Abstract:
A cathode in a lithium ion capacitor, including: a carbon composition comprising: an activated carbon; a conductive carbon; and a binder in in amounts as defined herein; and a current collector that supports the carbon composition, wherein the activated carbon has: a surface area of from 500 to 3000 m2/g; a pore volume where from 50 to 80% of the void volume is in pores less than 10 Å; a pore volume higher than 0.3 cm3/gm occupied by the micropores less than 10 Å; and a microporosity of greater than 60% of the total pore volume. Also disclosed is a method of making the cathode and using the cathode in a lithium ion capacitor.
Abstract:
electrically conductive honeycomb body that includes a porous honeycomb structure including a plurality of intersecting porous walls arranged to provide a matrix of cells, the porous walls including wall surfaces that define a plurality of channels extending from an inlet end to an outlet end of the structure. The porous walls include ceramic composite material that includes at least one carbide phase and at least one silicide phase, each carbide and silicide phase including one or more metals selected from the group consisting of Si, Mo, Ti, Zr and W.
Abstract:
An anode in a lithium ion capacitor, including: a carbon composition comprising: a phenolic resin sourced carbon, a conductive carbon, and a binder as defined herein; and an electrically conductive substrate supporting the carbon composition, wherein the phenolic resin sourced carbon has a disorder by Raman analysis as defined herein; and a hydrogen content; a nitrogen content; an and oxygen content as defined herein. Also disclosed is a method of making the anode, a method of making the lithium ion capacitor, and methods of use thereof.
Abstract:
A lithium ion capacitor, including: an anode including: a conductive support; a first mixture coated on the conductive support including: an interclating carbon; a conductive carbon black; and a PVDF binder in amounts as defined herein, and where the PVDF binder has a weight average molecular weight of from 300,000 to 400,000; and a second mixture coated on the first mixture, the second mixture comprising micron-sized lithium metal particles having an encapsulating shell comprised of LiPF6, mineral oil, and a thermoplastic binder. Also disclosed is a method of making and using the lithium ion capacitor.
Abstract:
A cathode in a lithium ion capacitor, including: a carbon composition comprising: an activated carbon; a conductive carbon; and a binder in in amounts as defined herein; and a current collector that supports the carbon composition, wherein the activated carbon has: a surface area of from 500 to 3000 m2/g; a pore volume where from 50 to 80% of the void volume is in pores less than 10 Å; a pore volume higher than 0.3 cm3/gm occupied by the micropores less than 10 Å; and a microporosity of greater than 60% of the total pore volume. Also disclosed is a method of making the cathode and using the cathode in a lithium ion capacitor.
Abstract:
An anode in a lithium ion capacitor, including: a carbon composition comprising: a coke sourced carbon, a conductive carbon, and a binder as defined herein; and an electrically conductive substrate supporting the carbon composition, wherein the coke sourced carbon has a disorder by Raman analysis as defined herein; and a hydrogen content; a nitrogen content; an and oxygen content as defined herein. Also disclosed is a method of making the anode, a method of making the lithium ion capacitor, and methods of use thereof.
Abstract:
A lithium ion capacitor, including: an anode including: a conductive support; a first mixture coated on the conductive support including: an interclating_carbon; a conductive carbon black; and a PVDF binder in amounts as defined herein, and where the PVDF binder has a weight average molecular weight of from 300,000 to 400,000; and a second mixture coated on the first mixture, the second mixture comprising micron-sized lithium metal particles having an encapsulating shell comprised of LiPF6, mineral oil, and a thermoplastic binder. Also disclosed is a method of making and using the lithium ion capacitor.
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.
Abstract:
An electrolyte composition, including: an electrolyte comprising a conductive salt; and a mixture comprising an alkyl nitrile and an alkyl dinitrile, wherein the electrolyte composition has a depressed vapor pressure at 85° C., as defined herein. Also disclosed is an article incorporating the electrolyte composition and methods for making and using the article at elevated temperatures.
Abstract:
An encapsulated lithium particle including: a core comprised of at least one of: lithium; a lithium metal alloy; or a combination thereof; and a shell comprised of a lithium salt, an oil, and optionally a binder, and the shell encapsulates the core, and the particle size is from 10 to 500 microns. Also, disclosed is a method of making the particle and using the particle in electrical devices such as a capacitor or a battery.