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Pole piece pre-lithiation production line

A pre-lithiation and production line technology, applied in the direction of negative electrodes, battery electrodes, active material electrodes, etc., can solve the problems of high pre-lithium cost of pole pieces and high production cost of lithium batteries, so as to reduce the cost of pre-lithium pole pieces and reduce production cost effect

Active Publication Date: 2021-11-12
溧阳聚阳智能科技有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But now the pre-lithium cost of the pole piece is high, resulting in high production cost of lithium battery

Method used

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  • Pole piece pre-lithiation production line
  • Pole piece pre-lithiation production line
  • Pole piece pre-lithiation production line

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Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0025] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention discloses a pole piece pre-lithiation production line, and relates to the technical field of lithium battery production. The pole piece pre-lithiation production line comprises an embedding pre-lithiation device, a two-way pump, a refrigeration device, a cleaning device and a liquid removing and drying device. The refrigeration device is connected with the embedding pre-lithiation device through the two-way pump, the refrigeration device is used for refrigerating and storing a lithium solution, the two-way pump is used for pumping the lithium solution in the refrigeration device into the embedding pre-lithiation device, and the embedding pre-lithiationem device is used for conducting embedding pre-lithiation on a pole piece through the lithium solution. The two-way pump is further used for pumping a lithium solution in the embedding pre-lithiation device into the refrigeration device after the pre-lithium operation is completed, the embedding pre-lithiation device is connected with the liquid removing and drying device through the cleaning device, the cleaning device is used for cleaning the pole piece, and the liquid removing and drying device is used for removing residual liquid on the pole piece. According to the pole piece pre-lithiation production line provided by the invention, the lithium solution can be refrigerated and stored, so that the lithium solution can be reused, the pole piece pre-lithiation cost is reduced, and the lithium battery production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of lithium battery production, in particular to a pole piece pre-lithiation production line. Background technique [0002] At present, during the first charge and discharge process of graphite anode materials, there is an irreversible lithium loss of 5% to 10%, and during the first charge and discharge process of high-capacity silicon anode materials, the irreversible loss of lithium ions reaches 15% to 35%. To ensure the energy density of lithium-ion batteries, the irreversible lithium consumption during the first charge and discharge process needs to be replenished in advance with the help of lithium supplementation technology. However, the pre-lithium cost of the pole piece is relatively high, resulting in a relatively high production cost of the lithium battery. [0003] In view of this, it is particularly important to design and manufacture a pole piece pre-lithiation production line that can reduce th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/1393H01M4/1395
CPCH01M4/1393H01M4/1395H01M2004/027Y02E60/10
Inventor 吴庆利阳如坤孙崇庚
Owner 溧阳聚阳智能科技有限公司
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