The advantage for new carbon fiber bipolar plate are as follow, low cost, light weight, low contact resistance and good chemical stability.
After process automation, to further reduce costs, enhance quality stability, improve production efficiency, bipolar plates can be achieved mass production.
Bipolar plate manufacturing process is divided into five parts:(1) the unfolding of carbon fiber (2) automation of gluing (3) hot-compression harden (4) cutting of carbon fiber bunch (5) Injection molding of bipolar plates.
Without leakage, tightness test of the carbon fibers must reach a pressure of 0.2 kg/cm2. The contact resistance is lowest when number of carbon fiber has 160 layers, and compressed fiber bunch height of 2mm on the assembly. Anode inlet pressure is 0.1 kg/cm2. Cathode is required to install a fan. And the fan speed has to cooperate with current load.
The quality of carbon fiber bunch will affect the performance of the battery, such as the wide of the rubbers, the flat of the section, Tightness, and numbers of fibers. The structure of the bipolar plate must be considered fuel transfer and number of carbon fibers bunch. Fuel supply and the contact resistance value to achieve a good balance.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0301112-100444 |
| Date | 01 March 2012 |
| Creators | Wang, Jia-ching |
| Contributors | Tseng, Chung-jen, Liu, Chorng-Fuh, Chen, Long-Jeng, Lee, Ming-San |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0301112-100444 |
| Rights | user_define, Copyright information available at source archive |
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