Abstract: A method of executing charge and discharge cycles with a battery cell where the discharge level is as low as zero detectable volts without substantial damage to the cell.

Abstract: The present disclosure relates to a lithium secondary battery assembled without an anode active material. Since the lithium secondary battery of the present disclosure does not contain an anode active material such as a lithium metal during the assembling process, the manufacturing process is simple and easy, and it is possible to improve processability and manufacturing costs. In addition, it has an irreversible compensating additive, thereby exhibiting excellent battery life.

Abstract: In one aspect, non-invasive methods are described in which combinations of certain battery parameter values are used to identify whether metal plating (e.g., lithium plating) has occurred during charging of a battery. In response to the detection of metal plating and/or conditions associated with metal plating, one or more characteristics of a charge process may be adjusted or adapted to maintain battery parameter values within a specified range. In some cases, after detection of metal plating, a battery charge process may be adjusted or adapted to remove metal plating from a battery's anode by a discharge pulse.

Abstract: A battery can include a separator, a first current collector, a protective layer, and a first electrode. The first current collector and the protective layer can be disposed on one side of the separator. The first electrode can be disposed on an opposite side of the separator as the first current collector and the protective layer. Subjecting the battery to an activation process can cause metal to be extracted from the first electrode and deposited between the first current collector and the protective layer. The metal can be deposited to at least form a second electrode between the first current collector and the protective layer.

Abstract: A production method of a negative electrode active material for non-aqueous electrolyte secondary batteries containing particles of lithium-containing silicon compound includes: preparing particles of silicon compound containing a silicon compound (SiOx: 0.5?x?1.6); obtaining particles of lithium-containing silicon compound by making the particle of silicon compound contact with a solution A that contains lithium and has an ether-based solvent as a solvent; and heating the particles of the lithium-containing silicon compound. A production method of a negative electrode active material for non-aqueous electrolyte secondary batteries is capable of increasing battery capacity of the negative electrode active material and capable of improving the first time efficiency and cycle characteristics.

Abstract: A battery comprises at least one battery cell on a support, the battery cell comprising (i) an electrolyte between a plurality of electrodes, and (ii) a top surface. A protective casing having a barrier layer contacts the top surface of the battery cell, the barrier layer comprising (i) an oxygen permeability or nitrogen permeability that is less than 80 cm3*mm/(m2*day), (ii) a carbon dioxide permeability that is less than 1 cm3*mm/(m2*day), and (iii) a water permeability that is less than 4 g*mm/(m2*day). A conformal coating covers the barrier layer, the conformal coating having a viscosity that is less than about 100,000 Pa-s at about 150° C. A cap is adhered to the conformal coating.

Abstract: Solid-state lithium ion electrolytes of lithium metal sulfide based composites are provided which contain an anionic framework capable of conducting lithium ions. An activation energy of the lithium metal sulfide composites is from 0.2 to 0.45 eV and conductivities are from 10?4 to 3.0 mS/cm at 300K. Composites of specific formulae are provided and methods to alter the composite materials with inclusion of aliovalent ions shown. Lithium batteries containing the composite lithium ion electrolytes are also provided. Electrodes containing the lithium metal sulfide based composites and batteries with such electrodes are also provided.

Abstract: A battery pack for a vehicle is presented. The battery pack comprises a plurality of bricks, each brick of the plurality of bricks comprising a phase change material block, a side of the phase change material block defining a plurality of channels, and a plurality of battery cells, each battery cell being disposed at least in part in the phase change material block; and at least one connector for electrically connecting a first one of the plurality of bricks to a second one of the plurality of bricks, the at least one connector being disposed at least partially in one of the plurality of channels.

Abstract: A positive electrode plate includes a positive electrode composite material layer. The positive electrode composite material layer contains at least a positive electrode active material and a flame retardant. The flame retardant contains phosphorus (P) or sulfur (S). The flame retardant has a thermal decomposition temperature not lower than 80° C. and not higher than 210° C. A value calculated by dividing a porosity (%) of the positive electrode composite material layer by an amount (mass %) of P and S contained in the positive electrode composite material layer is not smaller than 5 and not greater than 5000.

