Abstract: A liquid fuel battery is described, having a vented case, an internal fuel chamber, and a plurality of substantially planar vertically stacked battery elements having separated fuel-sides and air sides. Such sides are separated by a series of anodic and cathodic seals. In one embodiment, a cathode contains doped carbon nanofibers and may be treated with polytetrafluoroethylene or another hydrophobic material. An anode current collector and/or cathode current collector may contain perforated metal, including metal mesh. Battery elements may be U-shaped to maximize the efficiency of the air-fuel interaction. The cathode is active for oxygen reduction and inactive for fuel oxidation.

Abstract: A method for selectively powering a battery-operated drug-delivery device, the device having a battery and a battery circuit, the method comprising: providing a battery isolator in a first position whereat it interrupts a battery circuit, whereby no power is provided to the device; and activating a fastening mechanism configured for fastening the device to a user, the activating causing the battery circuit to be uninterrupted by the isolator, such that power is provided to the device. Additionally, there is provided a selectively powered battery-operated drug-delivery device, comprising: a selectively-removable isolator disposed in a first position whereat it interrupts a battery circuit; the isolator movable to a second position whereat the battery circuit is uninterrupted by the isolator; and a mechanism for fastening the device to a user, activation of the fastening mechanism moving the isolator from the first position to the second position.

Abstract: An electric storage apparatus includes an insulation frame and electric storage device. The insulation frame includes a main plate portion in contact with the electric storage device, a first flange portion provided at one end portion of the main plate portion in a predetermined direction parallel to the main plate portion, and second flange portion provided at the other end portion of the main plate portion in the predetermined direction. The first flange portion has a pressing portion including a projecting portion projecting to be pressed on the electric storage device. The second flange portion includes a support portion which is in contact with the electric storage device on an opposite side with respect to the projecting portion.

Abstract: An aromatic polyamide porous film has a total number of branch points of pores in an area of 3 cubic micrometers obtained by three-dimensional structural analysis is 2,000 to 20,000, which ensures high rate characteristics and is also capable of suppressing deterioration of cycle characteristics and storage characteristics as well as abnormal heat generation, when used as a separator for battery, and also has excellent heat resistance; and a separator for battery and a battery, each including the aromatic polyamide porous film.

Abstract: Provided is a separator including a first layer of a porous substance and a second layer that is provided on at least one face of the first layer and that includes a resin material and particles. The second layer has an agglomeration network structure of the particles.

Abstract: The invention relates to a method of storing, transporting and supplying electrochemical energy, with storage and supply being physically separated.

Abstract: An system includes a first battery having a first desired operating temperature range between a first lower threshold temperature and a first upper threshold temperature and a second battery having a second desired operating temperature range between a second lower threshold temperature and a second upper threshold temperature. The system further includes a temperature control system coupled to the first and second batteries and configured to convey heat energy from the first battery to the second battery when the temperature of the second battery is less than the second lower threshold temperature to increase the temperature of the second battery toward the second desired operating temperature range and to convey heat energy away from the second battery when the temperature of the second battery is greater than the second upper threshold temperature to decrease the temperature of the second battery toward the second desired operating temperature range.

Abstract: A separator includes a monolayer-type polyolefin-based micro-porous film having a porosity of 40 to 60%, an average pore diameter of 60 nm or less, and an air permeability of 350 s/100 mL or less; and a porous coating layer formed on at least one surface of the micro-porous film and made of a mixture of a plurality of inorganic particles and a binder polymer. An electrochemical device having the above separator has excellent thermal stability and allows a high power while minimizing the occurrence of leak current.

Abstract: The present invention is directed to methods of transferring urea from an aqueous solution comprising urea to a MXene composition, the method comprising contacting the aqueous solution comprising urea with the MXene composition for a time sufficient to form an intercalated MXene composition comprising urea.

Abstract: A battery pack includes a plurality of unit batteries arranged side by side in a first direction, each unit battery including a can accommodating an opening including an electrode assembly having a first electrode plate, a second electrode plate, and a separator between the electrode plates, and a cap plate sealing the opening. The plurality of unit batteries may be arranged side by side in the first direction with all the cap plates exposed in the same direction. The battery pack may further include a protection circuit module adjacent to the cap plate with a circuit board extending in the first direction and a protection device coupled to it, wherein each unit battery further includes a first terminal on a first area of the cap plate and a second terminal on a second area of the cap plate, each coupled to the unit battery and the protection circuit module.

