Hybrid
Nanocomposites
Hybrid Nanocomposites for Lithium Battery Cathodes
Developed ternary hybrid nanocomposites have a guest(cid:1)host structure and include:
• inorganic nanoparticles i.e. layered vanadium oxide particles of around 10nm in size;
• electron(cid:1)conducting polymer (polyaniline, polypyrrole), the macromolecules
of which are mainly located inside the inorganic nanoparticles;
• ion(cid:1)conducting polymer (poly(ethylene oxide)), whose chains are located both
Hybrid nanocomposites
inside and outside of the inorganic nanoparticles.
The simultaneous presence of both electron(cid:1)conducting and ion(cid:1)conducting polymers
inside the inorganic nanoparticles, in the form of a layer (0.5–0.6 nm thick), is a distinc(cid:1)
tive feature in comparison with known hybrids and provides for improved efficiency of
charge(cid:1)discharge cycling.
Can be used as an active component of the cathode in lithium batteries. Targeted dis(cid:1)
charge capacity is 200(cid:1)250 mA*h/g which considerably exceeds the characteristics of
presently used cathode materials.
Hybrid Nanocomposites for Light(cid:1)Emitting Diodes
Hybrid nanocomposites based on organic semiconductors and inorganic matrices that
are applicable in light(cid:1)emitting diodes and displays.
Semiconducting conjugated polymer (MEH(cid:1)PPV) and inorganic mesoporous silica
(MCM(cid:1)41) were used as the basis for the developed nanocomposite. The content of the
organic component in the developed nanocomposite is 15wt% which well exceeds
known international prototypes. Organic macromolecules are confined inside the chan(cid:1)
nels of the mesoporous inorganic matrix that results in improved efficiency of electrolu(cid:1)
minescence and environmental stability.
Dr. Oleg Y. Posudievsky, Institute of Physical Chemistry, Kyiv
14
NANOMATERIALS: ORGANIC
For more information or to license this innovation:
- Log In
to view the innovation's details
- Sign Up
with discount code "ECOS"