Abstract: Alkali metal-sulfur cells and batteries with cathode layers that store alkali metal charge carriers (e.g., lithium ions) in agglomerates of sulfurized carbon. The cathode layers lack costly and environmentally unfriendly nickel and cobalt. The cathode layers are composites that include agglomerates of sulfurized-carbon particles in a conductive binder and interconnected by sp2-bonded carbon materials, such as carbon nanotubes or nanoribbons, that extend within the agglomerates and between the sulfurized-carbon particles.

Abstract: A battery pack includes a plurality of battery modules, each battery module having a plurality of stacked battery cells and a casing member surrounding the plurality of battery cells, and a connection member connecting the plurality of battery modules to each other.

Abstract: Systems and methods for thermal gradient during electrode pyrolysis may include fabricating the battery electrode by pyrolyzing an active material on a metal current collector, wherein the active material comprises silicon particles in a binder material, the binder material being pyrolyzed such that a resistance at an inner surface of the active material in contact with the current collector is at least 50% higher than a resistance at an outer surface of the active material. The active material may be pyrolyzed by electromagnetic radiation, which may be provided by one or more lasers, which may include one or more CO2 lasers. The electromagnetic radiation may be provided by one or more infrared lamps. An outer edge of the current collector may be gripped using a thermal transfer block that removes heat from the current collector during pyrolysis of the active material and subsequent cool down.

Abstract: A battery module having a plurality of battery cells (2), in particular lithium-ion battery cells (20) which in a longitudinal direction (3) of the battery module (1) are disposed so as to be mutually adjacent, and the plurality of battery cells (2) are mutually braced by means of a tensioning element (4), wherein a thermal compensation element (5) is disposed between a battery cell (2) and the tensioning element (4), and the tensioning element (4), on a side of the tensioning element (4) that faces away from the battery cell (2), is connected to a heating element (100).

Abstract: A battery pack includes a case, a first set of battery cells and a second set of battery cells received in the case, a circuit board, and a main power output interface. The first set of battery cells and the second set of battery cells can be connected in series or in parallel, and output two kinds of working voltage through the main power output interface. The battery pack further includes an extended power output interface and a switch provided between the first set of battery cells and the second set of battery cells. The battery pack can output a third voltage for an external device through the extended power output interface when the first set of battery cells and the second set of battery cells are connected in series through the switch. It's safe and reliable when charging the external device.

Abstract: Disclosed is a power storage element including a positive electrode current collector layer and a negative electrode current collector layer which are arranged on the same plane and can be formed through a simple process. The power storage element further includes a positive electrode active material layer on the positive electrode current collector layer; a negative electrode active material layer on the negative electrode current collector layer; and a solid electrolyte layer in contact with at least the positive electrode active material layer and the negative electrode active material layer. The positive electrode active material layer and the negative electrode active material layer are formed by oxidation treatment.

Abstract: An all-solid-state battery includes a pair of electrode layers consisting of first and second electrode layers, and a solid-state electrolyte layer positioned between the pair of electrode layers, wherein the first electrode layer contains an electrode active material having an olivine-type crystalline structure, the solid-state electrolyte layer contains a solid-state electrolyte having a NASICON-type crystalline structure, and the solid-state electrolyte layer in the vicinity of the first electrode layer is expressed by a composition formula LixAyCozM?aM?bP3Oc. The all-solid-state battery can improve the long-term cycle stability.

Abstract: A metal-gas battery including: a battery core, gas container and a movable member. The battery core including a metal anode; a non-aqueous electrolyte; a porous cathode; and terminals for providing electrical power from the battery core. The gas container being configured to hold a pressurized gas. The movable member being configured to be movable from a non-activated position in which the pressurized gas in the container is sealed from entering the porous cathode and an activated position in which the pressurized gas flows into the porous cathode to activate the battery core.

Abstract: An electrochemical system having two metallic separator plates, an electrochemical cell arranged between the separator plates and sealed by at least one sealing element, and fixing elements for fixing the separator plates. The fixing elements comprise at least two fixing elements which are designed as integral with the first or with the second separator plate, which differ from the at least one sealing element, are spaced apart from the at least one sealing element parallel to the plate planes of the separator plates, and project at least in sections beyond the plate planes of the separator plates in a stacking direction. The first fixing element is thereby supported on the second fixing element in such a way that the second fixing element prevents a displacement of the first separator plate relative to the second separator plate.

Abstract: Presented are thermomechanical fuses for mitigating heat propagation across electrochemical devices, methods for making and methods for using such fuses, and traction battery packs with load-bearing, sacrificial thermomechanical fuses to help prevent thermal runaway conditions. A battery assembly includes an electrically insulating battery housing with multiple battery cells disposed inside the battery housing. These battery cells are electrically interconnected, in series or parallel, and stacked in side-by-side facing relation to form adjacent, mutually parallel stacks of battery cells. Thermomechanical fuses thermally connect neighboring stacks of the battery cells. Each thermomechanical fuse is formed, in whole or in part, from a dielectric material that undergoes deterioration or deformation at a predefined critical temperature; in so doing, the thermomechanical fuse thermally disconnects a first stack of cells from a neighboring second stack of cells.

