Abstract: Provided are a method and an apparatus for identifying a parameter of a battery model, an electronic device, and a storage medium. The method includes: obtaining to-be-identified parameters from an electrochemical model to form individuals; calculating a first fitness for each individual; determining a cell parameter if any individual has a first fitness less than a fitness threshold; sorting the individuals in an ascending order based on magnitudes of the first fitness, and partition the individuals into two parts in a case that each individual has a first fitness greater than or equal to the fitness threshold; updating to sub-individuals obtained from partition; calculating a second fitness for each individual, compare the second fitness with the first fitness, and retain an individual having a smaller fitness; and terminates if a fitness of the retained individual is less than the fitness threshold.

Abstract: An energy storage device and a temperature regulating structure thereof are provided in the present application. The temperature regulating structure of the energy storage device includes a housing and a temperature regulating plate fixedly connected to the housing, wherein the housing and the temperature regulating plate form a first heat insulation cavity, and/or the housing is provided with a second heat insulation cavity. In the temperature regulating structure of the energy storage device, the first heat insulation cavity is formed by the housing and the temperature regulating plate and/or the housing is provided with the second heat insulation cavity.

Abstract: An energy storage device for safely storing and delivering energy includes a charge storage assembly that includes an array of high-power energy storage devices, a protective device for controlling a flow of the energy, a current limiting charging device to limit a current flowing into the charge storage assembly, a passive balancing circuit to balance the energy of the charge storage assembly and a software and hardware processing system to control one or more of the protective device, the current limiting charging device, and the passive balancing circuit.

Abstract: An energy storage device and a power consuming apparatus are provided in the disclosure. In the energy storage device, a top cover defines an opening, a response member covers the opening, a lower plastic member includes a grid structure, the grid structure defines vent holes, and the vent holes are in communication with the opening. A current collecting member includes a first connecting portion and a second connecting portion. The first connecting portion is connected to a terminal, and the second connecting portion is connected to an electrode assembly. Welding protrusions are provided on a surface of the second connecting portion, and the second connecting portion at least partially shelters the grid structure. The grid structure defines a dented avoidance space, and the welding protrusions are accommodated in the avoidance space.

Abstract: An outdoor cabinet is provided. The outdoor cabinet includes a cabinet body, a cabinet door, a flange structure and a sealing structure. The cabinet door is connected to the cabinet body. The flange structure is arranged on the cabinet body. The sealing structure includes a groove, and the flange structure is clamped in the groove. A flange drainage gap is formed at the flange structure, and an auxiliary drainage gap is formed at the sealing structure. The flange drainage gap and the auxiliary drainage gap are arranged in correspondence. Water entering the groove can be discharged after passing through the flange drainage gap and the auxiliary drainage gap.

Abstract: An end cover assembly, an energy-storage apparatus, and an electricity-consumption device are provided. A main body plate of an insulation holder includes a first surface and a second surface. A first wall plate and a second wall plate of the holder are both provided on the first surface and opposite to each other in the length direction of the main body plate. The first wall plate bends and extends away from the second wall plate in the thickness direction of the main body plate. The second wall plate bends and extends away from the first wall plate in the thickness direction of the main body plate. The main body plate, the first wall plate, and the second wall plate jointly define a receiving space to receive the explosion-proof-valve holder, and are all spaced apart from the explosion-proof-valve holder to form an airflow channel.

Abstract: An energy-storage apparatus and an electricity-consumption device are disclosed. The energy-storage apparatus includes a housing, an electrode assembly, an end cover assembly, and a first connector. The end cover assembly includes a top cover and a lower plastic assembly. The lower plastic assembly is disposed between the top cover and the electrode assembly. The top cover includes a first stimulus-response member. The lower plastic assembly includes a first-lower-plastic-member body having a first surface and a second surface, a first recess recessed from the second surface to the first surface, and a first vent hole defined in a recess bottom-wall of the first recess and penetrates through the recess bottom-wall and the first surface. A part of the first recess is blocked by the first connector, and the rest of the first recess exposed beyond the first connector forms a vent passage in communication with the first vent hole.

Abstract: An end cover assembly, an energy storage apparatus, and an electricity-consumption device are provided in the disclosure to improve a production yield. The end cover assembly includes a top cover, an upper plastic member, a conductive block, a terminal post, and a sealing member. A mounting hole of the top cover extends through the top cover in a thickness direction of the top cover. The upper plastic member is mounted to the top cover. A through hole of the upper plastic member extends through the upper plastic member in the thickness direction of the upper plastic member and is in communication with the mounting hole. The conductive block is mounted to the upper plastic member. A fitting hole of the conductive block extends through the conductive block in a thickness direction of the conductive block and is in communication with the through hole.

Abstract: An end cover assembly, an energy storage apparatus, and an electricity-consumption device are provided in the disclosure. The end cover assembly includes a top cover, a lower plastic member, a sealing member, and a terminal post. The lower plastic member is fixed to the top cover and defines a hollow hole and a first flow passage. The hollow hole extends through the lower plastic member in a direction from the lower plastic member to the top cover. One end of the first flow passage is in communication with a side wall of the hollow hole, and another end of the first flow passage is in communication with an outside. The sealing member includes a first sealing portion disposed in the hollow hole. The terminal post has a flange portion.

Abstract: A method for establishing an electrochemical model for an ion battery is provided. The ion battery includes a negative electrode region, a positive electrode region, and a diaphragm arranged between the negative electrode region and the positive electrode region. The negative electrode region includes a negative electrode current collector, a negative electrode liquid phase and a negative electrode solid phase. The positive electrode region includes a positive electrode current collector, a positive electrode liquid phase and a positive electrode solid phase.

