Patent ID: 9672992
Date: 2017-06-06
CPC Classifications: H01G,Y02E

Claim:
1. A lithium ion capacitor, comprising: a cell comprising a stack of: an anode comprising: a carbon composition comprising: a coke sourced carbon in from 85 to 95 wt %; a conductive carbon in from 1 to 8 wt %; and a binder in from 3 to 10 wt %, based on the total weight of the carbon composition; and an electrically conductive substrate that supports the carbon composition, wherein the coke sourced carbon has a disorder (D) peak to graphitic (G) peak intensity ratio by Raman analysis of from 1.25 to 1.55; a hydrogen content of from 0.01 to 0.25 wt %; a nitrogen content of from 0.03 to 0.75 wt %; and an oxygen content of from 0.05 to 2.0 wt % by elemental analysis; a cathode comprising a heat and KOH activated wheat flour sourced carbon, a fluoropolymer, and a conductive carbon black; a separator between the anode and cathode; and a lithium composite powder coated on at least a portion of the surface of the anode.