Material and device properties modification by electrochemical charge injection in the absence of contacting electrolyte for either local spatial or final states
In some embodiments, the present invention is directed to processes for the combination of injecting charge in a material electrochemically via non-faradaic (double-layer) charging, and retaining this charge and associated desirable properties changes when the electrolyte is removed. The present invention is also directed to compositions and applications using material property changes that are induced electrochemically by double-layer charging and retained during subsequent electrolyte removal. In some embodiments, the present invention provides reversible processes for electrochemically injecting charge into material that is not in direct contact with an electrolyte. Additionally, in some embodiments, the present invention is directed to devices and other material applications that use properties changes resulting from reversible electrochemical charge injection in the absence of an electrolyte.
1 - 200 . (canceled)
201 . A supercapacitor/battery hybrid energy storage device comprising at least one first sheet of a high surface area material that is predominately non-faradaically charged and a second sheet of a material that is predominately faradaically charged, wherein these sheets are laterally joined together to make a device electrode, and wherein the gravimetric surface area of the first sheet is at least about 10 times that of the second sheet.
202 . The supercapacitor/battery hybrid energy storage device of claim 201 , wherein the device is in a dry state, and wherein there is no complete ion path in an electrolyte between said electrode and a counter electrode.