates through the whole thickness of the active material layer 5.

Abstract: The invention provides a cathode for an electrochemical cell comprising: a first particulate material having particles comprising a mixture of at least one alkali metal halide and at least one metal; and a second particulate material comprising at least one alkali metal halide, wherein the second particulate material has a particle size smaller than that of the first particulate material.

Abstract: A galvanic cell is disclosed. Generally, the cell includes an alkali metal anode, which electrochemcially oxidizes to release alkali metal ions, and a cathode, which is configured to be exposed to an electrolyte solution. A water-impermeable, alkali-ion-conductive ceramic membrane separates the anode from the cathode. Moreover, an alkali-ion-permeable anode current collector is placed in electrical communication with the anode. In some cases, to keep the anode in contact with the current collector as the cell functions and as the anode is depleted, the cell includes a biasing member that urges the anode against the current collector. To produce electricity, the galvanic cell is exposed to an aqueous electrolyte solution, such as seawater, brine, saltwater, etc.

Abstract: The present invention includes compositions, surface and bulk modifications, and methods of making of (1?x)Li[Li1/3Mn2/3]O2.xLi[Mn0.5-yNi0.5-yCo2y]O2 cathode materials having an O3 crystal structure with a x value between 0 and 1 and y value between 0 and 0.5, reducing the irreversible capacity loss in the first cycle by surface modification with oxides and bulk modification with cationic and anionic substitutions, and increasing the reversible capacity to close to the theoretical value of insertion/extraction of one lithium per transition metal ion (250-300 mAh/g).

Abstract: A non-aqueous electrolyte secondary battery including a positive electrode capable of reversibly absorbing and desorbing lithium, a negative electrode including an alloy material as an active material, and a non-aqueous electrolyte, wherein the alloy material includes a phase (phase A) containing at least Si and a phase (phase B) containing an intermetallic compound composed of Si and at least one selected from the group consisting of Ti, Zr, Ni and Cu, and the alloy material contains 0.0006 to 1.0 wt % of Fe in a metallic state.

Abstract: In a non-aqueous electrolyte secondary battery, in order to adjust a cathode active material in which guest cation such as Na and Li is included, alkaline metal fluoride which is expressed by a general formula AF and transition metal fluoride which is expressed by a formula M? F2 are subjected to a mechanical milling process to produce metal fluoride compound AM? F3. The mechanical milling process desirably uses a planetary ball mill.

Abstract: Charge-discharge cycle performance is improved in a lithium secondary battery including a negative electrode containing a negative electrode active material having silicon as its main component, provided on a surface of a current collector, a positive electrode containing a positive electrode active material, and a non-aqueous electrolyte. The positive electrode active material is a lithium transition metal oxide containing Li and Co and having a layered structure, and further containing a group IVA element of the periodic table, such as Zr, Ti, or Tf, and a group IIA element of the periodic table, such as Mg.

Abstract: A non-aqueous electrolyte secondary battery includes: a liquid electrolyte including a non-aqueous solvent and an alkali metal salt dissolved in the non-aqueous solvent; a positive electrode active material including a redox material that is dissolved or dispersed in the liquid electrolyte; a positive electrode current collector that provides a place where an oxidation-reduction reaction involving the positive electrode active material occurs; and a negative electrode capable of charging and discharging in which an alkali metal ion participates.

Abstract: An article of electrochemical energy conversion is provided that includes a separator. The separator has a first surface that defines at least a portion of a first chamber, and a second surface that defines a second chamber, and the first chamber is in ionic communication with the second chamber through the separator. The energy storage device further includes a plurality of cathodic materials. The plurality includes at least a first cathodic material and a second cathodic material. Both of the cathodic materials are in electrical communication with the separator and both are capable of forming a metal halide. A proviso is that if either of the first cathodic material or the second cathodic material is a transition metal, then the other cathodic material is not iron, arsenic, or tin.

Abstract: A lithium storage cell comprises at least a first electrode comprising an active material wherein Li+ cations can be inserted, a second electrode and an electrolyte. The active material of the first electrode comprises a linear condensed compound comprising at least two tetrahedra, respectively of AO4 and A?O4 type, bonded by a common oxygen atom. A transition metal ion M2+ with a degree of oxidation of +2 selected from the group consisting of Ni2+, Co2+, Mn2+, Fe2+ and Ti2+ is inserted in the linear condensed compound, and the ratio between the number of Li+ cations able to be inserted in the active material and the number of transition metal ions M2+ is strictly greater than 1. A and A? are selected from the group consisting of P5+, Si4+, Al3+, S6+, Ge4+, B3+.

