4014results about "Current conducting connections" patented technology

An energy storage apparatus includes: an external terminal 51; an energy storage cell 62; a current interruption device 53 that has one end electrically connected to the external terminal 51 and the other end electrically connected to the energy storage cell 62; a discharge circuit 110 that discharges electricity from the energy storage cell 62 via a path that does not pass through the current interruption device 53; and a failure diagnosis device 150. The failure diagnosis device 150 discharges electricity from the energy storage cell 62 using the discharge circuit 110, and diagnoses a failure of the current interruption device 53 based on a change in voltage ΔV1 of the external terminal 51 before and after discharging electricity.

There is disclosed herein a terminal rivet (100), a cylindrical secondary cell (6000) comprising such a terminal rivet (100), and a method (1000) of manufacturing such a secondary cell (6000). The rivet (100) comprises a shaft (110) configured to extend axially (A) through a casing of the secondary cell to thereby electrically contact a current collecting plate of the secondary cell at a first end (110a) of the shaft (110) and a head (120) arranged at a second end (110b) of the shaft (110), configured to form an external terminal for the cylindrical secondary cell. The head (120) comprises a central region (122) and a first welding region (124) arranged around said central region (122), wherein the first welding region (124) is recessed relative to said central region (122). The first end (110a) of the shaft (110) comprises a second welding region (114), aligned along the axis (A) of the shaft with the first welding region (124), and recessed towards the first welding region (124).

The utility model provides a battery, a battery pack and an energy storage system, the battery comprises a shell, a pole core, a mylar film, an insulating porous film and a bottom support sheet, and the pole core, the mylar film, the insulating porous film and the bottom support sheet are accommodated in the shell; the bottom surface of the pole core, the mylar film, the insulating porous film and the bottom support sheet are sequentially stacked, and the insulating porous film positioned on the bottom surface comprises a plurality of through holes. The through holes of the insulating porous membrane can reduce the circulation of dust falling from the pole core between the pole core and the shell, and reduce the possibility of micro short circuit between the bottom surface of the pole core and the shell.

The invention relates to a battery module with a plurality of battery cells (2), in particular lithium-ion battery cells (200), and with a battery disconnect device (3), in particular an overcurrent protection device (30), which has power electronics (4) arranged on a top side (31) of the battery disconnect device (3), wherein at least one heat pipe (5) is thermally connected to a bottom side (32) of the battery disconnect device (3) facing away from the power electronics (4), and wherein the at least one heat pipe (5) is thermally connected to a temperature control element (6).

The invention provides a battery. The battery comprises a shell, a cover body, a battery cell, a pole assembly and an insulating glue layer, the cover body is buckled on the shell; the battery cell is located in a cavity defined by the shell and the cover body, and a first tab of the battery cell is conductively connected with the shell; a pole assembly arranged on the shell in a penetrating manner is connected with a second tab of the battery cell; the pole assembly comprises a connecting sheet and a pole; the insulating rubber layer is arranged between the connecting sheet and the side wall of the shell; a first hole is formed in the side wall of the shell, a second hole is formed in the insulating glue layer, the pole penetrates through the overlapping area of the first hole and the second hole, at least part of the connecting piece is exposed in the overlapping area of the first hole and the second hole, and the connecting piece exposed in the overlapping area is connected with the second tab through a first welding mark. The projection of the first welding mark does not coincide with the projection of the pole. Through the mode, compared with a riveting mode, the welding connection mode is low in cost, and the problem of poor air tightness or short circuit of the battery caused by riveting can be avoided.

The invention provides a battery device, an energy storage device and a power utilization device. The battery device comprises a single battery and an electric control assembly electrically connected with the single battery, the electric control assembly comprises a circuit board, a shell and a covering structure, and a connector socket is arranged on the circuit board; a containing cavity is formed in the shell, the circuit board is installed in the containing cavity, and an opening for the connector socket to stretch out is formed in the shell. The covering structure is arranged on the shell and surrounds the connector socket, and the covering structure at least partially covers a gap between the connector socket and the side wall of the opening. By arranging the covering structure, installing the covering structure on the shell, supporting the covering structure through the shell, arranging the covering structure around the connector socket and enabling the covering structure to at least partially cover the gap between the connector socket and the side wall of the opening, the connector socket can be protected according to the protection grade requirement. And the gap between the connector socket and the side wall of the opening is shielded, reduced or closed, so that the electric control assembly meets the required protection grade requirement.

