Abstract: The Coulombic efficiency of metal deposition/stripping can be improved while also preventing dendrite formation and growth by an improved electrolyte composition. The electrolyte composition also reduces the risk of flammability. The electrolyte composition includes a polymer and/or additives to form high quality SEI layers on the anode surface and to prevent further reactions between metal and electrolyte components. The electrolyte composition further includes additives to suppress dendrite growth during charge/discharge processes. The electrolyte composition can also be applied to lithium and other kinds of energy storage devices.

Abstract: An example of a flexible membrane includes a porous membrane and a solid electrolyte coating formed on at least a portion of a surface of the porous membrane, in pores of the porous membrane, or both on the surface and in the pores. The solid electrolyte coating includes i) a polymer chain or ii) an inorganic ionically conductive material. The polymer chain or the inorganic material includes a group to interact or react with a polysulfide through covalent bonding or supramolecular interaction.

Abstract: The invention relates to lithium 1-trifluoromethoxy-1,2,2,2-tetra-fluoroethanesulphonate, the use of lithium 1-trifluoromethoxy-1,2,2,2-tetra-fluoroethanesulphonate as electrolyte salt in lithium-based energy stores and also ionic liquids comprising 1-trifluoro-methoxy-1,2,2,2-tetrafluoro-ethanesulphonate as anion.

Abstract: An electrolyte membrane for use in a rechargeable battery includes a polymer layer and platelet particles, where the polymer layer is reinforced with a fiber mat, and the polymer layer retains an electrolyte. A rechargeable battery uses the membrane in a position between a positive electrode and negative electrode where the membrane serves as an ion conductor for the battery.

Abstract: A solid electrolyte includes a sulfide-based electrolyte and a coating film including a water-resistant, lithium conductive polymer on a surface of the sulfide-based electrolyte, a method of preparing the solid electrolyte, and a lithium battery including the solid electrolyte.

Abstract: An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same, the electrolyte including a lithium salt, a silylborate-based compound, an anhydride component, and a non-aqueous organic solvent.

Abstract: A solid state battery includes a flexible polymer sheet, and an array of solid state pillars supported by and extending through the sheet. Each of the pillars has an anode layer, a cathode layer adjacent, and an inorganic solid electrolyte (ISE) layer interposed between the anode and cathode layers. A flexible electrochemical membrane includes a flexible polymer sheet, and an array of inorganic solid electrolyte pillars supported by the polymer sheet with each of the pillars extending through a thickness of the sheet to form an ionically conductive pathway therethrough.

Abstract: A porous coordination polymer-ionic liquid composite according to the present invention includes an insulating structure composed of a porous coordination polymer, and an ionic liquid retained inside pores of the porous coordination polymer. The porous coordination polymer preferably has a main chain containing a typical metal element.

Abstract: A polymer electrolyte composition including a metal salt and at least one polymer comprising a poly(glycidyl ether), where the at least one polymer is amorphous at ambient temperature. The poly(glycidyl ether) polymer can be a blend of poly(glycidyl ether) polymers, can be a poly(glycidyl ether) polymer blended with a mechanically strong solid polymer, and can be a block of a block copolymer that also includes a polymer block forming a mechanically strong solid polymer.

Abstract: A solid-state battery cell includes an anode, a cathode, and a solid electrolyte matrix. At least the anode or the cathode may include an active electrode material having pores. Further, an inner surface of the pores may be coated with a first surface-ion diffusion enhancement coating. The solid electrolyte matrix may further include an electrically insulating matrix for a solid electrolyte. The electrically insulating matrix may have pores or passages and an inner surface of the pores or the passages may be coated with a second surface-ion diffusion enhancement coating.

Abstract: A rechargeable lithium cell comprising a cathode having a cathode active material, an anode having an anode active material, a porous separator electronically separating the anode and the cathode, a non-flammable quasi-solid electrolyte in contact with the cathode and the anode, wherein the electrolyte contains a lithium salt dissolved in a first organic liquid solvent with a concentration sufficiently high so that the electrolyte exhibits a vapor pressure less than 0.01 kPa when measured at 20° C., a flash point at least 20 degrees Celsius higher than the flash point of the first organic liquid solvent alone, a flash point higher than 150° C., or no flash point. This battery cell is non-flammable and safe, has a long cycle life, high capacity, and high energy density.

