Abstract: A battery system includes: a secondary battery; a memory portion that stores information which includes a measurement frequency, a measurement temperature, and an initial limiting capacitance of one secondary battery; a temperature measuring section; a power supply section which applies an AC signal of 0.5 mHz to 10 mHz, to the secondary battery at 40° C. to 70° C.; a measuring portion which measures an impedance of the secondary battery by the AC signal; and a calculating portion that calculates the degree of degradation of the secondary battery.

Abstract: A feed-through has a base body, for example in the form of a disk-shaped metal part. The base body includes at least one opening through which at least one conductor, for example an essentially pin-shaped conductor, embedded in a glass or glass ceramic material, is guided. The base body includes a material having a low melting point, such as a light metal, and the glass or glass ceramic material is selected in such a manner that the melting temperature thereof is lower than the melting temperature of the material of the base body.

Abstract: A flexible paper based battery system with a first a least partially electrically conductive nanomaterial infused paper sheet combined with a first lithium metal oxide electrode sheet disposed in an interference fit between the first infused paper sheet and a dielectric sheet, and a second at least partially electrically conductive nanomaterial infused paper sheet combined with a second lithium metal oxide electrode sheet disposed in an interference fit between the second infused paper sheet and the dielectric sheet. Where the first lithium metal oxide electrode sheet and the second lithium metal oxide sheet are different compositions.

Abstract: Dry process based energy storage device structures and methods for using a dry adhesive therein are disclosed.

Abstract: A non-aqueous secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution includes a non-aqueous solvent, an electrolyte salt, and one or both of a disulfonyl compound represented by a following Formula (1) and a disulfinyl compound represented by a following Formula (2), where R1 is one of a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a halogenated oxygen-containing hydrocarbon group, and a group obtained by bonding two or more thereof to one another; and X1 is a halogen group, where R2 is one of a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a halogenated oxygen-containing hydrocarbon group, and a group obtained by bonding two or more thereof to one another; and X2 is a halogen group.

Abstract: Various embodiments are directed to flexible battery structures comprising a flexible hinge region. For example, a flexible battery structure may comprise a plurality of battery layers. A first portion of the layers may be continuous across the hinge region and one or more cell regions. A second portion of the layers may be discontinuous at the hinge region.

Abstract: Provided are an electrolyte for a sodium secondary battery, and a sodium secondary battery employing the same, and more particularly, a sodium secondary battery including an anode containing sodium, a cathode containing a transition metal, and a sodium ion conductive solid electrolyte provided between the anode and the cathode. The cathode is impregnated with a mixed salt electrolyte containing a molten sodium salt and an electrolyte additive, and the electrolyte additive contains a non-halogen sodium salt and a metal halide compound simultaneously.

Abstract: There is provided an electrolyte solution including a solvent formed from a sulfone, and a magnesium salt dissolved in the solvent.

Abstract: A metal/air battery in one embodiment includes a negative electrode, a positive electrode, and a separator positioned between the negative electrode and the positive electrode, wherein the pressure within the positive electrode is maintained at or above 10 bar with compression energy provided by electrons driving electrochemical reaction in the battery during charging of the metal/air battery.

Abstract: A method for fabricating a paper lithium ion cell including depositing a first lithium-metal oxide composition onto a first electrically conducting microfiber paper substrate to define a cathode, depositing a second, different lithium-metal oxide composition onto a second electrically conducting coated microfiber paper substrate to define an anode, separating the cathode and the anode with a barrier material, infusing the cathode and the anode with electrolytes, and encapsulating the anode, the cathode, and the barrier material in a housing.

Abstract: In a method for manufacturing a functional layer for a lithium cell, e.g., a protective layer for a lithium metal anode, the functional layer being lithium-ion conductive and including particles of at least one ceramic material, the particles of the at least one ceramic material being applied to a carrier by deposition.

Abstract: An example method of controlling a fuel cell power plant based on provided power includes selectively varying an electrical resistance of the variable resistive device responsive to at least one of a power provided by the fuel cell power plant, a current provided by the fuel cell power plant, or a voltage decay rate.

Abstract: An additive for a sodium ion secondary battery of the present invention includes a compound of at least one of a saturated cyclic carbonate having a fluoro group and a chain carbonate having a fluoro group. A sodium ion secondary battery (1) of the present invention includes: a non-aqueous electrolytic solution including the additive for a sodium ion secondary battery and a non-aqueous solvent containing a saturated cyclic carbonate or a non-aqueous solvent containing a saturated cyclic carbonate and a chain carbonate; a positive electrode (11); and a negative electrode (12) that includes a coating formed in a surface of the negative electrode, the coating containing a composite material having carbon, oxygen, fluorine and sodium in the surface and includes a negative-electrode active material containing a hard carbon.

