Lithium-ion flexible packaged battery pack structure

Abstract

The invention discloses a lithium-ion flexible packaged battery pack structure which comprises individual lithium ion batteries, plastic clamping plates, heat radiating plates as well as current collection copper poles, current collection covers, an upper cover and a lower cover plate, wherein the current collection copper poles are arranged on the outer sides of two opposite side surfaces respectively; the current collection covers cover the current collection copper poles; the upper cover plate and the lower cover plate are arranged at the top end and the bottom end respectively, and a plurality of repetition units which are formed by the individual lithium ion batteries, the plastic clamping plates and the heat radiating plates are arranged between the upper cover plate and the lower cover plate; the side edges, corresponding to the current collection copper poles, of the individual lithium ion batteries are respectively provided with positive tabs and negative tabs, which are symmetric to each other; the plastic clamping plates and the individual lithium ion batteries are arranged at intervals sequentially, a galvanized copper block is arranged in each of two side surfaces of a frame of each plastic clamping plate, the inner sides of the galvanized copper blocks are connected with the tabs, the outer sides of the galvanized copper blocks are connected with the current collection copper poles through screws, and the heat radiating plates are respectively clamped between each individual lithium ion battery and each plastic clamping plate. The lithium-ion flexible packaged battery pack structure is high in energy density, strong in heat radiation capacity, high in safety, good in reliability and convenient to install and dismount.

Description

technical field [0001] The invention relates to a lithium ion battery pack structure, in particular to a lithium ion soft package battery pack structure. Background technique [0002] Due to the high energy density and safety performance of flexible packaging lithium-ion batteries, the application occasions are becoming more and more extensive. At present, in the field of power batteries and energy storage, the design of flexible packaging series-parallel modules is mostly simply welded together, without good packaging and difficult At the same time, this structure is also easy to cause problems such as short circuit and excessive contact resistance in terms of safety. Therefore, for large-scale application in the power and energy storage markets, it is necessary to improve the structure of flexible packaging lithium-ion batteries. Contents of the invention [0003] The purpose of the present invention is to provide a flexible packaging structure for large-scale lithium-i...

AI Technical Summary

Problems solved by technology

[0002] Due to the high energy density and safety performance of flexible packaging lithium-ion batteries, the application occasions are becoming more and more extensive. At present, in the field of power batteries and energy storage, the design of flexible packaging series-parallel modules is mostly simply welded together, without good packaging and difficult At the same time, this structure is also easy to cause problems such as short circuit and excessive contact resistance in terms of safety.

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