4results about How to "Same technical effect" patented technology

The application provides a battery monomer, a battery device and a power utilization device. The battery monomer comprises a shell and an electrode assembly. The electrode assembly is accommodated in the shell. The electrode assembly is in a winding shape. The electrode assembly has a flat area and a bending area. The bending area is arranged at the end of the flat area. The electrode assembly comprises a positive electrode sheet and a negative electrode sheet. The positive electrode sheet and the negative electrode sheet are opposite in polarity. The positive electrode sheet has a first end, which is located at the end of the outermost circle of the positive electrode sheet. The negative electrode sheet has a second end, which is located at the end of the outermost circle of the negative electrode sheet. At least one of the first end and the second end is arranged in the bending area. The battery monomer provided by the application is beneficial to reducing the risk of purple spots or lithium precipitation of the electrode sheet.

The utility model relates to the technical field of power batteries, and provides a battery distribution box and a battery pack. The battery distribution box comprises a shell, a BMS main board and a BDU assembly, wherein the BMS main board and the BDU assembly are arranged in the shell. The BDU assembly comprises a contactor and a copper bar assembly connected with a main contact of the contactor. A coil contact of the contactor is welded with the control bonding pad to be communicated with a low-voltage control circuit on the BMS main board, and a connecting piece on the copper bar assembly is welded with the acquisition bonding pad to be communicated with a high-voltage acquisition circuit on the BMS main board. According to the battery distribution box disclosed by the utility model, the BDU assembly and the BMS mainboard are integrated in the same shell, so that the occupation of the space in the battery pack can be reduced, the connector and the copper bar assembly in the BDU assembly are directly welded and connected with the bonding pad of the BMS mainboard, and the connection hidden danger caused by wiring harness connection is eliminated; and the connection strength and the connection reliability between the BMS mainboard and the BDU assembly are improved.

The utility model relates to power battery technical field and provide battery module and battery package. The battery module includes module unit, and module unit includes the module casing with the accommodation cavity, and is located in the accommodation cavity along the first direction arrangement multiple electric core units, and each electric core unit includes along second direction the multiple cylinder electric core arranged in order, the axial direction of cylinder electric core is identical with third direction, and the both ends of module casing in third direction are equipped with multiple through -hole respectively, and the through -hole is equipped with between any two adjacent cylinder electric core. The battery module of the utility model, through setting up multiple through -hole in the both ends of module casing, make up the through -hole between two cylinder electric cores, make cooling liquid liquid even along the axial direction of cylinder electric core and pass between each cylinder electric core, can reduce the stable difference between each cylinder electric core, benefit to promote the consistency of electric core temperature to guarantee the use effect of battery module.