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Development of Integrally Molded Bipolar Plates for All-Vanadium Redox Flow Batteries

Author

Listed:
  • Chih-Hsun Chang

    (Advanced Institute of Manufacturing with High-tech Innovations and Department of Mechanical Engineering, National Chung Cheng University, No. 168, University Rd., Minhsiung Township, Chiayi 62102, Taiwan)

  • Han-Wen Chou

    (Institute of Nuclear Energy Research, Atomic Energy Council, No. 1000 Wenhua Rd., Jiaan Village, Longtan Township, Taoyuan 32546, Taiwan)

  • Ning-Yih Hsu

    (Institute of Nuclear Energy Research, Atomic Energy Council, No. 1000 Wenhua Rd., Jiaan Village, Longtan Township, Taoyuan 32546, Taiwan)

  • Yong-Song Chen

    (Advanced Institute of Manufacturing with High-tech Innovations and Department of Mechanical Engineering, National Chung Cheng University, No. 168, University Rd., Minhsiung Township, Chiayi 62102, Taiwan)

Abstract

All-vanadium redox flow batteries (VRBs) are potential energy storage systems for renewable power sources because of their flexible design, deep discharge capacity, quick response time, and long cycle life. To minimize the energy loss due to the shunt current, in a traditional design, a flow field is machined on two electrically insulated frames with a graphite plate in between. A traditional bipolar plate (BP) of a VRB consists of many components, and thus, the assembly process is time consuming. In this study, an integrally molded BP is designed and fabricated to minimize the manufacturing cost. First, the effects of the mold design and injection parameters on frame formability were analyzed by simulation. Second, a new graphite plate design for integral molding was proposed, and finally, two integrally molded BPs were fabricated and compared. Results show that gate position significantly affects air traps and the maximum volume shrinkage occurs at the corners of a BP. The volume shrinkage can be reduced using a large graphite plate embedded within the frame.

Suggested Citation

  • Chih-Hsun Chang & Han-Wen Chou & Ning-Yih Hsu & Yong-Song Chen, 2016. "Development of Integrally Molded Bipolar Plates for All-Vanadium Redox Flow Batteries," Energies, MDPI, vol. 9(5), pages 1-10, May.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:5:p:350-:d:69652
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    Citations

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    Cited by:

    1. Al-Yasiri, Mohammed & Park, Jonghyun, 2018. "A novel cell design of vanadium redox flow batteries for enhancing energy and power performance," Applied Energy, Elsevier, vol. 222(C), pages 530-539.
    2. Snigdha Saha & Kranthi Kumar Maniam & Shiladitya Paul & Venkata Suresh Patnaikuni, 2023. "Hydrodynamic and Electrochemical Analysis of Compression and Flow Field Designs in Vanadium Redox Flow Batteries," Energies, MDPI, vol. 16(17), pages 1-33, August.
    3. Guarnieri, Massimo & Trovò, Andrea & D'Anzi, Angelo & Alotto, Piergiorgio, 2018. "Developing vanadium redox flow technology on a 9-kW 26-kWh industrial scale test facility: Design review and early experiments," Applied Energy, Elsevier, vol. 230(C), pages 1425-1434.
    4. Chin-Lung Hsieh & Po-Hong Tsai & Ning-Yih Hsu & Yong-Song Chen, 2019. "Effect of Compression Ratio of Graphite Felts on the Performance of an All-Vanadium Redox Flow Battery," Energies, MDPI, vol. 12(2), pages 1-11, January.

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