Abstract: A spinning electrode fuel cell is disclosed. The spinning electrode fuel cell includes a housing and a stacked disk assembly which is rotatably mounted in the housing. The stacked disk assembly includes multiple electrochemical cells connected to each other. A motor engages the stacked disk assembly for rotating the stacked disk assembly in the housing. A fuel flow pathway is provided in the housing for distributing a fuel to the electrochemical cells. An oxidant flow pathway is provided in the housing and physically separated from the fuel flow pathway for distributing an oxidant to the electrochemical cells. A method of fabricating a fuel cell is also disclosed.

Abstract: A subassembly for a fuel cell stack includes a fuel cell plate and a datum hole formed in the fuel cell plate for alignment of the fuel cell plate during assembly of the fuel cell stack. The subassembly also includes a datum insert disposed adjacent the datum hole of the fuel cell plate. The datum insert is configured to militate against a bending of the fuel cell plate at the datum hole during the assembly of the fuel cell stack.

Abstract: Disclosed herein is a battery pack including a battery cell, an insulative mounting member coupled to the battery cell in a specific coupling structure, a positive temperature coefficient (PTC) element having a lower connection plate directly coupled to the battery cell while the lower connection plate is not bent, and an insulative cap, whereby the number of the members for electrical connection and electrical insulation is reduced, with the result that the assembly process of the battery pack is greatly simplified, the dead space is reduced, with the result that the capacity of the battery in the same-sized battery pack is maximized, and the structural stability of the battery pack against an external force is improved.

Abstract: A battery comprises a battery case forming a substantially sealed enclosure and an electrode stack within the enclosure. The electrode stack includes a first set of electrode elements and a second set of electrode elements. The electrode elements in the second set alternate with the electrode elements in the first set within the electrode stack. In addition, the electrode elements include coincident alignment apertures. The coincident alignment apertures are configured to restrict rotation of the electrode elements to align the electrode elements when the alignment apertures are positioned over mating alignment protrusions during assembly of the electrode stack. The battery further comprises a feedthrough including a feedthrough pin extending through the battery case. The feedthrough pin is electrically coupled to the electrode stack and serves as a positive terminal for the battery.

Abstract: A battery has enhanced reliability by protecting the battery from external impacts by separately installing a reinforcement structure on a casing and an electrode assembly housed in the casing. The configuration reduces or minimizes volumetric change in the dimensions due to volumetric expansion of the electrode assembly. The battery may include an electrode assembly having first and second electrode plates with a separator interposed therebetween. First and second terminal portions extending from the first and second electrode plates and a pouch casing having an open portion and for housing the electrode assembly. A pouch cover coupled and sealed with an opening of the pouch casing. The pouch cover having at least one throughhole and at least one electrode pin fastened to the throughhole. The electrode pin is electrically connected to one of the first and second terminal portions of the electrode assembly.

Abstract: A method of removing moisture from a fuel cell stack. The presence of liquid water in a fuel cell stack is especially undesirable should the temperature drop below freezing since the structures within the fuel cell are subject to degradation. One method includes measuring the temperature in the vicinity of a fuel cell vehicle when the fuel cell vehicle has been shut down and measuring the time elapsed since fuel cell vehicle shut off, and then flowing a moisture-removing medium through the fuel cell when the ambient temperature drops to a predetermined temperature and a time delay condition is satisfied. The moisture-removing medium is flowed through the fuel cell for a sufficient time to remove a sufficient amount of the water to inhibit degradation by freezing of water. A system which implements the method of the present invention is also provided.

Abstract: A secondary battery includes an electrode assembly including a positive electrode, a negative electrode and a separator interposed therebetween. A container receives the electrode assembly, and a cap assembly is fixed to the container to seal the container. A collector plate is electrically connected to the electrode assembly. The positive electrode, the negative electrode, or both has an uncoated region uncoated with active material. The uncoated region has a bent portion and the collector plate can be electrically connected to the bent portion of the uncoated region.

Abstract: An electrochemical system includes a reversible fuel cell system which generates electrical energy and reactant product from fuel and oxidizer in a fuel cell mode and which generates the fuel and oxidant from the reactant product and the electrical energy in an electrolysis mode. The system also includes a reactant product delivery device which is adapted to supply the reactant product to the reversible fuel cell system operating in the electrolysis mode, in addition to or instead of the reactant product generated by the reversible fuel cell system in the fuel cell mode, and a fuel removal device which is adapted to remove the fuel generated by the reversible fuel cell system operating in the electrolysis mode from the electrochemical system.

Abstract: An electrochemical device comprising an electrolyte and at least one electrode plate, the electrochemical device having a metal part constituting the electrode plate or being connected to the electrode plate; the electrolyte comprising a solute and a solvent dissolving the solute; the metal part having an insulating oxide layer for preventing the electrolyte from creeping on at least part of the surface of the metal part.

