Low cost batteries are required in order to advance towards smart electric
grids that integrate discontinuous energy flow from renewable sources such as solar energy
and wind power. For these specific applications, moving beyond lithium batteries
to sodium is an advantageous step that offers cost-effectiveness being sodium, unlike
lithium, one of the more abundant elements on Earth. This paper gives a rapid glimpse at
sodium-ion batteries emphasizing their peculiarities compared to lithium-ion batteries
and analyzing some recent studies in the field.
Keywords: Sodium-ion batteries, sodium-ion intercalation chemistry, carbonaceous electrodes, graphitic
electrodes, free-standing, binder-free electrodes.
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