Abstract: A solid ionic electrolyte having an organic plastic crystal solvent (e.g. succinonitrile) doped with lithium bioxalato borate salt (LiBOB) may be used in an electrochemical device. Electrochemical devices are disclosed having a cathode, an anode, and a solid ionic electrolyte having a neutral organic plastic crystal solvent doped with LiBOB alone or in combination with another lithium salt. Such devices have a stable electrolyte interface over a broad potential window combined with high energy density delivery capacity and, in one example, the favorable properties of a neutral organic plastic crystal matrix such as succinonitrile.

Abstract: A polymer that provides for effective proton/cation transfer within, through, across the polymer. The polymer may be used in an electrochemical sensor and may include a redox active species and a facilitator of proton transfer that may provide for the “shuttling”/transfer of a proton through the polymer. As such, the polymer may provide for protons to be transferred through the polymer from or to a conducting substrate. The polymer may also provide for separation of components, fluids, materials in an electrochemical system while still allowing for a transfer, shuttling of protons or cations between the components, fluids or material. The proton, cation transfer polymer may be used in a battery, an electrochemical sensor or a fuel cell.

Abstract: A sulfur-based cathode for use in an electrochemical cell is disclosed. The sulfur is sequestered to the cathode to enhance cycle lifetime for the cathode and the cell. An exemplary sulfur-based cathode is coupled with a solid polymer electrolyte instead of a conventional liquid electrolyte. The dry, solid polymer electrolyte further acts as a diffusion barrier for the sulfur. Together with a sequestering matrix in the cathode, the solid polymer electrolyte prevents sulfur capacity fade that occurs in conventional liquid electrolyte based sulfur systems. The sequestering polymer in the cathode further binds the sulfur-containing active particles, preventing sulfur agglomerates from forming, while still allowing lithium ions to be transported between the anode and cathode.

Abstract: There are provided an electrolyte-positive electrode structure which comprises a thin solid electrolyte and can develop excellent capacity and output, and a lithium ion secondary battery comprising the same. An electrolyte-positive electrode structure 7 comprises: a positive electrode 4 comprising a positive electrode active material layer 3 formed on a current collector 2; and a solid electrolyte 6 containing inorganic particles having lithium ion conductivity, an organic polymer, and a polymer gel, in which the organic polymer binds the inorganic particles and can be impregnated with the polymer gel, and the polymer gel holds an electrolyte solution and is impregnated into the organic polymer, wherein the positive electrode active material layer 3 is integrated with the solid electrolyte 6 using the organic polymer as a medium.

Abstract: A secondary battery includes: an electric cell layer including a stack structure sequentially including: a positive electrode layer, a separator layer, and a negative electrode layer having an electrolyte higher in conductivity than an electrolyte of at least one of the separator layer and the positive electrode layer.

Abstract: A solid electrolyte for an electrochemical device includes a composite of a plastic crystal matrix electrolyte doped with an ionic salt and a crosslinked polymer structure having a linear polymer as a side chain chemically bonded thereto. The linear polymer has a weight average molecular weight of 100 to 5,000 and one functional group. The electrolyte has high ionic conductivity comparable to that of a liquid electrolyte due to the use of the plastic crystal, and high mechanical strength comparable to that of a solid electrolyte due to the introduction of the crosslinked polymer structure. A method for preparing the solid electrolyte does not essentially require the use of a solvent, eliminating the need for drying. The electrolyte is suitable for use in a cable-type battery whose shape is easy to change due to its high ionic conductivity and high mechanical strength comparable to that of a solid electrolyte.

