Lithium electrode/polyacrylonitrile based polymer electrolyte interface. Technical report, July-October 1993

Technical Report · Mon Aug 01 04:00:00 EDT 1994

OSTI ID:6945067

Slane, S

Preparation of solid-state polymer lithium electrolytes based on polyacrylonitrile (PAN) have achieved room temperature conductivities equal to that of liquid organic electrolytes. Polymer films of ethylene carbonate, propylene carbonate, PAN, and lithium salts have yielded conductivities as high as 0.004 S/cm at 25 deg C. These high conductivities make the use of polymer electrolytes a viable possibility in advanced lithium batteries. Besides a high ionic conductivity, chemical stability of the polymer with lithium is another consequential property to make an electrolyte successful in a practical battery configuration. It is shown that the growth of the interfacial resistance between lithium and the solid polymer electrolyte (SPE) can be reduced by the addition of dimethyl carbonate, or ground molecular sieves, or by reducing the solvent to salt ratio. Reported here are the film preparation technique, conductivities from -70 to +70 deg C, and the time evolution of the impedance responses of Li/SPE/Li cells. Solid polymer electrolyte, Lithium battery, Ionic conductivity.

• Research Organization: Army Research Lab., Fort Monmouth, NJ (United States)
• OSTI ID: 6945067
• Report Number(s): AD-A-283947/0/XAB; ARL-TR--73
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
36 MATERIALS SCIENCE
360606 -- Other Materials-- Physical Properties-- (1992-)
DOCUMENT TYPES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROLYTES
IONIC CONDUCTIVITY
PHYSICAL PROPERTIES
POLYMERS
PROGRESS REPORT