Square lithium battery lamination machine and lamination technology

A lithium battery and stacking machine technology, which is applied in the direction of secondary batteries, circuits, electrical components, etc., can solve the problems of large impact on the charging and discharging performance of the battery cell, inconsistent tension of the winding layer, wrinkles, etc., and achieve product consistency Good, good consistency, and improved efficiency
CN106532134AActive Publication Date: 2017-03-22蜂巢能源(武汉)有限公司
4 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
蜂巢能源(武汉)有限公司
Publication Date
2017-03-22

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a square lithium battery lamination machine and a lamination technology used for solving the problem of a poor lamination effect in the prior art. The square lithium battery lamination machine comprises a first diaphragm release mechanism, a first positive plate release part, a second diaphragm release mechanism, a first negative plate release part, a third diaphragm release mechanism, a positive plate heat sealing part, a folding part, a second negative plate release part, a second positive plate release part and an arrangement part which are sequentially arranged from an initializing end to a terminating end, wherein main plates of positive plates and negative plates superpose and electrode parts do not superpose, and the positive plates and the negative plates are fixed between three diaphragms and discontinuously and uniformly distributed to form a diaphragm strip; and a laminated sheet is finally formed through folding. By adopting a Z-shaped folding mode, the winding stress is avoided, the product uniformity is good, an assembly operation mode is better in uniformity than a traditional lamination mode, and by adopting double-layer heat sealing, the efficiency is high.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of lithium battery lamination production, in particular to a square lithium battery lamination machine and lamination process. Background technique

[0002] Soft-pack batteries (also known as "polymer batteries") are widely used in some small digital products.

[0003] The structure of the current soft-packed battery includes two types: laminated structure and wound structure.

[0004] In the common laminated structure, the positive electrode sheet, diaphragm, and negative electrode sheet are superimposed and formed, and the diaphragm is disconnected. In the laminated structure of this structure, the diaphragm is usually cut into a sheet slightly larger than the electrode sheet. Then stack them layer by layer. There is a problem that lithium ions bypass the diaphragm around the diaphragm, which has a great impact on the charge and discharge performance of the battery cell.

[0005] In the common winding st...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More