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
CN104466235BActive Publication Date: 2017-02-22TIANJIN JUYUAN NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN JUYUAN NEW ENERGY TECH CO LTD
Publication Date
2017-02-22

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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.
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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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