Abstract: The present invention relates to freestanding carbon nanotube paper comprising purified carbon nanotubes, where the purified carbon nanotubes form the freestanding carbon nanotube paper and carbon microparticles embedded in and/or present on a surface of the carbon nanotube paper. The invention also relates to a lithium ion battery, capacitor, supercapacitor, battery/capacitor, and fuel cell containing the freestanding carbon nanotube paper as an electrode. Also disclosed is a method of making a freestanding carbon nanotube paper. This method involves providing purified carbon nanotubes, contacting the purified carbon nanotubes with an organic solvent under conditions effective to form a dispersion comprising the purified carbon nanotubes. The dispersion is formed into a carbon nanotube paper and carbon microparticles are incorporated with the purified carbon nanotubes.

Abstract: An electrolyte for a non-aqueous electrolyte battery according to the present invention contains a non-aqueous organic solvent; a solute; and both of difluorobis(oxalato)phosphate and tetrafluoro(oxalate)phosphate as additives. A non-aqueous electrolyte battery according to the present invention uses the above electrolyte. By the composite effect of the difluorobis(oxalato)phosphate and tetrafluoro(oxalate)phosphate in the non-aqueous electrolyte and the non-aqueous electrolyte battery, it is possible to improve not only the cycle characteristics and high-temperature storage stability of the battery but also the low-temperature characteristics of the battery at temperatures of 0° C. or lower.

Abstract: A lithium-ion battery having an anode including an array of nanowires electrochemically coated with a polymer electrolyte, and surrounded by a cathode matrix, forming thereby interpenetrating electrodes, wherein the diffusion length of the Li+ ions is significantly decreased, leading to faster charging/discharging, greater reversibility, and longer battery lifetime, is described. The battery design is applicable to a variety of battery materials. Methods for directly electrodepositing Cu2Sb from aqueous solutions at room temperature using citric acid as a complexing agent to form an array of nanowires for the anode, are also described. Conformal coating of poly-[Zn(4-vinyl-4?methyl-2,2?-bipyridine)3](PF6)2 by electroreductive polymerization onto films and high-aspect ratio nanowire arrays for a solid-state electrolyte is also described, as is reductive electropolymerization of a variety of vinyl monomers, such as those containing the acrylate functional group.

Abstract: Provided is an anode for use in electrochemical cells, wherein the anode active layer has a first layer comprising lithium metal and a multi-layer structure comprising single ion conducting layers and polymer layers in contact with the first layer comprising lithium metal or in contact with an intermediate protective layer, such as a temporary protective metal layer, on the surface of the lithium-containing first layer. Another aspect of the invention provides an anode active layer formed by the in-situ deposition of lithium vapor and a reactive gas. The anodes of the current invention are particularly useful in electrochemical cells comprising sulfur-containing cathode active materials, such as elemental sulfur.

Abstract: A method is provided for forming a sodium-containing particle electrolyte structure. The method provides sodium-containing particles (e.g., NASICON), dispersed in a liquid phase polymer, to form a polymer film with sodium-containing particles distributed in the polymer film. The liquid phase polymer is a result of dissolving the polymer in a solvent or melting the polymer in an extrusion process. In one aspect, the method forms a plurality of polymer film layers, where each polymer film layer includes sodium-containing particles. For example, the plurality of polymer film layers may form a stack having a top layer and a bottom layer, where with percentage of sodium-containing particles in the polymer film layers increasing from the bottom layer to the top layer. In another aspect, the sodium-containing particles are coated with a dopant. A sodium-containing particle electrolyte structure and a battery made using the sodium-containing particle electrolyte structure are also presented.

Abstract: A metal or metal-ion battery composition is provided that comprises anode and cathode electrodes along with an electrolyte ionically coupling the anode and the cathode. At least one of the electrodes includes active material particles provided to store and release ions during battery operation. Each of the active material particles includes internal pores configured to accommodate volume changes in the active material during the storing and releasing of the ions. The electrolyte comprises a solid electrolyte ionically interconnecting the active material particles.

Abstract: A flexible solid electrolyte includes a first inorganic protective layer, an inorganic-organic composite electrolyte layer including an inorganic component and an organic component, and a second inorganic protective layer, where the inorganic-organic composite electrolyte layer is disposed between the first inorganic protective layer and the second inorganic protective layer, and the inorganic component and the organic component collectively form a continuous ion conducting path.

