Overcoming barriers of hydrogen storage with a low-temperature hydrogen battery
5 hours ago
- #solid-electrolyte
- #clean-energy
- #hydrogen-storage
- Scientists developed a hydrogen battery operating at 90°C, overcoming previous high-temperature and low-capacity limitations.
- The battery uses a solid electrolyte (Ba0.5Ca0.35Na0.15H1.85) to efficiently transport hydride ions (H⁻), enabling reversible hydrogen storage and release.
- Magnesium hydride (MgH₂) serves as the anode, achieving full theoretical storage capacity (7.6 wt.% H₂) over repeated cycles.
- Traditional hydrogen storage methods required extreme temperatures (300–400°C) or suffered from poor ion transport in liquid electrolytes.
- The breakthrough offers a practical solution for hydrogen-powered vehicles and clean energy systems.