Abstract: A method for preparing a multilayer material based on active lithium, by depositing a film of active lithium on a protective layer at a sufficient speed so that substantially no oxidation of the lithium occurs, and/or during a sufficient time for the adhesion of the lithium to develop after contact with the protective layer. The multilayer material, when incorporated in an electrochemical battery as an anode, has excellent impedance stability and no formation of dendrites during the cycling. Batteries where the anode is the multilayer material are particularly efficient in terms of their coulomb efficiency.

Abstract: Disclosed is a secondary battery comprising a lithium transition metal oxide as a cathode active material, wherein an organic ammonium compound is added to a cathode and/or is coated on a separator. Therefore, the secondary battery according to the present invention can achieve improvements in residual capacity and recovery capacity even after high-temperature storage of the battery, simultaneously with improved power retention of the battery at low and high temperatures.

Abstract: An article of electrochemical energy conversion is provided that includes a separator. The separator has a first surface that defines at least a portion of a first chamber, and a second surface that defines a second chamber, and the first chamber is in ionic communication with the second chamber through the separator. The energy storage device further includes a plurality of cathodic materials. The plurality includes at least a first cathodic material and a second cathodic material. Both of the cathodic materials are in electrical communication with the separator and both are capable of forming a metal halide. A proviso is that if either of the first cathodic material or the second cathodic material is a transition metal, then the other cathodic material is not iron, arsenic, or antimony.

Abstract: The electrolyte includes one or more polysiloxanes, one or more alkali metal salts, and one or more silanes. At least one polysiloxane includes side chains having poly(alkylene oxide) moieties. At east one silane includes at least one moiety selected from a first group consisting of an alkyl group, a halogenated alkyl group, an aryl group, a halogenated aryl group, an alkoxy group and an oxyalkylene group and at least one moiety selected from a second group consisting of an alkoxy group, an oxyalkylene group and a carbonate group. In one example, the electrochemical device is a secondary battery.

Abstract: There is provided a battery device having a high operating voltage and a low capacity degradation rate. The battery device comprising: a positive electrode having at least a positive electrode active material layer and a positive electrode collector; a negative electrode; a separator; and an organic electrolytic solution, wherein the positive electrode active material layer contains non-porous carbon having a specific surface area of 500 m2/g or less as a main component, and a material forming the negative electrode is different from a positive electrode active material, and contains a material capable of storing and releasing an alkali metal ion or an alkaline earth metal ion as a main component.

Abstract: The invention provides a novel polyanion-based electrode active material for use in a secondary or rechargeable electrochemical cell having a first electrode, a second electrode and an electrolyte.

Abstract: The invention is directed to a zinc powder or zinc alloy powder for alkaline batteries, which powder has a grain size distribution wherein 60 to 100 wt.-% of the particles, relative to the zinc powder or zinc alloy powder, have a diameter of from 40 to 140 ?m. The invention is also directed to an alkaline battery.

Abstract: A cathode material for use in a lithium secondary battery of excellent thermal stability contributing to the improvement of safety of the battery and having large discharging capacity, as well as a method of manufacturing the cathode material for use in the lithium secondary battery, based on the improved method for measuring the thermal stability of the cathode material, the cathode material comprising a compound represented by the chemical formula: LixNiyCozMmO2 in which the material is powdery and the BET specific surface area is 0.8 m2/g or less, M in the chemical formula represents one or more of element selected from Ba, Sr and B, and x, y, z and m are, respectively, 0.9?x?1.1, 0.5?y?0.95, 0.05?z?0.5 and 0.0005?m?0.02.

Abstract: A composition for use in an electrochemical redox reaction is described. The composition may comprise a material represented by a general formula MyXO4 or AxMyXO4, where each of A (where present), M, and X independently represents at least one element, O represents oxygen, and each of x (where present) and y represent a number, and an oxide of at least one of various elements, wherein the material and the oxide are cocrystailine, and/or wherein a volume of a crystalline structural unit of the composition may be different than a volume of a crystalline structural unit of the material alone. An electrode comprising such a composition is also described, as is an electrochemical cell comprising such an electrode. A process of preparing a composition for use in an electrochemical redox reaction is also described.