Abstract: An all-solid battery including a positive electrode including a binder, a negative electrode including a binder, and an electrolyte layer disposed between the positive electrode and the negative electrode and including a solid electrolyte, wherein at least one binder of the positive electrode and the negative electrode is cross-linked by a cross-linking agent.

Abstract: Methods are described for forming insulating hybrid organic-inorganic solid electrolytes on conducting electrodes that are active materials in Li-ion batteries by electrochemical deposition, and for forming second conducting electrodes on the solid electrolytes using aqueous slurries, whereby Li-ion battery cells having solid electrolytes are generated. X-ray photoelectron spectroscopy is utilized for determining that the solid electrolytes are defect and pinhole free.

Abstract: A polarizable ion-conducting material. The material contains mobile ions and a matrix formed of a polymer having ionic groups of a charge opposite to that of the mobile ions, wherein the material has a polarization of at least 0.2 mC/g, a capacitance of at least 0.1 mF/g, and a polarization retention time of at least 5 seconds. Also disclosed is a device containing such a polarizable ion-conducting material.

Abstract: A class of polymeric phosphorous esters can be used as binders for battery cathodes. Metal salts can be added to the polymers to provide ionic conductivity. The polymeric phosphorous esters can be formulated with other polymers either as mixtures or as copolymers to provide additional desirable properties. Examples of such properties include even higher ionic conductivity and improved mechanical properties. Furthermore, cathodes that include the polymeric phosphorous esters can be assembled with a polymeric electrolyte separator and an anode to form a complete battery.

Abstract: An electrochemical cell including at least one nitrogen-containing compound is disclosed. The at least one nitrogen-containing compound may form part of or be included in: an anode structure, a cathode structure, an electrolyte and/or a separator of the electrochemical cell. Also disclosed is a battery including the electrochemical cell.

Abstract: A method for producing a sulfide solid electrolyte material includes a step of adding an ether compound to a coarse-grained material of a sulfide solid electrolyte material and microparticulating the coarse-grained material by a pulverization treatment.

Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode contains active material particles and a coating material. The active material particles are represented by any one of the following formulae (1) to (3): LixM1yO2??(1) LizM22wO4??(2) LisM3tPO4??(3) and have an average particle diameter of 0.1 to 10 ?m. The coating material comprises at least particles having an average particle diameter of 60 nm or less or layers having an average thickness of 60 nm or less. The particles or the layers contain at least one element selected from the group consisting of Mg, Ti, Zr, Ba, B and C.

Abstract: Various embodiments of solid-state conductors containing solid polymer electrolytes, electronic devices incorporating the solid-sate conductors, and associated methods of manufacturing are described herein. In one embodiment, a solid-state conductor includes poly(ethylene oxide) having molecules with a molecular weight of about 200 to about 8×106 gram/mol, and a soy protein product mixed with the poly oxide), the soy protein product containing glycinin and ?-conglycinin and having a fine-stranded network structure. Individual molecules of the poly(ethylene oxide) are entangled in the fine-stranded network structure of die soy protein product, and the poly(ethylene oxide) is at least 50% amorphous.

Abstract: An all-solid state secondary cell which has a positive electrode active material layer, negative electrode active material layer, and solid electrolyte layer, wherein at least one of said positive electrode active material layer, said negative electrode active material layer, and said solid electrolyte layer includes an inorganic solid electrolyte and a binder comprised of an average particle size 30 to 300 nm particulate-shaped polymer and said particulate-shaped polymer is present in said positive electrode active material layer, said negative electrode active material layer, and said solid electrolyte layer in a state holding the particulate state, is provided.

Abstract: A main object of the present invention is to provide a solid electrolyte layer having flexibility, in which ion conductivity is inhibited from decreasing. The present invention attains the above-mentioned object by providing a solid electrolyte layer including a sulfide solid electrolyte material not having cross-linking sulfur substantially and a branched polymer for binding the above-mentioned sulfide solid electrolyte material.

Abstract: The present invention is related to formation and processing of antiperovskite material. In various embodiments, a thin film of aluminum doped antiperovskite is deposited on a substrate, which can be an electrolyte material of a lithium-based electrochemical storage device.

