Abstract: A battery case short-circuit processing method and system are provided. The battery case short-circuit processing method includes: when a short circuit between a case of a battery and a first electrode of the battery is detected, connecting the case and a second electrode of the battery by shorting, wherein if the first electrode is a positive electrode, the second electrode is a negative electrode; and if the first electrode is a negative electrode, the second electrode is a positive electrode; disconnecting the case of the battery from the second electrode, and carrying out standing of the battery for a preset duration; after the standing duration of the battery, detecting a potential difference between the case and the first electrode.

Abstract: A battery cell comprising a composite water-responsive safety layer and/or composite water- and pH-responsive safety layer to protect against tissue damage and/or electrolysis, when the battery cell is exposed to aqueous solution or tissue, is provided. The composite water-responsive safety layer and/or composite water- and pH-responsive safety layer is adapted to change from a non-electronically conducting state to an electronically conducting state.

Abstract: A power supply device includes: a housing; a plurality of batteries stored in the housing; a plate member arranged between the plurality of batteries; an air inlet pipe arranged above the batteries and provided with an air inlet for introducing air from the outside of the housing to guide the air toward the batteries; a fastening portion configured to fasten the air inlet pipe on the plate member; and a recess structure provided around the fastening portion of the air inlet pipe and recessed toward the batteries, wherein the recess structure has a bottom portion and a sidewall portion, the bottom portion has a surface with an acute angle in a direction away from the air inlet, and the sidewall portion is connected to the bottom portion.

Abstract: A heating system includes first and second input ends, first and second battery modules, first switch and second switches, and a control unit. The first switch is connected between first terminals of the first and second battery modules. Second terminals of the first and second battery modules are connected to each other. The second switch is connected between the first input end and the first terminal of the second battery module. The second input end is connected to the first terminal of the first battery module. The first terminals of the first and second battery modules have a same polarity, and the second terminals of the first and second battery modules have a same polarity. The control unit is connected to the first and second switches, and configured to control the first and second switches to be turned on or off.

Abstract: Provided is a secondary battery, specifically, a secondary battery having excellent stability and improved output characteristic and low temperature characteristic by including a cathode active material in which at least one of metals forming the cathode active material has a concentration gradient in at least a portion of a region between a central portion and a surface portion; and a conductive material mixture in which carbon nanotube is mixed with carbon black at an appropriate ratio, the carbon black being a spherical nanoparticle.

Abstract: A secondary battery includes: an electrode assembly including a negative electrode plate, a positive electrode plate, and a separator between the negative electrode plate and the positive electrode plate; and a case accommodating the electrode assembly. The electrode assembly includes an adhesive part on an outermost region of the electrode assembly. The adhesive part is arranged to cover a boundary line between the negative electrode plate and the separator or between the positive electrode plate and the separator, and is bonded to the case.

Abstract: An apparatus for venting battery ejecta for use in an electric aircraft is presented. The apparatus includes a battery module with a plurality of electrochemical cells. The electrochemical cells of the plurality of electrochemical cells are separated by a carbon fiber barrier. Venting port of a plurality of venting ports is configured to vent an electrochemical cell of the plurality of electrochemical cells using a venting path of a plurality of venting paths, wherein the plurality of vent ports is fluidly connected to the plurality of venting paths and the plurality of venting paths are fluidly connected to at least an outlet. Venting paths direct the battery ejecta from the electrochemical cell to the outside of the electric aircraft through at least an outlet.

Abstract: In an initial state, a battery is in the following state. A laminate has a thickness T0 from a first electrode to a first electrode. A first position is spaced from the end portion of a separator on the first position side by a distance L0 in a direction perpendicular to a thickness direction of the laminate. The end portion of a separator on the first position side protrudes toward the first position from the end portion of the second electrode on the first position side, by a distance G in the direction perpendicular to the thickness direction of the laminate. The laminate is designed such that, even if the laminate swells in the thickness direction of the laminate, the thickness of the laminate from the first electrode to the first electrode is smaller than 4×{(T0/2)2+L02?(L0?G)2}1/2.

Abstract: An electricity storage device includes an electricity storage module and a cooling device disposed adjacent to the electricity storage module. The cooling device includes a first cooling layer that is adjacent to the electricity storage module and a second cooling layer that is located on the opposite side of the first cooling layer from the electricity storage module. In the first cooling layer, a plurality of first cooling channels that is disposed at intervals in an array direction and first walls that are located between the first cooling channels are formed. In the second cooling layer, a plurality of second cooling channels that is disposed at intervals in the array direction and second walls that are located between the second cooling channels are formed. At least some of the first walls are disposed so as to be offset from the second walls.

Abstract: A battery pack includes a plurality of battery cells electrically connected to each other, and a flexible line comprising a main body arranged at an edge of a cell region in which the plurality of battery cells is arranged, and a first branch portion to detect voltage and a second branch portion to detect temperature which branch from the main body toward the cell region.

