0000000000222575
AUTHOR
Bruno Scrosati
Composite Polymer Electrolytes with Improved Lithium Metal Electrode Interfacial Properties: I. Elechtrochemical Properties of Dry PEO‐LiX Systems
Several types of lithium ion conducting polymer electrolytes have been synthesized by hot-pressing homogeneous mixtures of the components, namely, poly(ethylene oxide) (PEO) as the polymer matrix, lithium trifluoromethane sulfonate (LiCF{sub 3}SO{sub 3}), and lithium tetrafluoroborate (LiBF{sub 4}), respectively, as the lithium salt, and lithium gamma-aluminate {gamma}-LiAlO{sub 2}, as a ceramic filler. This preparation procedure avoids any step including liquids so that plasticizer-free, composite polymer electrolytes can be obtained. These electrolyte have enhanced electrochemical properties, such as an ionic conductivity of the order of 10{sup {minus}4} S/cm at 80--90 C and an anodic bre…
Composite polymer electrolytes with improved lithium metal electrode interfacial properties: II. Application in rechargeable batteries
The application of a liquid-free, ceramic-added composite polymer electrolyte in a Li/LiMn{sub 2}O{sub 4} rechargeable battery is presented and discussed. As expected by the high stability of the electrolyte toward the lithium metal anode, the battery has promising characteristics in terms of reliability and cyclability.