Abstract: Disclosed is an integrated electrode assembly having a structure in which a cathode, an anode, and a separation layer disposed between the cathode and the anode are integrated with one another, wherein the separation layer has a multilayer structure including at least one two-phase electrolyte including a liquid phase component and a polymer matrix and at least one three-phase electrolyte including a liquid phase component, a solid component, and a polymer matrix, wherein the polymer matrices of the separation layer are coupled to the cathode or the anode and the liquid phase components of the separation layer are partially introduced into an electrode in a process of manufacturing the electrode assembly.

Abstract: The invention provides a method of producing a solid sulfide electrolyte material, with this method including a microparticulation step in which a sulfide glass containing Li, S, and P is mixed with an adhesive polymer and the sulfide glass is ground.

Abstract: An ion-conducting composite electrolyte is provided comprising path-engineered ion-conducting ceramic electrolyte particles and a solid polymeric matrix. The path-engineered particles are characterized by an anisotropic crystalline structure and the ionic conductivity of the crystalline structure in a preferred conductivity direction H associated with one of the crystal planes of the path-engineered particle is larger than the ionic conductivity of the crystalline structure in a reduced conductivity direction L associated with another of the crystal planes of the path-engineered particle. The path-engineered particles are sized and positioned in the polymeric matrix such that a majority of the path-engineered particles breach both of the opposite major faces of the matrix body and are oriented in the polymeric matrix such that the preferred conductivity direction H is more closely aligned with a minimum path length spanning a thickness of the matrix body than is the reduced conductivity direction L.

Abstract: A composite solid electrolyte includes a monolithic solid electrolyte base component that is a continuous matrix of an inorganic active metal ion conductor and a filler component used to eliminate through porosity in the solid electrolyte. In this way a solid electrolyte produced by any process that yields residual through porosity can be modified by the incorporation of a filler to form a substantially impervious composite solid electrolyte and eliminate through porosity in the base component. Methods of making the composites are also disclosed. The composites are generally useful in electrochemical cell structures such as battery cells and in particular protected active metal anodes, particularly lithium anodes, that are protected with a protective membrane architecture incorporating the composite solid electrolyte.

Abstract: Various embodiments of the invention disclose that the uptake of LiOiPr in Mg2(dobdc) (dobdc4?=1,4-dioxido-2,5-benzenedicarboxylate) followed by soaking in a typical electrolyte solution leads to a new solid lithium electrolyte Mg2(dobdc).0.35LiOiPr.0.25LiBF4.EC.DEC. Two-point ac impedance data show a pressed pellet of this material to have a conductivity of 3.1×10?4 S/cm at 300 K. In addition, the results from variable-temperature measurements reveal an activation energy of approximately 0.15 eV, while single-particle data suggest that intraparticle transport dominates conduction.

Abstract: Provided is an anode for use in electrochemical cells, wherein the anode active layer has a first layer comprising lithium metal and a multi-layer structure comprising single ion conducting layers and polymer layers in contact with the first layer comprising lithium metal or in contact with an intermediate protective layer, such as a temporary protective metal layer, on the surface of the lithium-containing first layer. Another aspect of the invention provides an anode active layer formed by the in-situ deposition of lithium vapor and a reactive gas. The anodes of the current invention are particularly useful in electrochemical cells comprising sulfur-containing cathode active materials, such as elemental sulfur.

Abstract: An electrolyte electrochemical device includes an anodic material and an electrolyte, the electrolyte including an organosilicon solvent, a salt, and a hybrid additiving having a first and a second compound, the hybrid additive configured to form a solid electrolyte interphase film on the anodic material upon application of a potential to the electrochemical device.

Abstract: The present invention relates to a highly advanced lithium-polymer battery and to a method for manufacturing same, and more particularly, to a highly advanced lithium-polymer battery including silicon nanoparticles substituted with polymers and self-assembling block copolymers. According to the present invention, the lithium-polymer battery is a highly advanced lithium-polymer secondary battery consisting of: an anode including anode active particles, wherein polymers are formed on the surface of the anode; a cathode; and a polymer electrolyte including block copolymers. According to the present invention, a high-capacity lithium-polymer battery, which is stable during charging/discharging cycles, can be provided.

