Obiettivo WORK ON LI/S BATTERIES IN THE FIRST PHASE 1977 - 1979 RESULTED IN AN ENERGY DENSITY OF 80 WH/KG AND A LIFETIME OF 100 CYCLES. ONE OF THE DRAWBACKS OF THIS BATTERY WAS THE USE OF BORON-NITRIDE AS A SEPARATOR (A POROUS ELECTRICAL INSULATOR BETWEEN ELECTRODES WHICH PERMITS ION CONDUCTION). WITH BORON-NITRIDE, WHICH IS VERY EXPENSIVE, A STORAGE CAPACITY OF ONE KWH WOULD COST AROUND 1,000 DOLLARS. A MEW SEPARATOR MATERIAL MGO HAS NOW BEEN IDENTIFIED WHICH IS SATISFACTORY AND COSTS TWO ORDERS OF MAGNITUDE LESS. INVESTIGATIONS ALSO LEAD TO THE CONCLUSION THAT A TERNARY MOLTEN SALT LIF-LICL-LIBR IS TO PREFERRED OVER LICL-KCL USED UP TILL NOW. LICL-KCL HAS THE DISADVANTAGE THAT AT HIGH CURRENT DENSITIES, KCI CAN CRYSTALLIZE IN THE PORES OF THE SEPARATOR. WITH TECHNICAL CELLS (140 AH, 5 H. DISCHARGE RATE) LIFETIMES OF 400 CYCLES HAVE BEEN OBTAINED. THESE CELLS HAD ENERGY DENSITIES OF 100 WH/KG. AFTER FOUR THERMAL CYCLES BETWEEN 450 DEGREES C AND ROOM TEMPERATURES, THE BATTERY DID NOT SHOW ANY DAMAGE. SAFETY ASPECTS HAVE BEEN INVESTIGATED AND LEAD TO THE CONCLUSION THAT LIAL/FES BATTERIES WILL NOT HAVE AN EXTRA RISK AS COMPARED TO LEAD ACID BATTERIES. THE MATERIALS COST OF LIAL/FES BATTERIES IS ESTIMATED TO BE BETWEEN 60 AND 130 DM/KWH (50 % IS DUE TO THE LI COMPOUNDS). IT IS THEREFORE EXPECTED THAT THE COST OF A BATTERY WILL BE COMPARABLE WITH THE COST OF NA/S, NI/FE AND LEAD ACID BATTERIES WHICH LIES AROUND 86, 300-350 AND 150-200 DM/KWH. A DESIGN CONCEPT OF A MODULE CONSISTING OF 10 CELLS OF 200 AH HAS BEEN DEVELOPED AND THE THERMAL MANAGEMENT OF A 24 KW BATTERY HAS BEEN INVESTIGATED. Programma(i) PRE-ENNONUC 2C - Energy research and development programme (EEC), 1979-1983 Argomento(i) Data not available Invito a presentare proposte Data not available Meccanismo di finanziamento Data not available Coordinatore Varta Batterie AG Contributo UE Nessun dato Indirizzo Gundelhardtstraße 72 65779 Kelkheim Germania Mostra sulla mappa Costo totale Nessun dato