Abstract: A non-aqueous electrolyte secondary battery has a negative electrode, a non-aqueous electrolyte, and a positive electrode containing a positive electrode active material composed of an olivine lithium-containing metal phosphate represented by the general formula LixMPO4, where M is at least one element selected from the group consisting of Co, Ni, Mn, and Fe, and 0<x<1.3. The positive electrode active material contains a LixMPO4 aggregate formed by granulating a LixMPO4 having an average particle size of 1 ?m or less in a volumetric particle size distribution by coating the LixMPO4 with a binding agent composed of a carbonaceous substance. The LixMPO4 aggregate has an average particle size of 3 ?m or less in the volumetric particle size distribution and a 90th percentile particle size (D90) of 7 ?m or greater, as measured at the 90th percentile point of the volumetric particle size distribution.

Abstract: This invention relates to electrode active materials, electrodes, and batteries. In particular, this invention relates to active materials comprising lithium or other alkali metals, transition metals, +3 oxidation state non-transition elements, and phosphates or similar moieties.

Abstract: A lithium ion battery is disclosed in which the negative electrode material comprises carbon nanostructures having no dimension greater than 2 ?m. The battery has a high reversible capacity of the order of 400 mAh/g to 500 mAh/g which can be maintained over a long cycle-life (at least 30 cycles). The carbon nanostructures may be mixed with graphite to improve conductivity. The carbon nanostructues may be synthesized using an AFI template material followed by calcination.

Abstract: A positive electrode active material for a lithium ion secondary battery is a lithium-containing composite oxide represented by the chemical formula: Lia(Co1-x-yMgxAly)bMzOc, where M is at least one element selected from the group consisting of Na and K, and the values a, b, c, x, y and z respectively satisfy 0?a?1.05, 0.005?x?0.15, 0.0001?y?0.01, 0.0002?z?0.008, 0.85?b?1.1 and 1.8?c?2.1. This makes it possible to improve a high temperature storage characteristics and safety of the lithium ion secondary battery.

Abstract: A metal-air battery is disclosed in one embodiment of the invention as including a cathode to reduce oxygen molecules and an alkali-metal-containing anode to oxidize the alkali metal (e.g., Li, Na, and K) contained therein to produce alkali-metal ions. An aqueous catholyte is placed in ionic communication with the cathode to store reaction products generated by reacting the alkali-metal ions with the oxygen containing anions. These reaction products are stored as solutes dissolved in the aqueous catholyte. An ion-selective membrane is interposed between the alkali-metal containing anode and the aqueous catholyte. The ion-selective membrane is designed to be conductive to the alkali-metal ions while being impermeable to the aqueous catholyte.

Abstract: Negative active materials for rechargeable lithium batteries are provided. One negative active material includes a metal matrix, and an intermetallic compound including a Si active metal and an additive metal dispersed in the metal matrix. The intermetallic compound does not react with the metal matrix.

Abstract: An electrode, for a rechargeable lithium battery, including a current collector; an active material layer disposed on the current collector; and a coating layer disposed on the active material layer. The coating layer includes a lithium ion conductive polymer and an inorganic material represented by Formula 1: MwHxPyOz, wherein M is an element selected from the group consisting of an alkali metal, an alkaline-earth metal, a Group 13 element, a Group 14 element, a transition element, a rare earth element, and a combination thereof; and 1?w?4, 0?x?4, 1?y?7, and 2?z?30.

Abstract: There is provided a simple and easy method of preparation of a positive electrode active material for a non-aqueous secondary battery which comprises a compound comprising lithium, nickel and manganese and having a layered structure. Said method comprises firing a mixture of (1) at least one member selected from the group consisting of dinickel trioxide and boron compounds and (2) one or more metal compounds comprising lithium, nickel and manganese as their metal elements.

Abstract: This invention relates to electrode active materials, electrodes, and batteries. In particular, this invention relates to active materials comprising lithium or other alkali metals, iron, cobalt, and other transition metals, and phosphates or similar moieties.

Abstract: A solid electrolyte of the present invention is represented by a general formula: LixMOyNz, where M is at least one element selected from the group consisting of Si, B, Ge, Al, C, Ga and S, and x, y and z respectively satisfy x=0.6 to 5.0, y=1.050 to 3.985, and z=0.01 to 0.50. The solid electrolyte hardly deteriorates in a wet atmosphere.

