Abstract: An ASIC chip for performing active battery equalization is provided. The ASIC chip for performing active battery equalization includes: a power conversion module, an equalization switch matrix circuit module comprising a power MOS transistor, a switch control module, a temperature protection module, and a communication interface module. By connecting and controlling the above modules, the equalization switch matrix circuit module performs equalization on a battery in the battery pack. That is, the use of the integrated ASIC chip accelerates and facilitates the BMS solution manufacturers adding the active equalization function, and facilitates the BMS Battery management system effectively improving the service performance and life of lithium batteries.

Abstract: A method for calculating a terminal voltage of a lithium battery based on an electrochemical model, an apparatus, and a medium are provided. The method includes: constructing the electrochemical model of the lithium battery, and dividing the lithium-ion battery into three domains comprising an anode domain, a separator domain, and a cathode domain; numerically simulating the electrochemical model in the three domains respectively using the Chebyshev spectral method, and respectively obtaining distribution data of a liquid-phase potential, overpotential, and open-circuit voltage of the anode and the cathode; obtaining solid-phase potential distribution data of the anode and the cathode, based on discrete data of the liquid-phase potential, overpotential, and open-circuit voltage of the anode and the cathode; and obtaining the terminal voltage of the lithium battery based on the solid-phase potential distribution data of the anode and cathode.

Abstract: A method and an apparatus for monitoring energy storage cell abnormality, an electronic device, and a medium are provided. The method includes: obtaining valid state data of a first cell in a battery module at a preset time; obtaining a discrete statistical state characteristic of the first cell based on the valid state data of the first cell; calculating distances between the discrete statistical state characteristic of the first cell and discrete statistical state characteristics of each remaining cells in the battery module separately, averaging the set of distances, to obtain a distance characteristic associated with the first cell; and determining whether the first cell is abnormal based on the distance characteristic of the first cell. Consistency monitoring of each cell in the battery module is implemented based on the state data of each cell, so that an early warning indicative of a possible fault can be issued.

Abstract: An energy storage device is provided in the disclosure. The energy storage device includes a case, multiple battery modules, at least one cooling assembly, and at least one heat insulation support. The multiple battery modules are accommodated in the case. The at least one cooling assembly is arranged between the multiple battery modules. The at least one heat insulation support is fixedly connected to the case. The at least one heat insulation support each defines a fixing groove configured to fix one of the at least one cooling assembly.

Abstract: A cooling box and a battery pack are provided. The cooling box includes a chassis and a cooling assembly. The chassis is provided with a first side wall, a bottom wall and a lower accommodation cavity surrounded by the first side wall and the bottom wall. The cooling assembly is arranged in the lower accommodation cavity, and includes a lower flow-channel plate and an upper flow-channel plate. The upper flow-channel plate is sealingly connected to the chassis, and a sealed accommodation space is formed between the upper flow-channel plate and the chassis. The lower flow-channel plate is arranged in the accommodation space, and a flow-channel space is formed between the upper flow-channel plate and the lower flow-channel plate.

Abstract: A method, system, device, and medium for recharging a battery module are disclosed. The method comprises: identifying initial rechargeable batteries within the battery module; selecting from the initial rechargeable batteries, a reference rechargeable battery that satisfies preset charging and discharging conditions, and designating the remaining batteries of the initial rechargeable batteries as target rechargeable batteries; and determining a target capacity for each of the target rechargeable batteries based on the historical charging and discharging parameters of the reference rechargeable battery and each of the target rechargeable batteries; establishing a recharge termination condition for each of the target rechargeable batteries based on the target capacity; and recharging each of the target rechargeable batteries in accordance with its respective recharge termination condition. Considering the unique conditions of each battery, settings for recharge are individualized.

Abstract: Numerous embodiments of a hybrid memory system are disclosed. The hybrid memory can store weight data in an array in analog form when used in an analog neural memory system or in digital form when used in a digital neural memory system. Input circuitry and output circuitry are capable of supporting both forms of weight data.

Abstract: The present disclosure provides an external cladding film, an energy storage device and electrical equipment. The energy storage device includes an external cladding film and a housing. The external cladding film includes two side film sections each having a first cut groove and a second cut groove. The first cut groove and the second cut groove both penetrate through the side film section. A bottom surface of the first cut groove and a bottom surface of the second cut groove are both spaced from inner edges of the side film sections. Each side film section has a first oblique crease and a second oblique crease. A first free end of the first oblique crease intersects with a side surface of the first cut groove. A distance between the first free end and the bottom surface of the first cut groove is greater than 0.

Abstract: Method for analyzing and predicting state of health of a lithium battery includes: collecting battery data within a predetermined time interval, where the battery data comprises at least battery operating time, current, and voltage; determining a target area based on the battery data; establishing a relationship between a cumulative capacity of the target area and the state of health of the battery; correlating the number of cycles in the current state of the battery with the state of health of the battery using the cumulative capacity of the target area and determining a relationship between the number of cycles and the state of health of the battery; and predicting the state of health of the battery in the future according to the relationship between the number of cycles and the state of health of the battery. The method is simple and easy to operate, and practical as well.

Abstract: The present disclosure relates to a current collecting component, a battery, and a battery module. The current collecting component includes a current collecting part and a connection part. The current collecting part includes a current collecting region and at least one electrical connection region. The connection part is connected with the current collecting region, wherein a thickness of the current collecting region is greater than a thickness of the electrical connection region.

