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Soft package shell for lithium battery and soft package lithium battery applying soft package shell

A technology of soft-pack lithium batteries and lithium batteries, applied in applications, battery components, circuits, etc., can solve the problem of increasing the volume and weight of single batteries and battery packs, reducing the capacity density of batteries, and easy deformation of hard shells and other problems, to achieve the effect of increasing safety and reliability, stable shock absorption and anti-extrusion effect, and uniform shock absorption

Pending Publication Date: 2021-02-05
FUJIAN FUSSHIA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the added shell is hard, it will increase the volume and weight of the single battery and the battery pack, and even reduce the capacity density of the battery. Moreover, the hard shell is easily deformed by extrusion, and there are also serious safety hazards.

Method used

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  • Soft package shell for lithium battery and soft package lithium battery applying soft package shell
  • Soft package shell for lithium battery and soft package lithium battery applying soft package shell
  • Soft package shell for lithium battery and soft package lithium battery applying soft package shell

Examples

Experimental program
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Embodiment 1

[0037] Such as Figure 1~3 As shown, in this embodiment, a soft case for a lithium battery that achieves the first objective of the present invention, the shape and size of the soft case match the shape and size of the lithium battery it covers, the The soft casing is made of aluminum-plastic film, and the soft casing 1 is composed of at least three layers of packaging materials including a PP layer 11, an aluminum film layer 12 and a nylon layer 13 from the inside to the outside. The PP layer is the first layer of packaging material 11, The aluminum film layer is the second package 12, and the nylon layer is the third package 13 is the nylon layer. In this embodiment, there are several chambers 2 between the PP layer 11 of the first packaging material and the aluminum film layer 12 of the second packaging material, and gaseous fillers are contained in the chambers 2 . In practical applications, the chamber 2 may be filled with solid fillers or filled with both solid and gase...

Embodiment 2

[0044] The following is attached Figure 4-5 An embodiment of the second objective of the present invention will be described in detail.

[0045] A soft package lithium battery using a soft package case, comprising a lithium battery core and a soft package case, characterized in that: the soft package case 1 is the soft package of the lithium battery described in the technical solution of the first object of the present invention Shell, the soft case 1 is coated on the outside of the lithium battery core 3, the shape and size of the soft case 1 match the shape and size of the lithium battery 3 it covers, and the electrodes of the lithium battery core extend Out of the soft case 1 . In this embodiment, the soft casing is Figure 1-3 In the shown soft casing, the soft casing 1 is composed of three layers of packaging 11, 12, 13, the first layer of packaging 11 is a PP layer, the second packaging 12 is an aluminum film layer, The third layer of packaging 13 is a nylon layer, a...

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Abstract

The invention provides a soft package shell for a lithium battery and a soft package lithium battery / pack applying the soft package shell. The shell is characterized in that the shape and the size ofthe soft package shell are matched with those of the lithium battery coated with the soft package shell, the soft package shell is composed of at least two layers of wrappage such as an aluminum plastic film, and each layer of wrappage has ductility; a plurality of cavities are formed between at least two adjacent layers of packing materials, gaseous or solid fillers or combinations thereof are arranged in the cavities, and the soft package shell has the advantages of being simple in structure, novel in thought, convenient to install and the like, and has wide application prospects in the aspects of lithium battery packing and protection.

Description

technical field [0001] The invention relates to a casing for a lithium battery and the lithium battery thereof, in particular to a soft-pack casing for the lithium battery and a soft-pack lithium battery using the same. Background technique [0002] With the introduction of the concept of green energy and the development of lithium battery technology, the application of lithium batteries is becoming more and more extensive. According to the different shell materials, lithium batteries are generally divided into two types: soft shell and hard shell. In order to ensure the use and transportation safety of lithium batteries, lithium batteries cannot be subjected to strong extrusion during use and transportation, so shock absorption is required to prevent danger caused by extrusion or vibration. Different from the hard-shell lithium battery, the soft-shell lithium battery is usually made of a soft outer packaging material, such as the existing common aluminum-plastic film, so it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/129B32B3/30B32B15/085B32B15/088B32B15/20B32B33/00
CPCB32B15/085B32B15/088B32B15/20B32B3/30B32B33/00B32B2307/56B32B2307/3065B32B2457/00
Inventor 徐韬陈健朱良焱朱家国
Owner FUJIAN FUSSHIA TECH CO LTD