Abstract: The invention provides an electrochemical cell which includes a first electrode having a electrode active material, a second electrode which is a counter electrode to the first electrode, and an electrolyte. The positive electrode active material is represented by the general formula AaMbXc[O(3c+1)?d,Ne].

Abstract: Provided is a battery capable of improving charge-discharge cycle characteristics. The battery comprises a spirally wound electrode body in which a cathode and an anode are spirally wound with a separator in between. The capacity of the anode includes a capacity component by insertion and extraction of Li and a capacity component by precipitation and dissolution of Li metal, and is represented by the sum of them. Moreover, the anode includes a carbon material capable of obtaining a first peak within a range from 1580 cm?1 to 1620 cm?1 and a second peak within a range of 1350 cm?1 to 1370 cm?1 in a Raman spectrum analysis using argon laser light with a wavelength of 5145 nm, and having an intensity ratio IB/IA between the first peak and the second peak of 0.25 to 0.6, where the intensity of the first peak is IA and the intensity of the second peak is IB. Thereby, precipitation-dissolution efficiency of lithium metal and charge-discharge cycle characteristics can be improved.

Abstract: A lithium ion battery including a cathode provided with a cathode active material on a cathode current collector, an anode and an electrolyte solution, wherein the cathode active material layer contains nano-particles of ceramic is provided. The lithium ion battery suppresses the growth of a cathode film on the cathode, improves energy density and has excellent cycle characteristics.

Abstract: The positive active material according to one embodiment of the present invention includes a composite metal oxide of the following Formula 1, and a compound being capable of intercalating and deintercalating lithium having the composite metal oxide coated on the surface thereof. M1-xAlO2 [Chemical Formula 1] Wherein, in the above Formula 1, M is selected from the group consisting of an alkali metal, an alkaline-earth metal, and combinations thereof, and 0.03?x?0.95. The composite metal oxide increases impregnation of an electrolyte, improves lithium mobility, and decreases internal resistance of a rechargeable lithium battery, and thereby improves discharge capacity and cycle-life characteristics.

Abstract: A method and system for fabricating solid-state energy-storage devices including fabrication films for devices without an anneal step. A film of an energy-storage device is fabricated by depositing a first material layer to a location on a substrate. Energy is supplied directly to the material forming the film. The energy can be in the form of energized ions of a second material. Supplying energy directly to the material and/or the film being deposited assists in controlling the growth and stoichiometry of the film. The method allows for the fabrication of ultrathin films such as electrolyte films and dielectric films.

Abstract: Primary and secondary Li-ion and lithium-metal based electrochemical cell system. The suppression of gas generation is achieved through the addition of an additive or additives to the electrolyte system of respective cell, or to the cell itself whether it be a liquid, a solid- or plastized polymer electrolyte system. The gas suppression additives are primarily based on unsaturated hydrocarbons.

Abstract: An article of electrochemical energy conversion is provided that includes a separator. The separator has a first surface that defines at least a portion of a first chamber, and a second surface that defines a second chamber, and the first chamber is in ionic communication with the second chamber through the separator. The energy storage device further includes a plurality of cathodic materials. The plurality includes at least a first cathodic material and a second cathodic material. Both of the cathodic materials are in electrical communication with the separator and both are capable of forming a metal halide. A proviso is that if either of the first cathodic material or the second cathodic material is a transition metal, then the other cathodic material is not iron, arsenic, or tin.

Abstract: To present a nonaqueous electrolyte secondary battery using iron compound which is inexpensive and abundant in resource, as the active material for the positive electrode. An iron compound with particle size of 1 to 300 nm or less, being composed of substantially spherical primary particles of pore-free matter, is used as the active material for a positive electrode, which is used together with a negative electrode and a nonaqueous electrolyte for composing the battery. By forming the primary particles for composing particles of the iron compound as a pore-free matter, being controlled in a range of 1 to 300 nm, nano effects are brought about, and it is also effective to suppress excessive increase of surface area which may lead to promotion of decomposition of electrolyte, and an excellent discharge capacity is realized stably for a long period.

Abstract: Safe and economical electrochemically active nanocomposites based on metal fluoride compounds useful in rechargeable battery cell electrodes. When incorporated as the active electrode material in lithium battery cell systems, the nanocomposites enable high, stable specific capacities.

