Development of micro direct methanol fuel cells with high methanol concentration

WANG Lu-wen; ZHANG Yu-feng; HE Hong; ZHAO You-ran; LIU Xiao-wei

doi:10.3788/OPE.20111909.2079

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Development of micro direct methanol fuel cells with high methanol concentration

Article | 更新时间：2020-08-12

- Development of micro direct methanol fuel cells with high methanol concentration
- Optics and Precision Engineering Vol. 19, Issue 9, Pages: 2079-2084(2011)
- 作者机构：
  
  1. 哈尔滨工业大学 MEMS中心,黑龙江哈尔滨,150001
  2. 哈尔滨工业大学微系统与微结构制造教育部重点实验室,黑龙江哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111909.2079
  CLC： TM911.4
- Received：27 October 2010，
  
  Revised：25 January 2011，
  
  Published Online：26 September 2011，
  
  Published：26 September 2011
- 稿件说明：
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王路文, 张宇峰, 何洪, 赵悠然, 刘晓为. 使用高浓度甲醇的微型直接甲醇燃料电池[J]. 光学精密工程, 2011,19(9): 2079-2084

WANG Lu-wen, ZHANG Yu-feng, HE Hong, ZHAO You-ran, LIU Xiao-wei. Development of micro direct methanol fuel cells with high methanol concentration[J]. Editorial Office of Optics and Precision Engineering, 2011,19(9): 2079-2084
王路文, 张宇峰, 何洪, 赵悠然, 刘晓为. 使用高浓度甲醇的微型直接甲醇燃料电池[J]. 光学精密工程, 2011,19(9): 2079-2084 DOI： 10.3788/OPE.20111909.2079.

WANG Lu-wen, ZHANG Yu-feng, HE Hong, ZHAO You-ran, LIU Xiao-wei. Development of micro direct methanol fuel cells with high methanol concentration[J]. Editorial Office of Optics and Precision Engineering, 2011,19(9): 2079-2084 DOI： 10.3788/OPE.20111909.2079.

摘要

以丙烯腈-丁二烯-苯乙烯(ABS)共聚物材料作为流场基体

以不锈钢薄片作为集流板

设计制作了一种新型空气自呼吸式微型直接甲醇燃料电池。采用线切割、激光切割等微加工技术制作集流板

并在集流板表面溅射金作防电蚀处理以降低接触电阻。通过对电池阳极传质的建模仿真以及性能测试发现

与传统微型DMFC的阳极结构相比

该阳极结构有效地提高了甲醇传质阻力

减小了甲醇渗透

更适于应用高浓度甲醇燃料。稳定性测试显示该微型DMFC在较高浓度(7 mol/L)和很小流速(0.1 ml/min)下可以稳定工作

满足了便携式电源对高能量密度的需求。该电池还具有轻质、可批量化生产等优点

便于便携式电源的进一步推广和应用。

Abstract

A novel air-breathing micro Direct Methanol Fuel Cell (DMFC) was designed and fabricated by taking Acrylonitrile-Butadiene-Styrene(ABS) as a basic material and the stainless steel plate as a current collector.The current collector was fabricated by using micro wire cutting and laser cutting technologies

and its surface was sputterd onto a layer of Au to avoid the electrochemistry corrosion and to reduce the contact resistance. Methanol transport was analysed by the anode model of micro DMFC and then the micro-DMFC was tested at different operating parameters. By comparing with the conventional structure

both results show that the novel anode structure is more suitable for the application of high methanol concentration because of high resistance to methanol transportation and low methanol crossover. It is revealed that this micro-DMFC can work steadily at a high methanol concentration of 7 mol/L and a slow velocity of 0.1 ml/min and it is also meaningful for the future applications due to the advantages of low weights and mass productions.

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references

刘晓为,张博,张宇峰,等. MEMS微型燃料电池[J]. 化学进展,2009,21(9):1980-1986. LIU X W, ZHANG B, ZHANG Y F, et al.. MEMS-based micro fuel cells [J]. Progress in Chemistry, 2009, 21(9):1980-1986. (in Chinese)[2] LU G Q, WANG C Y, YEN T J, et al..Development and characterization of a silicon-based micro direct methanol fuel cell[J].Electrochimica Acta, 2004, 49:821-828.[3] ZHONG L Y, WANG X H, JIANG Y Q, et al..A micro-direct methanol fuel cell stack with optimized design and microfabrication[J].Sensors and Actuators A, 2008, 143:70-76.[4] TORRES N, SANTANDER J, ESQUIVEL J P, et al..Performance optimization of a passive silicon-based micro-direct methanol full cell[J].Sensors and Actuators B, 2008, 132:540-544.[5] ZHU Y L, LIANG J SH, LIU CH, et al.. Development of a passive direct methanol fuel cell(DMFC) twin-stack for long-term operation[J]. Journal of Power Sources, 2009,132:540-544.[6] TANG X C, ZHANG Y F, YUAN Z Y, et al.. Micro direct methanol fuel cells based on silicon and non-silicon MEMS technologies [J]. Opt. Precision Eng., 2009, 17(6):1218-1222.[7] 刘冲,吴成百,张文涛,等. 微小型燃料电池测试系统的气体流量控制[J]. 光学精密工程,2008,16(3):459-466. LIU CH, WU CH B, ZHANG W T, et al.. Gas flux control of testing system for micro/miniature fuel cell [J]. Opt. Precision Eng., 2008, 16(3):459-466.(in Chinese)[8] WONG C W, ZHAO T S, YE Q, et al.. Experimental investigations of the anode flow field of a micro direct methanol fuel cell [J]. Journal of Power Sources, 2006, 155:291-296.[9] LIU J G, ZHAO T S, CHEN R, et al.. The effect of methanol concentration on the performance of a passive DMFC[J]. Electrochemistry Communications, 2005,7: 288-294.[10] YILDIRIM M H, SCHEARZ A, STAMATIALIS D F, et al.. Impregnated membranes for direct methanol fuel cells at high methanol concentrations [J]. Journal of Membrane Science, 2009, 328:127-133.[11] GUO Z, CAO Y. A passive fuel delivery system for portable direct methanol fuel cells[J]. Journal of Power Sources, 2004, 132:86-91.[12] KIM H K. Passive direct methanol fuel cells fed with methanol vapor[J]. Journal of Power Sources, 2006, 162:1232-1235.

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