看到原文下面的推文有點想法想討論看看XD
原本30%電到外面只剩5%,回室內又跑回30%,
稍微懂一些半導體的人可以用能帶圖來想,
不過有鑑於大家可能都不是理工背景的,我還是用水庫舉例吧XD
水庫能用到的水其實是水位高過出水口的水,
所以"高過出水口的水"="能用的水量" (電量也是同樣道理)
而電池所含能量會與載子溫度有關(E=kT),
(用化學的角度來講可能是說活性吧?不是很懂化學orz)
所以溫度過低時,蓄水的水位就會降低,能用水量自然就少(掉到5%)
而回到室溫時,載子溫度提高水位提升,能用的水量就恢復到30%。
所以這種情形看到的電量損耗不是由於化學能損耗造成的,
純粹是載子溫度(活性)降低所造成,所以溫度一恢復電量就會恢復~
其實現在也有一些電池廠商在努力做類似降低出水口水位的開發,
這樣一來同樣的水位(電位)可以讓可用的水量(電量)提升,
提出一點想法給大家參考參考,專業人士請鞭小力一點orz
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