Abstract: A solid state electrochemical battery and a method of creation thereof are provided. There is a first conductive electrode on top of a substrate. There is a first polar conductor layer on top of the conductive electrode layer. A first solid electrolyte layer is on top of the first polar conductor layer. There is a second polar conductor layer on top of the first solid electrolyte layer and a second conductive electrode layer on top of the second polar conductor layer. A third polar conductor layer is on top of the second conductive electrode layer and a second solid electrolyte layer is on top of the third polar conductor layer. There is a fourth polar conductor layer on top of the second solid electrolyte layer and a third conductive electrode layer on top of the fourth polar conductor layer.

Abstract: A method for assembling a lithium-ion reserve battery. The method including: charging an assembled lithium-ion reserve battery, the assembled lithium-ion battery including electrodes forming a battery cell, electrolyte and a membrane separating the battery cell and the electrolyte, the electrodes being charged into a charged state; disassembling the charged lithium-ion reserve battery; rinsing and drying at least the electrodes of the disassembled lithium-ion reserve battery; and reassembling the lithium-ion reserve battery with the rinsed and dried electrodes in the charged state and without the electrolyte; wherein the reassembling includes hermetically sealing a housing containing the battery cell. A method for activating such lithium-ion battery further includes, subsequent to the reassembly, introducing the electrolyte into the battery cell to activate the lithium-ion battery.

Abstract: Disclosed herein is a battery cell having an electrode assembly including one or more unit cells mounted in a variable cell case in a state in which the electrode assembly is impregnated with an electrolyte, wherein at least one of the unit cells includes a flexible electrode that can be bent or curved, an electrode current collector of the flexible electrode includes a first surface, to which an electrode active material is applied, and a second surface, to which no electrode active material is applied, the second surface being opposite to the first surface, and the second surface is provided with a mesh for improving flexibility of the electrode.

Abstract: The present specification relates to an anode, a lithium secondary battery including the same, a battery module including the lithium secondary battery, and a method for manufacturing an anode.

Abstract: A positive electrode material having a nominal stoichiometry Li1+y/2Co1?x?y?z?dSizFexMyM?d(PO4)1+y/2 where M is a trivalent cation selected from at least one of Cr, Ti, Al, Mn, Ni, V, Sc, La and/or Ga, M? is a divalent cation selected from at least one of Mn, Ni, Zn, Sr, Cu, Ca and/or Mg, y is within a range of 0<y?0.10 and x is within a range of 0?x?0.2. The use of double compositional modification to LiCoPO4 increases the discharge capacity from ˜100 mAh/g to about 130 mAh/g while retaining the discharge capacity retention of the singly Fe-substituted LiCoPO4. Additional compositional modification to include Si increases the cycle life and greatly improved the coulombic efficiency to between 97-100% at a C/3 cycle rate.

Abstract: A battery pack for a vehicle is presented. The battery pack comprises a plurality of bricks, each brick of the plurality of bricks comprising a phase change material block, a side of the phase change material block defining a plurality of channels, and a plurality of battery cells, each battery cell being disposed at least in part in the phase change material block; and at least one connector for electrically connecting a first one of the plurality of bricks to a second one of the plurality of bricks, the at least one connector being disposed at least partially in one of the plurality of channels.

Abstract: A secondary battery includes: a cathode; an anode; and an electrolytic solution including a cyano compound, the cyano compound including a compound represented by R1-O—C(?O)—O—R2 (R1, R2, or both include a cyano-group-containing group), a compound represented by R3-C(?O)—O—R4 (R4 includes the cyano-group-containing group), or both.

Abstract: Articles and methods for forming protected electrodes for use in electrochemical cells, including those for use in rechargeable lithium batteries, are provided. In some embodiments, the articles and methods involve an electrode that does not include an electroactive layer, but includes a current collector and a protective structure positioned directly adjacent the current collector, or separated from the current collector by one or more thin layers. Lithium ions may be transported across the protective structure to form an electroactive layer between the current collector and the protective structure. In some embodiments, an anisotropic force may be applied to the electrode to facilitate formation of the electroactive layer.

Abstract: The present disclosure provides a method or process, apparatus and/or composition for catalyzing the oxidation of water to generate hydrogen ions and oxygen. The catalyst includes lithium cobalt germinate.

