Ivan  Franko  National  University  of  Lviv
1, Universytetska Str.,
79000, Lviv,Ukraine
Tel.: +38-032-2727040  +38-032-2726688
Fax.: + 38-032-2971668
Web: www.lnu.edu.ua

NEW MATERIALS FOR CHEMICAL SOURCES OF ENERGY BASED ON INTERMETALLIC COMPOUNDS

 
 Depending on the type of battery 3 groups of alloys will be investigated with the purpose to obtain new anode materials. In the case of lithium battery with organic aprotic electrolytes alloys from ternary systems {Li-Ì-Õ} will be used (Ì – elements of II and III main groups of periodic table, X - ð-elements of IV and V groups). For lithium battery with aqueous electrolyte alloys from ternary systems {Li-Zn-X} will be used (Õ – s, ð-elements). Anode materials for metal hydride battery are elaborated on basis of solid solutions of rare earth intermetallic compounds doped by Zinc.
Project purpose: obtaining new materials for anodes of lithium and metal hydride batteries with improved specific characteristics.
 Basic characteristics of lithium-ion batteries:
 value of energy density: 100-240 Wh/kg
 voltage: 1.5-3.2 V
 cycling  efficiency >90%
 absence of "memory effect"
 significantly lower inflammability and explosivity in comparison with pure lithium anodes
 temperature range of exploration from –500C to +50 Ñ
 Basic characteristics of metal hydride batteries:
 value of energy density: 60-120 Wh/kg
 voltage: 1.3-1.5 V
 cycling  efficiency – around 2000 cycles
 ecological safety of alloys (absence of cadmium, mercury)
 temperature range of exploration from –40C to +50Ñ
Advantages: new, ecologically clean, reserve sources of current
Application fields: household appliances, radiotechnology, medicine, consumer goods
Pre-production model has been developed.

Author of the project:  Prof., Doctor of Science Volodymyr Pavlyuk, Department of Inorganic Chemistry,
Faculty of Chemistry, Tel.: + 38 032 2600388, E-mail:  pavlyuk@franko.lviv.ua

Contact person:
Bogdan Kotur
Vice-rector for Scientific Research
Prof., Doctor of Science
Tel.: +38-032-2727040
Fax.: +38-032-2616903
E-mail: ndch@franko.lviv.ua