The utility model relates to an electrode assembly and a battery monomer adopting the same, the electrode assembly consists of a positive plate, a negative plate and a diaphragm, the electrode assembly is provided with a positive lug and a negative lug, and the size of the negative plate is larger than that of the positive plate; the corner of the positive plate is an inner arc angle; the corner of the negative plate is an outer arc angle; the positive plates and the negative plates are stacked in sequence, and the diaphragms are arranged between the adjacent positive plates and negative plates. The corner of the negative plate is designed to be the outward arc angle, and the corner of the positive plate is designed to be the inward arc angle, so that the aluminum plastic film PP layer is effectively prevented from being scratched in the stacking and packaging processes of the electrode plates. According to the design, the stacking mode of the electrode plates is improved, the possibility of physical interference is reduced, and meanwhile, the reduction of loss in the battery assembly process is also facilitated.

The utility model discloses a battery monomer, a battery pack and a power utilization device, the battery monomer comprises a shell, an electrode assembly and an adapter, the shell is provided with a first electrode terminal and a second electrode terminal, the electrode assembly comprises a first tab and a second tab which are opposite in polarity, and the adapter is connected with the first tab. The adapter is arranged between the electrode assembly and the shell and comprises a first adapter part and a second adapter part, the first adapter part is electrically connected with the first electrode terminal and the first tab respectively, and the second adapter part is electrically connected with the second electrode terminal and the second tab respectively; and at least parts of the first switching part and the second switching part are overlapped in the axial direction of the battery monomer. Therefore, the over-current area of the first switching part and the over-current area of the second switching part are increased, the technical problem that the over-current area of the switching piece is small is solved, and the over-current capacity of the switching piece is improved.

The utility model discloses a battery and an electric device. The battery comprises a box body; the battery monomer row comprises a plurality of battery monomers arranged along a first direction, and the plurality of battery monomer rows are stacked along a second direction to form a battery monomer array and are placed in the box body; at least one strip-shaped component is arranged on the surface of one side, deviating from the bottom plate of the box body, of the single battery row in the third direction, the strip-shaped component extends in the first direction and is connected with at least one single battery in the single battery row, and the first direction is perpendicular to the second direction and the third direction in pairs. Therefore, the number of the inner beams of the battery box body can be reduced under the condition that the overall structural strength of the battery is considered, the overall volume utilization rate of the battery is improved, and the overall weight and cost of the battery are favorably controlled.

The utility model provides a battery device and electric equipment, and solves the problem that an upper box body and an electrified body of a battery monomer are easy to generate electric appliance ignition. The battery device includes: a battery cell assembly including a plurality of battery cells having electrode terminals; the box body comprises a first part and a second part, the second part covers the first part to form an accommodating cavity for accommodating the battery monomer assembly, a first surface of the second part is provided with a convex part and / or an opening part, and the first surface is a surface, facing the electrode terminal, of the second part; and an insulator between the first surface of the second portion and the battery cell assembly. The insulating part comprises a first insulating part and a second insulating part; the first insulating part is arranged opposite to the first surface of the second part, and is provided with a hollow part for exposing the convex part and / or the opening part; the second insulating part is arranged opposite to the protruding part, and / or the second insulating part is arranged opposite to the part, exposed through the hollow part, of the first surface, and the second insulating part is provided with a first through hole communicated with the opening part.

Provided are a battery pack with structural stability of battery modules and improved energy density, and a vehicle comprising the same. The battery pack according to the present disclosure includes at least one battery module and a pack case for receiving the battery module, the battery module including a battery cell stack including at least one battery cell, and a pair of end plates provided in close contact with front and rear sides of the battery cell stack on two sides of a lengthwise direction of the battery cell, and the pack case including a tray in which the battery module is mounted on an upper surface, and a top cover of which an outer periphery is coupled in contact with an outer periphery of the tray on the upper surface of the tray when the battery module is received inside, and wherein the end plates provide a mechanical support to protect the battery cell.

