Elimination of irreversible effects during first charging of lithium battery anodes
Surface Engineering and Applied Electrochemistry(2017)
摘要
The irreversible capacity of negative electrode in a lithium-ion cell is a widely described the phenomenon. Irreversible capacity losses are connected with formation of a solid electrolyte interface layer. This layer is growing on the electrode-electrolyte interface during first several charging cycles. The layer is indispensable for proper functioning of a lithium-ion cell. However, during this layer formation, the atoms of lithium are consumed in a range from 18 to 45% of the total amount of lithium atoms presented in cell. Demonstration of possibilities to suppress this phenomenon that occurs on a negative electrode interface is the main aim of this paper.
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关键词
graphite, negative electrode, capacity, irreversible, lithiation, solid electrolyte interface layer, ratecapability test
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