Abstract: The invention provides a battery pack comprising a battery cell assembly and a heat dissipation assembly. The battery cell assembly comprises a battery cell array and a channel arranged in the battery cell array. The battery cell array is formed by arranging a plurality of cells in a certain form. The channel is enclosed by N cells, wherein N>2. The heat dissipation assembly comprises a heat-absorbing member arranged in the channel. The heat-absorbing member comprises N side walls, wherein the N side walls respectively abut against the side walls of the N battery cells. Compared with the prior art, the battery pack has the advantages that the battery pack assists the battery cell assembly in heat dissipation through the heat dissipation assembly, which can make the temperature of each area of the battery cell assembly more balanced.

Abstract: An apparatus for active battery pack cooling including a battery pack with a plurality of battery modules. The apparatus further including an active cooling system with a coolant channel, wherein the coolant channel includes a coolant fluid. The active cooling system is in thermal communication with more than one of the plurality of battery modules. The apparatus also including a plurality of passive heat transfer elements, wherein each of the plurality of passive heat transfer elements is connected to the active cooling system, extends to a battery module of the plurality of battery modules, and extends away from the coolant channel.

Abstract: Provided are a battery, comprising: a battery cell group comprising N battery cell rows arranged in a first direction, battery cells in each battery cell row being arranged in a second direction, the first direction being perpendicular to the second direction; a signal transmission assembly provided on the first face of the battery cell group and comprising a busbar component and an insulation layer, the busbar component being configured to be electrically connected to the battery cells at holes of the insulation layer; and a cooling system provided between two adjacent battery cell rows in the N battery cell rows, with a blocking member being provided at an opening, facing the first face, of a gap between the two adjacent battery cell rows to block the opening to prevent condensed liquid generated by the cooling system from reaching the busbar component.

Abstract: A secondary battery includes: a positive electrode having a positive-electrode current collector and a positive-electrode active-material layer; a negative electrode having a negative-electrode current collector and a negative-electrode active-material layer; a electrolyte; and an insulating tape covering a portion of the positive electrode. Furthermore, the positive-electrode current collector has an exposed section that the positive-electrode active-material layer is not disposed. In addition, at least a portion of the exposed section is covered with the insulating tape; the insulating tape has a substrate material layer and an adhesive layer; and the adhesive layer includes an adhesive agent and an insulating inorganic material.

Abstract: Embodiments of this application provide an end plate positioning apparatus and battery module assembling equipment. The end plate positioning apparatus includes: a pedestal; a supporting piece, disposed on the pedestal and configured to hold an end plate; at least one first positioning mechanism, including a first positioning piece and a positioning locking piece, where the first positioning piece is rotatably connected to the pedestal, the positioning locking piece includes a guide portion and a slide portion, one of the guide portion or the slide portion is disposed on the first positioning piece, and the other is disposed on the pedestal; the guide portion includes a first position and a second position, and the slide portion is able to move between the first position and the second position to drive the first positioning piece to rotate.

Abstract: A apparatus for fault detection for use in an electric aircraft is disclosed herein. The apparatus includes a battery module with a plurality of battery cells, a plate extending along the row of cells, insulation between the plate and the plurality of cells, a sensor configured to detect a potential signal, and a controller communicatively connected to the sensor. The controller is configured to receive the potential signal and determine a fault.

Abstract: One aspect of the present application provides an electrode assembly, including a first electrode plate, a second electrode plate, and a separator disposed therebetween. The first electrode plate and the second electrode plate are wound or stacked to form the electrode assembly. Wherein the electrode assembly further includes a first electrode tab disposed on the first electrode plate, and an insulating layer including a first portion disposed on the first electrode plate. And, no second electrode plate is disposed between the first portion and the first electrode tab. The present application also provides a battery. The present application intends to at least improve the safety performance of the battery.

Abstract: A battery module, includes: a battery cell stack in which a plurality of battery cells are stacked; a first heat dissipation member disposed on one side of the cell stack; a second heat dissipation member disposed on the other side of the cell stack; and a blocking member providing a plurality of insulation spaces in which the battery cells are disposed, the blocking member surrounding at least one surface of each of the battery cells; wherein the plurality of the battery cells, include a first battery cell having a surface contacting the first heat dissipation member; and a second battery cell having a surface contacting the second heat dissipation member.

Abstract: Batteries including electrochemical cells, associated components, and arrangements thereof are generally described. In some aspects, batteries with housings that undergo relatively little expansion and contraction even in cases where electrochemical cells in the battery undergo a relatively high degree of expansion and contraction during charging and discharging are provided. Batteries configured to apply relatively high magnitudes and uniform force to electrochemical cells in the battery, while in some cases having high energy densities and a relatively low pack burden, are also provided. In certain aspects, arrangements of electrochemical cells and associated components are generally described. In some aspects, thermally conductive solid articles that can be used for aligning components of the battery are described. In some aspects, thermally insulating and compressible components for battery packs are generally described.

Abstract: A system and method for implementing and manufacturing a hierarchy system for use with a TMCCC-containing electrically-conductive structure (e.g., an electrode) as well as methods for use and manufacturing of such structures and electrochemical cells including these devices. Structures and methods include a coordination complex having LxMyNzTia1Va2Cra3Mna4Fea5Coa6Nia7Cua8Zna9Caa10Mga11[R(CN)6]b (H2O)c. The method includes binding electrochemically active material to produce a hierarchical structure, the hierarchical structure having a plurality of primary crystallites having a size D1, the plurality of these primary crystallites agglomerated into a set of agglomerates each agglomerate having a size D2>D1.