An apparatus includes an interconnect assembly configured to receive and retain multiple batteries. The interconnect assembly includes a retainer configured to receive portions of the batteries and a conductive interconnect layer carried by the retainer. The conductive interconnect layer includes a first layer of conductive material having a first thickness and a second layer of conductive material having a second thickness less than the first thickness. The first and second layers of conductive material are attached together to form the conductive interconnect layer. The second layer of conductive material includes multiple interconnects configured to be coupled to cathodes and anodes of the batteries.

A battery module assembly includes a plurality of cells, a plurality of cartridges including a first cartridge (a cartridge A) and a second cartridge (a cartridge B) alternately stacked with a corresponding cell therebetween, and a caulking pipe inserted into a through hole provided in a corner of each of the stacked plurality of cartridges, for assembling the plurality of cartridges. A bus bar among main elements configuring a voltage sensing assembly is disposed in a frame configuring a short side among four frames configuring the first cartridge, and a sensing wire among the main elements configuring the voltage sensing assembly is disposed in two frames configuring a short side and one frame configuring a long side among four frames configuring the second cartridge.

The present disclosure provides a cold-rolled steel sheet having excellent high-temperature properties and room-temperature workability, including, by weight: carbon (C): 0.0005 to 0.003%, manganese (Mn): 0.20 to 0.50%, aluminum (Al): 0.01 to 0.10%, phosphorus (P): 0.003 to 0.020%, nitrogen (N): 0.0005 to 0.004%, sulfur (S): 0.015% or less, niobium (Nb): 0.005 to 0.040%, chromium (Cr): 0.10 to 0.50%, tungsten (W): 0.02 to 0.07%, and a balance of iron (Fe) and other inevitable impurities, wherein C, Nb, and W satisfy the following relationship 1, a microstructure comprises 95 area % or more of polygonal ferrite and 5 area % or less of acicular ferrite, and the cold-rolled steel sheet comprises (Nb,W)C-based precipitates having an average size of 0.005 to 0.10 μm and a method for manufacturing the same:
0.00025≤(2×Nb/93)×(W/184)/(C/12)≤0.0015  [Relationship 1]
where, C, Nb, and W are in weight %.

An electronic device and a method performed in an electronic device for managing the power limit of a battery of a vehicle. The method including obtaining a first State of Health value of the battery at a first time, obtaining a second State of Health value of the battery at a second time, determining a rate of change of State of Health value of the battery, determining a power value by calculating a function that is dependent on the rate of change of State of Health of the battery and adjusting the power limit of the battery to the determined power value for managing the life time of the battery.

The invention relates to a method for producing an electrochemical cell comprising at least one porous electrode (2′), the method comprising at least the following method steps: (a) providing an electrode composition in the form of a homogeneous mixture comprising (i) at least one particulate active material (3); (ii) at least one particulate binder (5); (iii) at least one particulate pore-forming agent (4); and (iv) optionally at least one conducting additive (6); (b) forming a mouldable mass from the electrode composition; (c) applying the electrode composition to at least one surface of a substrate (1) to obtain a compact electrode (2); (d) producing an electrochemical cell comprising at least one compact electrode (2) which comprises the electrode composition according to method step (a); and (e) heating the at least one compact electrode (2) to liquefy the at least one particulate pore-forming agent (4); and/or (f) bringing the compact electrode (2) into contact with at least one liquid electrolyte composition or at least one liquid constituent of an electrolyte composition for an electrochemical cell which is capable of at least partially dissolving the at least one particulate pore-forming agent (4) to obtain a porous electrode (2), wherein method steps (a), (b), (c), (d) and (e) are carried out substantially without solvents.

Articles and methods including layers for protection of electrodes in electrochemical cells are provided. As described herein, a layer, such as a protective layer for an electrode, may comprise a plurality of particles (e.g., crystalline inorganic particles, amorphous inorganic particles). In some aspects, at least a portion of the plurality of particles (e.g., inorganic particles) are fused to one another. For instance, in some aspects, the layer may be formed by aerosol deposition or another suitable process that involves subjecting the particles to a relatively high velocity such that fusion of particles occurs during deposition. In some cases, the protective layer may be porous.

An information calculation system acquires a battery load history of a secondary battery that has been used. The information calculation system calculates first degradation states of a plurality of battery constituent elements of the secondary battery, based on the battery load history acquired and a plurality of degradation factors related to each of the battery constituent elements. The information calculation system acquires estimated load information on a load that is estimated to act on the secondary battery when the secondary battery is used in a future application. The information calculation system calculates future second degradation states of the plurality of battery constituent elements of the secondary battery when the secondary battery is used in the future application, based on the first degradation states related to the battery constituent elements calculated, the estimated load information acquired, and the plurality of degradation factors related to the battery constituent elements.

A bicycle battery system includes a battery tray that mounts within a cavity formed by an opening in a bicycle tube. The battery tray includes a latch mechanism, a first base portion that mounts to the latch mechanism, and a second base portion that mounts to the first base portion. The first base portion includes a cup that is sized to mate with an interior of the bicycle tube. The system also includes a battery that is sized to fit within the battery tray. A first end of the battery includes a protrusion that is sized to fit within the cup of the first base portion, and a second end of the battery includes a secondary latch to secure the second end to the battery tray. The system further includes a battery cover plate mounted to the battery.

A method comprises determining a first pressure increase in an electrochemical energy storage unit based on a first repetition rate, detecting that the first pressure increase has exceeded a first threshold value, determining a second pressure increase in the energy storage unit based on a second repetition rate, the second repetition rate being greater than the first repetition rate, detecting that the second pressure increase exceeds a second threshold value, and outputting a signal to a control unit based on detecting that the second pressure increase has exceeded the second threshold value.

This disclosure details exemplary battery pack designs for use in electrified vehicles. Exemplary battery packs may include a battery array that includes one or more interconnected array frames. A split thermal fin may be held within the one or more array frames. The proposed designs of the split thermal fin enable a reduction of the amount of thermal interface material required between the thermal fin and a support structure (e.g., a heat exchanger plate) of the battery pack.