Detachable polymer lithium ion battery and assembling method thereof

A lithium-ion battery and polymer technology, applied in the field of lithium-ion batteries, can solve the problems of inability to maximize the battery capacity density and occupy a large space, and achieve the effect of compact structure, low cost and reliable structure of the battery

Active Publication Date: 2015-03-25
TIANJIN JUYUAN NEW ENERGY TECH CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

like figure 1 As shown, in the prior art, the packaging structure of this type of battery is that the upper plastic shell 100 and the lower plastic shell 200 are snapped together or ultrasonically welded to form a housing chamber, so that the operation of the package takes up a large space and cannot reach the capacity of the battery. Density maximization

Method used

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  • Detachable polymer lithium ion battery and assembling method thereof
  • Detachable polymer lithium ion battery and assembling method thereof
  • Detachable polymer lithium ion battery and assembling method thereof

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] Such as Figure 2-8 As shown, the detachable polymer lithium ion battery of the present invention includes two parallel front polymer lithium ion batteries 5 and a rear polymer lithium ion battery 7, and a 0.1mm thick 0.1 mm battery cell that is fixedly connected and constitutes the battery cell accommodation chamber. An upper stainless steel sheet 1, a lower stainless steel sheet 8 with a thickness of 0.1 mm, a plastic top shell 13 and a plastic bottom shell 6, the upper stainless steel sheet and the lower stainless steel sheet include a sheet-shaped body, the two sides and the bottom of the body are respectively inward The side connection edges 104, 801 for realizing the fix...

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Abstract

The invention discloses a detachable polymer lithium ion battery. The detachable polymer lithium ion battery comprises at least two parallel polymer lithium ion battery cells, and an upper stainless steel sheet, a lower stainless steel sheet, a top shell and a bottom shell which are connected fixedly to form a cell containing cavity, wherein the two sides and the bottoms of the upper stainless steel sheet and the lower stainless steel sheet are inwards bent respectively to form side connection edges and inserting teeth; inserting grooves corresponding to the inserting teeth are formed in the bottom shell; the tops of the upper stainless steel sheet and the lower stainless steel sheet are in injection molding connection with the top shell; and the lap joint parts of the side connection edges on the two sides of the upper stainless steel sheet and the lower stainless steel sheet are welded together. The invention provides a cell packaging structure which has high packaging precision and maximized capacity density and low cost; the two or more than two polymer cells are overlapped and connected in parallel and are welded, and then are welded on a protection plate; and a battery shell packaging structure is combined by a plastic shell and a metal shell and the packaging size is saved, so that the battery packaging structure is more compact.

Description

technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a detachable polymer lithium-ion battery and an assembly method thereof. Background technique [0002] Polymer lithium-ion batteries, due to their higher safety and higher mass energy density, have become more and more popular in the industry and customers. At present, polymer lithium-ion batteries are increasingly being used in a variety of portable mobile devices. For some handheld or portable mobile devices (such as mobile WIFI transmitters), since the ultra-thinness is not required for mobile phones, in order to minimize the size of the device and maximize the battery life of the device, that is, to maximize the battery capacity, the length and width dimensions can be used A battery with a limited thickness and a large size. In order to facilitate the user to replace the battery, this type of battery is often designed as a detachable battery. Due to the large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0525H01M10/058
CPCH01M10/0525H01M10/058Y02E60/10Y02P70/50
Inventor 李相涛张银峰张志强张洪星
Owner TIANJIN JUYUAN NEW ENERGY TECH CO LTD
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