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CN-121983699-A - Battery and manufacturing method thereof

CN121983699ACN 121983699 ACN121983699 ACN 121983699ACN-121983699-A

Abstract

The invention discloses a battery and a manufacturing method thereof, wherein a battery core and an insulating plate are selected, the battery core and the insulating plate are arranged at intervals, and an electric positive electrode and an electric negative electrode are welded on an assembly connecting plate through ultrasonic welding; connecting and fixing two adjacent insulating plates; the battery module is characterized in that a protection plate is additionally arranged on the outer side of the battery cell, the protection plate and the insulation plate are connected into a whole after penetrating through assembly holes on the protection plate and the insulation plate through bolts, a cover plate is covered on the top of the battery module, a plurality of circles of damping sponge is wound on the battery module and tightly wrapped with the battery module through a heat shrinkage film, the control plate and the assembly connection plate are connected, the battery module is placed in a shell, and the shell cover is covered and fixed. The battery module is wrapped by the damping sponge and covered by the heat shrinkage film, so that the battery module is more tightly wrapped, and the damping effect of the battery module is improved.

Inventors

  • XU FENG

Assignees

  • 大连绿能锂想科技有限公司

Dates

Publication Date
20260505
Application Date
20240408

Claims (10)

  1. 1. The battery is characterized by comprising a battery module, a control board and a shell, wherein the output end and the input end of the battery module are electrically connected with the control board, and the shell is provided with a power supply end and a charging interface which are electrically connected with the control board; the battery module comprises a battery core, an insulating plate and an assembly connecting plate, wherein the positive electrode and the negative electrode of the battery core are welded with the assembly connecting plate, the battery core and the insulating plate are arranged at intervals, a control connecting end is arranged at the top of the assembly connecting plate and is electrically connected with a control panel, a protection plate is arranged at the outer side of the battery core at the outermost side of the battery module, a protection layer is arranged on the inner wall of the protection plate, assembly holes are formed in the protection plate and the insulating plate, and the protection plate and the insulating plate sequentially penetrate through the assembly holes through bolts to be connected.
  2. 2. The battery of claim 1, wherein a water cooling plate is arranged between the battery core and the insulating plate, and a water cooling pipe connected with the water cooling plate is arranged at the bottom of the battery module.
  3. 3. A battery according to claim 2, wherein the protection plate is a steel case and the protection layer is a soft layer.
  4. 4. A battery according to claim 3, wherein the outer side edge of the insulating plate is provided with a baffle plate, the side edges of the battery cells are wrapped by two adjacent baffle plates, the baffle plates are provided with buckling pieces and buckling holes, and the buckling pieces of the former baffle plate are inserted into the buckling holes of the latter baffle plate to connect and fix the buckling pieces and the buckling holes.
  5. 5. The battery of claim 4, wherein a cover plate is arranged on the top of the battery module, a through hole is arranged on the cover plate, and the control connection end penetrates through the through hole to be connected with the control board.
  6. 6. A battery as in claim 5 wherein the housing comprises a shell and a cover, and the object is removably coupled to the cover.
  7. 7. A battery according to claim 6, wherein the housing cover and the housing opposite thereto are provided with handles.
  8. 8. The battery of claim 7, wherein the power supply terminal and the charging interface are both disposed on the cover.
  9. 9. A method for manufacturing a battery is characterized by comprising the following steps, Step 1, selecting an electric core and an insulating plate, arranging the electric core and the insulating plate at intervals, and welding an electric positive electrode and an electric negative electrode on an assembly connecting plate through ultrasonic welding; Step 2, connecting and fixing two adjacent insulating plates through the buckling pieces and the buckling holes, so as to wrap the side surfaces of the battery cells; Step 3, installing a protection plate on the outer side of the outermost battery cell, and connecting the protection plate, the battery cell and the insulation plate into a whole after the bolts penetrate through the protection plate and the assembly holes on the insulation plate; step 4, covering the top of the assembled battery module with a cover plate, and exposing a control connecting end on the assembled connecting plate; step 5, winding a plurality of circles of damping sponge on the battery module, and tightly wrapping the damping sponge and the battery module through a heat shrinkage film; step 6, connecting the control board with the assembly connecting plate, and arranging the circuit structure according to the requirement; And 7, placing the battery module into a steel shell, and covering and fixing the shell cover.
  10. 10. The battery according to claim 1, wherein a water cooling plate is added between the electric core and the insulating plate in the step 1, and a water cooling pipe is installed at the bottom of the battery module.

