Method of making a carbon composition for an anode
Abstract:
An anode in a lithium ion capacitor, including: a carbon composition comprising: a coconut shell sourced carbon in from 85 to 95 wt %; a conductive carbon in from 1 to 10 wt %; and a binder in from 3 to 8 wt %; and an electrically conductive substrate, wherein the coconut shell sourced carbon has a disorder (D) peak to graphitic (G) peak intensity ratio by Raman analysis of from 1.40 to 1.85; and by elemental analysis a hydrogen content of from 0.01 to 0.25 wt %; a nitrogen content of from 0.01 to 0.55 wt %; and an oxygen content of from 0.01 to 2 wt %. Also disclosed are methods of making and using the carbon composition.
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