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Lithium ion battery with positive electrode and negative electrode in same-side arrangement and manufacturing method thereof

A lithium-ion battery, side layout technology, applied in the manufacture of electrolyte batteries, secondary batteries, non-aqueous electrolyte batteries, etc., to achieve the effects of improving market competitiveness, solving poor assembly and sealing, and improving charge and discharge rate performance

Pending Publication Date: 2017-09-22
GEESUN AUTOMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of this application is to solve the problem of using ultrasonic welding and laser technology to connect battery tabs and poles, battery shells and shell covers in the prior art. This application proposes a lithium-ion battery with positive and negative electrodes arranged on the same side and This battery manufacturing method improves the efficiency and yield of battery production, increases battery capacity and energy density, improves welding quality and battery rate discharge performance, and reduces equipment input costs in the battery production process.

Method used

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  • Lithium ion battery with positive electrode and negative electrode in same-side arrangement and manufacturing method thereof
  • Lithium ion battery with positive electrode and negative electrode in same-side arrangement and manufacturing method thereof
  • Lithium ion battery with positive electrode and negative electrode in same-side arrangement and manufacturing method thereof

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Embodiment Construction

[0044] The present application will be described in further detail below through specific embodiments in conjunction with the accompanying drawings. The present application can be implemented in many different forms, and is not limited to the implementation manner described in this embodiment. The purpose of providing the following specific embodiments is to facilitate a clearer and more thorough understanding of the disclosure of the present application, wherein the words indicating orientation such as up, down, left, and right are only for the positions of the structures shown in the corresponding drawings.

[0045] However, those skilled in the art may recognize that description of one or more of the specific details may be omitted, or other methods, components or materials may also be used. In some instances, some implementations were not described or described in detail.

[0046] In addition, the technical features and technical solutions described herein can also be com...

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Abstract

The application discloses a lithium ion battery with a positive electrode and a negative electrode arranged at the same side and a manufacturing method thereof. The lithium ion battery comprises a shell with an opening structure at an upper end, a naked cell held in the shell and provided with lugs at the left side and the right side, and a shell cover arranged at the upper opening of the shell and provided with poles at the left side and the right side; one end of the pole extends into the shell, and a lug connecting seam corresponding to the lug is formed on the pole extending into the shell; the lug extends into the lug connecting seam on the pole, and the lug is connected with the pole through the friction-stir welding process; the shell cover and the shell are connected together through the friction-stir welding process. By using the lithium ion battery disclosed by the application, the battery production efficiency and yield are improved, the battery capacity and the energy density are improved, the welding quality and the battery rate discharge performance are promoted, and the equipment input cost in the battery production process is lowered.

Description

technical field [0001] The application relates to the field of lithium battery production, in particular to a lithium ion battery with positive and negative electrodes arranged on the same side and a manufacturing method thereof. Background technique [0002] The welding technology used in the structure of lithium-ion batteries is mainly ultrasonic welding and laser welding. The poles are welded together, requiring reliable welding and low internal resistance; laser welding is mainly in the shell cover welding process, which is to weld the shell and shell cover together, requiring firm welding and good sealing. At present, the battery structure of the industry adopts ultrasonic welding and laser welding. [0003] Ultrasonic welding means that the metal parts to be welded should not be too thick, and the solder joints should not be too large. Abnormal phenomena such as solder joint offset, missing welding, false welding, welding breakage, and welding tension that do not meet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0525H01M10/058
CPCH01M10/0525H01M10/058Y02E60/10Y02P70/50
Inventor 陈耀平陈相阳如坤
Owner GEESUN AUTOMATION TECH
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