Abstract: The present application discloses a fusing device and a power battery. The fusing device includes: a conductive sheet and an insulating connection component, wherein a clearance portion is arranged on the conductive sheet, and the conductive sheet defines a fusing portion at the clearance remaining position on at least one side of the clearance portion; and the insulating connection component is provided with a connection portion and a load bearing portion, the insulating connection component is connected to the conductive sheet through the connection portion, the load bearing portion is located below the fusing portion, and molten beads formed after the fusing portion is blown are enabled to fall into the load bearing portion.

Abstract: A material of ternaries co-doped with lithium manganese iron phosphate, a method of manufacturing the material, and an application of the material are provided. The material of ternaries co-doped with lithium manganese iron phosphate includes a monocrystalline ternary, a polycrystalline ternary, and lithium manganese iron phosphate. A particle size distribution of the monocrystalline ternary in the present disclosure is between the large particles of the polycrystalline ternary and the small particles of the lithium manganese iron phosphate.

Abstract: The present disclosure relates to a modified ternary and lithium manganese iron phosphate composite material and a preparation method and an application thereof. The material includes a modified ternary material and a modified lithium manganese iron phosphate material that are composite; wherein the modified ternary material includes a ternary material, a ternary material double-layer cladding layer, and ternary material doped metal ions; the ternary material double-layer cladding layer includes a ternary material metal oxide layer and a ternary material cationic cladding layer; the modified lithium manganese iron phosphate material includes a lithium manganese iron phosphate material, a lithium manganese iron phosphate double-layer cladding layer, and lithium manganese iron phosphate doped metal ions; the lithium manganese iron phosphate double-layer cladding layer includes a lithium manganese iron phosphate metal oxide layer and a lithium manganese iron phosphate cationic cladding layer.

Abstract: A modified lithium manganese iron phosphate positive electrode material and a preparation method and an application thereof are provided. The modified lithium manganese iron phosphate positive electrode material includes a doped lithium manganese iron phosphate core; and a coating layer disposed on a surface of the doped lithium manganese iron phosphate core. The doped lithium manganese iron phosphate core comprises an Nb element, and the coating layer comprises LiNbO3 and Nb2O5.

Abstract: Provided in the present application is an electrolyte and lithium-ion battery, the electrolyte including a fluorosultones compound as shown in Formula 1. The electrolyte prepared in the present application is applied to lithium iron manganese phosphate batteries, which effectively suppresses the dissolution of manganese in lithium iron manganese phosphate materials, and significantly improves the high-temperature storage performance and high-temperature cycling performance of the batteries.

Abstract: Provided in the present application is an electrolyte and lithium-ion battery. The electrolyte includes a compound as shown in formula 1, in which R1 is selected from any one of C1-C6 fully or partially substituted fluoroalkyl, and R2 and R3 are independently selected from any one of a hydrogen atom, an alkane, a phenyl, an alkylbenzene, or a methoxysilane respectively.

Abstract: A thermal management power battery assembly and a battery pack having a plurality of the thermal management power battery assemblies connected in series. The battery assembly includes a plurality of staggered battery cells, a thermal conduction module, a liquid cooling module, and a battery cell fixing module for fixing the battery cells. The battery cell fixing module includes a battery cell position limiting device, and assembly supporting device located at two sides of the battery cell position limiting device; the liquid cooling module is integrated in the assembly supporting device; the thermal conduction module is simultaneously in contact with the battery cells and the assembly supporting device. The liquid cooling module is integrated with the assembly supporting device. The liquid cooling module is intergrated with the assembly supporting device.

Abstract: Provided sealing assembly and lithium ion battery. The sealing assembly includes a cover plate, conductors, and sealing mechanisms. The cover plate provided with fixing members for fixing electrode posts. The fixing members and the cover plate integrally stamped and formed. Each fixing member includes an enclosure plate and a limiting plate. The cover plate further provided with mounting holes for installing the electrode posts. Each enclosure plate located on first side surface of the cover plate and surrounds a periphery of a respective mounting hole. The limiting plate formed by extending an end of respective enclosure plate facing away from the cover plate to center of a respective mounting hole. Each conductor connected between respective fixing member and respective electrode post through injection-molded. The sealing mechanism fixed on second side surface of the cover plate and configured to seal gaps between the cover plate and the electrode posts.

Abstract: A thermal management power battery assembly and a battery pack having a plurality of the thermal management power battery assemblies connected in series. The battery assembly includes a plurality of staggered battery cells, a thermal conduction module, a liquid cooling module, and a battery cell fixing module for fixing the battery cells. The battery cell fixing module includes a battery cell position limiting device, and assembly supporting device located at two sides of the battery cell position limiting device; the liquid cooling module is integrated in the assembly supporting device; the thermal conduction module is simultaneously in contact with the battery cells and the assembly supporting device. The liquid cooling module is integrated with the assembly supporting device.