science cafe springfield mo
TRANSCRIPT
October 8th,2009
Science Café, Springfield MO
Headquarters
St. Louis, MO
Jordan Valley
Innovation
Center/MSU
Springfield, MO
Southern
Mississippi
University
Hattiesburg, MS
Crosslink Proprietary
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Company Overview
Conductive coating technologies and
commercially-available inherently
conductive polymers (ICPs)
Coatings and printed ink systems using
these conductive polymer materials
Light-emitting materials
Energy Storage device
Destruction of toxic/bad chemicals and
bacteria
For the release of medicine for healing
cuts and burns
Sensors for cracking within structures
Goal is to take these printed
conductive materials and make
everyday products that people can
use
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20
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60
80
100
120
140
2001 2002 2003 2004 2005 2006
Cumulative Patent Position
Issued Patents
Licensed IP
Crosslink Proprietary
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The basics: Charge flow in a simple circuit using metals
Negative particles (electrons) move from
the negative to the postive terminal of
the battery.
Metals such as copper wires are used to
direct electricity because electrons move
freely through the metal.
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Charge flow in polymers (conductive)
+-
• Charge moves based on the
jumping of negative charge
along the chain of the
polymer;
• Conductivity is less than
metals because negative
jumps of site to site instead
of moving freely
• This type of conductive
polymer is called a n-type
(n=negative)
When charge moves
through the polymer,
this is called a
conductive polymer
Polyacetylene (n-type conductive polymer)
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Charge flow in polymers (polyelectrolytes)
Polyethylene Oxide
+ (Li+, K+)
++
++
+
++
++
+ +
+
With out potassium chloride salt (electrolyte), current would not flow.
Polymer is not charged in this case.
Charge moves along the polymer chain so current can flow
Electrochemical Cell (Battery)
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Production Process for polymer systems by XL
Screen Printing
Roll to Roll transfer printing
Easy to manufacture
Proprietary, patented process
Screen printing for Large Areas Roll to Roll Transfer Printing
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Screen printed coating for the destruction of toxic chemicals
and harmful bacteria
+ H2O2 Safe Products
Safe Oxidation/HydrolysisProducts
Flexible or RigidFabric or Substrate
Anode Electrode Reaction2H2O O2 + 4e- + 4H+
Destruction through Oxidation
(addition of oxygen to agent)
Toxic agent + H2O2
Safe Oxidation/HydrolysisProducts
Toxic chemical or
Bacterial agent
Flexible or RigidFabric or Substrate
Screen printed
Polymer gel electrolyte
(PGE)
Screen printed positiveelectrode (carbon ink)2H2O O2 + 4e- + 4H+
Screen printed negative
electrode (carbon ink)O2 + 2H+ + 2e-
H2O2O2 + 2H+ + 2e- H2O2O2 + 2H+ + 2e- H2O2
Can be used in
hospitals and clinics, homeland security and by the military
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Test samples designed for real-agent testing
Positive
Electrode
Negative
Electrode
Polymer
Gel
Electrolyte
Anthrax
spore
H2O2
Army Tent Fabric
Results!
A B
C D
A B
C D
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Supercapacitors as energy storage devices
separator
n-type
conductive
polymer
p-type
conductive
polymer
Standard electrolytic
capacitor
+
++
++
+
+
+ ---------
Capacitance (C)
depends on the
surface area (A)
being charged
Conductive polymer increases
surface area/capacitance by 10 to 100 times over
standard capacitors
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Energy Storage applications for supercapacitors
Conventional rechargeable batteries
Slow to charge and discharge (hours)
Use metal foams/particles which are bulky and toxic (require recycling)
Limited charge storage
Supercapacitors
Fast to charge and discharge (seconds)
Light weight and organic
Large surface areas in a small volume
Supercapacitors are the ideal energy storage solution for storing charge from solar panels and wind turbins!
Can handle large jumps in energy (wind gusts)
Can storage large amount energy so it can be used
when the sun is not shining or the wind is not
blowing
Ultimate Goal
ENERGY IN = ENERGY OUT
(100% Efficient)
~20% efficient
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SuperFlexTM
Rugged, Flexible Electroluminescent (EL) Illumination System
SuperFlex™ is a set
of inks used to print a
multi-layer lamp
structure
Negative Terminal (-)
Positive Terminal (+)
The area, where the negative
charge from one conductive
polymer layer meets the positive
charge of the other conductive
layer,light is given off.
+
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Tent Prototypes
STAT 21 Shelter (by Vertigo)
Advanced Medical Shelter (ADMS,
by Vertigo
Modular Command
Post Prototype at
Crosslink
Test to make
sure fabric
lights when
crunched
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Conductive Polymers for Drug Delivery
+
+
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+
+
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+
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+ +
+ +
+
+
+
+
++ +
+
+
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+
+
+
+
+
++
+ +p-type
conductive
polymer
•Remove electrons leads to positive charge on chains
•Chains repel each other and move a part
•Drug particles are release into the skin
Smart band-aids/patches for burn and wound healing
= antibiotic, anti-inflammatory, pain medication
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Demonstration of release of two different agents
Thank You!
www.CrosslinkUSA.com
(636) 349-0050
Contacts:
Patrick J. Kinlen, CTO [email protected]
Donald S. Landy, VP – Operations/Govt Relations [email protected]
Jill C. Simpson, Gen Mgr – Energy Materials [email protected]