Tab die cutting method for inter-coating pole piece

A pole piece, die-cutting technology, applied in the directions of feeding device, positioning device, storage device, etc., can solve the problems of high difficulty in die-cutting process and low die-cutting efficiency, and achieves reduction of dust and burrs, high die-cutting efficiency, high die-cutting efficiency, etc. Simple effect of die cutting method
CN112692152AActive Publication Date: 2021-04-23GUANGDONG YI XINFENG INTELLIGENT EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG YI XINFENG INTELLIGENT EQUIP CO LTD
Publication Date
2021-04-23

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Abstract

The invention relates to the technical field of pole piece die cutting, in particular to a tab die cutting method for an inter-coating pole piece. A material guide assembly used for pulling an inter-coating pole piece roll material, a detection assembly used for detecting the inter-coating position of the inter-coating pole piece, a die cutting assembly used for carrying out die cutting on the inter-coating pole piece introduced by the material guide assembly, and a discharging assembly used for pulling and conveying the die-cut pole piece are involved in the tab die cutting method. According to the tab die cutting method, a large-compaction-density process can be adopted, so that the capacity of a single battery cell is improved; a large-size cutter mechanism is omitted, so that dust and burrs are reduced, the quality of the pole piece is effectively improved, and the safety performance of a battery is improved; and the large-size cutter mechanism is omitted, so that the use cost of equipment is remarkably reduced, thereby greatly reducing the manufacturing cost of a battery cell.
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Description

technical field

[0001] The invention relates to the technical field of pole piece die-cutting, in particular to a tab die-cutting method for an intercoated pole piece. Background technique

[0002] Lithium-ion battery is a new generation of green high-energy battery with excellent performance, and has become one of the focuses of high-tech development. Lithium-ion batteries have the following characteristics: high voltage, high capacity, low consumption, no memory effect, no pollution, small size, small internal resistance, less self-discharge, and more cycles. Because of the above-mentioned characteristics, lithium-ion batteries have been applied to many civilian and military fields such as mobile phones, notebook computers, video cameras, and digital cameras.

[0003] As an important part of the lithium battery, the pole piece plays a vital role in the performance of the battery. The pole piece is made by coating the pole powder material on both sides of the base materia...

Claims

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