Provided is a modular energy storage battery, including a battery module, a fixing frame, an electrical integration module, and a panel, wherein the fixing frame is detachably arranged at one end of the battery module; the electrical integration module is detachably embedded in the fixing frame; and the panel is detachably arranged on the electrical integration module.

A wiring module is to be attached to a battery cell stacked body in which a plurality of battery cells having an electrode terminal and being elongated in a front-rear direction are arranged in a horizontal direction, and is electrically connected to the battery cells, the wiring module including: a bus bar that is connected to the electrode lead; an FPC that is connected to the bus bar and extends in the front-rear direction; and a protector that holds the bus bar and the FPC, wherein the FPC includes: a plurality of extension parts that extend in the front-rear direction; an intersection part that extends in the horizontal direction; and a bending part, the extension parts are respectively coupled to two end portions of the intersection part in the horizontal direction, one of the extension parts includes the bending part in the vicinity of the intersection part.

The utility model discloses a household energy storage battery connection structure that takes into account both high and low voltage application scenarios. The positive electrode of the battery module is connected to the positive electrode of the upper connector of the series circuit, and is connected to the positive electrodes of the upper connector of the parallel circuit and the lower connector of the parallel circuit through the first fuse A; the BMU battery control slave board is connected to the upper connector of the series circuit and the lower connector of the series circuit respectively; the PDU power box is connected to the two-way switch through one end of the cable, the battery pack is a module stacking structure, and the positive and negative electrodes of the upper connector of the parallel circuit and the positive and negative electrodes of the upper connector of the parallel circuit of another battery pack are connected in parallel with the positive and negative electrodes of the control box; the positive and negative electrodes of the control box are connected in series with the positive and negative electrodes of the battery pack. It can take into account both high and low voltage application scenarios, and is economical, efficient and practical; and the control circuit performs autonomous switching, which solves the problem that the low-voltage household energy storage battery technology cannot meet the needs of high-voltage application scenarios, and the high-voltage household energy storage battery technology cannot meet the needs of low-voltage application scenarios.

The invention discloses a battery cell module, a battery pack and a vehicle, the battery cell module comprises a battery cell and a cold plate, the battery cell comprises a pole, the pole comprises a connecting part and a convex part, the connecting part and the convex part are riveted, a containing groove is defined between the outer wall surface of the convex part and the outer wall surface of the connecting part, and the cold plate is arranged in the containing groove. And at least part of the cold plate is matched in the accommodating groove and is in heat exchange contact with the surface of the accommodating groove. The battery cell module provided by the invention has the advantages that the heat dissipation effect of the pole is good, the space utilization rate of the battery pack is high, the shape design of the accommodating groove is flexible, and the manufacturing cost of the accommodating groove is low.

An external connection bus bar to be connected to a storage element group having a plurality of storage elements and having an output electrode terminal for outputting electric power to an external circuit includes a main body portion to be connected to the output electrode terminal, an external connection terminal to be connected to an external circuit, and a circuit board connection portion to be soldered to a bus bar land provided on the circuit board. The external connection terminal is provided between the main body portion and the circuit board connection portion.

A single battery, a battery and a power utilization device, the single battery comprises: a housing assembly comprising a housing and a first pole, the first pole comprises a pole body and a first cover plate, the pole body is mounted on the housing, and the first cover plate is arranged on the pole body; the battery core assembly comprises an active substance coating part and a conductive part connected with the active substance coating part, the active substance coating part is accommodated in the shell, and the conductive part is connected with the pole body through a first welding part; the first welding part is at least partially positioned on one side, deviating from the active material coating part, of the pole body, and the first cover plate is used for shielding the first welding part. The reliability of the battery monomer can be improved.

A terminal, a connecting device, a battery assembly, and a vehicle. The terminal comprises a supporting portion, a first elastic arm, a second elastic arm, and an insertion portion; the insertion portion is configured to be inserted into a circuit board; the supporting portion is connected to the insertion portion; the supporting portion is connected to the first elastic arm and the second elastic arm, and the first elastic arm and the second elastic arm are arranged opposite to each other and extend towards the side distant from the supporting portion so as to jointly clamp a peer matching terminal matching the terminal; and the insertion portion is connected to the supporting portion, and the insertion portion, the first elastic arm and the second elastic arm are located on the same side of the supporting portion.