Abstract: A cathode material with oxygen vacancy is provided. The cathode material includes a lithium metal phosphate compound having a general formula LiMPO4?z, wherein M represents at least one of a first-row transition metal, and 0.001?z?0.05.

Abstract: This invention provides lithium-based batteries that include one or more inorganic barrier layers disposed between the anode and the cathode. The inorganic barrier layer is a lithium-ion conductor and is non-permeable to lithium-containing compounds, such as lithium polysulfides or lithium dendrites. The inorganic barrier layer may be in direct contact with the anode or cathode, or electrically isolated from the anode and cathode. The principles disclosed herein solve the problem of maintaining electrical isolation of the anode and cathode, while providing efficient lithium-ion conduction without crossover of other lithium species that would otherwise limit the power performance of the battery.

Abstract: This invention provides lithium-based batteries that include one or more inorganic barrier layers disposed between the anode and the cathode. The inorganic barrier layer is a lithium-ion conductor and is non-permeable to lithium-containing compounds, such as lithium polysulfides or lithium dendrites. The inorganic barrier layer may be in direct contact with the anode or cathode, or electrically isolated from the anode and cathode. The principles disclosed herein solve the problem of maintaining electrical isolation of the anode and cathode, while providing efficient lithium-ion conduction without crossover of other lithium species that would otherwise limit the power performance of the battery.

Abstract: [Object] To provide a positive electrode for a nonaqueous electrolyte secondary battery with which characteristics of the nonaqueous electrolyte secondary battery, such as a charge/discharge efficiency, a capacity retention ratio, and a discharge capacity retention ratio are not easily degraded even in the case where the nonaqueous electrolyte secondary battery is continuously charged at a high temperature. [Solution] A positive electrode 12 of a nonaqueous electrolyte secondary battery 1 includes a positive electrode active material layer 12b. The positive electrode active material layer 12b contains a positive electrode active material and a compound represented by a general formula (1): MH2PO2 (1). In the general formula (1), M represents a monovalent cation.

Abstract: A lithium ion secondary battery including a compound containing at least one thiol group (—SH) in a molecule in a unit cell of the battery is provided. By including the compound containing thiol group (—SH) having good reactivity with copper or copper ions, the formation of dendrite through the reduction of copper ions present in the inner portion of the battery or produced during operating the battery at the surface of an anode may be prevented. The internal short between two electrodes due to the dendrite may be also prevented.

Abstract: A composite cathode active material, a cathode and a lithium battery including the composite cathode, and a method of preparing the composite cathode active material, the composite cathode active material including a compound with an olivine crystal structure; and an inorganic material, the inorganic material including a nitride or carbide of at least one element selected from the group of Group 2, Group 13, Group 14, and Group 15 of the periodic table of elements.

Abstract: A positive electrode material having a nominal stoichiometry Li1+y/2Co1?x?y?z?dSizFexMyM?d(PO4)1+y/2 where M is a trivalent cation selected from at least one of Cr, Ti, Al, Mn, Ni, V, Sc, La and/or Ga, M? is a divalent cation selected from at least one of Mn, Ni, Zn, Sr, Cu, Ca and/or Mg, y is within a range of 0<y?0.10 and x is within a range of 0?x?0.2. The use of double compositional modification to LiCoPO4 increases the discharge capacity from ˜100 mAh/g to about 130 mAh/g while retaining the discharge capacity retention of the singly Fe-substituted LiCoPO4. Additional compositional modification to include Si increases the cycle life and greatly improved the coulombic efficiency to between 97-100% at a C/3 cycle rate.

Abstract: A cobalt-containing phosphate material can comprise lithium (Li) (or, alternatively or additionally other alkali metal(s)), cobalt (Co), phosphate (PO4), and at least two additional metals other than Li and Co (e.g., as dopants and/or metal oxides), and can have a molar ratio of Co to a total amount of Co and the additional metals (e.g., as dopants and/or metal oxides) of at least 0.2, at least 0.3, at least 0.5, at least 0.7, or at least about 0.75. The cobalt-containing phosphate material can have a molar ratio of Co to a total amount of Co and the additional metals (e.g., as dopants and/or metal oxides) ranging from 0.2 to 0.98, from 0.3 to 0.98, from 0.3 to 0.94, from 0.5 to 0.98, from 0.5 to 0.94, or alternatively from 0.5 to 0.9, from 0.7 to 0.9, or from 0.75 to 0.85.