Abstract: Set forth herein are pellets, thin films, and monoliths of lithium-stuffed garnet electrolytes having engineered surfaces. These engineered surfaces have a list of advantageous properties including, but not limited to, low surface area resistance, high Li+ ion conductivity, low tendency for lithium dendrites to form within or thereupon when the electrolytes are used in an electrochemical cell. Other advantages include voltage stability and long cycle life when used in electrochemical cells as a separator or a membrane between the positive and negative electrodes. Also set forth herein are methods of making these electrolytes including, but not limited to, methods of annealing these electrolytes under controlled atmosphere conditions. Set forth herein, additionally, are methods of using these electrolytes in electrochemical cells and devices. The instant disclosure further includes electrochemical cells which incorporate the lithium-stuffed garnet electrolytes set forth herein.

Abstract: The invention relates to a rechargeable battery (1) comprising several cylindrical cells (2) for storing electrical energy and at least one cooling device (4) for cooling or controlling the temperature of the cells (2), wherein the cooling device (4) has at least one coolant channel (5), at least one coolant inlet (6) and at least one coolant outlet (7), and has at least one single-layer or multi-layer film (8) which is at least partially arranged between the cells (2).

Abstract: A bicycle battery system includes a battery assembly and a battery lock. The battery assembly includes a battery and a handle assembly mounted to the battery. The handle assembly includes a handle mount, a handle plunger, and a handle. The battery lock is mounted within a cavity of a frame of a bicycle and configured to secure the battery assembly within the cavity. The battery lock includes a lock plunger, a movable latch, and a stationary latch. The lock plunger is configured to press a portion of the handle mount against the movable latch when the battery lock is in a locked position such that the battery assembly is securely mounted within the cavity. Responsive to the battery lock being in an unlocked position, the handle plunger is configured to cause the handle mount and the handle to pivot away from a face of the battery such that at least the portion of the handle mount engages the stationary latch of the battery lock.

Abstract: Electrode protection in electrochemical cells, and more specifically, electrode protection in both aqueous and non-aqueous electrochemical cells, including rechargeable lithium batteries, are presented. Advantageously, electrochemical cells described herein are not only compatible with environments that are typically unsuitable for lithium, but the cells may be also capable of displaying long cycle life, high lithium cycling efficiency, and high energy density.

Abstract: A multiply redundant safety system that protects humans and assets while transfer(s)/fueling of on road/off road, rail, marine, aircraft, spacecraft, rockets, and all other vehicles/vessels utilizing Compressed and or Liquefied Gas Fuels/compound(s). Utilizing Natural Gas Chemical Family of Hydrogen/Propane/ethane/ammonia/and any mixtures along with or with out oxidizer(s), such as Liquefied Oxygen, Oxygen Triplet (O3)/ozone/hydrogen peroxide/peroxide/solid oxidizer(s) one or more processors, utilizing Artificial Intelligence techniques/machine learning in combination with one or more sensors; in combination with one or more micro switches/actuator(s) combine to detect any leaks/fire(s)/or explosion hazards/vehicle motion/arc's, spark(s)/and other hazards for quickly mitigating/locking out/stopping fueling/gas/transfers/vehicle releasing system(s).

Abstract: A fuel cell system includes a fuel cell stack, a fuel gas supply path, an injector, an ejector, a circulation path, an outlet port pressure detection unit, and a control device. The control device stops driving the injector when an ejector outlet port pressure is equal to or more than a required upper limit value with the injector driven, and drives the injector when the ejector outlet port pressure is equal to or less than a required lower limit value with the injector stopped. The control device reduces the required upper limit value stepwise and reduces the required lower limit value stepwise in a range defined by a first target upper limit value and a second target upper limit value when a required load is varied from a first required load to a second required load and a load reduction amount is more than a first predetermined load.

Abstract: A membrane-electrode assembly including a polymer electrolyte membrane, and electrocatalyst layers disposed on both surfaces of the polymer electrolyte membrane, with a total light transmittance measured after delamination of both the electrocatalyst layers by using an adhesive member is 40% or less. The total light transmittance is at an electrocatalyst layer located part, when a total light transmittance at an electrocatalyst layer non-located part is taken to be 100%. The viscous member has an adhesive force of 3 N/10 mm or more when measured by pulling the viscous member adhered to a stainless steel in a 180°angle direction relative to the stainless steel, for delamination from the stainless steel.

Abstract: A flow battery system and methods are provided for eliminating crossover issues of active materials in redox flow batteries. A solid adsorbent with large specific surface area is disposed in an electrolyte of at least one half-cell, in contact with the electrolyte. During a charging process, the active material in a charged state is captured and stored on surfaces of the adsorbent, so that concentrations of the active material in the electrolyte in the charged state is reduced and the crossover is inhibited. During a discharging process, the active material is desorbed from the adsorbent to the electrolyte and pumped into the stack for reaction. The flow battery stack can have a microporous membrane separator. The electrolyte of the flow battery includes zinc iodide as active material and polyethylene glycol (PEG) as an additive.

Abstract: A flow battery includes a negative electrode, a positive electrode, a first liquid in contact with the negative electrode, a second liquid in contact with the positive electrode, and a lithium-ion-conductive film disposed between the first liquid and the second liquid. At least one of the first liquid or the second liquid contains a redox species and lithium ions. The lithium-ion-conductive film includes an inorganic member containing zeolite.

Abstract: In accordance with at least selected embodiments or aspects, the present invention is directed to improved, unique, and/or complex performance lead acid battery separators, such as improved flooded lead acid battery separators, batteries including such separators, methods of production, and/or methods of use. The preferred battery separator of the present invention addresses and optimizes multiple separator properties simultaneously. It is believed that the present invention is the first to recognize the need to address multiple separator properties simultaneously, the first to choose particular multiple separator property combinations, and the first to produce commercially viable multiple property battery separators, especially such a separator having negative cross ribs.