Stretchable conductive composites for use in soft devices

Title: Stretchable conductive composites for use in soft devices

Abstract

An elastically-deformable, conductive composite using elastomers and conductive fibers and simple fabrication procedures is provided. Conductive elastomeric composites offer low resistance to electrical current and are elastic over large (>25%) extensional strains. They can be easily interfaced/built into structures fabricated from elastomeric polymers.

Inventors:: Lessing, Joshua Aaron; Morin, Stephen A.; Whitesides, George M.

Issue Date:: 2019-09-17

Research Org.:: Harvard Univ., Cambridge, MA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1576314

Patent Number(s):: 10418145

Application Number:: 14/732,302

Assignee:: President and Fellows of Harvard College (Cambridge, MA)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01B - CABLES

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05K - PRINTED CIRCUITS

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01B - CABLES
H01B1/24 - the conductive material comprising carbon-silicon compounds, carbon or silicon

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05K - PRINTED CIRCUITS
H05K2201/0281 - Conductive fibers

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
B29K2305/00 - Use of metals, their alloys or their compounds, as reinforcement

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01F - MAGNETS
H01F7/02 - Permanent magnets {[PM]}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01R - ELECTRICALLY-CONDUCTIVE CONNECTIONS
H01R43/007 - {for elastomeric connecting elements}

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05K - PRINTED CIRCUITS
H05K1/0283 - {Stretchable printed circuits}

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS
B29C39/18 - incorporating preformed parts or layers, e.g. casting around inserts or for coating articles {

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
B29K2307/04 - Carbon

G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
G01L1/20 - by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05K - PRINTED CIRCUITS
H05K2201/0133 - Elastomeric or compliant polymer

G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
G01L1/2287 - {constructional details of the strain gauges

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05K - PRINTED CIRCUITS
H05K1/0287 - {having an universal lay-out, e.g. pad or land grid patterns or mesh patterns}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01H - ELECTRIC SWITCHES
H01H36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding {

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01B - CABLES
H01B1/22 - the conductive material comprising metals or alloys

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05K - PRINTED CIRCUITS
H05K2201/0314 - Elastomeric connector or conductor, e.g. rubber with metallic filler

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
B29K2305/12 - Iron

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01H - ELECTRIC SWITCHES
H01H1/021 - Composite materials

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05K - PRINTED CIRCUITS
H05K2201/0323 - Carbon

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01R - ELECTRICALLY-CONDUCTIVE CONNECTIONS
H01R13/52 - Dustproof, splashproof, drip-proof, waterproof, or flameproof cases

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DOE Contract Number:: DMR-0820484; FG02-00ER45852

Resource Type:: Patent

Resource Relation:: Patent File Date: 2015 Jun 05

Country of Publication:: United States

Language:: English

Citation Formats


                    Lessing, Joshua Aaron, Morin, Stephen A., and Whitesides, George M. Stretchable conductive composites for use in soft devices.  United States: N. p., 2019. 
        Web.

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                    Lessing, Joshua Aaron, Morin, Stephen A., & Whitesides, George M. Stretchable conductive composites for use in soft devices.  United States.

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                    Lessing, Joshua Aaron, Morin, Stephen A., and Whitesides, George M. Tue .  
        "Stretchable conductive composites for use in soft devices".  United States.  https://www.osti.gov/servlets/purl/1576314.

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@article{osti_1576314,

  title        = {Stretchable conductive composites for use in soft devices},

  author       = {Lessing, Joshua Aaron and Morin, Stephen A. and Whitesides, George M.},

  abstractNote = {An elastically-deformable, conductive composite using elastomers and conductive fibers and simple fabrication procedures is provided. Conductive elastomeric composites offer low resistance to electrical current and are elastic over large (>25%) extensional strains. They can be easily interfaced/built into structures fabricated from elastomeric polymers.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2019},

  month        = {9}

}

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Similar Records

Title: Stretchable conductive composites for use in soft devices

Abstract

Citation Formats

Conductive elastomeric elements patent, July 1977

Miniature pin board assembly patent, November 1978

Abrasive disc of polyurethane bonded metallic wool patent, January 1979

Anisotropically pressure-sensitive electroconductive composite sheets and method for the preparation thereof patent, April 1980

Process for producing an anisotropically electroconductive sheet patent, June 1980

Deformation sensitive electroconductive knitted or woven fabric and deformation sensitive electroconductive device comprising the same patent, December 1987

Electrical connector for surface mounting and method of making thereof patent, July 1988

Machine with removable unit having two element electrical connection patent, January 1993

Differential pressure switch for stored gas pressure vessel patent, July 1993

Strain or stress gauge and method for detecting strain or stress of structure using the same, and plastic composite material for foreknowing progress of breakdown of structure and method using the same patent, January 1995

Pressure activated switching device patent, December 1997

Electrical connection and connectors patent, May 2003

Aerogel composite with fibrous batting patent, July 2006

Aerogel composite with fibrous batting patent, March 2009

Pressure sensing device patent, April 2010

Electrically conductive composite material patent, May 2011

Electrical interconnect with an electrical pathway including at least a first member overlain by a second member at a contact point patent, September 2011

Conductive elastomeric elements
patent, July 1977

Miniature pin board assembly
patent, November 1978

Abrasive disc of polyurethane bonded metallic wool
patent, January 1979

Anisotropically pressure-sensitive electroconductive composite sheets and method for the preparation thereof
patent, April 1980

Process for producing an anisotropically electroconductive sheet
patent, June 1980

Deformation sensitive electroconductive knitted or woven fabric and deformation sensitive electroconductive device comprising the same
patent, December 1987

Electrical connector for surface mounting and method of making thereof
patent, July 1988

Machine with removable unit having two element electrical connection
patent, January 1993

Differential pressure switch for stored gas pressure vessel
patent, July 1993

Strain or stress gauge and method for detecting strain or stress of structure using the same, and plastic composite material for foreknowing progress of breakdown of structure and method using the same
patent, January 1995

Pressure activated switching device
patent, December 1997

Electrical connection and connectors
patent, May 2003

Aerogel composite with fibrous batting
patent, July 2006

Aerogel composite with fibrous batting
patent, March 2009

Pressure sensing device
patent, April 2010

Electrically conductive composite material
patent, May 2011

Electrical interconnect with an electrical pathway including at least a first member overlain by a second member at a contact point
patent, September 2011