Abstract: The present disclosure relates to an energy storage device and an electrical equipment. The energy storage device includes a housing, a jellyroll, a connecting sheet, and a top cover. The jellyroll is provided with a tab, and the connecting sheet includes a side wing part. The energy storage device includes a welding structure composed of the tab and the side wing part. A tab sheet farthest from the side wing part in the tab sheets included by the tab is a first tab sheet, the welding structure forms a welding area on the first tab sheet. An area of the welding area is S1, an area of the side wing part is S2, and a projection area of the first tab sheet on a plane where the side wing part is located is S3, wherein 0.4?S1/S2?0.8, 0.14?S1/S3?0.28.

Abstract: Disclosed are an end cover assembly, an energy-storage device, and an electricity-consumption device. The end cover assembly includes an isolation member. A main body of the isolation member has a first surface and a second surface opposite the first surface, and the isolation member defines a through hole penetrating through both the first surface and the second surface. Each first protrusion portion on the first surface and each second protrusion portion on the second surface are spaced apart from the through hole. A conductive block defines multiple first blind holes and an assembly hole, and each first blind hole fits one first protrusion portion. A top cover defines multiple second blind holes and a mounting hole, and each second blind hole fits one second protrusion portion. A post body of the terminal post passes through the mounting hole, the through hole, and the assembly hole sequentially.

Abstract: An energy storage apparatus and an electric device are provided in the disclosure. The energy storage apparatus includes an upper cover, a deformation member, a lower plastic member, a terminal post, a connector, and a tab. The lower plastic member is provided with a grid structure at one side of the lower plastic member where the through hole is defined at the fourth surface, and the grid structure separates the through hole into multiple sub-holes. The connector extends from the first connection portion that is connected to the terminal post to the second connection portion that is disposed at one side of the grid structure facing away from the deformation member, and an orthographic projection of the connector on the fourth surface of the lower plastic member covers at least part of the multiple sub-holes.

Abstract: An end cover assembly, an energy-storage apparatus, and an electricity-consumption device are provided. The end cover assembly is for an energy-storage apparatus and includes a top cover, a sealing cap, and an annular welding portion. The top cover has a first surface and further defines a liquid-injection hole extending through the first surface. The first surface includes a first sub-surface and a second sub-surface connected to the first sub-surface, the first sub-surface is around the liquid-injection hole, the second sub-surface is around a periphery of the first sub-surface, and roughness of the first sub-surface is greater than roughness of the second sub-surface. The sealing cap seals the liquid-injection hole and is connected to the top cover. The annular welding portion is located at a junction between the sealing cap and the top cover. The top cover is further provided with a first welding mark and a second welding mark.

Abstract: The present disclosure provides an energy-storage device and an electricity-consumption device. The energy-storage device includes a housing, an electrode assembly, an end cap assembly, and a lower plastic assembly. The housing has an opening and is provided with an accommodating cavity in communication with the opening, and the accommodating cavity is configured to store fluid. The lower plastic assembly includes a cover plate and two distribution members connected to the cover plate. Each distribution member is provided with a reflux tank, and the reflux tank is configured to collect fluid flowing out from the accommodating cavity and distribute fluid into the accommodating cavity. Each reflux tank defines a first distribution channel and a second distribution channel in a length direction of the lower plastic assembly. Fluid flow capacity of the first distribution channel is greater than fluid flow capacity of the second distribution channel.

Abstract: An end cover assembly, an energy storage apparatus, and an electricity-consumption device are provided in the disclosure. The end cover assembly includes a top cover, a lower plastic member, a sealing member, and a terminal post. The lower plastic member is fixed to the top cover and defines a hollow hole and a first flow passage. The hollow hole extends through the lower plastic member in a direction from the lower plastic member to the top cover. One end of the first flow passage is in communication with a side wall of the hollow hole, and another end of the first flow passage is in communication with an outside. The sealing member includes a first sealing portion disposed in the hollow hole. The terminal post has a flange portion.

Abstract: A battery temperature monitoring point identification and abnormality detection method is provided according to the present disclosure. The method is applied to a battery module, and a temperature sensor inside the battery module is determined as a temperature monitoring point of a battery. The method includes: establishing a second-order RC equivalent circuit model of the battery in the battery module; performing parameter identification on the second-order RC equivalent circuit model to obtain an optimal parameter; obtaining distances between multiple temperature monitoring points in the battery module and the battery by using the obtained optimal parameter; and determining effectiveness of the temperature monitoring points based on the obtained distances between the temperature monitoring points and the battery.

Abstract: Disclosed are an end cover assembly, an energy-storage device, and an electricity-consumption device. The end cover assembly includes an isolation member. A main body of the isolation member has a first surface and a second surface opposite the first surface, and the isolation member defines a through hole penetrating through both the first surface and the second surface. Each first protrusion portion on the first surface and each second protrusion portion on the second surface are spaced apart from the through hole. A conductive block defines multiple first blind holes and an assembly hole, and each first blind hole fits one first protrusion portion. A top cover defines multiple second blind holes and a mounting hole, and each second blind hole fits one second protrusion portion. A post body of the terminal post passes through the mounting hole, the through hole, and the assembly hole sequentially.

Abstract: A top patch, an energy-storage apparatus, and an electricity-consumption device are provided. The top patch defines a first pole through-hole and a first hole spaced apart from the first pole through-hole in a length direction of the top patch, the first hole includes two side walls arranged opposite to each other in a width direction of the top patch, each of the two side walls is provided with an extension bump, the first hole at one side of the extension bump forms a first explosion-proof valve through-hole, the first hole at the other side of the extension bump forms a second pole through-hole, and an angle at which each of the hole wall of the first pole through-hole, the hole wall of the second pole through-hole, and the hole wall of the first explosion-proof valve through-hole is inclined relative to a connecting surface ranges from 25 degrees to 85 degrees.