Abstract: A battery pack comprising a lithium ion secondary battery and a current interrupting device for protecting the secondary battery, the secondary battery comprising positive and negative electrodes, a separator interposed between the positive and negative electrodes and a non-aqueous electrolyte, the current interrupting device comprising a recoverable device and a non-recoverable device, the recoverable and non-recoverable devices being connected in series with each other, and the non-recoverable device having an operating temperature of not less than 90° C. and less than 150° C.

Abstract: An electrochemical device such as a battery and a fuel cell having two electrolytes between the anode and the cathode. The electrochemical device is preferably arranged with an alkaline electrolyte in contact with the anode and an acidic electrolyte in contact with the cathode. The electrolytes are separated by a bipolar membrane that preferably also provides ionic conductivity between the two electrolytes and also generates a supply of protons and hydroxide anions. The electrochemical device achieves fifty percent higher operating voltage and power compared to fuel cells with a single electrolyte.

Abstract: A battery pack including a thin outline battery in an external case. The external case is provided with openings exposing the front and back of the thin outline battery to the outside, and is formed in the shape of a rectangular frame which covers both sides and both ends of the thin outline battery. The thickness of the external case is essentially equal to the thickness of the thin outline battery, or the external case is made thinner than the thin outline battery.

Abstract: The present invention is a fuel cell with embedded series/parallel mechanism, which comprises: an anode circuit board including: anode current collector circuits; anode wirings which are electrically connected to these anode current collector circuit, respectively; anode pads which are configured at the board edge of the anode circuit board and electrically connected to these anode wirings; and, a cathode circuit board including: cathode current collector circuits; cathode wirings which are electrically connected to these cathode current collector circuits, respectively; and, cathode pads which are configured at the board edge of the cathode circuit board and electrically connected to these cathode wirings, in which each cathode pad is corresponding to one opposite anode pad; and, membrane electrode assemblies which are bonded and sandwiched between the anode circuit board and the cathode circuit board; U-shape connection terminals, each of which is clipped between a pair of anode pad and cathode pad in oppos

Abstract: An electrochemical cell or cell system includes an air mover, such as a fan, and one or more pressure-sensitive mechanisms, such as a slit valve, that allow air to enter or to exit the cell or system.

Abstract: Fuel cell fuel supplies having single and multiple compartments for storing and containing fuel cell fuel precursor reagents. These fuel supplies allow storage and packaging of precursors for in situ production and use of fuel cell fuel. A method for making fuel cell fuel and a fuel cell system is also disclosed.

Abstract: A catalyst device for use with battery cells to recombine oxygen and hydrogen gas and thereby improve the performance and life of such cells. The catalyst device has the ability to filter out catalyst poisons and control the temperature of the recombination reactions. A container houses the catalyst within a chamber. A catalyst poison filter is provided in the chamber with the catalyst. The movement of gas and vapor to and from the chamber is controlled by a microporous section of the device. The pore size is chosen to allow gas and vapor to pass, but not liquids, and to also prevent a flame from passing through. Within these parameters the pore size can also be chosen to control and or limit the amount of gas that can pass through to the catalyst in a given time period. Preferably, the microporous section is formed as a disc that seals an opening in the chamber.

Abstract: A rechargeable battery comprises an electrode assembly that comprises a positive plate, a negative plate, and a separator interposed between those two plates. It also includes a container for the electrode assembly, a cap assembly fixed to the container to seal the container, and a collector plate coupled to the positive plate or the negative plate of the electrode assembly. The collector plate includes a plate-shaped body and at least two tabs that are integrally formed with the body to be coupled to the cap assembly.

Abstract: There is disclosed a battery pack, which has a plate-shaped resin-formed body to divide an internal space of the battery pack into at least two spaces in a thickness direction thereof, so that a battery is received in a first internal space, while a wiring substrate having a control circuit packaged thereon is placed in a second internal space, thereby allowing the battery pack to hold an input/output circuit or the like of a memory card securely in a limited space in the battery pack, while ensuring that a sufficient insulation is provided to the battery, when the battery pack is used for PDA's, for instance.

Abstract: A battery strength indicating and switch means on a battery which is coupled across the terminals of the battery and which is provided with an indicating means to indicate the strength of the battery and in addition, the battery strength indicating means is also provided with an in-line switch which can easily be depressed to complete the circuit so as to place the indicator means across the terminals of the cell and display the charge of the battery.

Abstract: A cordless drive assembly for driving various orthopedic surgical instruments is described. The drive assembly is battery powered and includes tracks in the handle portion of its housing for receiving the battery. A latch locks the battery to the housing. A combination of a rechargeable, detachable battery system and a power tool. The battery slides onto the power tool through a complementary groove and flange structure.