A kind of anti-leakage liquid flow battery and its anti-leakage external packaging method
A liquid flow battery and packaging method technology, which is applied in the direction of fuel cells, sealing/supporting devices, fuel cell parts, etc., can solve the problems of increasing the total weight of the battery, the incomplete sealing of the liquid flow battery, leakage, etc., and achieve weight Lightweight, good sealing performance, and simple process
Active Publication Date: 2020-04-28
乐山创新储能技术研究院有限公司
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is: to provide an anti-leakage flow battery, which solves the problem that the flow battery in the prior art cannot be completely sealed, is prone to leakage, and greatly increases the total weight of the battery
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[0028] Such as figure 1 with 2 As shown, the leakage-proof flow battery provided by the present invention can completely seal the flow battery, prevent leakage, and greatly reduce the total weight of the battery. The anti-leakage flow battery comprises a cuboid liquid flow stack 1 and four outer end plates 2, the sizes of the four outer end plates 2 are respectively matched with the four end faces of the liquid flow stack 1, and each The outer end plates 2 are all welded on the end face of the matched liquid flow stack 1 by infrared welding.
[0029] The anti-leakage flow battery of the present invention has good sealing performance, no leakage, and light weight. figure 1 The middle arrow is the incident direction of infrared wave.
[0030] At the same time, the present invention also provides an anti-leakage outer packaging method for the above-mentioned anti-leakage flow battery, comprising the following steps:
[0031] Step 1. Closely fit the outer end plate and the end...
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Abstract
The invention discloses a leakage-prevention redox flow cell and a leakage-prevention external package method thereof. By the leakage-prevention redox flow cell and the leakage-prevention external package method thereof, the problems that the redox flow cell in the prior art cannot be completely sealed and is easy to leak and the cell is large in total weight are solved. The redox flow cell comprises a cuboid redox flow electric stack and four external end plates, wherein the sizes of the external end plates are respectively matched with four end surfaces of the redox flow cell perpendicular to a unit cell lamination direction, and each external end plate is welded onto a redox flow electric stack end surface matched with the external end plate with infrared ray. According to the leakage-prevention external package method of the leakage-prevention redox flow cell, the external end plates and the corresponding end surfaces of the redox flow electric stack are closely attached and are clamped by a welding fixture, effective attachment and press are performed on the external end plates and the corresponding end surfaces of the redox flow electric stack, infrared welding is employed, and the leakage-prevention redox flow cell is obtained by disassembling the welding fixture after welding is completed. The leakage-prevention redox flow cell is good in sealing performance and light in weight. The leakage-prevention external package method is simple and convenient to operate and has favorable sealing effect, and the weight of the redox flow cell is not increased.
Description
technical field [0001] The invention belongs to the field of flow batteries in electrochemical energy storage, and in particular relates to an anti-leakage flow battery and an anti-leakage external packaging method thereof. Background technique [0002] As a new energy product, the liquid flow battery has the characteristics of high capacity, wide application field, recyclable use and long life. A flow battery assembles a certain number of single cells in series to form a stack in order to obtain the required voltage. The stacking structure of single cells in the stack puts forward higher requirements on its sealing. In the prior art, the flow battery generally uses a rubber gasket with a spring screw, and the gasket and the spring are deformed by applying pressure to complete the fixing and sealing of the battery. However, this sealing method has been found in the long-term implementation process that it cannot achieve a complete sealing effect, and there will always be l...
Claims
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IPC IPC(8): H01M8/0276H01M8/0286
CPCH01M8/0276H01M8/0286Y02E60/50
Inventor 陈继军张庶
Owner 乐山创新储能技术研究院有限公司