小排氣渦輪引擎沒那麼環保?歐洲車廠被 - 價格
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By Mason
at 2016-10-20T23:56
at 2016-10-20T23:56
Table of Contents
推 JEON: 你在開玩笑嗎 我也是唉鳳四年 電池根本慘不忍睹 半天就沒電10/20 02:43
→ JEON: 大家都有智慧型手機 電池隨著時間到底衰減多少 心裡都有譜吧 10/20 02:45
http://tinyurl.com/jtmpwsx
鋰離子電池(Li-ion battery)是以鋰及其他物質組成的電池。鋰離子電池較輕,能量密
度高達(200+ Wh/kg)[10],輸出功率較高,充放電效率高達80-90%,而自放電較鎳氫細少
,但價格較鎳氫高。但一般手提電腦、手提電話用的鋰離子電池只有數百次的充放電壽命
,即使儲存不使用,隨時間增加容量也會衰減,而且有潛在危險,例如爆炸等[11]。而使
用在純電動車的鋰離子電池有別於上述一般鋰離子電池,大幅改充放電次數、存放壽命等
問題,缺點是是容量較一般鋰電池略小(但仍比鎳氫電池大[12])。
現在適合並已用於純電動車的鋰電池有磷酸鐵鋰電池及鈦酸鋰電池。
磷酸鐵鋰電池,相對一般鋰離子電池,磷酸鐵鋰電池輸功率較大,充電速度較快,但容量
低14%。磷酸鐵鋰電池可有數千次的充放電次數及超過十年的使用期,有的更可以達7000
次以上的充放電週期[13],而且有較佳的化學及熱穩定性,不會爆炸,較為安全。
鈦酸鋰電池,相對一般鋰離子電池,輸出功率較大,較安全[14],充電速度極高,壽命相
當長,但容量有待改進而且成本特別高。
以上,結案。
拿手機電池跟電動車比?
多讀書才不會鬧笑話,不然至少先上網查資料再發言~
--
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