The utility model relates to the technical field of batteries, and provides a battery which comprises a shell structure, the pole structure is arranged on the shell structure; the battery cell is arranged in the shell structure, the battery cell comprises a battery cell main body and a pole lug, the pole lug extends out of the battery cell main body, and the pole lug is directly contacted and electrically connected with the pole column structure; the connecting piece is arranged on the side, deviating from the pole structure, of the pole lug, the connecting piece is arranged in a protruding mode towards the pole lug so that a pit can be formed in the side, deviating from the pole lug, of the connecting piece, the pole structure, the pole lug and the connecting piece are welded so that a welding mark can be formed in the pit, and therefore positioning of a welding head in the welding process can be facilitated; therefore, the welding efficiency of the pole structures, the tabs and the connecting pieces is improved, stress release can be formed through the connecting pieces, the risk of welding failure is reduced, and the safe use performance of the battery is improved.

An electrical connection for a vehicle and methods of forming an electrical connection for a vehicle. The electrical connection includes a first electrical component including a first joining area. The electrical connection also includes a conductor including a second joining area. The conductor is joined at the second joining area to the first joining area of the first electrical component. In addition, the electrical connection includes a fusion zone formed in the first electrical component in the first joining area. The conductor includes a copper-graphene multilayer composite formed on the surface of the conductor, the composite including at least one of the following composite structures: a) alternating layers of graphene and copper deposited on the substrate, b) graphene particles dispersed in a copper matrix, and c) alternating layers of graphene and copper deposited on a copper foil, wherein the copper foil is wrapped around the substrate.

The utility model relates to the technical field of batteries, and provides a battery, which comprises a battery shell, the pole is arranged on the battery shell; the battery cell is arranged in the battery shell, the battery cell comprises a battery cell main body and a pole lug, the pole lug extends out of the battery cell main body, the pole lug is directly welded and connected with the pole column so as to form a welding mark on the pole lug, and the welding mark comprises a first welding mark and a second welding mark; wherein the ratio of the area defined by the circumferential outer edge of the single first welding mark to the area defined by the circumferential outer edge of the single second welding mark is 0.02-28, and / or the first welding mark is provided with a first recess, the second welding mark is provided with a second recess, the ratio of the depth of the first recess to the depth of the second recess is 0.55-0.95, and the ratio of the depth of the first recess to the depth of the second recess is 0.55-0.95. The welding quality of the tab and the pole can be ensured, the connection stability of the tab and the pole can be ensured, and the overcurrent capability between the tab and the pole can be ensured, so that the safe use performance of the battery is ensured.

The embodiment of the utility model provides a pressing assembly and an assembling system, and the pressing assembly comprises a stop block structure which is provided with a limiting groove matched with an electrode piece; the pressing block structure is connected with the stop block structure, and at least one end of the pressing block structure is provided with a sheet pressing piece corresponding to the limiting groove; wherein the pressing block structure is located at the first position, the stop block structure is located in the ammeter battery box, the sheet pressing piece abuts against the electrode piece, the pressing block structure moves towards the ammeter battery box to the second position, and part of the electrode piece is located in the installation groove. According to the technical scheme of the utility model, the stop block structure and the pressing block structure are utilized to realize the limiting and stable installation of the electrode piece, so that the whole assembly process is more reliable.

The invention discloses a cylindrical battery, a battery pack and electric equipment, the cylindrical battery comprises a battery shell and a battery cell arranged in the battery shell, the battery shell comprises a peripheral shell part and end face shell parts, at least one end face shell part is an electric connection output end, and the end face shell parts are arranged in the peripheral shell part. The thickness of the area where the end face shell part serving as the electric connection output end is electrically connected with the battery cell is a mm, and the area of the end face shell part is s square mm; the battery cell comprises a positive plate with a positive electrode material, the powder conductivity of the positive electrode material is b Siemens per millimeter, and the value range of b / (a * s) is 7.4 e <-14 >-7.5 e <-4 >. The value range of b / (a * s) is controlled within the range of 7.4 e <-14 >-7.5 e <-4 >, it can be guaranteed that the battery has the capacity of charging and discharging in a short time, and it can also be guaranteed that when the heat production amount is increased due to large-current charging and discharging, the safety risk when the battery is used is reduced.