Abstract: A non-aqueous electrolyte and a lithium secondary battery using the same are provided, which satisfy both flame retardancy and charge-discharge cycle characteristics, and attain a longer lifetime of the battery. A mixture of a chain carbonate, vinylene carbonate, a fluorinated cyclic carbonate and a phosphate ester is used as the non-aqueous electrolyte. It is desirable that the phosphate ester includes trimethyl phosphate and a fluorinated phosphate ester. Further, it is desirable that ethylene carbonate is further contained.

Abstract: A composite solid electrolyte includes a monolithic solid electrolyte base component that is a continuous matrix of an inorganic active metal ion conductor and a filler component used to eliminate through porosity in the solid electrolyte. In this way a solid electrolyte produced by any process that yields residual through porosity can be modified by the incorporation of a filler to form a substantially impervious composite solid electrolyte and eliminate through porosity in the base component. Methods of making the composites are also disclosed. The composites are generally useful in electrochemical cell structures such as battery cells and in particular protected active metal anodes, particularly lithium anodes, that are protected with a protective membrane architecture incorporating the composite solid electrolyte.

Abstract: In various embodiments an improved binder composition, electrolyte composition and a separator film composition using discrete carbon nanotubes, their methods of production and utility for energy storage and collection devices, like batteries, capacitors and photovoltaics, is described. The binder, electrolyte, or separator composition can further comprise polymers. The discrete carbon nanotubes further comprise at least a portion of the tubes being open ended and/or functionalized. The utility of the binder, electrolyte or separator film composition includes improved capacity, power or durability in energy storage and collection devices. The utility of the electrolyte and or separator film compositions includes improved ion transport in energy storage and collection devices.

Abstract: Provided are a solid polymeric electrolyte and a lithium battery with the same. The electrolyte paste may be formed by controlling composition ratio, dispersion, and thickness of the electrolyte paste to have physical properties suitable for the printing process. The use of the printing process enables to simplify a process of fabricating the lithium battery. In addition, the lithium battery provided with the solid polymeric electrolyte can exhibit improved performance (for example, in electrode-electrolyte interface stability and an internal short property), regardless of the shape of the solid polymeric electrolyte. For example, the lithium battery may exhibit improvement in interface stability between the electrode and the electrolyte and be configured to suppress an internal short therein.

Abstract: The invention relates to a method for producing perfluoroalkanesulfonic acid esters and for further transforming the same into the salts thereof. The invention also relates to the use of the produced compounds in electrolytes, batteries, capacitors, supercapacitors, and galvanic cells.

Abstract: A magnesium-ion cell comprising (a) a cathode comprising a carbon or graphitic material as a cathode active material having a surface area to capture and store magnesium thereon, wherein the cathode forms a meso-porous structure having a pore size from 2 nm to 50 nm and a specific surface area greater than 50 m2/g; (b) an anode comprising an anode current collector alone or a combination of an anode current collector and an anode active material; (c) a porous separator disposed between the anode and the cathode; (d) electrolyte in ionic contact with the anode and the cathode; and (e) a magnesium ion source disposed in the anode to obtain an open circuit voltage (OCV) from 0.5 volts to 3.5 volts when the cell is made.

Abstract: A solid electrolyte for an electrochemical device includes a composite of a plastic crystal matrix electrolyte doped with an ionic salt and a crosslinked polymer structure having a linear polymer as a side chain chemically bonded thereto. The linear polymer has a weight average molecular weight of 100 to 5,000 and one functional group. The electrolyte has high ionic conductivity comparable to that of a liquid electrolyte due to the use of the plastic crystal, and high mechanical strength comparable to that of a solid electrolyte due to the introduction of the crosslinked polymer structure. A method for preparing the solid electrolyte does not essentially require the use of a solvent, eliminating the need for drying. The electrolyte is suitable for use in a cable-type battery whose shape is easy to change due to its high ionic conductivity and high mechanical strength comparable to that of a solid electrolyte.