Abstract: A battery case of an electric vehicle includes a drain hole for discharging water in the interior to the outside and a water detection device disposed in the vicinity of the drain hole. At least part of an upper face of a case bottom wall of the battery case is inclined downward toward the drain hole. Accordingly, not only is it possible to mold the downward inclination of the upper face of the case bottom wall of the battery case easily at the time of die casting without increasing the number of components, but it is also possible to guide water that has entered the interior of the battery case smoothly toward the drain hole, detect it reliably by the water detection device, and discharge it quickly via the drain hole.

Abstract: The present application relates to a current collector and a secondary battery. The current collector is used to electrically connect a pole and tab of a secondary battery, and comprises: a first sheet; a second sheet that is disposed to intersect the first sheet, the second sheet being used to electrically connect to the pole; a current collection unit, the current collection unit and the second sheet being disposed at two opposite sides of the first sheet in a first thickness direction thereof, and the first thickness direction thereof intersecting with a second thickness direction of the second sheet; the current collection unit comprises a first current collection sheet, the first current collection sheet is used to electrically connect to the tab, and the first current collection sheet is provided with a first connection terminal that is connected to the first sheet.

Abstract: The present invention refers to a coolant distributor for a battery module housing with a hollow profile enclosing a coolant channel and a plurality of coolant junctions, each extending through a first portion of the hollow profile and providing a fluid connection between the coolant channel and a coolant port. The invention further relates to a battery module housing with a bottom plate comprising a plurality of embedded coolant ducts and a coolant distributor according to the invention that is welded to the bottom plate, such that each of the plurality of coolant ports is aligned with one of a plurality of inlet openings of the coolant ducts. The present invention further relates to a battery system housing, comprising a plurality of battery module housings according to the invention and a plurality of pipe couplings for interconnecting adjacent battery module housings, and to the pipe coupling.

Abstract: An electrode assembly includes a cell stack part having (a) a structure in which one kind of radical unit is repeatedly disposed, or (b) a structure in which at least two kinds of radical units are disposed in a predetermined order. The one kind of radical unit has a four-layered structure in which first electrode, first separator, second electrode and second separator are sequentially stacked or a repeating structure in which the four-layered structure is repeatedly stacked. Each of the at least two kinds of radical units are stacked by ones to form the four-layered structure or the repeating structure. The separator has a larger size than the electrode to expose an edge part of the separator to outside of the electrode and the separator. The edge parts of the separators included in one radical unit or in the cell stack part are attached to form a sealing part.

Abstract: Battery module for an electrical storage system for an electric drive vehicle; wherein the battery module includes: a set of parallel cylindrical chemical batteries arranged side by side, at least two conductive plates arranged on said opposite sides and welded to the corresponding opposite terminals of said set of batteries, at least one refrigerated wall set adherent to one of said at least two conductive plates, at least one pad sandwiched between said at least one refrigerated wall and said at least one respective conductive plate, in which said pad is made of an electrically insulating and thermally conductive material.

Abstract: The present disclosure provides a battery box and a vehicle, the battery box comprises an upper box body, a lower box body, a connecting member, a fixing member. The upper box body comprises a first eave portion, the lower box body comprises a second eave portion. The first eave portion is provided with a first connecting hole, the second eave portion is provided with a second connecting hole and a mounting hole. The connecting member passes through the first connecting hole and the second connecting hole to connect the upper box body and the lower box body. The fixing member passes through the mounting hole to make the lower box body mounted to external equipment, compared with the conventional battery box, the lower box body is equivalent to the arrangement of eliminating the third eave portion, it simplifies the structure and reduces the weight, thereby improving the energy density.

Abstract: Electrode material, for a lithium-ion-based electrochemical cell, containing primary particles of a Mn-containing spinel-type metal oxide selected from the group consisting of spinel-type lithium-nickel-manganese-oxide, spinel-type lithium-manganese-oxide, and mixtures thereof. Mn of the Mn-containing spinel-type metal oxide is partially substituted with a substitution-element selected from the group consisting of Si, Hf, Zr, Fe, Al, V and mixtures thereof and the primary particles are aggregated in order to form secondary particles, with the secondary particles having the shape of a microsphere.

Abstract: Provided are battery modules. Each module may comprise an enclosure having a base, the base having a plurality of first holes disposed therein, the enclosure including a coolant input port, a coolant output port; the enclosure having a coolant sub-system for circulating coolant being directed into the enclosure through the coolant input port and the plurality of first holes and out of the enclosure through the coolant output port; a center divider affixed to the enclosure; a module cover coupled to the enclosure at an opposite end of the module from the center divider; a retainer disposed within the enclosure and configured to support a plurality of cells; a current carrier disposed between the module cover and the retainer; and the plurality of cells disposed between the current carrier and the center divider, the cells being coupled to and supported by the retainer.

Abstract: A battery case accommodates therein a battery cell that has a first main surface and a second main surface opposite the first main surface. The battery case includes a chassis with which the first main surface of the battery cell comes into contact, and a holding plate that comes into partial contact with the second main surface of the battery cell and presses against the battery cell.

Abstract: A fuel cell system includes a control unit that is configured to perform pressure reduction control for increasing a flow rate of cathode gas supplied to a fuel cell from a turbo compressor, by controlling a pressure adjusting valve such that a pressure in the fuel cell is lower when a pressure reduction condition is fulfilled than when the pressure reduction condition is not fulfilled. The pressure reduction condition is a condition that an outside air pressure determined based on outside air pressure-associated information is lower than an outside air pressure threshold determined in advance and that an amount of water determined based on water amount-associated information is equal to or larger than a water amount threshold determined in advance.

