A kind of manufacturing method of power type flexible packaging lithium ion battery cell

A lithium-ion battery and manufacturing method technology, applied in battery electrodes, secondary batteries, battery pack components and other directions, can solve problems such as low power, and achieve the effects of increasing magnification, increasing power, and simple manufacturing process operations
CN105489825BActive Publication Date: 2018-07-03XIAN SAFTY ENERGY TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAN SAFTY ENERGY TECH
Publication Date
2018-07-03

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Abstract

The invention provides a method for manufacturing a power-type soft-pack lithium-ion battery cell, comprising the following steps: 1. Prepare a positive electrode material roll and a negative electrode material roll; cut to obtain the positive electrode sheet and the negative electrode sheet; the positive electrode sheet is provided with a plurality of positive electrode sheet tabs, and the negative electrode sheet is provided with a plurality of negative electrode sheet tabs; three, the diaphragm, the negative electrode sheet and the positive electrode sheet are laid in a certain order, Obtain the material to be rolled; 4. Wind to obtain the winding core; 5. Weld the positive tab and the negative tab of the battery cell on the winding core, bend and fix it to obtain a power type soft-packaged lithium-ion battery cell. The invention solves the current low-power problem of arc-shaped flexible packaging lithium ions, and also solves the low-power problem of similar batteries, has simple operation and low cost, and is suitable for industrial scale production.
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Description

technical field

[0001] The invention belongs to the technical field of battery materials, and in particular relates to a method for manufacturing a power-type flexible package lithium-ion battery cell. Background technique

[0002] With the development of society, the development of lithium-ion batteries is also changing with each passing day. At present, lithium-ion batteries have a high demand for charging and discharging power in industries such as toys and wearable devices. Compared with conventional model batteries and power batteries, their characteristics are: small size , The charging and discharging power requirements are high; due to the limitation of the battery size, generally when making toys or wearable batteries, they are made in the form of winding, but the winding structure battery is difficult to increase the battery power due to the lack of internal tabs.

[0003] Therefore, in order to meet the power requirements of this type of battery, it is necessary t...

Claims

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