Assembly method of detachable polymer lithium ion battery

A technology of a lithium-ion battery and an assembly method, applied in the field of lithium-ion batteries, can solve the problems of large occupied space and inability to maximize battery capacity density, and achieve the effects of low cost, compact battery structure, and package size saving

Active Publication Date: 2017-02-22
TIANJIN JUYUAN NEW ENERGY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • 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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  • Assembly method of detachable polymer lithium ion battery
  • Assembly method of detachable polymer lithium ion battery
  • Assembly method of detachable polymer lithium ion battery

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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, which comprises at least two polymer lithium ion batteries connected in parallel, and an upper stainless steel sheet, a lower stainless steel sheet, a top case and a bottom case which are fixedly connected and form a battery cell accommodation cavity , the two sides and the bottom of the upper stainless steel sheet and the lower stainless steel sheet are respectively bent inwardly to form side connecting edges and pins, and the bottom shell is provided with slots corresponding to the pins, so The tops of the upper stainless steel sheet and the lower stainless steel sheet are respectively connected to the top shell by injection molding, and the overlapping parts of the side connecting edges of the upper stainless steel sheet and the lower stainless steel sheet are welded and connected. The invention provides a cell packaging structure with precise packaging, maximum capacity density and low cost. Two or more polymer cells are stacked and welded in parallel and then welded with a protective plate. The battery casing packaging structure The combination of plastic casing and metal casing is adopted to save the packaging size and make the battery packaging structure 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 Patents(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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