Abstract: A laminating device, a processing method for the electrode plate assembly, and a thermally bonding device for electrode plates are provided. The laminating device includes a laminating platform, a first driving roller assembly, and a second driving roller assembly. A first spacing d1 is arranged between the first driving roller assembly and the second driving roller assembly. A length of each of the electrode plate units is L, d1 is less than L, or d1 is greater than L, and a ratio between d1 and Lis a non-integer.

Abstract: Disclosed in the present disclosure is a positive electrode active material and a lithium-ion battery, the positive electrode active material comprising lithium iron phosphate coated with carbon layer, and an ID/IG value of the positive electrode active material is 0.75-1.2, wherein a peak intensity at a wave number of 1360 cm?1 is considered as ID and a peak intensity at a wave number of 1580 cm?1 is considered as IG in a Raman spectrum of the positive electrode active material.

Abstract: Disclosed is a composite lithium iron phosphate material, and a positive electrode and a lithium ion battery using the same. The composite lithium iron phosphate material is made of a composition comprising an iron phosphate precursor, a lithium source, and a carbon source, the carbon source covers the iron phosphate and the lithium source, the carbon source includes a synthetic polymer carbon source and a biomass carbon source, and the biomass carbon source includes carbon fibers.

Abstract: A battery, a battery module, a battery pack, a battery monitoring system and a vehicle are provided. The battery includes a housing; a cell disposed in the housing; and a sensing structure disposed in the housing, and the sensing structure is configured to collect status data within the battery and transmit the status data to the outside of the battery.

Abstract: A power battery cover is provided. A terminal pressing block of the power battery cover is arranged above a top cover sheet, a pole bottom plate is arranged below the top cover sheet, a copper-aluminum composite plate is formed into composite poles by means of a cold heading or stamping process, and a copper base part is connected to the pole bottom plate by laser welding. Each composite pole sequentially passes through the terminal pressing block, the top cover sheet and the pole bottom plate from top to bottom, a sealing member is sleeved on the composite pole and covers a composite connection surface between an aluminum base part and the copper base part in a sealing manner. The processing steps of the composite pole are less, and the assembly steps and assembly methods are simplified, which improves the processing efficiency and greatly reduces the cost.

Abstract: The present disclosure provides a square battery and a welding method. The square battery includes: a cover plate provided with a pole; and a core provided with a tab, where the tab is directly connected to the pole by laser welding, so that construction of an energy transmission path of the battery is realized, and a charging and discharging function of the core is realized. Additionally, since the tab of the core of the square battery is directly connected to the cover plate of the square battery, an auxiliary welding sheet and a connection sheet are removed, thereby improving the internal space utilization rate and the mass specific energy of the square battery.

Abstract: Disclosed are a negative electrode slurry composition and application. The negative electrode slurry composition includes a solvent and negative electrode material components dispersed in the solvent. The negative electrode material components include a negative electrode active substance, a conductive agent, a dispersant, and a binder. The binder includes a binder A and a binder B. The binder A is at least one of polyacrylic acid, polyacrylic salt, polyacrylate, polyacrylonitrile, or polyimide binders. A monomeric unit contained in the binder B is at least one of an aromatic vinyl monomeric unit, an aromatic conjugated diene monomeric unit, an alkenyl unsaturated carboxylic acid monomeric unit, an unsaturated alkyl carboxylate monomeric unit, or an acrylonitrile monomeric unit.

Abstract: Provided are a battery top cover and a battery. The battery top cover includes a cover plate, a pressing plate, an insulation assembly and a pole. The cover plate is provided with a mounting hole penetrating through two sides in a thickness direction of the cover plate. The pole is disposed in the mounting hole and is spaced from the cover plate. The pole includes a pole body, a middle of a first end of the pole body is provided with a first mounting groove configured to mount a connection member, and a circumferential portion of the first end of the pole body is provided with a first flange. A free end of the first flange extends towards a direction facing away from an axis of the mounting hole. The pressing plate is sleeved on an end of the pole body facing away from the first flange.

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: 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: 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 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.