Giner Inc. — Non-Flow-Through Fuel Cell for Lunar Energy Storage¶
FO Project: 155244 — High-Density Energy Storage Technology
Period: 2023-02-01 – 2025-05-31
TRL: 4 → 6
Lead Org: Giner, Inc. (Industry)
PI: Zachary Lynn
Technology: Non-Flow-Through Fuel Cell (NFTFC), regenerative fuel cell system, gas-liquid phase separator
Outcome Category: Active Maturation — SBIR Phase III follow-on; Artemis lunar night power path
What Was Tested¶
Giner's Non-Flow-Through Fuel Cell (NFTFC) system for high-density, long-duration energy storage. The NFTFC dead-ends hydrogen/oxygen gases into the stack (all reactant consumed), using an integrated gas-liquid separation membrane to passively remove water without excess reactant flow. This approach achieves projected energy storage density >400 Wh/kg.
The FO project validated the gas-liquid phase separator in microgravity on ZERO-G's G-Force One parabolic flight aircraft. Key question: does the membrane-based passive water removal function correctly in reduced gravity, where buoyancy-driven separation disappears? The separator is the critical enabling component — without it, water flooding kills fuel cell efficiency.
Selected via NASA's 2022 TechFlights solicitation. Completed flights confirmed the separator's operation in microgravity.
Why it matters for Artemis: A 14-day lunar night (354 hours) requires energy storage that solar cannot provide. Batteries are mass-limited at these timescales. Regenerative fuel cells (RFC) — which electrolyze water during sunlit periods and discharge via fuel cell at night — are NASA's leading candidate for sustained lunar surface power. Giner's NFTFC is a candidate for the RFC discharge unit. At >400 Wh/kg, it would significantly outperform current flight batteries.
Upstream Lineage¶
Giner has been developing electrochemical systems since 1973. Their RFC program spans at least 15 years of NASA funding:
- 2012–2015: NASA SBIR water sensor ($749.6K, NNX12CA55C)
- 2019–2023: NASA EMU-related electrochemical work ($749.9K, 80NSSC19C0126)
- 2019–2023: NASA Li-S high energy density batteries ($750K, 80NSSC19C0179)
- 2020–2024: NASA Regenerative Fuel Cell Electrolyzer ($1.03M, 80NSSC20C0049) — the electrolyzer counterpart to the NFTFC
- 2023–2025: FO project [155244] — microgravity validation of gas-liquid separator
Parallel DoD work: Navy regenerative fuel cells ($749.9K, N6258312C0713, 2011–2014), Army fuel cells ($849.9K), Navy SBIR Phase II ($1.94M, 2019–2023).
Downstream / Post-FO¶
Direct follow-on: NASA SBIR Phase III — Regenerative Fuel Cell (RFC) 2 kW Fuel Cell Project
Award: 80NSSC25C0452 | $931.3K | August 27, 2025 – November 26, 2026
This Phase III award, granted three months after FO project completion (May 2025), is the clearest causal link. A 2 kW RFC system at this scale is appropriate for small lunar surface experiments or rover power — the kind of demonstrator that bridges TRL 6 to mission-ready. NASA would not fund a Phase III without the microgravity validation that FO provided.
Li-S batteries parallel track: NASA SBIR Phase II ($899.9K, 80NSSC25C0004, July 2025–2027) for Li-S batteries for electrified aircraft — Giner is working both the fuel cell and battery tracks simultaneously.
New NASA Phase I (Sep 2025): 80NSSC25C0209 ($156.5K, Sep 2025–Mar 2026): "Multi-Purpose Flame Retardant Materials for Habitation Solutions" — a new technology direction for Giner in crew safety materials.
DHA STTR Phase II (Jul 2023): HT942523C0044 ($1.1M, Jul 2023–Aug 2026): "Rapid and Reprogrammable Assay for Multiplexed Gene Detection" — Defense Health Agency biosensor contract. Extends Giner's point-of-care diagnostics portfolio beyond the NIH alcohol biosensor. Presented at MHSRS 2024 conference.
DOE/ARPA-E diversification (2024–2025): - $5.5M DOE (Sep 2024): EV battery chemistry using domestically sourced Mn/Fe/Mg - $4.3M ARPA-E GREENWELLS (Jul 2024): CO2 electrolyzer (Columbia University partnership) - $1.5M ARPA-E (Feb 2024): energy storage/aircraft electrification
Note: Earlier RFC electrolyzer contract (80NSSC20C0049, $1.03M) closed December 31, 2024 — this was the precursor work to the current Phase III.
Total Government Contracts (Tracked)¶
| Agency | Amount | Notes |
|---|---|---|
| NASA | ~$7.6M+ | RFC electrolyzer, EMU, Li-S, water sensors, SBIR Phase III |
| DoD (Navy, Army, Air Force) | ~$5M+ | RFC, fuel cells, batteries, sensors |
| DHA (STTR) | $1.1M | Multiplexed gene detection assay (2023–2026) |
| NIH | $2.5M | Wearable alcohol biosensor |
| DoT | $1M | THC detection |
| DOE/ARPA-E | $11.3M+ | EV batteries, CO2 electrolysis, energy storage (2024) |
| Total visible | ~$28M+ | Across all programs; only subset is FO-related |
FO-attributable (RFC/fuel cell work): ~$2M NASA directly linked to regenerative fuel cell track.
Outcome Assessment¶
Confidence: Suggestive
Outcome: Active Maturation — SBIR Phase III directly follows FO completion
FO [155244] is one validation step in a long RFC development arc. Giner is not a startup building around this technology — it is a mature 50-year-old electrochemical R&D firm with diversified government revenue. The $931.3K Phase III reflects FO successfully validating the separator; it does not represent a transformation of Giner's business.
The technology is still pre-Artemis infusion. The path from 2 kW demonstrator to lunar surface qualification is 5–10 years and requires a mission sponsor. Glenn Research Center is the natural partner given their RFC heritage. No public announcement of a GRC collaboration exists.
Archetype: Established R&D company uses FO to validate critical subsystem in microgravity, enabling next-phase government funding. FO is a milestone in a longer program, not a transformative event.
Time dimension: - 2023: FO project begins (TRL 4 entering) - 2025: FO completes (TRL 6 achieved) - 2025-08: NASA SBIR Phase III awarded ($931.3K) - Target: Artemis lunar surface power (2030s)
Sources¶
- TechPort: 155244
- Giner NFTFC product page: https://www.ginerinc.com/non-flow-through-fuel-cell
- SBIR.gov: https://www.sbir.gov/sbirsearch/detail/1670849
- USASpending: 80NSSC25C0452 ($931.3K Phase III), 80NSSC20C0049 ($1.03M RFC Electrolyzer)
- NASA 2022 TechFlights selection announcement (SpaceRef/TechTimes)
- Session: 2026-04-06 (Session 9)
- Last updated: 2026-04-07 (Session 85) — added DHA STTR Phase II ($1.1M gene detection); RFC Phase III active; total govt portfolio now ~$28M+