勝光科技之燃料電池基礎訓練課程
勝光科技之燃料電池基礎訓練課程
日期：7月27日
出席人員：誌隆 煜宗 協德 宗湧 峻維
講師：志榮學長
主題：DMFC Basic Principle & Current Development Status
Outline
● Energy Need
● Kinds of FC
● Introduction
● Prototype
● Solution
Need
◎ 由於石油即將告磬，急需尋找出替代能源
◎ 其他能源使用所產生的污染，造成地球的污染
◎ 開源節流
◎ 電池效率需提升
期望目標
◎ all day running--------our goal
◎ development hybrid energy
◎ volume/weight/efficient
◎ easily integration
◎ user friendly design
Next generation
◎ no pollution
◎ no charge time
DMFC現階段與Li-ion電池並用，因為Li-ion電池能瞬間產生高電流去推動一般電器剛啟動時所需的高電流，爾後再用DMFC去維持正常工作下所需的電流
Weakness
◎ low peak power
◎ 高價位(現階段)
◎ storage
工作原理
PEMFC
Anode：2H2→4H+ + 4e-
Cathode： O2 + 4H+ + 4e-→2H2O
Overall：2H2 + O2→2H2O +heat
DMFC
Anode：CH3OH + H2O→CO2 + 6H+ + 6e-
Cathode：6H+ + 3/2H2O + 6e-→3H2O
Overall： CH3OH + 3/2O2→CO2 + 2H2O +heat
FC assembly
PEM→FC stack
DMFC→FC planar
Membrane need (PEM)
◎ keep wet(需加濕)
◎ hydration(水合化合)
DMFC is no need to keep wet because the product includes water.
Key factors of DMFC are pressure, temperature, airflow rate, and methanol concentration. And the factors higher gets the better performance.
勝光科技公司他們提供的模組
單電池為0.3V
若3個block提供1.8V 乘上電流1.6A 約可得到3Watt
觸媒
可以加速反應
機制：使用觸媒之反應可降低活化能，使反應可以以較低的能量通過能量屏障，加速反應
anode：Pt-Ru/C(Pt-Ru是為了防止CO與Pt的毒化)
cathode：Pt/C
DMFC Module Solution
◎ PCB Assembly Process
◎ System-on-cell concept
◎ DMFC Module concept
DMFC control system
◎ active：BOP(Balance of Plant) & EMS(電源管理系統)
◎ passive：利用重力及毛細現象
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※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.112.38.246
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