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Pre-lithiation apparatus, method for manufacturing negative electrode part using same, and negative electrode part

A negative electrode and pre-lithiation technology, which is applied in the field of pre-lithiation equipment, can solve problems such as deterioration of output, and achieve the effect of reducing process time and increasing output

Active Publication Date: 2019-11-19
LG ENERGY SOLUTION LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Also, as described above, since the large-area negative electrode is punched or cut to form a plurality of negative electrodes each having a predetermined area smaller than the large-area negative electrode, and the plurality of punched (or cut) negative electrodes The electrodes are individually immersed in the bath to perform pre-lithiation, so it takes a long time to perform pre-lithiation on the multiple electrodes, thereby degrading yield

Method used

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  • Pre-lithiation apparatus, method for manufacturing negative electrode part using same, and negative electrode part
  • Pre-lithiation apparatus, method for manufacturing negative electrode part using same, and negative electrode part
  • Pre-lithiation apparatus, method for manufacturing negative electrode part using same, and negative electrode part

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Embodiment Construction

[0054] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, this invention may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the figures, the same reference numerals denote the same elements throughout.

[0055] The present invention relates to a pre-lithiation device capable of reducing reduction in battery capacity or increasing capacity, a method of producing a negative electrode unit by using the pre-lithiation device, and a negative electrode unit. Moreover, the present invention relates to a pre-lithiation device, a method of producing a negative electrode unit by using the pre-lithiation device capable of pre-lithiation of a negative electrode to improve Capacity, thereby reducing th...

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Abstract

By using a pre-lithiation apparatus according to one embodiment of the present invention, the processing time for pre-lithiating a negative electrode can be shortened compared to conventional technologies, and thus productivity can be increased. Also, as a lithium roll comprises an elastic member, pre-lithiation can be performed thoroughly and evenly.

Description

technical field [0001] The present invention relates to a pre-lithiation device, a method of producing a negative electrode unit by using the pre-lithiation device, and a negative electrode unit, and more particularly, the present invention relates to a method capable of increasing the yield and Quality pre-lithiation device, a method of manufacturing a negative electrode unit by using the pre-lithiation device, and a negative electrode unit Background technique [0002] Recently, with the rapid spread of electronic devices using batteries such as mobile phones, notebook computers, electric vehicles, etc., the demand for small, lightweight secondary batteries with relatively high capacity has rapidly increased. [0003] In general, a secondary battery includes: a positive electrode and a negative electrode spaced apart from each other; and a separator disposed between the positive electrode and the negative electrode and coated with an electrolyte. Such a secondary battery ...

Claims

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Application Information

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IPC IPC(8): H01M4/04H01M4/1391H01M4/131
CPCH01M4/131H01M4/1391H01M4/0435H01M4/485Y02E60/10H01M4/0459Y02P70/50H01M4/0409H01M4/134H01M4/366H01M4/661H01M10/0525H01M2004/021H01M2004/027
Inventor 蔡午秉姜允雅宋俊赫金银卿禹相昱
Owner LG ENERGY SOLUTION LTD
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