Electrode assembly including electrode lead coupling portion coupling by adhesive portion and pouch-type battery cell

An electrode lead and electrode assembly technology, which is applied to large-sized batteries/batteries, small-sized batteries/batteries, welding equipment, etc., can solve the problem of not disclosing the status of battery cells, and achieve the effect of shortening the time.

Pending Publication Date: 2022-07-29
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] As described above, the prior art literature discloses a method of completely interrupting the electrical connection between the electrode leads due to the electrode lead being cut, but does not disclose a technique for checking the state of the battery cell even after the electrical connection therebetween is interrupted.

Method used

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  • Electrode assembly including electrode lead coupling portion coupling by adhesive portion and pouch-type battery cell
  • Electrode assembly including electrode lead coupling portion coupling by adhesive portion and pouch-type battery cell
  • Electrode assembly including electrode lead coupling portion coupling by adhesive portion and pouch-type battery cell

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Embodiment Construction

[0040] Now, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily implement the preferred embodiments of the present invention. However, in describing in detail the principles of operation of the preferred embodiments of the present invention, the detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.

[0041] Furthermore, throughout the drawings, the same reference numbers will be used to refer to components that perform similar functions or operations. When it is said in the specification that a component is connected to another component, not only the component can be directly connected to the other component, but also the component can be indirectly connected to the other component via the further component. Furthermore, th...

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PUM

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Abstract

The present invention relates to an electrode assembly in which a plurality of electrodes are stacked with a separator interposed therebetween; electrode tabs protruding from the electrodes are coupled to electrode leads in a state in which an electrode tab bundle is formed; the electrode leads comprise a first electrode lead connected with the electrode connector and a second electrode lead connected with the first electrode lead; and an electrode lead coupling portion where the first electrode lead and the second electrode lead are coupled includes an adhesion portion and a spot welding portion.

Description

technical field [0001] This application claims the benefit of priority from Korean Patent Application No. 2020-0015596 filed on February 10, 2020, the disclosure of which is incorporated herein by reference in its entirety. [0002] The present invention relates to an electrode assembly including an electrode tab-lead coupling portion coupled by means of an adhesive portion and spot welding, and a pouch-shaped battery cell including the electrode assembly, and more particularly to such an electrode An assembly and a pouch cell including the electrode assembly configured to allow voltage measurement using a lightly flowing current even if the current flowing during charge and discharge is interrupted due to an increase in pressure in the pouch cell , according to which the voltage of the pouch cell can be measured. Background technique [0003] A lithium secondary battery is formed by stacking a positive electrode, a separator, and a negative electrode. The selection of mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/543H01M50/531H01M50/54H01M50/172H01M50/183H01M10/48H01M50/116B23K11/11H01M50/557B23K101/38
CPCH01M50/54B23K11/115H01M10/0525H01M10/0585H01M50/528H01M50/534H01M50/536H01M50/553H01M50/178Y02E60/10H01M50/531H01M50/172H01M50/183H01M10/48H01M50/116B23K11/11H01M50/543H01M50/557B23K2101/38H01M50/10H01M50/105
Inventor 朴钟弼
Owner LG ENERGY SOLUTION LTD
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