The utility model discloses a battery and electric equipment. The battery comprises a battery monomer, a temperature sampling piece, a circuit board and an electric connecting piece, wherein the temperature sampling piece is used for collecting the temperature of the battery monomer; wherein the battery further comprises an electric connecting piece, the electric connecting piece is used for electrically connecting the temperature sampling piece and the circuit board, and the temperature sampling piece and the circuit board are respectively welded with the electric connecting piece. And the production efficiency of the battery can be improved.

A connector module according to an embodiment of the present invention includes a first connector including a first connector housing that is recessed therein to define a first recessed portion and a first conductive part coupled to the first connector housing, and a second connector coupled to the first connector, wherein the second connector may include a second connector housing of which at least a portion is inserted into and coupled to the first recessed portion, a second conductive part inserted into and coupled to the second connector housing so as to be electrically connected to the first conductive part, and a coupling housing configured to pass through the second connector housing and the second conductive part so as to couple the second connector housing to the second conductive part.

The present invention provides a connection component and a conductive terminal thereof, the connection component is used to electrically connect between a battery pack and a battery management system, and includes a circuit board, a conductive terminal, a wire and a connector, the conductive terminal is connected to one end of the circuit board to electrically connect to a plurality of battery cells in a battery pack respectively, the wire is connected to the other end of the circuit board, and is electrically connected to the conductive terminal through the circuit board, each conductive terminal includes a fixed portion, a contact portion electrically connected to the corresponding battery cell, and a connecting portion connecting the fixed portion to the contact portion, the fixed portion has a base electrically connected to the circuit board and a fixed foot bent and extended from the base, the connector is connected to the other end of the plurality of wires to connect to the battery management system, and the connecting portion is arranged in a curved shape to be elastically connected between the base and the contact portion. The connection component and the conductive terminal of the present invention can stably collect signals.

Disclosed is a secondary battery, which has a reinforced strength and can simplify the manufacturing process thereof. For example, one embodiment provides a secondary battery which comprises: an electrode assembly including a first electrode plate and a second electrode plate, wherein one of the first electrode plate and the second electrode plate includes a plurality of first tabs formed to protrude in one direction; a first current collection tab coupled to the first tabs; a case housing the electrode assembly; and a cap assembly coupled to the upper part of the case, wherein the first current collection tab is coupled to one of the cap assembly and the bottom surface of the case.

A battery cell includes an electrode assembly including a cell body and an electrode tab provided to at least one side of the cell body, a cell case configured to accommodate the electrode assembly therein, an electrode lead coupled to the electrode tab and extending from the cell case, and a tab protection module accommodated in the cell case and configured to cover at least a portion of the electrode tab, the tab protection module including a lead positioning guide and a corresponding positioning guide insert portion adapted to receive the positioning guide insert portion, wherein the positioning guide insert portion is configured to couple to the electrode lead to guide a position of the electrode lead relative to the cell case.

A battery includes a box, battery groups arranged along a first direction, a busbar, and two output members. Each battery group includes an even number of battery cells arranged along a second direction perpendicular to the first direction, and each including first and second side walls connected to each other. The first side wall having the largest area among all the outer walls of the battery cell. The second side walls of two adjacent battery cells are arranged opposite to each other along the second direction. The busbar is used to electrically connect two adjacent battery cells. The two output members are arranged on the same side of the first direction. The outermost battery group along the first direction is provided with two output terminals distributed along the second direction and electrically connected respectively to the two output terminals to form a power supply path together with the busbar.

A battery cell, a battery, and an electrical device are disclosed. The battery cell comprises: a casing assembly, comprising a casing and a first pole, the first pole comprising a pole body and a first cover plate, the pole body being mounted in the casing, and the first cover plate being arranged on the pole body; and a cell assembly, comprising an active material coating portion and a conductive portion connected to the active material coating portion, the active material coating portion being accommodated in the casing, and the conductive portion being connected to the pole body by means of a first welding portion. The first welding portion is at least partially located on the side of the pole body away from the active material coating portion, and the first cover plate is used for shielding the first welding portion.