Abstract: A novel cathode composition for use in a metal/fluorinated carbon battery is produced by mixing fluorinated carbons made from anisotropic and isotropic carbon, where the anisotropic carbon is carbon fiber and the isotropic carbon is graphite. This cathode composition has higher specific capacity and higher discharge rate capability than commonly used industrial products made using fluorinated petroleum cokes or similar materials. In addition this composition undergoes much less swelling (increase in volume) during discharge when compared with the commonly used fluorinated carbon.

Abstract: A primary electrochemical cell having a capacity in excess of 0.5 AHr and a high energy density anode comprised of a metal selected from lithium, sodium, potassium, calcium and manganese and a cathode active material, wherein the discharge capacity of the anode is at least substantially equal to or in excess of the discharge capacity of the cathode active material, and wherein said cell further comprises a voltage monitor and cell circuit cut-off whereby when the voltage monitor senses a discharge voltage of about 1.6 or lower, said circuit cut-off are actuated to cut off the cell circuit to thereby prevent hazardous conditions of cell reversal or anode metal plating.

Abstract: A battery includes a cathode having an oxide containing one or more metals and pentavalent bismuth, an anode including lithium, a separator between the cathode and the anode, and an electrolyte. The metal(s) can be an alkali metal, an alkaline earth metal, a transition metal, and/or a main group metal.

Abstract: The invention provides a novel polyanion-based electrode active material for use in a secondary or rechargeable electrochemical cell having a first electrode, a second electrode and an electrolyte.

Abstract: An organic electrolytic solution containing an organic solvent and a compound that contains an anionic polymerization monomer with an added component capable of being chelated with a lithium metal cation. A lithium battery may utilize the organic electrolytic solution. The lithium battery may have improved stability to reductive decomposition, reduced first cycle irreversible capacity, and improved charging/discharging efficiency and lifespan. Moreover, reliability of the battery may be improved because the battery, after formation and standard charging at room temperature, may not swell beyond a predetermined thickness. Even when the lithium battery swells significantly at a high temperature, the capacity of the lithium battery may be high enough for practical applications due to its recovery capacity.

Abstract: The present invention relates to novel battery having a first electrode comprising an electrode active material represented by the general formula AaMb(XY4)2Zd, a second electrode which is a counter-electrode to the first electrode; and an electrolyte.

Abstract: An all-solid-state battery having a high output power and a long life, exhibiting high safety, and being produced at a low cost is provided. The all-solid-state battery has a cathode comprising a cathode material, an anode comprising an anode material, and a solid electrolyte layer comprising a solid electrolyte, wherein the cathode material, the anode material, and the solid electrolyte are a compound shown by the following formulas (1), (2), and (3), respectively: MaN1bX1c ??(1) MdN2eX2f ??(2) MgN3hX3i ??(3) wherein M represents H, Li, Na, Mg, Al, K, or Ca and X1, X2, and X3 are polyanions, each of N1 and N2 is at least one atom selected from the group consisting of transition metals, Al, and Cu, and N3 is at least one atom selected from the group consisting of Ti, Ge, Hf, Zr, Al, Cr, Ga, Fe, Sc, and In.

Abstract: A negative electrode for a non-aqueous electrolyte secondary battery includes a current collector, a first layer and a second layer. The first layer is provided on the current collector and includes at least any one of alkaline metals and alkaline earth metals. The second layer is provided on the first layer, and includes an active material capable of absorbing and desorbing lithium ions having a barrier function of blocking ingress of gas.

Abstract: A non-aqueous electrolyte rechargeable battery including: (a) a positive electrode capable of charging and discharging lithium; (b) a negative electrode capable of charging and discharging lithium; (c) a separator or a lithium ion conductive layer interposed between the positive electrode and the negative electrode; and (d) a lithium ion conductive non-aqueous electrolyte, wherein the positive electrode contains a mixture of a first positive electrode active material and a second positive electrode active material, the first positive electrode active material includes lithium oxide containing manganese, the lithium oxide further contains aluminum and/or magnesium, and the second positive electrode active material includes LixCo1-y-zMgyAlzO2 where 1?x?1.03, 0.005?y?0.1 and 0.001?z<0.02.

Abstract: A lithium-sulfur battery having a positive electrode including a positive active material including an active sulfur, where the positive electrode comprises an electron-conductive path and an ion-conductive path, and includes active pores of the average size of up to 20 ?m having both electron-conductive and ion-conductive properties, and are filled with the active sulfur during an electrochemical reaction of the battery.