Abstract: A battery pack includes a bare cell including an electrode assembly, a can housing the electrode assembly; and a cap plate sealing an open end of the can; a protective circuit module on the bare cell and including a lead member electrically coupling the protective circuit module to the bare cell; an upper cover coupled to the bare cell and covering the protective circuit module; and a shock absorber between the upper cover and the lead member.

Abstract: Disclosed is a cathode active material for secondary batteries in which a carboxymethyl cellulose derivative is coated on surfaces of particles of a lithium transition metal oxide having the formula LixMyO2 where M: NiaMnbCoc wherein 0?a?0.9, 0?b?0.9, 0?c?0.5, and 0.85?a+b+c?1.05 and x+y=2, wherein 0.95?x?1.15.

Abstract: A battery unit includes a battery and a battery case which accommodates the battery and which is disposed underneath a floor panel FP, and cooling air is introduced from an air intake port to cool the battery. In the battery case, a cooling space C which communicates with the air intake port is formed separately from a battery accommodation space M which accommodates the battery.

Abstract: A positive electrode for a lithium secondary battery includes a positive activation material mixture that intercalates and de-intercalates lithium ions, wherein a first positive activation material having an average particle diameter D50 of from 12.5 ?m to 22 ?m and a second positive activation material having an average particle diameter D50 of from 1 ?m to 5 ?m are mixed with a weight ratio of from 95:5 to 60:40.

Abstract: An electricity storage battery is described, including an anode electrolyte solution 32 that contains a zinc redox material and an amine represented by a general formula (1) below: In the general formula (1), n is one of the integers 0 to 4, and each of R1, R2, R3 and R4 independently represents hydrogen, methyl or ethyl.

Abstract: A pressure vessel for the storage of pressurized fluids for a fuel cell system, a liner for the pressurized vessel and a method of making. The method of manufacturing a pressure vessel includes forming a lost core assembly, a reinforcement structure around the assembly and removing the core from said assembly to define an internal compartment. The lost core assembly includes a first sacrificial material used to define the shape of the pressure vessel's internal compartment, boss attachable to the first material for the introduction and removal of the fluid into the pressure vessel, and a second material for placement around the first material and at least a portion of the boss such that upon removal of the first material, the second material defines the liner. The reinforcement structure is wound around the liner to give the pressure vessel a unitary, composite structure.

Abstract: A device (10) for use in a fuel cell includes a fuel-cell flow-field channel (18) having a channel-inlet section (42) and a channel-outlet section (44). At least one of the channel-inlet section (42) or the channel-outlet section (44) includes an obstruction member (46) that partially blocks flow through the fuel-cell flow-field channel (18).

Abstract: In one embodiment, an electrochemical cell includes a negative electrode including a form of lithium, a positive electrode spaced apart from the negative electrode and including an electron conducting matrix, a current collector, and a conductor, the conductor having a potential controllable with respect to the collector potential, a separator positioned between the negative electrode and the positive electrode, an electrolyte including a salt, and a charging redox couple located within the positive electrode, wherein the electrochemical cell is characterized by the transfer of electrons from a discharge product located in the positive electrode to the electron conducting matrix by the charging redox couple during a charge cycle.

Abstract: There is provided a lithium-transition metal oxide powder with a coating layer containing lithium niobate formed on a part or the whole part of a surface of a lithium-transition metal oxide particle and having a low powder compact resistance, and a positive electrode active material for a lithium ion battery containing the lithium-transition metal oxide powder. Specifically, there is provided the lithium-transition metal oxide powder composed of a lithium-transition metal oxide particle with a part or the whole part of a surface coated with a coating layer containing lithium niobate, wherein a carbon-content is 0.03 mass % or less.

Abstract: The disclosure relates to new compositions comprising an, B12FxH12?x? anion that may be prepared chemically or electrochemically by oxidation of B12FxH12?x2? salts. This anion can be generated electrochemically in a voltammetry experiment, or by chemically by treatment of the (2?) anions with powerful oxidants such as XeF2 or NO2(+) salts. The new compositions can be used as 1 electron chemical oxidants and in electrochemical cells such as lithium ion batteries where their formation at elevated potential can serve to limit the upper limit of voltage during the overcharge of such a cell.