Abstract: The present disclosure relates to a battery module comprising a first battery unit and a second battery unit, each of which comprises N secondary batteries, N is an integer greater than or equal to 2, and each secondary battery comprises a first electrode lead and a second electrode lead having opposite polarities. The first electrode lead has a melting point higher than that of the second electrode lead, and N first electrode leads of the first battery unit and N second electrode leads of the second battery unit are arranged to form a layered construction. The battery module has a plurality of connection points distributed in the layered construction, the number of which is greater than or equal to N, and each connection point is adapted to electrically connect one first electrode lead of the first battery unit to at least one second electrode lead of the second battery unit.

Abstract: A grommet is provided. The grommet includes a pedestal and a wire fixing member configured to fix a wire, wherein each of the pedestal and the wire fixing member has at least one hole through which the wire is configured to be inserted, and the pedestal has a pool portion configured to accommodate a resin agent.

Abstract: The present disclosure relates to a secondary battery and a battery module. The secondary battery includes: a casing including a receiving cavity and an opening which is in communication with the receiving cavity; an electrode assembly housed in the casing; a first top cover plate, which covers the opening and is connected with the casing, the first top cover plate including an insertion portion extending into the casing and an exposed portion disposed outside the casing; and a sealing member; the casing is provided with a first through hole, the insertion portion is provided with a second through hole, the second through hole includes an inlet which is in communication with the first through hole and an outlet which is in communication with the receiving cavity, and the sealing member is connected to the casing and seals the first through hole.

Abstract: A fuel cell system includes: a fuel cell; a reformer to generate a hydrogen-containing gas; an electric power generation raw material supply unit; a reforming material supply unit configured to supply at least one of reforming water and reforming air, to the reformer; an oxidizing gas supply unit to supply an oxidizing gas to a cathode of the fuel cell; a combustor to ignite an exhaust gas discharged from the fuel cell; and a controller. In an operation stop process of the fuel cell system, the controller causes the oxidizing gas supply unit to supply the oxidizing gas, causes the electric power generation raw material supply unit and the reforming material supply unit to intermittently supply the electric power generation raw material and at least one of the water and the air to the reformer, and causes the ignitor to perform an ignition operation.

Abstract: A fabricating method of an electrode assembly according to the present invention includes forming a radical unit having a four-layered structure obtained by stacking a first electrode, a first separator, a second electrode, and a second separator one by one, and stacking at least one radical unit one by one to form a unit stack part.

Abstract: A battery pack includes at least two battery cells; a circuit board to control charging and discharging operations of the battery cells; and a connection tab electrically connected to the battery cells, extending towards the circuit board, and including a bent portion proximal to the battery cells and located within a battery area defined by the battery cells. A battery pack suitable for a compact type device is provided and a low-resistive design may be applied to the battery pack.

Abstract: A voltage is applied between an anode and a cathode in a fuel cell. The voltage is increased to a predetermined upper limit, and then decreased to a predetermined lower limit. The voltage increase and decrease are repeated a predetermined number of times. The voltage is applied to the fuel cell while supplying a hydrogen-containing gas to an anode and supplying an inert gas to a cathode.

Abstract: A fuel cell system includes: a fuel cell; a compressor; a supply adjusting valve adjusting an amount of air to be supplied; a bypass valve adjusting a flow rate of the air passing through the bypass flow passage; a flow rate measuring unit measuring a flow rate of the air; a pressure measuring unit measuring a pressure of the air; an opening control unit outputting an opening control signal for controlling degrees of opening of the supply adjusting valve and the bypass valve; a rotation speed control unit outputting a rotation speed control signal for controlling a rotation speed of the compressor; and a determination unit determining that the bypass valve is stuck open when the flow rate is less than a flow rate threshold value, and determines that pipe disconnection has occurred when the flow rate is equal to or greater than the flow rate threshold value.

Abstract: A circuit body includes: a plurality of conductors and a substrate having flexibility and provided with the conductors, in which the substrate includes a battery wiring portion which is routed along each row of electrodes and where one ends of the conductors are respectively connected to bus bars, and a pair of connector connecting portions in which the other ends of the conductors provided in respective battery wiring portions are located, the pair of connector connecting portions include a connector mounting portion where the pair of connector connecting portions are guided from opposite directions, and in the connector mounting portion, the other ends of the conductors of the pair of the connector connecting portions are alternately arranged and an arrangement order corresponds to the potential order of the bus bars connected to the conductors.

Abstract: A redox flow battery includes first and second cells. Each cell has electrodes and a separator layer arranged between the electrodes. A first circulation loop is fluidly connected with the first electrode of the first cell. A polysulfide electrolyte solution has a pH 11.5 or greater and is contained in the first recirculation loop. A second circulation loop is fluidly connected with the second electrode of the second cell. An iron electrolyte solution has a pH 3 or less and is contained in the second circulation loop. A third circulation loop is fluidly connected with the second electrode of the first cell and the first electrode of the second cell. An intermediator electrolyte solution is contained in the third circulation loop. The cells are operable to undergo reversible reactions to store input electrical energy upon charging and discharge the stored electrical energy upon discharging.