stephen o's postings on Delphi's Presentation at the Hydrogen Conference

 (5/31/00)

Link1  Link2

Reads as follows under Development of SOFC stack:

Delphi is working with Global Thermoelectric in developing SOFC stacks that meet the stringent volume,weight and thermal cycling restrictions imposed by the auto industry.
The stacks have been sized for the auto voltage requirements (42V) and power outputs (3-5 kW). The stack configuration consists of 4 27-cell modules that are mounted on a gas delivery manifold/heat exchanger base. These modules are then electrically connected outside of the hot zone to achieve the 42V requirement.

Delphi's paper # 2

This paper describes the development of a solid oxide fuel cell auxiliary power unit sysytem focussing on stack development and system integration. The fuel cell team at Delphi is currently working on building a proof of concept unit to demonstrate the advantages of such an APU unit. Some of the comcepts and progress is discussed in this paper. Delphi's development SOFC stack supplier, Global Thermoelectric, has made great progress in basic cell technology to meet some of the requirements of the automotive industry.

Currently(sic) and future development will be focussed on:

. Reducing cost for commercialization
. Improving system power density
. Improving fuel utilization
. Achieving fast startup of system
. Achieving automotive levels of durability over usage and thermal cycles

The SOFC based APU technology has key advantages for the customer. It provides a paradigm shift in the supply of electric power to passenger cars. This is consistent with the increasing power demands in automobiles in the new erea of more comfort and safety. Delphi and its partners are working towards developing a Solid Oxide-based system to answer these requirements.