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 stretchable battery comprising at least one electrochemical cell further comprising a first electrode having a first active material coupled with a first current collector, a second electrode having a second active material coupled with a second current collector, an electrolytic separator configured between the first and second electrodes, and at least one stretchable substrate coupled with the formation of at least one electrochemical cell, wherein the stretchable substrate encapsulates the formation and is capable of reversible stretching.

Abstract: A fuel cell includes: a membrane electrode assembly; and a separator disposed on one side of the membrane electrode assembly, wherein the separator includes flow path grooves through which reactant gas flows between the separator and the membrane electrode assembly, the flow path grooves include: wavy grooves wavily extending in a first direction and arranged in a second direction orthogonal to the first direction; and a linear groove linearly extending in the first direction, the wavy grooves include: a first wavy groove located closest to the linear groove among the wavy grooves; and a second wavy groove located opposite to the linear groove with respect to the first wavy groove, and amplitude of the first wavy groove is smaller than that of the second wavy groove.

Abstract: Improved anodes and cells are provided, which enable fast charging rates with enhanced safety due to much reduced probability of metallization of lithium on the anode, preventing dendrite growth and related risks of fire or explosion. Anodes and/or electrolytes have buffering zones for partly reducing and gradually introducing lithium ions into the anode for lithiation, to prevent lithium ion accumulation at the anode electrolyte interface and consequent metallization and dendrite growth. Various anode active materials and combinations, modifications through nanoparticles and a range of coatings which implement the improved anodes are provided.

Abstract: A battery cell tray includes a bottom plate, a top plate opposite the bottom plate, at least one partition plate between the bottom plate and the top plate, a pressing plate between the partition plate and the bottom plate, and a transmission device between the pressing plate and the bottom plate and on the bottom plate. The transmission device includes moving members, a spiral rod, and supporting arms. The moving members respectively have a first threaded hole and a second threaded hole. The spiral rod has a first screw thread and a second screw thread that are arranged in reverse rotation directions and respectively engaged with the first threaded hole and the second threaded hole. Two top ends of the supporting arms are pivoted to the pressing plate, and two bottom ends of the supporting arms are respectively pivoted to the moving members.

Abstract: Batteries having vents are disclosed. An example battery includes a housing, including: a first terminal and a second terminal. The first terminal includes a cover. The cover includes at least one line of weakness therein. The line of weakness is structured to form an opening when a threshold pressure is satisfied within the housing to enable gas to vent from the housing through the opening. A filter is positioned within the housing and adjacent the cover. The filter has an aperture structured to enable the gas to vent from the housing and to deter solid material housed within the housing from exiting the opening when the threshold pressure is satisfied.

Abstract: A current collector included in a fuel cell, the fuel cell including a membrane electrode assembly including a solid polymer electrolyte layer and a pair of electrode layers formed to sandwich the solid polymer electrolyte layer, the current collector stacked on each electrode layer, and a gas flow path for supply of a gas to each electrode layer, the current collector including a metal porous body which is stacked on the electrode layer, has a flowing gas supplied to the electrode layer, and is rendered conducting to the electrode layer, and the metal porous body including an electrically conductive layer containing electrically conductive particles fixed to a corrosion-resistant and water-repellent resin at least on a side of the electrode layer.

Abstract: An electrode material comprising a composite lithium metal oxide, which in an initial state has the formula: y[xLi2MO3.(1?x)LiM?O2].(1?y)Li1+dMn2?z?dM?zO4; wherein 0?x?1; 0.75?y<1; 0<z?2; 0?d?0.2; and z?d?2. M comprises one or more metal ions that together have an average oxidation state of +4; M? comprises one or more metal ions that together have an average oxidation state of +3; and M? comprises one or more metal ions that together with the Mn and any excess proportion of lithium, “d”, have a combined average oxidation state between +3.5 and +4. The Li1+dMn2?z?dM?zO4 component comprises a spinel structure, each of the Li2MO3 and the LiM?O2 components comprise layered structures, and at least one of M, M?, and M? comprises Co. Cells and batteries comprising the electrode material also are described.

Abstract: Provided is a lithium ion secondary battery with reduced battery resistance, this lithium ion secondary battery using a positive electrode active material with a high potential and a phosphate-based solid electrolyte. The lithium ion secondary battery disclosed herein includes a positive electrode, a negative electrode, and a nonaqueous electrolytic solution. The positive electrode has a positive electrode active material layer including a positive electrode active material having an operation upper limit potential of at least 4.6 V relative to metallic lithium and a phosphate-based solid electrolyte. The nonaqueous electrolytic solution includes a boric acid ester including a fluorine atom.

Abstract: Provided is a slurry composition for a secondary battery negative electrode that has excellent producibility and can suppress cell swelling and an increase in internal resistance in a secondary battery. The slurry composition for a secondary battery negative electrode contains a negative electrode active material, a particulate polymer, and water. The negative electrode active material includes a carbon-based negative electrode active material having a surface functional group content of at least 0.9% and not more than 1.5%, and a BET specific surface area of 2.5 m2/g or less. The particulate polymer has a surface acid content of at least 0.2 mmol/g and not more than 2.0 mmol/g.

