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Laminated battery pole core assembly, laminated battery and preparation process

A battery pole, laminated technology, applied in battery pack parts, large flat battery/battery, secondary battery manufacturing, etc. Connection stability, weight reduction, improved deformation effect

Pending Publication Date: 2021-01-22
SHENZHEN XIMENGTE ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One of the objectives of the present invention is to provide a laminated battery pole core assembly to solve the technical problem that the thickness of the double-sided tape is very thin and it is very troublesome to punch the double-sided tape in the prior art

Method used

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  • Laminated battery pole core assembly, laminated battery and preparation process
  • Laminated battery pole core assembly, laminated battery and preparation process
  • Laminated battery pole core assembly, laminated battery and preparation process

Examples

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specific Embodiment approach

[0084] Further, see Figure 8 , as a specific embodiment of the preparation process of a laminated battery core assembly provided by the present invention, the following steps are included after step S3-3:

[0085] The pole core winding at the end surface of the pole core on which the pole core winding is spirally wound is subjected to a cutting process by a cutting process.

[0086] The pole core winding body not wound on the pole core is cut through the above steps.

[0087] Specifically, the cutting process is a laser cutting process or a blade cutting process, the cutting process is preferably a laser cutting process, and the cutting process can be performed without contacting the pole core winding at the end face of the pole core spirally wound with the pole core winding , to reduce the impact on the pole core winding on the pole core.

[0088] Optimally, the laser cutting process is realized by a laser cutting device.

[0089] Further, see Figure 8 , as a specific e...

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PUM

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Abstract

The invention provides a laminated battery pole core assembly, which further comprises a support plate and pole core winding bodies, wherein the support plate is arranged on at least one side of a pole core in the length direction, the pole core winding bodies are simultaneously wound on the surfaces of the support plate and the pole core along the direction of a spiral line, the adjacent pole core winding bodies in the spiral line direction are arranged at intervals, and a plurality of lightening holes are formed in the support plate. The invention further provides a laminated battery, whichcomprises a shell structure and the laminated battery pole core assembly, wherein the laminated battery pole core assembly is installed in the shell structure. The invention also provides a preparation process of the laminated battery pole core assembly, so that the pole core is not easy to deform, and the production efficiency of the laminated battery is improved.

Description

technical field [0001] The invention belongs to the technical field of laminated batteries, and more specifically relates to a laminated battery core assembly, a laminated battery and a preparation process. Background technique [0002] Stacked batteries are usually used in new energy vehicles. Compared with winding batteries, stacked batteries have lower internal resistance, more high-rate discharge capacity, and are easier to complete high-current discharge in a short time. The laminated battery pole core assembly of laminated batteries, the laminated battery pole core assembly includes pole cores and support plates, pole cores include several positive pole pieces, several negative pole pieces and several separators, several positive pole pieces, Several negative electrode sheets and several separators are laminated in a preset order. The pole core also includes a number of positive pole tabs and a number of negative pole tabs, each positive pole tab corresponds to the p...

Claims

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Application Information

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IPC IPC(8): H01M50/102H01M50/136H01M10/04
CPCH01M10/0413H01M10/0486H01M2220/20Y02E60/10Y02P70/50
Inventor 青勇
Owner SHENZHEN XIMENGTE ELECTRONICS CO LTD
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