Abstract: A plurality of sets of power storage devices each formed by connecting a plurality of power storage devices in parallel are connected in series. A wiring module that is arranged on a plurality of power storage devices each having electrode terminals, the wiring module including: a plurality of connection bus bars each connected to a corresponding electrode terminal and each having 2n (n is a natural number greater than or equal to 2) electrode connection portions; and an insulating protector that houses the plurality of connection bus bars. In each of the plurality of connection bus bars, the cross-sectional areas of the second electrode connection portion from the right of the connection bus bar and the third electrode connection portion from the right of the connection bus bar are set to be larger than the cross-sectional areas of the other electrode connection portions.

Abstract: Battery systems are provided that include a plurality of modules positioned within an enclosed space (e.g., a room, data center or storage system), wherein at least one of the modules includes a plurality of lithium ion cells and thermal insulator(s) positioned between adjacent lithium ion cells, and wherein the battery systems offer a requisite level of safety by scaling the system such that the internally available volume of the enclosed space (measured in liters) is in the range of about 39±5 times and 80±5 times the amp-hour (Ah) capacity of lithium ion cell(s) positioned therewithin, and associated methods for safe deployment of battery systems in enclosed spaces. The relevant lithium ion cell(s) for determination of Ah capacity is/are the lithium ion cell(s) that is/are thermally insulated relative to adjacent lithium ion cell(s).

Abstract: A secondary battery includes: an electrode assembly including a main tab; a current collecting member adjacent the main tab; and a sub-tab electrically connecting the main tab to the current collecting member. The main tab is in and welded to the sub-tab, and the sub-tab and the main tab are bent in the same direction on the current collecting member.

Abstract: An apparatus includes a thermal battery, which includes a housing and one or more battery cells within the housing. Each battery cell includes an anode, a cathode, and an electrolyte. The electrolyte in each battery cell is configured to be in a solid state when the battery cell is inactive. The apparatus also includes a phase change material around at least part of the housing. The phase change material is configured to conduct external heat into the housing in order to melt the electrolyte in each battery cell and activate the battery cell. The phase change material is also configured to change phase in order to reduce conduction of the external heat into the housing.

Abstract: Various variable planar pouch battery pressure optimization systems are presented. The system may include a first and second plate, between which a planar pouch battery cell is installed. Multiple pressure application components may be individually controlled to apply varying pressure to the first and second plate. Various pressure patterns may be tested in order to determine a pressure pattern that optimizes at least one electrical characteristic of the planar pouch battery cell.

Abstract: Batteries according to embodiments of the present technology may include a first battery cell including a first current collector. The batteries may include a second battery cell including a second current collector. The second battery cell may be vertically aligned with the first battery cell, and the second current collector may be positioned adjacent the first current collector. The first battery cell and the second battery cell may be electrically coupled together so the first battery cell and the second battery cell transfer current through the cells between the first current collector and the second current collector. The batteries may also include a patterned coupling material disposed between the first battery cell and the second battery cell and joining the first current collector with the second current collector.

Abstract: The disclosure provides a battery pack and a vehicle. The battery pack includes: a housing including a housing bottom wall and a housing side wall which form an accommodating space; a battery module disposed in the accommodating space and including a plurality of batteries, where a case side wall of the battery includes two first side walls oppositely disposed along a first direction and two second side walls oppositely disposed along a second direction; and a frame structure disposed in the accommodating space, which includes a first beam and a second beam respectively located at two ends of the battery module along the first direction, the first beam and the second beam extend along the second direction and are disposed opposite to the first side wall along the first direction, the first beam is non-detachably connected to the housing, and the second beam is detachably connected to the housing.

Abstract: To prevent a reduction in the performance of a unit cell due to a gas shortage in a cathode chamber. An electrochemical reaction unit includes a unit cell, a cathode-side member, and an anode-side member. The electrochemical reaction unit satisfies the following condition on at least one of supply and discharge sides of the cathode chamber. Condition: the distance between the midpoint between opposite end points of a cathode-side opening group including an opening of a cathode-side communication channel and the midpoint (specific point) between opposite end points of an anode-side supply opening group including an opening of an anode-side supply communication channel in a direction parallel to an inner circumferential surface of a cathode chamber hole is shorter than the distance between the centroid of a cathode-side gas channel hole and the specific point in the direction parallel to the inner circumferential surface of the cathode chamber hole.

Abstract: A fuel cell system includes at least one topping fuel cell module including a topping anode portion configured to output a topping anode exhaust, and a topping cathode portion configured to output a topping cathode exhaust; at least one bottoming fuel cell module including a bottoming anode portion configured to output a bottoming anode exhaust, and a bottoming cathode portion configured to output a bottoming cathode exhaust; and an electrochemical hydrogen separation unit configured to receive at least a portion of the topping anode exhaust, to output a hydrogen-rich stream, and to output a CO2-rich stream. The bottoming anode portion is configured to receive the CO2-rich stream from the electrochemical hydrogen separation unit.

