Abstract: A structurally supportive battery busbar configured to enable distribution of electrical energy amongst a plurality of battery cells and to provide structural rigidity to the plurality of battery cells, the structurally supportive busbar including one or more bands configured to band the plurality of battery cells together under a tensile force to form a battery module, and one or more structural reinforcement beams configured to traverse at least partially along a length or width of the battery module, the at least one of the bands or one or more structural reinforcement beams include an electrically conductive portion configured to couple the plurality of battery cells together for electrical distribution throughout the battery module.

Abstract: The present application relates to a secondary battery, a battery module and an apparatus. The secondary battery includes an electrode assembly and a casing. The electrode assembly includes a main body portion and a tab portion, the tab portion extending out from the main body portion along an end of the main body portion and including an outer peripheral surface. The casing includes an accommodating hole for accommodating the electrode assembly. The casing includes a limiting protrusion. The outer peripheral surface extends around an axis of the accommodating hole. The limiting protrusion protrudes toward the tab portion and presses against the outer peripheral surface of the tab portion. The limiting protrusion is adapted to limit a position of the tab portion. The secondary battery provided by the present application can reduce the possibility of fatigue fracture of the adapting piece.

Abstract: The present disclosure provides a lower plastic part, an end cover assembly, an energy storage device, and electrical equipment. The lower plastic part has a first surface and a second surface opposite to the first surface. The lower plastic part defines a groove, a stream guidance hole, and a concave portion. The groove and the concave portion are located at opposite ends of the lower plastic part in its length direction. The stream guidance hole penetrates through a bottom wall of the groove. A hole diameter of the stream guidance hole is progressively smaller. The lower plastic part further comprises a plurality of first ejector pin parts, a plurality of second ejector pin parts, and a plurality of third ejector pin parts which are symmetrical with respect to a center line of the lower plastic part in a width direction.

Abstract: An energy storage device and an electricity-consumption device. The energy storage device includes an insulation film and an electrode assembly. The insulation film includes a bottom film, a first side film, and a second side film. The bottom film includes a first side, a second side, and a third side. In a length direction of the bottom film, the first side film at least partially exceeds the bottom film, and the second side film at least partially exceeds the bottom film. When the electrode assembly is wrapped by the insulation film, the first side film is folded relative to the bottom film along the first side, the second side film is folded relative to the bottom film along the second side, a second wrapping section is folded relative to a first wrapping section, and a fourth wrapping section is folded relative to a third wrapping section.

Abstract: A battery can include an electrode assembly having a first electrode, a second electrode and a separator. The first electrode can include a first active material region coated with an active material layer along a winding direction and a first uncoated region not coated with the active material layer, and at least part of the first uncoated region used as an electrode tab. The battery can further include a first current collector coupled to at least part of the first uncoated region on the electrode assembly, a battery housing to accommodate the electrode assembly and the first current collector, and an insulator between an inner surface of the battery housing facing the first uncoated region or the first current collector and the first uncoated region or the first current collector to block the electrical connection between the first uncoated region and the battery housing.

Abstract: The present disclosure relates to a cap assembly and a secondary battery. The cap assembly includes a cap plate provided with an electrode lead-out hole; an electrode terminal, covering the electrode lead-out hole and including a main body, wherein the main body is provided with a recess on a side wall; an isolating member including a receiving portion, wherein the main body is received in the receiving portion; and a protrusion, connected to an inner wall of the isolating member and extending towards an axis of the electrode lead-out hole, wherein the protrusion is received in the recess so as to prevent the main body from rotating relative to the isolating member. The cap assembly according to the embodiments of the present application can improve an overcurrent capacity and stability of the electrode terminal.

Abstract: A battery pack including a battery cell, the battery cell including a cell tab extending from a terrace part thereof; and a protection circuit module spaced apart from the battery cell and having a module tab to which the cell tab is welded, wherein the cell tab includes a bending part that is bent a predetermined number of times.

Abstract: A cell connector system is for connecting with at least one conductor tab of at least one single cell that is insertable into an electrical storage module having at least one frame device. The cell connector system includes a base contact profile with at least two end surfaces, a support surface, a transition surface, two opposing contact surfaces, and at least one lamella contact. The support surface can be placed on at least one frame device. At least one contact surface has a receiving recess with at least two retaining protrusions that receive the lamella contact. The lamella contact can establish a separable electrical connection to the conductor tab of the electrical single cell.

Abstract: The present invention relates to a negative electrode active material including silicon-based oxide particles and a metal distributed on a surface, inside, or on the surface of and the inside the silicon-based oxide particles, wherein compressive fracture strength measured at a pressure of 100 mN is 170 MPa to 380 MPa, and the silicon-based oxide particles contain Si crystal grains having a crystal grain size of 3 nm to 20 nm.

Abstract: The present disclosure provides an end cover assembly, an energy storage device, and an electric apparatus. The end cover assembly includes: a cover plate having a first through hole; a pole including a pole body, the pole body passing through the first through hole and provided with a first thread at an outer peripheral surface of the pole body; an insulator provided on the cover plate and having a second through hole, the second through hole having a hole wall provided with a second thread, the pole body passing through the second through hole, and the first thread being connected to the second thread; an anti-loosening structure including a first anti-loosening portion and a second anti-loosening portion that are engaged with and connected to each other to prevent the insulator from loosening.