Abstract: A cathode active material comprising a composition represented by the following general formula (1): LiaM1xM2yM3zPmSinO4??(1) wherein M1 is at least one kind of element selected from the group of Mn, Fe, Co and Ni; M2 is any one kind of element selected from the group of Zr, Sn, Y and Al; M3 is at least one kind of element selected from the group of Zr, Sn, Y, Al, Ti, V and Nb and different from M2; “a” satisfies 0<a?1; “x” satisfies 0<x?2; “y” satisfies 0<y<1; “z” satisfies 0<z<1; “m” satisfies 0?m<1; and “n” satisfies 0<n?1.

Abstract: A lithium battery including: a positive electrode including an overlithiated lithium transition metal oxide having a layered structure; a negative electrode including a silicon-based negative active material; and an electrolyte between the positive electrode and the negative electrode, the electrolyte including an electrolytic solution including a fluorinated ether solvent in an amount of 3 vol % or more based on the total volume of the electrolytic solution.

Abstract: An inexpensive negative electrode material for a nonaqueous electrolyte secondary battery includes three types of powder materials: alloy material A; alloy material B; and a conductive material. Alloy material A includes a CoSn2 structure containing Co, Sn, and Fe and has an Sn content of at least 70.1 mass % and less than 82.0 mass %. Alloy material B includes Co3Sn2 and has a lower discharge capacity than alloy material A. The proportion RB of the mass of alloy material B based on the total mass of alloy material A and B is greater than 5.9% and less than 27.1%. The content of the conductive material is at least 7 mass % and at most 20 mass % based on the total mass of alloy material A and B, and the conductive material. The exotherm starting temperature for the negative electrode material is less than 375.4° C.

Abstract: Disclosed is a nonaqueous secondary battery (100) comprising a positive electrode (155) having a positive current collector (151) made of a metal, and a positive electrode active material (153) composed of a lithium-metal complex oxide. The surface of the positive electrode active material (153) is coated with a lithium salt (158) having an average thickness of 20-50 nm.

Abstract: The present invention relates to a process for the preparation of compounds of general formula (I) Lia-bMb1Fe1-cMc2Pd-eMe3Ox, wherein Fe has the oxidation state +2 and M1, M2, M3, a, b, c, d, e and x are: M1: Na, K, Rb and/or Cs, M2: Mn, Mg, Al, Ca, Ti, Co, Ni, Cr, V, M3: Si, S, F a: 0.8-1.9, b: 0-0.3, c: 0-0.9, d: 0.8-1.9, e: 0-0.5, x: 1.0-8, depending on the amount and oxidation state of Li, M1, M2, P, M3, wherein compounds of general formula (I) are neutrally charged, comprising the following steps (A) providing a mixture comprising at least one lithium-comprising compound, at least one iron-comprising compound, in which iron has the oxidation state 0, and at least one M1-comprising compound, if present, and/or at least one M2-comprising compound, if present, and/or least one M3-comprising compound, if present, and at least one compound comprising at least one phosphorous atom in oxidation state +5, and (B) heating the mixture obtained in step (A) at a temperature of 100 to 500° C.

Abstract: A crystalline nanowire and method of making a crystalline nanowire are disclosed. The method includes dissolving a first nitrate salt and a second nitrate salt in an acrylic acid aqueous solution. An initiator is added to the solution, which is then heated to form polyacrylatyes. The polyacrylates are dried and calcined. The nanowires show high reversible capacity, enhanced cycleability, and promising rate capability for a battery or capacitor.

Abstract: A current collector for a nonaqueous solvent secondary battery, which includes: a first metal layer; and a second metal layer stacked on a surface of the first metal layer, is composed so that a Young's modulus (E1), Vickers hardness (Hv1) and thickness (T1) of the first metal layer and a Young's modulus (E2), Vickers hardness (Hv2) and thickness (T2) of the second metal layer can satisfy the following Expression: (E1>E2 or Hv1>Hv2); and T1<T2.

Abstract: A negative electrode active material including mesoporous silica having mesopores filled with a metal and a lithium battery including the same.

