As mobile electronics continue to evolve, the need for
high-output, long-lasting rechargeable batteries has grown tremendously. In the
search for suitable materials from which to construct high energy density
batteries, one of the principal obstacles has been the provision of a suitable
electrolyte that exhibits the right combination of conductivity and ion
mobility, stability, and wide electrochemical window. Very few electrolytes have
been developed thus far that exhibit the above combination of performance
parameters. Despite significant research in the area, there remains a need for
improved electrolytes that can be easily incorporated into voltaic cells without
significant extra cost.
Researchers at Arizona State University have developed a new
class of ‘rubbery’ electrolytes which comprise lithium salts in combination with
long-chain polymers. The resulting electrolytes are stable, highly conductive,
and have a wide electrochemical window. As such, they are excellent targets for
use in rechargeable electrochemical devices such as batteries.
This technology part of a large suite of electrolyte and
battery technologies developed at Arizona State University. Significant testing
has been completed, and the results have been published. At this time, AzTE is
seeking potential partners and licensees for these issued patents and related
technologies.
Potential Applications
- Rechargeable Batteries
- Photovoltaic Cells
- Photochromic Displays
- Other Electrochemical Applications
Benefits and Advantages
- High Conductivity – exceptionally high conductivity at
temperatures of 100 degrees or lower (including room temperature).
- Solid Consistency – elastic or rubbery solid.
- Longer Cycle Life – The solvents remain highly effective
even after hundreds of charge / discharge cycles.
- Lithium Compatible – These solvents work well with alkali
metal anodes in general, and with lithium and lithium-ion anodes in
particular.
- Wider Electrochemical Window - The solvents have a wide
electrochemical window of 4+ volts.
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