Power supply for portable equipment as well as lithium ion battery of power supply and lithium ion battery package casing

A technology for lithium-ion batteries and packaging shells, applied in battery circuit devices, secondary batteries, circuit devices, etc., can solve problems such as electrolyte leakage, poor sealing performance of outer packaging bags, affecting battery appearance and cycle life, etc. , to achieve the effect of high mechanical hardness, easy replacement and low cost

Inactive Publication Date: 2012-06-13
DONGGUAN AMPEREX TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sealing performance of the outer packaging bag of this structure is not good, and electrolyte leakage sometimes occurs between the PP layer and the stainless steel layer, thereby affecting the appearance and cycle life of the battery

Method used

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  • Power supply for portable equipment as well as lithium ion battery of power supply and lithium ion battery package casing
  • Power supply for portable equipment as well as lithium ion battery of power supply and lithium ion battery package casing
  • Power supply for portable equipment as well as lithium ion battery of power supply and lithium ion battery package casing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The plastic structure layer 12 is made of polyethylene terephthalate (PET). According to the shape and size of the battery core 2, the polyethylene terephthalate is processed into a cavity with a thickness of 30um by injection molding. , and then put the lithium-ion battery 01 into the cavity in a dry room, inject liquid, seal and activate. Then vacuum aluminum plating is performed on the outer surface of the cavity to obtain a vacuum metallization (aluminum) layer 11, the thickness of the aluminum plating is 5um, and the packaging case 1 packaged outside the lithium ion battery 01 is obtained.

[0028] Then, the lug part of the obtained lithium ion battery 01 is welded to the circuit board 3, and then the mechanical buckle 4 is fastened around the lithium ion battery 01 to obtain a power supply for portable equipment. The packaging case 1 of the lithium-ion battery 01 can be directly used as the outer protective case of the portable device.

Embodiment 2

[0030] The difference from Example 1 is that the plastic structure layer 12 is made of polyethylene naphthalate (PEN) with a thickness of 50 um, and the vacuum metallization layer is a vacuum tin-plated layer with a thickness of 6 um.

[0031] The rest are the same as in Embodiment 1, and will not be repeated here.

Embodiment 3

[0033] The difference from Example 1 is that the plastic structure layer 12 is polyphenylene resin (PHB) with a thickness of 90 um, and the vacuum metallization layer is a vacuum tin-plated layer with a thickness of 7 um.

[0034] The rest are the same as in Embodiment 1, and will not be repeated here.

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Abstract

The invention belongs to the technical field of lithium ion batteries and particularly relates to a lithium ion battery package casing. The lithium ion battery package casing is of a two-layer structure, wherein an outer layer of the lithium ion battery package casing is a vacuum-deposited metal layer; and an inner layer of the lithium ion battery package casing is a plastic structure layer. Compared with the prior art, the lithium ion battery package casing disclosed by the invention has the characteristics of high strength, lightness, thinness and low possibility of leaking electrolyte, and can meet special requirements of various kinds of portable equipment for the shape of the battery. Meanwhile, the vacuum-deposited metal layer as the outer layer can also be directly used as a casing of the portable equipment without being additionally processed, so that the production cost is saved. In addition, the invention further discloses a lithium ion battery containing the package casing as well as a power supply adopting the lithium ion battery for the portable equipment.

Description

technical field [0001] The invention belongs to the technical field of lithium-ion batteries, and in particular relates to a lithium-ion battery packaging case, a lithium-ion battery containing the packaging case, and a power supply for portable equipment using the lithium-ion battery. Background technique [0002] At present, lithium-ion batteries are widely used as the power source of portable electronic products. Usually, in order to make the equipment thinner and to make the appearance of the equipment more beautiful, more and more portable equipment choose to use built-in lithium-ion batteries. [0003] The existing built-in lithium-ion batteries generally use aluminum-plastic film as the outer packaging bag. The aluminum-plastic film is generally a three-layer laminated film, and its structure is respectively a polypropylene (PP) layer and an aluminum layer as a metal layer from the inside to the outside. And the nylon layer, and the layers are connected by adhesives. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M10/0525H02J7/00
CPCY02E60/122Y02E60/10
Inventor 陈杰陶涛王涛
Owner DONGGUAN AMPEREX TECH
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