Abstract: Electrochemical cells having molten electrodes having an alkali metal provide receipt and delivery of power by transporting atoms of the alkali metal between electrode environments of disparate chemical potentials through an electrochemical pathway comprising a salt of the alkali metal. The chemical potential of the alkali metal is decreased when combined with one or more non-alkali metals, thus producing a voltage between an electrode comprising the molten the alkali metal and the electrode comprising the combined alkali/non-alkali metals.

Abstract: To provide an active material from which a sufficient discharge capacity is obtained, an electrode containing the active material, a lithium secondary battery including the electrode, and a method for making an active material. A method for making an active material includes a temperature elevation step of heating a mixture containing a lithium source, a pentavalent vanadium source, a phosphoric acid source, water, and a reductant in a hermetically sealed container at a temperature elevation rate T1 from 25° C. to 110° C. and then at a temperature elevation rate T2 from 110° C. to a designated temperature of 200° C. or more, in which T1>T2; T1=0.5 to 10° C./min; and T2=0.1 to 2.2° C./min.

Abstract: In a manufacturing process of a positive electrode active material for a power storage device, which includes a lithium silicate compound represented by a general formula Li2MSiO4, heat treatment is performed at a high temperature on a mixture material, grinding treatment is performed, a carbon-based material is added, and then heat treatment is performed again. Therefore, the reactivity between the substances contained in the mixture material is enhanced, favorable crystallinity can be obtained, and further microparticulation of the grain size of crystal which is grown larger by the high temperature treatment and crystallinity recovery are achieved; and at the same time, carbon can be supported on the surfaces of particles of the crystallized mixture material. Accordingly, a positive electrode active material for a power storage device, in which electron conductivity is improved, can be manufactured.

Abstract: A positive electrode active material provided by the present invention is formed of a lithium-nickel-containing metal phosphate compound represented by a general formula: LiNi(1-x)MxPO4(1) (in Formula (1), M is one or more metal elements selected from divalent and trivalent metal elements, and x is a number satisfying the condition 0<x<0.5). At least part of a surface of the lithium-nickel-containing metal phosphate compound is covered with carbon, and the lithium-nickel-containing metal phosphate compound covered with carbon has an olivine-type crystal structure confirmed by structure analysis by X-ray diffraction.

Abstract: The present invention provides a molten sodium secondary cell. In some cases, the secondary cell includes a sodium metal negative electrode, a positive electrode compartment that includes a positive electrode disposed in a liquid positive electrode solution, and a sodium ion conductive electrolyte membrane that separates the negative electrode from the positive electrode solution. In such cases, the electrolyte membrane can comprise any suitable material, including, without limitation, a NaSICON membrane. Furthermore, in such cases, the liquid positive electrode solution can comprise any suitable positive electrode solution, including, but not limited to, an aqueous sodium hydroxide solution. Generally, when the cell functions, the sodium negative electrode is molten and in contact with the electrolyte membrane. Additionally, the cell is functional at an operating temperature between about 100° C. and about 170° C. Indeed, in some instances, the molten sodium secondary cell is functional between about 110° C.

Abstract: A cathode includes a lithium transition metal complex compound including lithium, one, or two or more transition metals, magnesium, and oxygen as constituent elements. In a standardized X-ray absorption spectrum of the lithium transition metal complex compound measured by an X-ray absorption spectroscopic method, a first absorption edge having absorption edge energy E1 in X-ray absorption intensity of about 0.5 exits in a range where X-ray energy is from about 1303 eV to about 1313 eV both inclusive, in a discharged state in which a discharge voltage is about 3.0 V, and a second absorption edge having absorption edge energy E2 in X-ray absorption intensity of about 0.5 exits, in a charged state in which a charge voltage V is from about 4.3 V to about 4.5 V both inclusive. The absorption edge energies E1 and E2 and the charge voltage V satisfy a relation of E2?E1?(V?4.25)×4.

Abstract: In a lithium ion secondary battery including a positive electrode, a separator, a negative electrode, and a package body, the negative electrode includes simple substance silicon as a negative electrode active material, and a negative electrode binder, and is doped with lithium, and the following formulas (1) and (2) are satisfied: 1.2?Ma/Mc?1.9??(1) 1.0<Ma/(Mc+MLi)<1.6??(2) wherein an amount of lithium inserted into the negative electrode until the negative electrode reaches a potential of 0.02 V with respect to metal lithium is Ma (a number of atoms), an amount of lithium released from the positive electrode until the positive electrode reaches a potential of 4.3 V with respect to metal lithium is Mc (a number of atoms), and an amount of lithium with which the negative electrode is doped is MLi (a number of atoms).

