Presentation is loading. Please wait.

Presentation is loading. Please wait.

1 Preparation of Electrical Conductive ABS Composite for Bipolar Plates in PEM Fuel Cell Dr. Jatrawan Phumchusak And Miss. Somruthai Tunma.

Similar presentations


Presentation on theme: "1 Preparation of Electrical Conductive ABS Composite for Bipolar Plates in PEM Fuel Cell Dr. Jatrawan Phumchusak And Miss. Somruthai Tunma."— Presentation transcript:

1 1 Preparation of Electrical Conductive ABS Composite for Bipolar Plates in PEM Fuel Cell Dr. Jatrawan Phumchusak And Miss. Somruthai Tunma

2 2 Aim to prepare the electrical conductive polymer composite bipolar plate in order to reduce the manufacturing cost of PEMFC

3 3 Introduction : Polymer Electrolyte Membrane Fuel Cell ; PEMFC clean and potential energy sorce high production cost

4 4 Mass distribution in a 33 kW PEMFC stacks :

5 5 Bipolar Plate :

6 6 Classification of materials for BPs used in PEM fuel cell :  Non-metal: Non-porous graphite plates  Metals: Metal plates  Composites: - Metal based - Carbon based : - Thermoplastics - Thermosets

7 7 Requirements for Bipolar Plates :  Electrical conductivity : - DOE (the U.S.Department of Energy) > 100 S/cm - F.N.Büchi ≥ 10 S/cm (Development of a Bipolar Element for PE- fuel cell, demonstration in a 6 kW stack) - B.W.Choi ≥ 2.5 S/cm (higher than gas diffusion electrode) (J.Hydrogen energy 21 (1996))

8 8 The BPs have the following functions to perform : - To distribute the fuel and oxidant within the cell. - To facilitate water management within the cell. - To separate individual cells in the stack. - To carry current away from the cell. - To facilitate heat management.

9 9 Properties of BP :  Electrical conductivity : plate resistance  0.01 cm 2  Thermal conductivity : as high as possible  Hydrogen/gas permeability :  cm 3 /scm 2  Corrosion resistance : corrosion rate  mA/cm 2  Compressive strength :  22 lb/in 2  Density :  5 gm/cm 2

10 10 Bipolar plate :

11 11 Bipolar plate :

12 12 Methodology : 2-rolls mixer Hot pressing machine ABS matrix Graphite powder Carbon black powder Carbon fiber Measure the in-plane electrical resistance by using the digital multimeter

13 13 Result: ABS– Graphite Composites Conducti vity,  S/cm 60 :  :  :  : Tab l e 1,2 : Electrical properties of ABS - Graphite composites. Note : pure graphite ABS– Graphite Composites Conducti vity,  S/cm 60 :  :  :  : : : Note : mixed graphite

14 14 Result : ABS : CB : G Conducti vity,  S/cm 25 : 5 : : 10 : : 20 : Table 3 : Electrical properties of carbonaceous fillers - ABS composites. Note : CB – Carbon black, G - Graphite

15 15 Table 4 : ABS: CF : G Composites Conductivity,  S/cm ABS : CF 1 : G 40 : 20 : ABS : CF 2 : G 40 : 20 : CF1 length = 3 mm - CF2 length = 5 mm - The effect of CF length : longer CF higher conductivity

16 16 Discussion and Conclusion : - Add carbon fiber to improve the conductivity of ABS composites. - The effect of content and composition of fillers and the incorporation of fillers including the length of carbon fiber on the electrical properties of polymer composite were studied.

17 17 References: (1) A. Hermann, T. Chaudhuri and P. Spagnol (2005), “Bipolar plates for PEM fuel cells : A review”, International Journal of Hydrogen Energy, 30, (2) H-C. Kuan, C-C. M. Ma, K. H. Chen and S-M. Chen (2004), “Preparation, electrical, mechanical and thermal properties of composite bipolar plate for a fuel cell”, Journal of Power Sources, 134, (3) W. Thongruang, R. J. Spontak and C. M. Balik (2002), “Bridged double percolation in conductive polymer composites: an electrical conductivity, morphology and mechanical property study”, Polymer, 43,

18 18 Acknowledgement :  งานวิจัยนี้ ได้รับการสนับสนุนเงินทุน ในการทำวิจัยบางส่วนจากสำนักงาน นโยบายและแผนพลังงาน ( สนพ.) ส่วนอนุรักษ์พลังงานและพลังงาน หมุนเวียน ประเภทงานวิจัยที่เกี่ยวข้อง กับพลังงานทดแทน ปีงบประมาณ 2548


Download ppt "1 Preparation of Electrical Conductive ABS Composite for Bipolar Plates in PEM Fuel Cell Dr. Jatrawan Phumchusak And Miss. Somruthai Tunma."

Similar presentations


Ads by Google