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Winding type high-voltage battery

A high-voltage, winding-type technology, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as affecting applications and increasing battery volume, avoiding pole fragmentation or powder drop, achieving large capacity, and overcoming stacking. the effect of winding

Inactive Publication Date: 2017-03-08
NANTONG NINGYUAN AUTOMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the volume of the whole battery has increased a lot, which affects the application in some occasions, so it is necessary to provide a winding high-voltage battery

Method used

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  • Winding type high-voltage battery

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Embodiment Construction

[0017] refer to figure 1 , a winding high-voltage battery of the present invention, including a winding plate 1, a pole piece 2, a separator 3 and a winding core 4, and the winding high-voltage battery is a superposition combination of two winding cores 4, and the winding core 4 includes a coiled plate 1 and a pole piece 2, the two ends of the pole piece 2 are respectively wrapped in the outer circumference of the two coiled plates 1 in a reverse spiral shape, and the outer wall of the pole piece 2 is covered with a diaphragm 3. The winding method of the winding core 4 is as follows: the winding plate 1 winds several turns in reverse around the two ends of the pole piece 2 until the end faces of the two winding cores 4 on different sides are attached to both sides of the same section of the pole piece 2 , the winding numbers of the two winding cores 4 are the same. The two ends of the pole piece 2 are flush with the ends of the coiled plate 1 . The cross-section of the folde...

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Abstract

The invention discloses a winding type high-voltage battery, which comprises winding plates, electrode plates, diaphragms and winding cores, wherein the winding type high-voltage battery is an overlapping combination of two winding cores; each winding core comprises one winding plate and one electrode plate; the two ends of each electrode plate are in a reverse vortex shape and respectively cover the outer peripheries of the two winding plates; the diaphragms cover the outer walls of the electrode plates. A two-end reverse winding method is used; the two winding cores are jointly made into one winding core, so that the electrode plate fracture or powder falling can be avoided; the defect of overlapping winding is overcome; the goal of increasing the electrode plate length is achieved; the high capacity of the battery is realized.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of batteries, in particular to the technical field of winding high-voltage batteries. [0003] 【Background technique】 [0004] Invention patent application number 2014200933038 (a high-voltage large-capacity lithium battery) proposes a large-capacity battery. This patent adopts a Z-shaped stacking method, which greatly extends the length of the pole piece and increases the area of ​​the pole piece, thereby achieving To achieve the purpose of large battery capacity. However, because the battery production process requires the positive and negative electrodes to be attached very tightly to ensure the battery’s charge and discharge performance, the stacked cells need to use a hot pressing process to ensure the normal contact of the positive and negative electrodes, but after hot pressing, the final The inner layer is quite folded 180 degrees, which may cause breakage or powder drop. Although we can us...

Claims

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Application Information

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IPC IPC(8): H01M10/0587
CPCH01M10/0587Y02E60/10Y02P70/50
Inventor 徐敖奎
Owner NANTONG NINGYUAN AUTOMATION TECH
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