What is the theoretical capacity of Hard Carbon used as anode materials in Na-Ion battery ?

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what is the simplest definition of ion exchange capacity

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Meng Hu

I know the theoretical capcaitiy of graphite is about 370 mAh g-1. the formula is 1/M*26800* n, where M is the molar mass of active material, n is the number of trasfer electrons.

Umair Gulzar

So far the actual mechanism for the sodiation in hard carbon is not well established. However, researcher suggested that first, Na+ ions are inserted between parallel graphene sheets (in the sloping voltage region) . Then, Na+ ions fill the nanopores (in the plateau region) of the disordered carbon structure. The hard carbon prepared by carbonization of glucose have delivered a specific capacity of approximately 300 mA h g-1 with a low operating potential. So I think you can take the same theoratical capacity of graphite to be the theoratical capacity of hardcarbon as there exist graphene layers in hard carbon suggested by researchers.