EVE ENERGY STORAGE CO., LTD.

The present application provides an adapter piece structure, a battery cell structure and an assembly process therefor, as well as a battery for large-scale energy storage. The adapter piece structure includes a tab connecting portion and a terminal connecting portion, the tab connecting portion is configured to connect with a tab of a battery cell, and the terminal connecting portion is connected with the tab connecting portion. The terminal connecting portion has a first side, the first side has a clean area provided to be cleaned, and the clean area includes a welding area and an annular area arranged around a circumference of the welding area. The welding area is configured for welding the terminal connecting portion with a terminal of a cover plate.

An energy storage system is provided with a combiner cabinet. The combiner cabinet includes: a cabinet body provided with both a first isolation chamber and a second isolation chamber, and a cabinet door pivotally connected to the cabinet body and configured to enclose the first isolation chamber and the second isolation chamber; where the first isolation chamber and the second isolation chamber are arranged in a preset first direction, the first isolation chamber is provided with a first power distribution module, the second isolation chamber is provided with an uninterruptible power supply, and the uninterruptible power supply is disposed close to the bottom of the cabinet body and configured as a backup power supply.

A laminated battery cell and a preparation device and method thereof are provided. The laminated battery cell is prepared by folding a battery cell structure. The battery cell structure includes one or more first electrode sheets, one or more separators and one or more second electrode sheets. The one or more first electrode sheets are located on and connected to a side of the one or more separators by a normal temperature and pressure conductive adhesive. A plurality of second electrode sheets are alternately arranged on and connected to a side of the one or more separators facing away from the one or more first electrode sheets by a normal temperature and pressure conductive adhesive. The normal temperature and pressure conductive adhesive has good adhesion and conductivity, improves the battery liquid absorption effect and interface conditions, and improves battery performance.

The application provides an access control method, system, related apparatus, and energy storage system. The access control system includes a switch control module and an access control module connected to each other; the access control module is configured to acquire fire protection data within the energy storage system and operational data of the energy storage module, determine a target access control mode of the access control system based on the acquired data, and determine an access control instruction for the switch control module based on the target access control mode.

A high-voltage box, a battery cluster, and an energy storage system are provided. The high-voltage box includes a first interface, a second interface, a third interface, a fourth interface, a first fuse, and a main control module. The third interface is electrically connected to the battery pack through the first fuse and the first interface in sequence. Two ends of the second interface are electrically connected to the battery pack and the fourth interface, respectively. The main control module includes a voltage acquisition module, one end of the voltage acquisition module is electrically connected to a first node, and the other end of the voltage acquisition module is electrically connected to a second node.

The present disclosure provides a high-voltage box power supply system and an energy storage system, where the high-voltage box power supply system is applied to the energy storage system and includes: a power supply; and a plurality of high-voltage boxes; where the power supply is electrically connected to one of the plurality of high-voltage boxes, and the plurality of high-voltage boxes are electrically connected to each other in sequence, so that the power supply supplies power to the plurality of high-voltage boxes.

A cover plate assembly, a battery cell, and a battery are provided, relating to the technical field of batteries. The cover plate assembly includes a cover plate, a lower plastic member, an electrode post, and a tab insulating film. The lower plastic member is connected to the cover plate and is provided with an electrode post clearance hole. The electrode post is fixed to the cover plate and extends through the electrode post clearance hole. The electrode post is provided with a tab connection groove. The tab insulating film is disposed on a side of the lower plastic member facing away from the cover plate and is configured to insulate and isolate a tab of the battery cell from a housing of the battery cell.

An explosion-proof valve and a box are provided in the application. The explosion-proof valve is configured for installing in the box, and includes a valve body including a breathing passage, a press cover and a breathing mechanism. The valve body is connected to the valve body, and a gap is between the press cover and the valve body. The breathing mechanism is movably connected to the press cover, and a breathing switch is formed between the breathing mechanism and the valve body. When the breathing mechanism abuts against the valve body, the breathing switch is closed, and an inside of the box is not in communication with an outside of the box. When the breathing mechanism is separated from the valve body, the breathing switch is opened, and the inside of the box is communicated with the outside of the box.

A marine busbar cabinet includes a low-voltage control system, a high-voltage busbar system, a cabinet body, and an insulating isolation structure. The high-voltage busbar system includes at least two battery clusters. The at least two battery clusters satisfy at least one of being connected in series or being connected in parallel. The low-voltage control system is electrically connected to the at least two battery clusters. The cabinet body has an accommodation cavity configured to accommodate the low-voltage control system and the high-voltage busbar system. The insulating isolation structure is disposed in the accommodation cavity. The insulating isolation structure is configured to divide the accommodation cavity into a low-voltage chamber and a high-voltage chamber that are insulated from each other. The low-voltage control system is disposed in the low-voltage chamber. The high-voltage busbar system is disposed in the high-voltage chamber.

Disclosed in the present disclosure is a battery cluster, including a battery insertion case, an insertion end of which is provided with a first limiting structure, and a battery cabinet body provided with an insertion opening and at least one slots. Inner side walls of each slot are provided with a slot track and a guiding rib. The battery insertion case is inserted through the insertion opening and slides along the slot track, an end of the guiding rib close to the insertion opening is provided with a chamfer, and a second limiting structure is provided in each slot at an end away from the insertion opening. When the battery insertion case is completely inserted into one slot, the guiding rib is abutted against two sides of the battery insertion case, and the first limiting structure and the second limiting structure are limited and fixed to each other.