Mechanical properties of solid state dual phase block copolymers for electrolytes in lithium ion batteries were studied. Tensile and dynamic mechanical properties of these materials were determined. Heavily branched polymers with long chains possessed the best tensile properties and ionic conductivities. Time-temperature superpositioning was used to determine Williams-Lander-Ferry shift factors. These shift factors were used to explore the mechanism of ionic condition. The applicability of the WLF shift factors indicated that segmental motion affected the conductivity of the polymer electrolytes.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Smith, Meghan Elisabeth

Publisher

• Worcester Polytechnic Institute

Identifier

• 04C030M

Advisor

• Datta, Ravindra

Year

• 2004

Sponsor

• NASA Glenn Research Center

Date created

• 2004-01-01

Resource type

• Major Qualifying Project

Major

• Chemical Engineering

Rights statement

• In Copyright