LAPSE

LAPSE:2018.1049
Published Article
LAPSE:2018.1049
Development of Integrally Molded Bipolar Plates for All-Vanadium Redox Flow Batteries
Chih-Hsun Chang, Han-Wen Chou, Ning-Yih Hsu, Yong-Song Chen
November 27, 2018
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.
Keywords
all-vanadium redox flow battery (VRBs), bipolar plate (BP), Energy Storage, injection molding
Subject
Suggested Citation
Chang CH, Chou HW, Hsu NY, Chen YS. Development of Integrally Molded Bipolar Plates for All-Vanadium Redox Flow Batteries. (2018). LAPSE:2018.1049
Author Affiliations
Chang CH: 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
Chou HW: Institute of Nuclear Energy Research, Atomic Energy Council, No. 1000 Wenhua Rd., Jiaan Village, Longtan Township, Taoyuan 32546, Taiwan
Hsu NY: Institute of Nuclear Energy Research, Atomic Energy Council, No. 1000 Wenhua Rd., Jiaan Village, Longtan Township, Taoyuan 32546, Taiwan
Chen YS: 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 [ORCID]
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Journal Name
Energies
Volume
9
Issue
5
Article Number
E350
Year
2016
Publication Date
2016-05-07
Published Version
ISSN
1996-1073
Version Comments
Original Submission
Other Meta
PII: en9050350, Publication Type: Journal Article
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LAPSE:2018.1049
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doi:10.3390/en9050350
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Nov 27, 2018
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CC BY 4.0
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[v1] (Original Submission)
Nov 27, 2018
 
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Nov 27, 2018
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Original Submitter
Calvin Tsay
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