Abstract: A cell cathode compartment comprises a granule bed comprising metal granules, metal halide granules, and sodium halide granules, a separator adjacent to the granule bed, a liquid electrolyte dispersed in the granule bed, and a porous absorbent disposed in the granule bed, wherein a transverse cross-sectional distribution of the porous absorbent in the granule bed varies in a longitudinal direction from a first position to a second position. In another embodiment, a cell cathode compartment comprises a granule bed comprising metal granules, metal halide granules, and sodium halide granules, a separator adjacent to the granule bed, a liquid electrolyte dispersed in the granule bed, and a porous absorbent coating on a surface adjacent to the granule bed.

Abstract: A cell cathode compartment comprises a granule bed comprising metal granules, metal halide granules, and sodium halide granules, a separator adjacent to the granule bed, a liquid electrolyte dispersed in the granule bed, and a porous absorbent disposed in the granule bed, wherein a transverse cross-sectional distribution of the porous absorbent in the granule bed varies in a longitudinal direction from a first position to a second position. In another embodiment, a cell cathode compartment comprises a granule bed comprising metal granules, metal halide granules, and sodium halide granules, a separator adjacent to the granule bed, a liquid electrolyte dispersed in the granule bed, and a porous absorbent coating on a surface adjacent to the granule bed.

Abstract: An electrochemical storage device including a plurality of electrochemical cells connected electrically in series. Each cell includes an anode electrode, a cathode electrode and an aqueous electrolyte. The charge storage capacity of the anode electrode is less than the charge storage capacity of the cathode.

Abstract: A method for producing an alkali-metal-including active material by pre-doping an active material with an alkali metal ion includes: mixing the alkali metal, an organic solvent with which the alkali metal is solvated, and a ligand having an electrophilic substitution reactivity to produce an alkali metal complex; and contacting and reacting the alkali metal complex and the active material with each other to pre-dope the active material with the alkali metal ion.

Abstract: A metal foil electrode comprising i) a reinforcement layer formed from a porous substrate, and ii) first and second layers of metal foil formed comprising lithium and/or sodium, wherein the reinforcement layer is disposed between the first and second metal foil layers and bonded (preferably pressure bonded) together to form a composite structure having a thickness of 100 microns or less.

Abstract: Pillared particles of silicon or silicon-comprising material and a method of fabricating the same are disclosed. These particles may be used to create both a composite anode structure with a polymer binder, a conductive additive and a metal foil current collector, and an electrode structure. The structure of the particles overcomes the problems of charge/discharge capacity loss.

Abstract: The invention relates to electrodes that contain active materials of the formula: AaMb(SO4)cXx wherein A is a single or mixed alkali metal phase comprising one or more of sodium, potassium, lithium mixed with sodium, lithium mixed with potassium or lithium mixed with sodium and potassium; M is selected from one or more transition metals and/or non-transition metals and/or metalloids; X is a moiety comprising one or more atoms selected from halogen and OH; and further wherein 1<a<3; b is in the range: 0<b?2; c is in the range: 2?c?3 and x is in the range 0?x?1. Such electrodes are useful in, for example, sodium ion battery applications.

Abstract: A method for manufacturing an active material containing a triclinic LiVOPO4 crystal particle that has a spherical form and an average particle size of 20 to 200 nm. The method includes a step of manufacturing the crystal particle by hydrothermal synthesis.

Abstract: A battery electrode composition is provided comprising core-shell composites. Each of the composites may comprise a sulfur-based core and a multi-functional shell. The sulfur-based core is provided to electrochemically react with metal ions during battery operation to store the metal ions in the form of a corresponding metal-sulfide during discharging or charging of the battery and to release the metal ions from the corresponding metal-sulfide during charging or discharging of the battery. The multi-functional shell at least partially encases the sulfur-based core and is formed from a material that is (i) substantially permeable to the metal ions of the corresponding metal-sulfide and (ii) substantially impermeable to electrolyte solvent molecules and metal polysulfides.