中國首例自主研發超5千小時耐久性燃料電池問世
中國科學院大連化學物理研究所14日對外發布消息稱,由該所持股企業新源動力股份有限公司開發的HYMOD-300型車用燃料電池電堆模塊,經壽命測試和整車應用驗證,突破了車用燃料電池5000小時的耐久性難關,成為中國首例自主研發的超越5000小時耐久性的燃料電池產品。該產品還實現了電堆在-10℃環境下的低溫啟動,以及在-40℃下的儲存。(中新網)
https://www.ettoday.net/news/20180315/1130727.htm
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這表示中國之前研發的燃料電池不到五千小時嘛
燃料電池仰賴觸媒將氫氣分子轉化成水分子來產生電能
理想的觸媒能夠永久作用不失去活性
現實中觸媒耗損就會逐漸缺乏活性邁向壽命的終結(成為電子垃圾)
實驗室都這麼難看了,難道中國燃料電池汽車是一場騙局?
這新聞沒說清楚壽命怎麼算,不過據以下資料大概是10%~20%。
http://km.twenergy.org.tw/ReadFile/?p=KLBase&n=201273124914.doc
另有關燃料電池的壽命,依據美國NREL的汽車示範驗證學習計畫結果,目前的壽命大約1200小時(以電壓下降10%為準);在燃料電池機車的情況,假設消費者仍可容忍部分性能的衰退,因此以每2000小時必須更換燃料電池組來計算。
https://www.nrel.gov/docs/fy08osti/43668.pdf
Fuel cell stack durability is critical to customer acceptance of fuel cell vehicles, and
will be discussed in this paper. Although 2,000-hour durability in 2009 is considered
acceptable to validate progress, a 5,000-hour lifetime (equivalent to approximately
100,000 miles) is estimated to be a requirement for market acceptance. Vehicle range
is also an important consumer expectation. Although many factors contributed to the
failure of battery-electric vehicles to gain market acceptance despite California
government mandates, limited vehicle driving range and long charging times were
widely accepted as significant contributors. Finally, hydrogen production cost is a key
metric because consumers are much less likely to purchase an alternative fuel vehicle
if the fuel is significantly more expensive than gasoline.
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