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cell ageing SEI

 



before the Lithium battery can be used, cell ageing must be done, which takes 10 to 12 days


Lifetime degradation:

美國能源部的一種強大 X 光分析儀，觀測鋰電池充放電過程後，發現在電解液裡的氫分子，會慢慢的與電池陰極的脫鋰氧化物起反應，氫分子占據了鋰離子的位置，讓鋰離子無法回到陰極，而造成電池衰退。


也就是說在這段感情裡，變心的不是外出工作的鋰離子，而是原本在等待鋰離子回來的陰極材料（磷酸鐵、鎳鈷錳這些金屬），和碳酸酯電解液中的氫分子在一起了。或許大家之前都錯怪了鋰離子，而沒有看見真正的元兇是氫分子。

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