Description

Battery and manufacturing method thereof Technical Field The invention relates to the technical field of batteries, in particular to a battery for an electric vehicle and a manufacturing method thereof. Background Along with the development of economy and society, electric vehicles are becoming more popular, the electric core component is a battery for providing power, at present, most lead-acid batteries are adopted in the market, the application range is wide, the production cost is low, and meanwhile, lithium batteries are also appeared, and the cruising ability of the lithium batteries is stronger. The battery is used as one of the core components of the electric vehicle, the safety and stability of the battery in the vehicle are of great importance, the traditional lithium battery is directly placed in a battery storage box after being assembled, when the battery is subjected to jolting and other conditions, circuit faults are easy to occur, the wiring terminal is easy to fall off, the loosening is easy, the anti-vibration effect is poor, and the battery is easy to overheat and damage when the battery is charged in summer due to the fact that the traditional lithium battery is not provided with a cooling device in the battery, so that the service life of the battery is reduced. Therefore, a battery and a method for manufacturing the same are a problem to be solved urgently. Disclosure of Invention The invention aims to solve the technical problem of providing a lithium battery with strong shock resistance for an electric vehicle and a manufacturing method thereof, wherein a water-cooling device is added to ensure that the lithium battery is at a normal working temperature in the use process. In order to solve the technical problems, the technical scheme provided by the invention is that the battery comprises a battery module, a control board and a shell, wherein the output end and the input end of the battery module are electrically connected with the control board, and the shell is provided with a power supply end and a charging interface which are electrically connected with the control board; the battery module comprises a battery core, an insulating plate and an assembly connecting plate, wherein the positive electrode and the negative electrode of the battery core are welded with the assembly connecting plate, the battery core and the insulating plate are arranged at intervals, a control connecting end is arranged at the top of the assembly connecting plate and is electrically connected with a control panel, a protection plate is arranged at the outer side of the battery core at the outermost side of the battery module, a protection layer is arranged on the inner wall of the protection plate, assembly holes are formed in the protection plate and the insulating plate, and the protection plate and the insulating plate sequentially penetrate through the assembly holes through bolts to be connected. Further, a water cooling plate is arranged between the battery core and the insulating plate, and a water cooling pipe connected with the water cooling plate is arranged at the bottom of the battery module. Further, the outer side edge of the insulating plate is provided with a baffle plate, the side edge of the battery cell is wrapped by two adjacent baffle plates, the baffle plate is provided with a buckling piece and a buckling hole, and the buckling piece of the former baffle plate is inserted into the buckling hole of the latter baffle plate to connect and fix the two. The invention also provides a manufacturing method of the battery, which comprises the following steps, Step 1, selecting an electric core and an insulating plate, arranging the electric core and the insulating plate at intervals, and welding an electric positive electrode and an electric negative electrode on an assembly connecting plate through ultrasonic welding; Step 2, connecting and fixing two adjacent insulating plates through the buckling pieces and the buckling holes, so as to wrap the side surfaces of the battery cells; Step 3, installing a protection plate on the outer side of the outermost battery cell, and connecting the protection plate, the battery cell and the insulation plate into a whole after the bolts penetrate through the protection plate and the assembly holes on the insulation plate; step 4, covering the top of the assembled battery module with a cover plate, and exposing a control connecting end on the assembled connecting plate; step 5, winding a plurality of circles of damping sponge on the battery module, and tightly wrapping the damping sponge and the battery module through a heat shrinkage film; step 6, connecting the control board with the assembly connecting plate, and arranging the circuit structure according to the requirement; And 7, placing the battery module into a steel shell, and covering and fixing the shell cover. Furthermore, in the step 1, a water cooling plate is added between the battery core