Analysis of H2 storage needs for early market “man-portable” fuel cell applications

Hydrogen fuel cells can potentially reduce greenhouse gas emissions and the dependence on finite fossil fuel resources. Improvements in the storage of hydrogen are needed for more widespread use of hydrogen fuel cells. To help better understand the hydrogen storage needs in the future, this study analyzes opportunities for the near-term deployment of H2-fueled fuel cells in man-portable power devices and personal electronics. The analysis engaged end users, equipment manufacturers, and technical experts to determine not only the most feasible devices for near-term deployment of hydrogen fuel cells but also the meaningful and realistic requirements for hydrogen storage in these applications. It was found that military personnel power generators, consumer battery rechargers, and specialized laptop computers offer the most potential for the incorporation of fuel cell technology. However, large improvements must be made in energy storage densities for hydrogen fuel cells to compete with batteries or direct methanol fuel cells in order to make fuel cells attractive if an inexpensive and convenient hydrogen supply is not available.

► We examine the near-term market potential for hydrogen fuel cells in man-portable devices. ► Power supplies for both consumer and military use are the strongest potential markets. ► Specialized laptop computers are also a near-term possibility. ► The present inconvenience of refueling with hydrogen is the largest barrier to acceptance. ► To overcome this, suggested requirements of acceptable hydrogen fuel cells are given.