6533b7dafe1ef96bd126e3a2
RESEARCH PRODUCT
Improved composite materials for rechargeable lithium metal polymer batteries
Francesca SoaviMarina MastragostinoAlberto Zanellisubject
Battery (electricity)Materials scienceLithium vanadium phosphate batteryRenewable Energy Sustainability and the EnvironmentComposite numberEnergy Engineering and Power Technologychemistry.chemical_elementLithium polymer batteryElectrolyteElectrochemistrychemistryLithiumElectrical and Electronic EngineeringPhysical and Theoretical ChemistryComposite materialFaraday efficiencydescription
Abstract The performance of several polymer electrolytes for lithium metal batteries for electric vehicle applications are reported. The best performing electrolyte is the composite PEO 20 LiCF 3 SO 3 –γLiAlO 2 , which was prepared by a solvent-free procedure. It showed coulombic efficiency values of the lithium deposition–stripping process of 94%–96%. Electrochemical tests of lithium polymer battery (LPB) prototypes based on a 3 V LiMn 2 O 4 composite cathode material laminated together with the PEO 20 LiCF 3 SO 3 –γLiAlO 2 electrolyte gave promising results for electric vehicle applications. Even under non-optimized battery design, the prototypes delivered, at the C/3 rate and at 94°C, 40%–30% of theoretical capacity over 100 charge–discharge cycles.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-09-01 |