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Method for electric shock synthesis of graphite bipolar plate of fuel battery

A fuel cell and synthesis method technology, which is applied to fuel cell parts, fuel cells, battery electrodes, etc., can solve the problems of complex processing, high cost, time-consuming and expensive materials, etc., so as to simplify the processing technology and improve the production efficiency. , the effect of reducing production costs

Inactive Publication Date: 2011-02-16
江苏乾景新能源产业技术研究院有限公司
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Problems solved by technology

The synthesis method of the bipolar plate is complex, time-consuming and material-consuming, and the cost is extremely high

Method used

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  • Method for electric shock synthesis of graphite bipolar plate of fuel battery
  • Method for electric shock synthesis of graphite bipolar plate of fuel battery
  • Method for electric shock synthesis of graphite bipolar plate of fuel battery

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Embodiment Construction

[0014] The electric shock synthesis method of fuel cell graphite bipolar plate of the present invention comprises the following steps,

[0015] Step 1. According to the design requirements of the fuel cell graphite bipolar plate size, the flexible graphite material is cut into shape, and the size of the cut and formed flexible graphite plate matches the bipolar plate;

[0016] Step 2, according to the design requirements of the fuel cell graphite bipolar plate geometry, make a die, the geometry of the die is consistent with the geometry of the fuel cell graphite bipolar plate;

[0017] Step 3. Put the flexible graphite plate produced in step 1 into the punching machine for stamping, and form the geometric figure required by the design on the front and back sides of the flexible graphite plate. Due to the use of flexible graphite plate, the die of the punching machine forms a geometric figure on the flexible graphite plate become possible;

[0018] Step 4. Use breathable graph...

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Abstract

The invention discloses a method for electric shock synthesis of a graphite bipolar plate of a fuel battery, which comprises the following steps: firstly, cutting and forming a flexible graphite material according to the size of the bipolar plate to manufacture a punch die, wherein the geometric drawing of a base plate of the punch die is in accordance with that of the bipolar plate; secondly, putting the flexible graphite plate into a dieing machine to perform stamping so as to form the geometric drawing meeting the requirement; thirdly, adopting a breathable graphite material to position and assemble a plurality of the flexible graphite plates manufactured with different geometric drawings; and fourthly, performing one time of electric shock on the assembled multi-layer flexible graphite plate and the breathable graphite material to obtain the graphite bipolar plate of the fuel battery through a transient short-circuit method under the conditions of the preset voltage, current, pressure and time. The method simplifies the processing technique of the bipolar plate, improves the production efficiency, and greatly reduces the production cost.

Description

technical field [0001] The invention relates to an electroshock synthesis method of a fuel cell graphite bipolar plate. Background technique [0002] Graphite is a good thermal conductivity and thermal insulation material, widely used in electric furnace and battery production. Graphite bipolar plates for fuel cells are synthesized by electroshock using multilayer graphite materials. Such as figure 1 As shown, before the graphite plate 1 is made into a fuel cell graphite bipolar plate, complex geometric figures 2 need to be designed on the front and back sides of the graphite plate 1. The complex geometric figures 2 are usually formed by mechanical engraving. After the geometric figures 2 according to the design requirements are formed on the opposite sides, the bipolar plate is synthesized by electric shock of multi-layer graphite material. The synthesis method of the bipolar plate is complex in processing, time-consuming and material-consuming, and extremely costly. C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/88H01M8/02H01M8/0234H01M8/0245
CPCY02E60/50Y02P70/50
Inventor 王伯荣
Owner 江苏乾景新能源产业技术研究院有限公司
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