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Bipolar plate with mosquito incense type flow field distribution structure

A flow field distribution, bipolar plate technology, applied in structural parts, battery electrodes, electrical components, etc., can solve problems such as restricting battery performance and uneven distribution, and achieve a wide range of applications, high utilization, and improved stability. Effect

Inactive Publication Date: 2011-06-22
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the uneven distribution of the existing bipolar plate flow field structure and the shortage of battery performance, the present invention provides a bipolar plate with a mosquito-repellent incense flow field distribution structure that distributes evenly and effectively improves battery performance.

Method used

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  • Bipolar plate with mosquito incense type flow field distribution structure
  • Bipolar plate with mosquito incense type flow field distribution structure
  • Bipolar plate with mosquito incense type flow field distribution structure

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] refer to Figure 1 ~ Figure 3 , a bipolar plate with a mosquito coil type flow field distribution structure, comprising a bipolar plate body 1, the bipolar plate body 1 is provided with a fuel and oxidant gas inlet 3 and an exhaust gas outlet 4, and the bipolar plate body 1 is cylindrical body, the surface of the cylinder is provided with an annular flow channel, and the annular flow channel includes multiple layers of mutually isolated annular flow channel units 2 arranged from the center to the outer ring, and the fuel and oxidant gas inlet 3 is connected to each annular flow channel. The inlets of the channel units 2 are connected, the outlets of each annular flow channel unit 2 are connected with the exhaust gas outlet 4, and the fuel and oxidant gas inlet 3 and the exhaust gas outlet 4 are radially arranged.

[0021] A partition is provided between the fue...

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PUM

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Abstract

The invention relates to a bipolar plate with a mosquito incense type flow field distribution structure, comprising a bipolar plate body, the bipolar plate body is provided with a fuel and oxidant gas inlet and a tail gas outlet and in the shape of a cylinder; the surface of the cylinder is provided with an annular flow channel; the annular flow channel comprises multiple layers of annular flow channel units which are arranged from a circle center to an outer circle and mutually separated; the fuel and oxidant gas inlet is communicated with inlets of the annular flow channel units; the outlets of the annular flow channel units are communicated with the tail gas outlet; and the fuel and oxidant gas inlet and the tail gas outlet are radially arranged. The bipolar plate with the mosquito incense type flow field distribution structure has uniform distribution and effectively enhances the battery performance.

Description

technical field [0001] The invention relates to the technical field of proton exchange membrane fuel cells, in particular to a bipolar plate. Background technique [0002] Material battery is a device that directly converts chemical energy into electrical energy. It is not limited by the Carnot cycle, has a high energy conversion rate, and has no pollution to the environment. It is considered to be a clean energy source in the future. A proton exchange membrane fuel cell (PEMFC) body is composed of several battery cells, and a battery cell is mainly composed of membrane electrodes (cathode, proton exchange membrane and anode) and bipolar plates. The bipolar plate is one of the key components for connecting PEMFC single cells in series to form a battery stack. Therefore, whether the flow channel structure of the bipolar plate is reasonable or not directly affects the life and performance of the battery, which is a problem that cannot be ignored in fuel cells. A reasonable fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/86
CPCY02E60/50
Inventor 鲁聪达文东辉姜少飞王晶晶柴国钟
Owner ZHEJIANG UNIV OF TECH
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