Electron conducting carbon-based cement

Patent metadata

Field	Value
Publication number	US-10875809-B2
Application number	US-201916245752-A
Country	US
Kind code	B2
Filing date	Jan 11, 2019
Priority date	Jan 12, 2018
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

A nanoporous carbon-loaded cement composite that conducts electricity. The nanoporous carbon-loaded cement composite can be used in a variety of different fields of use, including, for example, a structural super-capacitor as an energy solution for autonomous housing and other buildings, a heated cement for pavement deicing or house basement insulation against capillary rise, a protection of concrete against freeze-thaw (FT) or alkali silica reaction (ASR) or other crystallization degradation processes, and as a conductive cable, wire or concrete trace.

First claim

What is claimed is:

1. A structural supercapacitor, the structural supercapacitor comprising:
at least two conductors comprising an electrically conductive cement composite, the electrically conductive cement composite comprising:
(i) hydraulic cement;
(ii) water;
(iii) a carbon nanoparticle dispersing agent; and
(iv) a continuous percolating network of nanoporous carbon nanoparticles;

the at least two conductors being separated by a dielectric porous medium permeable to electrolyte species.

2. The structural supercapacitor of claim 1 , comprising a structural element in a building.

3. The structural supercapacitor of claim 1 , wherein the dielectric porous medium comprises a separator membrane comprising at least one of: paper and Portland Cement.

4. The structural supercapacitor of claim 1 , wherein each of the at least two conductors comprises a sheet comprising the electrically conductive cement composite, the sheet being less than about 100 cm thick.

5. The structural supercapacitor of claim 1 , in electrical connection with an energy source.

6. The structural supercapacitor of claim 5 , wherein the energy source comprises at least one of a solar energy source, a wind power source, a biofuel energy source, a biomass energy source, a geothermal power source, a hydropower source, a tidal power source and a wave power source.

7. The structural supercapacitor of claim 1 , in electrical connection with a battery.

Assignees

• Massachusetts Inst Technology
• Centre Nat Rech Scient
• Univ Bordeaux

Inventors

• Pellenq Roland J M
• Ioannidou Aikaterini
• Chanut Nicolas
• Divoux Thibaut
• Backov Renal
• Ulm Franz-Josef

Classifications

• Y02E60/13

  Energy storage using capacitors · CPC title

• H01G11/30

  characterised by their material · CPC title

• C04B22/02

  Elements · CPC title

• H01G11/08

  Structural combinations, e.g. assembly or connection, of hybrid or EDL capacitors with other electric components, at least one hybrid or EDL capacitor being the main component · CPC title

• C04B2111/94

  Electrically conducting materials · CPC title