Abstract: A fuel cell system includes a reformer and a plurality of fuel cells of solid oxide. The reformer reforms raw fuel to generate fuel gas. The plurality of fuel cells generates electric power by using the fuel gas and oxidant gas. The plurality of fuel cells is arranged in the up-down direction and the right-left direction. The reformer has a cell facing face that faces any of the plurality of fuel cells in the back-and-forth direction. This configuration improves temperature uniformity among the plurality of fuel cells, and as a result, suppresses or prevents a decrease in the power generation efficiency of the fuel cell system.

Abstract: A battery is provided that includes a plurality of electrically coupled battery modules. Each battery module includes a plurality of combined battery cells having positive and negative poles arranged at opposing end faces of the battery module. Each battery module also includes a busbars electrically connecting said positive poles and a busbar connecting said negative poles. The battery includes an electrical insulation and a heat conducting plate arranged at one end face of the battery modules for cooling and/or heating the battery cells thereof. The heat conducting plate is provided at an end face of the battery modules that includes poles of the battery cells. The electrical insulation, which is formed as a thermal contact element, is located between the busbars of the battery modules and the heat conducting plate. The positive and negative poles of the battery cells are located on opposing end faces of each battery module.

Abstract: The present invention provides an optimal non-aqueous electrolyte secondary battery having high durability against high rate charging and discharging and excellent safety. The non-aqueous electrolyte secondary battery 100 according to the present invention comprises a positive electrode 10, a negative electrode 20 and a separator 30 which is interposed between the positive electrode 10 and the negative electrode 20. The separator 30 has a two-layer structure which is composed of a porous polyethylene layer 34 mainly composed of polyethylene, and a porous polymer layer 32 mainly composed of a polymer having higher oxidation resistance than that of the polyethylene, and an inorganic filler layer 40 including an inorganic filler and a binder is formed on the surface of the polyethylene layer 34 on which the porous polymer layer 32 is not formed.

Abstract: A battery cell having a first housing element (4) which holds the electrochemical components of the battery cell (2) and has an opening (6), and a second housing element (5) which has a voltage tap (7) to be accessed from a first surface (8) of the second housing element (5), the second housing element (5) closes off the opening (6) so that a first part region (91) of a second surface (9) of the second housing element (5) is immediately adjacent the interior space (10) of the first housing element (4), and that a second part region (92) of the second surface (9) of the second housing element (5) protrudes beyond the first housing element (4), wherein the second housing element (5) comprises a sealing element (11) connected to the first surface (8) and/or to the second part region (92) of the second surface (9).

Abstract: A fuel cell system for generating electrical power and high level heat comprising at least one high temperature fuel cell stack having an anode side and a cathode side and adapted to generate electrical power, and a gas oxidizer/high level heat recovery assembly comprising an oxidizer adapted to oxidize one or more of exhaust output from the at least one high temperature fuel cell stack and a gas derived from the exhaust, and to generate high level heat, and a high level heat recovery system adapted to recover the high level heat generated in the oxidizer.

Abstract: The present application relates to a secondary battery, including a naked battery core and a secondary battery head cover assembly. The secondary battery head cover assembly includes a head cover and an insulation structure. The insulation structure includes a top connection sheet and two naked battery core insulation sheets, and the two naked battery core insulation sheets are connected to two long sides of the top connection sheet, respectively. The top connection sheet is located below the head cover. The naked battery core is located below the top connection sheet. The head cover is provided with an explosion-proof valve, the top connection sheet is provided with an explosion-proof valve air hole, and the explosion-proof valve air hole is provided correspondingly below the explosion-proof valve.

Abstract: Provided are a method of manufacturing a cathode active material including a first step of preparing a metal glycolate solution, a second step of mixing lithium-containing transition metal oxide particles and the metal glycolate solution and stirring in a paste state, a third step of drying the paste-state mixture, and a fourth step of performing a heat treatment on the dried mixture, a cathode active material including a metal oxide layer which is manufactured by the above method, and a secondary battery composed of a cathode including the cathode active material.

Abstract: A device includes a container having a top plate containing an array of oxygen limiting pinholes and a chamber to hold a chemical hydride fuel, a fuel cell membrane electrode assembly supported within the container between the top plate and the chamber positioned to receive oxygen from the pinholes and hydrogen from the chamber, and a valve assembly positioned to regulate additional flow of oxygen to the fuel cell proton exchange membrane electrode assembly responsive to hydrogen pressure in the chamber.

Abstract: An electric power storage device includes a case body with an opening, the opening formed at an upper portion of the case body; an electrode body housed in the case body; a tab portion; and a current collecting terminal. The tab portion protrudes from part of the electrode body toward the opening of the case body. The tab portion has a side surface not facing the electrode body. The current collecting terminal is welded to the side surface of the tab portion.

Abstract: A positive-electrode material for a lithium ion secondary battery contains a lithium complex compound that is represented by the formula: Li1+aNibMncCodTieMfO2+?, and has an atomic ratio Ti3+/Ti4+ between Ti3+ and Ti4+, as determined through X-ray photoelectron spectroscopy, of greater than or equal to 1.5 and less than or equal to 20. In the formula, M is at least one element selected from the group consisting of Mg, Al, Zr, Mo, and Nb, and a, b, c, d, e, f, and ? are numbers satisfying ?0.1?a?0.2, 0.7<b?0.9, 0?c<0.3, 0?d<0.3, 0<e?0.25, 0?f<0.3, b+c+d+e+f=1, and ?0.2???0.2.