Search results for "Lithium Ion batteries"

showing 5 items of 5 documents

Numerical and experimental validation of a LiFePO4 battery model at steady state and transient operations

2013

In the paper some of the battery models proposed in literature are analysed in order to predict the battery performance and, then, make sure that the Battery Management System (BMS) that is a key component to check and control the status of the batteries within their specified safe operating conditions, works in best conditions.

Lithium Ion batteries; elettriciBattery Management System (BMS)Lithium Ion batterieselettricienergy storageRenewable Energy Sustainability and the EnvironmentAutomotive Engineeringelectric vehicleBattery model
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Iron and lithium-iron alkyl phosphates as nanostructured material for rechargeable batteries

2018

Abstract Inorganic/organic hybrid materials composed by iron atoms bonded to an alkyl phosphate can be easily synthesized by mixing at 110 °C iron chlorides with tri-alkyl phosphates. Since structural information on these products are lacking and taking into account that lithium/iron organic hybrid materials are important in lithium ion battery technology we report here the physico-chemical characterization of different hybrid lithium/iron butylphosphates. These materials are characterized by the presence of elongated hexagonal crystals stable up to 315 °C. The insertion of lithium does not affect the local structure. Thanks to such structures the material can be electrochemically-cycled an…

Materials scienceHybrid materials; Lithium ion batteries; Tri n-butyl phosphates; Materials Science (all); Condensed Matter Physics; Mechanics of Materials; Mechanical Engineeringchemistry.chemical_element02 engineering and technology010402 general chemistry01 natural sciencesRedoxLithium-ion batteryIonchemistry.chemical_compoundGeneral Materials ScienceTri n-butyl phosphatesAlkylchemistry.chemical_classificationMechanical EngineeringAlkyl phosphate021001 nanoscience & nanotechnologyCondensed Matter Physics0104 chemical sciencesCharacterization (materials science)chemistryChemical engineeringLithium ion batteriesMechanics of MaterialsLithiumMaterials Science (all)Hybrid materials0210 nano-technologyHybrid material
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Nanostructured anode material for Li-ion batteries

2010

The present paper focuses on a nanostructured SnCo alloy electrochemically prepared by template method in view of its use as anode material alternative to graphite in lithium-ion batteries. The fabrication of SnCo nanowire arrays was carried out by potentiostatic co-deposition of the two metals by using nanostructured anodic alumina membranes as template. Electrochemical tests on lithiation-delithiation of these SnCo electrodes in conventional organic electrolyte (EC:DMC LiPF6) at 30°C showed that their specific capacity was stable for about the first 12 cycles at a value near to the theoretical one for Li22Sn5 and, hence, progressively decayed.

Materials scienceMetallurgyNanowireSNCO ALLOYElectrolyteElectrochemistrySnCo alloy template electrosynthesis alumina membrane anode lithium ion batteries electrochemical characterizationLithium-ion batteryAnodeSettore ING-IND/23 - Chimica Fisica ApplicataChemical engineeringALUMINA MEMBRANEElectrodeLITHIUM ION BATTERIESGraphiteANODETEMPLATE ELECTROSYNTHESISTemplate method pattern
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Nanostructured anode and cathode materials for Li-ion batteries

2010

Settore ING-IND/23 - Chimica Fisica ApplicataSnCo alloy template electrosynthesis alumina membrane anode lithium ion batteries electrochemical characterization
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Sn-Co nanowire-based anodes for lithium-ion batteries

2010

The demand of improvement in lithium-ion battery technology in terms of specific capacity and safety has stimulated the search for anode materials alternative to graphite. Among them, tin-based materials have been widely studied because tin can intercalate lithium up to atomic ratio Li/Sn of 4.4 to deliver a impressive specific capacity of 993 mAhg−1 (while graphite gives 372 mAhg−1). Unfortunately the high volume change of about 300%, which is related to the insertion/removal of lithium, causes the alloy pulverization and loss of electric contact that causes a poor cycle life. The synthesis of nanometric materials, intermetallic compounds and carbon composites are strategies that have been…

Settore ING-IND/23 - Chimica Fisica ApplicataSnCo alloy template electrosynthesis alumina membrane anode lithium ion batteries electrochemical characterization
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