Abstract: A method produces a cover assembly for a cell housing of a prismatic battery cell. In the method, a cell terminal consisting of three portions is arranged on a cover plate in such a way that one portion is arranged in a through-opening of the cover plate, another portion and the cover plate overlap to form a first interspace, and a further portion and the cover plate overlap to form a second interspace. A sealing element is provided in one of the interspaces and is preloaded by compressing the interspace. The cell terminal is connected to the cover plate by introducing a plastic into the interspace without the sealing element.

Abstract: The present application provides a secondary battery and a battery module, battery pack and electrical device containing the same. The secondary battery comprises a positive electrode plate and an non-aqueous electrolytic solution, wherein the positive electrode plate comprises a positive electrode active material with a core-shell structure, said positive electrode active material comprising an core and a shell covering said core, said core has a chemical formula of Li1+xMn1-yAyP1-zRzO4; said shell comprises a first cladding layer covering said core, a second cladding layer covering said first cladding layer and a third cladding layer covering said second cladding layer, said non-aqueous electrolytic solution comprises a first additive, said first additive comprises one or more of compounds as shown by Formula 1, Formula 2 and Formula 3.

Abstract: A binder composition for a non-aqueous secondary battery electrode contains a polymer A. The polymer A includes a nitrile group-containing monomer unit in a proportion of not less than 80.0 mass % and not more than 99.9 mass %, has a weight-average molecular weight (Mw) of not less than 700,000 and not more than 2,000,000, and has a molecular weight distribution (Mw/Mn) of less than 3.0.

Abstract: A battery according to the present disclosure includes: a collector; an electrode layer in contact with the collector; a solid electrolyte layer containing a solid electrolyte; and a sealing layer containing a sealing material, and the collector has an annealing softening temperature lower than a glass transition temperature of the sealing material.

Abstract: An electric energy storage device, comprising N energy units with a same rated voltage and provided with a socket, wherein the N energy units are equally divided into M energy modules. Each energy module comprises K energy units, wherein M?2 and K?2, and can be switched between parallel and series connection states. The disclosure also provides an electric tool system, wherein the electric tools with different rated voltages have different plugs, and the electric energy storage device outputs different voltages after connecting with the socket. The electric energy storage device with multiple output voltages can be suitable for electric energy storage devices with different rated voltages, and reduces the cost.

Abstract: The present invention provides an electrode assembly in which a negative electrode coated with a negative electrode active material on a surface of a negative electrode collector, a separator, and a positive electrode coated with a positive electrode active material on a surface of a positive electrode collector are repeatedly laminated, the electrode assembly comprising: monocells in which the positive electrode, the separator, the negative electrode, and the separator are laminated, wherein at least two or more monocells are laminated, wherein, in any one of the monocells, an expansion part extending lengthily to one side is formed on the separators, and the expansion part of the separator surrounds the monocells laminated to be disposed at the outermost layers to fix the laminated monocells.

Abstract: A solid-state device includes a substrate with a stack of constituent thin-film layers that define an arrangement of electrodes and intervening layers. The constituent layers can conform to or follow a non-planar surface of the substrate, thereby providing a 3-D non-planar geometry to the stack. Fabrication employs a common shadow mask moved between lateral positions offset from each other to sequentially form at least some of the layers in the stack, whereby layers with a similar function (e.g., anode, cathode, etc.) can be electrically connected together at respective edge regions. Wiring layers can be coupled to the edge regions for making electrical connection to the respective subset of layers, thereby simplifying the fabrication process. By appropriate selection and deposition of the constituent layers, the multi-layer device can be configured as an energy storage device, an electro-optic device, a sensing device, or any other solid-state device.

Abstract: Provided are processes to form microporous silicon useful as an active material in an electrode of an electrochemical cell the processes including subjecting a mixture of silicon oxide and a metal reducing agent, optionally aluminum, to mechanical milling to form mechanically activated silicon oxide/aluminum, thermally treating the silicon oxide/aluminum to reduce the silicon oxide and form Si/Al2O3, and removing at least a portion of the alumina from the Si to form a microporous silicon. The resulting electrochemically active microporous silicon is also provided with residual alumina present at 15% by weight or less that demonstrates excellent cycle life and safety.

Abstract: A system for supplying power to at least one power distribution and data hub using a portable battery pack including a battery enclosed by a wearable and replaceable pouch or skin is disclosed, wherein the pouch or skin can be provided in different colors and/or patterns. Further, the pouch or skin can be MOLLE-compatible. The battery comprises a battery element housed between a battery cover and a back plate, wherein the battery element, battery cover, and back plate have a slight curvature or contour. Further, the battery comprises flexible leads.

Abstract: The present disclosure relates a battery, including an electrode assembly, a first tab, a second tab, a cap plate assembly, a first electrode terminal, a second electrode terminal and a shaping plate. The electrode assembly includes a first electrode plate, a second electrode plate and a separator arranged between the first electrode plate and the second electrode plate; each of the first electrode terminal and the second electrode terminal is arranged on the cap plate assembly; the first electrode terminal is connected to the first electrode plate through the first tab; the second electrode terminal is connected to the second electrode plate through the second tab; the shaping plate is arranged between the cap plate assembly and the electrode assembly, and each of the first tab and the second tab is bent around the shaping plate; the shaping plate is fixed and thermally fused to the cap plate assembly.