ProLogium unveils superfluidized all-inorganic solid-state battery at CES 2026
First commercial SSB spec sheet: 860 Wh/L, 57 mS/cm, 4-6 min fast charge, no thermal runaway in ARC.
ProLogium unveils superfluidized all-inorganic SSB at CES 2026
Lead
At CES 2026, coinciding with ProLogium's 20th anniversary, the Taiwanese battery maker disclosed performance data for a new cell architecture it calls a "superfluidized all-inorganic solid-state battery." This is the most technically specific SSB spec sheet disclosed by a commercial player in the current news cycle — most competitors (BYD, CATL, Samsung SDI) release milestone announcements without numbers.
Technical architecture
Three components integrated in a single cell:
- Superfluidized all-inorganic solid-state electrolyte — proprietary formulation
- All-ceramic separator — replaces polymer separators
- All-silicon anode — high theoretical capacity, historically blocked by volume expansion; ProLogium claims to have engineered around this
ProLogium frames this as simultaneously surpassing the three mainstream SSB approaches (sulfide, oxide, polymer) across electrochemical performance, safety, and manufacturability.
Disclosed specifications
| Metric | Value | Context |
|---|---|---|
| Volumetric energy density | up to 860 Wh/L | Mass-market Li-ion today: ~450-550 Wh/L |
| Ionic conductivity | 57 mS/cm @ room temp | ~5× conventional liquid electrolytes |
| Fast charging | 4–6 min to 60-80% SOC | Comparable to fastest-charging liquid Li-ion |
| Low-temperature performance | "comparable to competitors' room-temperature results" | Unquantified |
| Thermal runaway in ARC testing | Not demonstrated | Significant safety claim |
Active Safety Mechanism (ASM)
ProLogium describes a distinct safety feature: under extreme conditions, the cell "proactively converts high-risk active materials in the cathode and anode into a more stable crystalline structure." If validated, this moves safety from passive (thermal management) to active (chemistry-level transformation).
Engineering implications
- No external pressure required — simplifies pack design and reduces mass vs. sulfide SSBs that need compression hardware to maintain interface contact
- All-silicon anode — if volume expansion is truly solved, this breaks the energy-density ceiling that has held Li-ion back
Evidence strength
- Source is a press release. Self-reported numbers have not been independently validated in third-party testing.
- ProLogium has a history of milestone announcements predating commercial shipment.
- The spec sheet is concrete enough to be falsifiable — which is either a credibility signal or a hostage to future fact-checking.
Source: ProLogium Marks 20th Anniversary at CES 2026 — PR Newswire, January 5, 2026