Abstract: The present disclosure discloses a protective film assembly, applied to an electrode assembly of an energy storage device, and including an insulation sheet for wrapping the electrode assembly and arranged between a housing of the energy storage device and the electrode assembly. The first side surface covering region includes a first covering sub-region and a second covering sub-region which can overlap each other; the second side surface covering region includes a third covering sub-region and a fourth covering sub-region which can overlap each other; the maximum sizes of the first covering sub-region and the second covering sub-region in a thickness direction and height direction of the electrode assembly are equal, so that the first covering sub-region and the second covering sub-region have a high matching degree and a large bonding area. The present disclosure further discloses an energy storage device.

Abstract: An energy-storage device, an electrical apparatus, and a winding method are provided in the disclosure. The energy-storage device includes an electrode and a separator, where the electrode and the separator are stacked and wound to form a cell. The electrode is connected with a tab at an end of the electrode in a width direction of the electrode, where the tab includes a first tab and at least one second tab. The first tab is positioned adjacent to an end of the electrode in a length direction of the electrode, and the first tab defines a U-shaped notch. The U-shaped notch is configured to indicate a winding end position of the electrode, facilitating identification and winding automation.

Abstract: A terminal assembly, a top cover assembly, an energy storage device and electrical equipment are provided. The terminal assembly has an electrode terminal, an plastic member and a connector. A diametrical dimension of the electrode terminal is D, a minimum radial distance between the connector and the electrode terminal is d, and a maximum radial expansion dimension within a normal use range of the electrode terminal is P, 20?D/d?60, 0.01?P/D?0.03.

Abstract: The present disclosure discloses a lower plastic member, a top cover assembly, an energy storage device, and electrical equipment, which can solve the problem of damage to an electrode assembly caused by the fact that a lower plastic member collides with the electrode assembly device and other structures arranged on the battery cell, and prolong the service life of the energy storage device and electrical equipment.

Abstract: A manufacturing method of a top cover assembly, a top cover assembly and an energy storage device are provided. The method includes: providing a top cover plate, which is provided with an outlet hole; placing an electrode terminal above one side of the top cover plate to cover the outlet hole, so that a first space is defined between the top cover plate and the electrode terminal; placing a connector on the side of the top cover plate that is used for placing the electrode terminal. The connector has a first end portion surrounding a peripheral surface of the electrode terminal, and the connector has a second end portion in contact with the top cover plate.

Abstract: The disclosure provides a design method for a connection sheet, a connection sheet, and an energy storage device. The design method for the connection sheet includes: an area S of a welding region, connectable to a tab, of the connection sheet is obtained; the connection sheet is divided into a first effective region and a second effective region, where the first effective region is a region, having a regular shape, of the connection sheet, the second effective region is a region, connectable to a terminal post, of the connection sheet, the first effective region is implemented as N first effective regions, N?1, and multiple first effective regions are connected on the same side of the second effective region; a gauge size of the first effective region is determined according to S=a*S1, a being in a range of 0.095˜0.96, and S1 being an area of the first effective region.

Abstract: A lower plastic assembly, an energy storage apparatus, and an electric device are provided in the disclosure. The lower plastic assembly includes a first lower plastic member. The first lower plastic member includes a first-lower-plastic-member body. The first-lower-plastic-member body further has a first upper surface and a first lower surface. The first upper surface is opposite to the first lower surface. The first-lower-plastic-member body defines a first liquid-injection through-hole. The first liquid-injection through-hole extends through the first-lower-plastic-member body and is located at one end of the first-lower-plastic-member body. A cutout is defined at one side of the first liquid-injection through-hole and is in direct communication with the first liquid-injection through-hole, and the cutout extends through the first upper surface and the first lower surface.

Abstract: A firefighting method and system for energy storage, and a storage medium are provided in implementations of the present disclosure. The method includes the following. The BMS turns on a first exhaust fan corresponding to a first battery cluster where a first battery module is disposed to exhaust a preset gas from the energy-storage container, when a first gas detector disposed in the first battery module detects the preset gas. The BMS determines whether to turn on a first firefighting apparatus corresponding to the first battery cluster based on a concentration of the preset gas at each moment in a preset period and a temperature of the first battery module at each moment in the preset period, to extinguish a fire at a battery module in the energy-storage container.

Abstract: Embodiments of the present application provide a fire-protection system and method for a container-type energy storage device and a storage medium, where the system includes at least one detector module, a data prediction apparatus and a fire-protection host of the container-type energy storage device, and the data prediction apparatus is communicatively connected to the at least one detector module and the fire-protection host of the container-type energy storage device, respectively.

Abstract: The present disclosure provides fire-protection detecting method and device, applied to a container-type energy storage system. The method includes: obtaining first sampling data, second sampling data, and third sampling data; determining a first sampling temperature based on the first sampling data, and determining whether a risk event has occurred in the container-type energy storage system based on the first sampling temperature; if it is determined that the risk event has occurred, determining whether the target lithium battery cluster has caught fire based on the second sampling data and/or the third sampling data; if it is determined that the target lithium battery cluster has caught fire, calling the fire-protection system to extinguish fire and sending a first prompt message to the terminal device to prompt that the target lithium battery cluster has caught fire; determining whether to shut down the fire-protection system based on the updated first sampling data.