DEVELOPMENT OF A MODULAR ELECTROCHEMICAL STORAGE SYSTEM
The modular electrochemical storage system is aimed to bring a remarkable contribution in the improvement of the operational and economical figure of electric vehicles, which are strongly dependent on the performance of the battery, in particular by its deliverable energy and power density, duration and maintenance requirements. The tests carried ouu with available lead/acid batteries and the results of electric vehicle operation highlighted that the operating temperature and the charge law impact critically on battery performance and that topping-up requres most the maintenance time. They also showed the critical battery operation safety requirements. The storage system developed is based on new design battery monoblocks including topping-up devices and flame stoppers, assembled into a light weight close containment structure of modular dimensions applicable on vehicles ranging from 1000 to 4500 kg Gross Weight. The storage system includes the charger with a charge law adaptable to specific vehicle emissions, a d.c.-d.c. converter to power auxiliary loads and auxiliary batery as a buffer. The tests carried out on bench and on vehicle showed the mechnical soundness and safety of the system developed. The weight ratio between the containment structure and the whole battery resulted lower than 5%. The thermal control applied allows the battery to operate at a winter temperature meanly 10 to 15 C over the ambient temperature in the cold season and, in combination with the adaptable charge law, allows an overall discharge/charge battery efficiency over 70% even when the external temperature is meanly under the freeze point. point.
Commission of the European CommunitiesDirectorate-General for Information, Market and Innovation
- Brusaglino, G
- Montalenti, P
- Publication Date: 1984
- Pagination: 116 p.
- TRT Terms: Electric vehicles; Electrochemistry; Lead acid batteries; Storage batteries; Temperature
- Subject Areas: Energy; Highways; Planning and Forecasting; Vehicles and Equipment; I72: Traffic and Transport Planning;
- Accession Number: 00450072
- Record Type: Publication
- Source Agency: Energy Research Abstracts
- Report/Paper Numbers: EUR-9329-EN-IT
- Files: TRIS
- Created Date: Aug 27 2004 8:56PM