Lightweight pressure vessels and unitized regenerative fuel cells
Energy storage systems have been designed using lightweight pressure vessels with unitized regenerative fuel cells (URFCs). The vessels provide a means of storing reactant gases required for URFCs; they use lightweight bladder liners that act as inflatable mandrels for composite overwrap and provide a permeation barrier. URFC systems have been designed for zero emission vehicles (ZEVs); they are cost competitive with primary FC powered vehicles that operate on H/air with capacitors or batteries for power peaking and regenerative braking. URFCs are capable of regenerative braking via electrolysis and power peaking using low volume/low pressure accumulated oxygen for supercharging the power stack. URFC ZEVs can be safely and rapidly (<5 min.) refueled using home electrolysis units. Reversible operation of cell membrane catalyst is feasible without significant degradation. Such systems would have a rechargeable specific energy > 400 Wh/kg.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 461230
- Report Number(s):
- UCRL-JC-125220; CONF-961107-10; ON: DE97050296
- Resource Relation:
- Conference: Fuel cell seminar, Kissimmee, FL (United States), 17-20 Nov 1996; Other Information: PBD: 6 Sep 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Vehicular hydrogen storage using lightweight tanks (regenerative fuel cell systems)
Unitized regenerative fuel cell systems