Abstract: Provided is a battery pack. The battery pack includes: a bare cell including a bare cell main body including an electrode assembly and a sealing portion around the bare cell main body; a circuit board electrically connected to the bare cell and comprising a front surface portion opposite to the bare cell main body, wherein a chamfer portion that is inclined diagonally with respect to the front surface portion is formed at a side of the front surface portion; and a connection line extending via the chamfer portion of the circuit board. Accordingly, physical interference with a set device in which the battery pack is mounted may be avoided in the limited space of the set device, and damage to or a short circuit of the connection line which establishes an electrical connection with the set device may be prevented.

Abstract: A lithium ion secondary battery includes a cathode, an anode, and an electrolytic solution. The anode includes a cyclic compound and the cyclic compound includes one or more of a first cyclic compound, a second cyclic compound, and a third cyclic compound.

Abstract: Disclosed herein is a pouch-shaped secondary battery comprising a pouched-shaped battery case, an electrode assembly having a structure in which a positive electrode, a separator, and a negative electrode are stacked, the electrode assembly having an electrode tab coupled to the positive electrode or the negative electrode and an electrode lead coupled to the electrode tab, the electrode assembly being received in the pouch-shaped battery case, and an electrode-tab-cutting device located in the pouch-shaped battery case, the electrode-tab-cutting device being configured to cut the electrode tab or the electrode lead using an elastic member that is configured to be actuated when the pressure in the pouch-shaped battery case reaches or exceeds a predetermined limit pressure.

Abstract: Embodiments of secondary batteries having electrode assemblies are provided. A secondary battery can comprise an electrode assembly having a stacked series of layers, the stacked series of layers having an offset between electrode and counter-electrode layers in a unit cell member of the stacked series. A set of constraints can be provided with a primary constraint system with first and second primary growth constraints separated from each other in a longitudinal direction, and connected by at least one primary connecting member, and a secondary constraint system comprises first and second secondary growth constraints separated in a second direction and connected by members of the stacked series of layers. The primary constraint system may at least partially restrain growth of the electrode assembly in the longitudinal direction, and the secondary constraint system may at least partially restrain growth in the second direction that is orthogonal to the longitudinal direction.

Abstract: A lithium slurry battery system is provided. The system includes a lithium slurry battery and a maintenance and regeneration equipment for the battery. The battery includes: a case, a cell core accommodated in the case, and a cover butting device. The case is provided with a cover and a case body. The cover butting device is arranged on the cover and is provided with a first cover port and a second cover port. The maintenance and regeneration equipment includes: a gas storage tank for storing gas, a liquid storage tank for storing liquid; a gas recovery storage tank for storing gas recovered from the lithium slurry battery; a liquid recovery storage tank for storing liquid recovered from the lithium slurry battery; and an equipment butting device provided with a first equipment port and a second equipment port.

Abstract: The present disclosure provides energy storages devices that include electrodes that comprise an alkali metal. The present disclosure also provides related methods of using and fabricating the disclosed devices.

Abstract: A positive active material for a rechargeable lithium battery includes a lithium nickel composite oxide having an I(003)/I(104) ratio of greater than or equal to about 0.92 and less than or equal to about 1.02 in X-ray diffraction, wherein the I(003)/I(104) ratio is a ratio of a diffraction peak intensity I(003) of a (003) phase and a diffraction peak intensity I(104) of a (104) phase. The lithium nickel composite oxide includes lithium and a nickel-containing metal, and nickel is present in an amount of greater than or equal to about 80 atm % based on the total atom amount of the nickel-containing metal. A rechargeable lithium battery includes the positive active material.

Abstract: A battery pack for a handheld power tool has a battery pack housing, at least one cell holder having at least one battery cell, and a battery pack electronics unit that includes at least one flexible, in particular bendable, circuit board.

Abstract: A method for manufacturing a negative electrode for a lithium secondary battery. A negative electrode for a lithium secondary battery is manufactured while forming a composite of lithium metal and a negative electrode active material through a rolling process In the case of the lithium secondary battery to which the negative electrode containing such a composite is applied, when the battery starts to operate, the negative electrode active material is pre-lithiated, and thus charging/discharging process proceeds in the state where the lithium alloy is already formed on the negative electrode, thereby showing an effect of reducing initial irreversible phases.

Abstract: The present invention provides an electrode assembly, which includes a first electrode, an adhesive layer disposed on the first electrode and including a host layer comprising a host and a guest layer comprising a guest, a separator disposed on the adhesive layer, and a second electrode disposed on the separator, a method of manufacturing the same, and a secondary battery including the same.

Abstract: A battery pack includes an assembled battery, a battery case, a first temperature sensor and a second temperature sensor. The assembled battery has three or more battery cells electrically connected in series with each other. The battery case has the assembled battery received therein so that the assembled battery is partially exposed to outside of the battery case. The first temperature sensor is provided to detect the temperature of a most-exposed one of the three or more battery cells. The most-exposed battery cell has a maximum exposed area to the outside of the battery case among all of the three or more battery cells. The second temperature sensor is provided to detect the temperature of a least-exposed one of the three or more battery cells. The least-exposed battery cell has a minimum exposed area to the outside of the battery case among all of the three or more battery cells.