Single coiled core, lithium battery with single coiled core and continuous coiling method for single coiled core

A technology for single winding core and lithium battery, which is applied in the field of single winding core, lithium battery with single winding core and continuous winding of single winding core, which can solve the problems of complicated procedures, inability to produce high rate discharge, and inflation

Inactive Publication Date: 2014-02-19
DIJIYA ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, the way of winding with a single winding core is only to set a single positive tab on the positive sheet and a single negative tab on the negative sheet, and cannot produce the effect of high-rate discharge
In order to improve the above-menti

Method used

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  • Single coiled core, lithium battery with single coiled core and continuous coiling method for single coiled core
  • Single coiled core, lithium battery with single coiled core and continuous coiling method for single coiled core
  • Single coiled core, lithium battery with single coiled core and continuous coiling method for single coiled core

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Embodiment Construction

[0031] see figure 1 , 2 As shown, it is a preferred embodiment of the single winding core 1 of the present invention, including a strip-shaped positive electrode sheet 2, a strip-shaped negative electrode sheet 3, a first separator 4 and a second separator 4'.

[0032] The positive electrode sheet 2 is preferably made of aluminum metal, and most of the lower end regions of the positive and negative surfaces of the positive electrode sheet 2 form the positive electrode region 21. The positive electrode region 21 is the surface of the positive electrode sheet 2 coated with a layer of mixed positive electrode material, conductive The positive electrode slurry of the agent, the binder and the solvent is formed after the positive electrode slurry is dried and rolled. One side of the positive electrode sheet 2 in the longitudinal direction, that is, the upper end region of the positive electrode sheet 2 is provided with a plurality of equally spaced positive electrode tabs 22 exten...

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Abstract

The invention discloses a single coiled core, a lithium battery with the single coiled core and a continuous coiling method for the single coiled core. A positive zone on the surface of a positive plate of the single coiled core corresponds to a negative zone on the surface of a negative plate of the single coiled core; one side of the positive plate is provided with a plurality of positive tabs, and one side of the negative plate is provided with a plurality of negative tabs; the plurality of negative tabs and the plurality of positive tabs are staggerly arranged, so the plurality of positive tabs gather and form a positive tab group and the plurality of negative tabs gather and form a negative tab group after successive lamination and continuous coiling of the positive plate, a first isolation membrane, the negative plate and a second isolation membrane, and thus, the single coiled core has high current discharging capability; when the single coiled core is arranged in the shell of the lithium battery, assembling is facilitated, and conductive performance is improved.

Description

technical field [0001] The invention relates to a single winding core, a lithium battery with a single winding core and a continuous winding method for a single winding core, especially a method capable of enabling a single winding core to have a large current discharge capability and enabling a single winding core The lithium battery can be assembled conveniently when the single winding core is combined in the casing, and the conductivity can be improved. Background technique [0002] At present, the winding core of lithium batteries mainly adopts two assembly methods: lamination or winding. Among them, the winding assembly method is to wrap the positive electrode sheet on the negative electrode sheet to form the negative electrode tab at one end of the negative electrode sheet at the edge of the winding core. , the positive tab of the positive plate is located in the single winding core in the center of the winding core. And because the positive pole tab is located at the...

Claims

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Application Information

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IPC IPC(8): H01M10/0583H01M6/14
CPCH01M6/005H01M6/14H01M10/052H01M10/0583H01M50/54Y02E60/10Y02P70/50
Inventor 黄文弘
Owner DIJIYA ENERGY SAVING TECH
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