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Battery cell manufacturing method

A manufacturing method and cell technology, applied in final product manufacturing, sustainable manufacturing/processing, circuits, etc., can solve problems such as polymetallic slag, and achieve the effect of high production efficiency and low cost

Pending Publication Date: 2022-05-24
GUANGZHOU XIAOPENG MOTORS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the welding between the tabs of the full-tab cylindrical cells and the collector plate has many problems such as the generation of metal slag, which has become a difficult problem in the industry.

Method used

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  • Battery cell manufacturing method
  • Battery cell manufacturing method
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Embodiment Construction

[0018] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific embodiments, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and examples.

[0019] figure 1 It is a schematic flowchart of a method for manufacturing a battery cell according to an embodiment of the present invention. The embodiment of the battery cell manufacturing method includes the following steps:

[0020] S11, providing a winding core including a pole piece, wherein the pole piece includes an electrode and a pole lug protruding from one side of the electrode, and the surface of the pole lug is provided with a solder layer;

[0021] S13, abutting the current collecting plate with the tab;

[0022] S15, induction welding the current collecting plate and the tabs together through the solder layer.

[0023] In step S11...

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Abstract

The embodiment of the invention provides a battery cell manufacturing method. The method comprises the steps that a roll core comprising a pole piece is provided, the pole piece comprises an electrode and a tab arranged on one side of the electrode in a protruding mode, and a solder layer is arranged on the surface of the tab; enabling a current collecting plate to abut against the tab; and the collector plate and the tab are inductively welded together through a solder layer. According to the method, no metal slag is generated in the technological process of welding the collector plate and the tab, and the production efficiency is high.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a method for manufacturing a battery core. Background technique [0002] With the development of society and people paying more and more attention to environmental protection, electric vehicles have been widely used. Power batteries used in electric vehicles usually use lithium-ion batteries, which have the characteristics of high energy density and large single energy. [0003] With the further improvement of the power output performance requirements of electric vehicles, higher requirements are placed on the single battery that provides power: high power and high energy density. In order to achieve high power output, uniform current density and fast heat dissipation, multi-pole and full-pole batteries have been developed. The all-tab cylindrical battery has the advantages of low internal resistance, and the solder joint can withstand the impact of high-rate charge and disch...

Claims

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Application Information

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IPC IPC(8): H01M50/536H01M50/538H01M10/0587H01M10/0525
CPCH01M50/536H01M50/538H01M10/0587H01M10/0525Y02P70/50
Inventor 钱锋汤淑兰仲亮邹柯
Owner GUANGZHOU XIAOPENG MOTORS TECH CO LTD