Abstract: A hydrogen supply apparatus of fuel cell stack is provided. In particular, a plurality of unit cells includes a membrane electrode assembly, a separating plate disposed on two sides of the membrane electrode assembly, a coolant path, an air path, a fuel path, and an air inlet manifold communicated with the air path. An end plate is disposed on each end of the plurality of unit cells and forms an air inlet manifold in a location corresponding to the air inlet manifold of the separating plate. Additionally, a hydrogen supply apparatus is provided in the air inlet manifold of the separating plate and the air inlet manifold of the end plate that selectively supplies additional hydrogen to the cathode through the air path when needed.

Abstract: The present invention provides one with a battery having an iron anode, e.g., a Ni—Fe battery, having improved performance characteristics. The battery uses a particular electrolyte and/or battery separator. The resulting characteristics of efficiency, charge retention and cycle life are much improved over such batteries in the prior art.

Abstract: A power source for a solid state device includes: a first frame having a first contact portion, a first bonding portion and a first extension portion between the first contact portion and the first bonding portion; a second frame having a second contact portion, a second bonding portion and a second extension portion between the second contact portion and the second bonding portion; and a first pole layer, an electrolyte layer and a second pole layer positioned between the first and second contact portions, wherein a first portion of the electrolyte layer is positioned between the first extension and the first pole and a second portion of the electrolyte layer is positioned between the first extension and the second pole.

Abstract: A battery pack assembly has a plurality of interconnected battery cells and is suitable for use in an electric vehicle or a hybrid electric vehicle. The assembly includes a first battery cell having a first terminal and a second battery cell having a second terminal electrically interconnected by a bus bar formed of a conductive material and attached to the first terminal and the second terminal. A bus bar retainer formed of a dielectric material is configured to contain the bus bar within the bus bar retainer. The bus bar has a greater freedom of movement within the bus bar retainer along a first, e.g. vertical, axis than along a second, e.g. longitudinal, axis and a third, e.g. lateral axis, wherein both the second and third axes are substantially perpendicular to the first axis and to each other. The assembly may also include individually removable temperature sensing devices.

Abstract: A battery capable of improving load characteristics, low-temperature characteristics and high-temperature cycle characteristics is provided. A cathode (13) includes a lithium cobalt complex oxide represented by LiaCoxMIyMIIzO2 (MI includes at least one kind selected from the group consisting of Al, Cr, V, Mn and Fe, MII includes at least one kind selected from the group consisting of Mg and Ca, 0.9?a?1.1, 0.9?x<1, 0.001?y?0.05, 0.001?z?0.05, x+y+z=1), and further includes Zr as a sub-component element. The content of Zr is within a range from 0.01 mol % to 10 mol % both inclusive as a ratio (Zr/Co) of Zr to Co in the lithium cobalt complex oxide.

Abstract: An electrochemical cell system is configured to utilize an oxidant reduction electrode module containing an oxidant reduction electrode mounted to a housing to form a gaseous oxidant space therein that is immersed into the ionically conductive medium. A fuel electrode is spaced from the oxidant reduction electrode, such that the ionically conductive medium may conduct ions between the fuel and oxidant reduction electrodes to support electrochemical reactions at the fuel and oxidant reduction electrodes. A gaseous oxidant channel extending through the gaseous oxidant space provides a supply of oxidant to the oxidant reduction electrode, such that the fuel electrode and the oxidant reduction electrode are configured to, during discharge, oxidize the metal fuel at the fuel electrode and reduce the oxidant at the oxidant reduction electrode, to generate a discharge potential difference therebetween for application to a load.

Abstract: An electrode layer is provided by forming first and second sublayers containing input passages and exhaust passages, respectively. Electrode material is positioned around a first portion of first and second pluralities of spaced-apart removable physical structures to at least partially surround the structures thereby forming an active cell portion in each sublayer. Ceramic material is positioned around second portions to form a passive support structure in each sublayer. Another passive support structure is formed opposite the first, with the active cell portion therebetween. The sublayers are laminated, the physical structures are pulled out, and the laminated sublayers are sintered to reveal spaced-apart input passages from one end of the layer through the active cell portion, and spaced-apart exhaust passages from the active cell portion to a side of the layer adjacent the other end, the input and exhaust passages embedded in and supported by the sintered electrode and ceramic materials.