Saft announced on 19 October 2026 the start of Saft solid-state battery production, what it calls France’s first solid-state batteries, on new lines at its Bordeaux site. The title and date come from Saft’s press release page; the release text itself could not be opened for this report, so no capacity, output or cell specification is stated here.
Saft solid-state cells and the aviation link, four days earlier
On 15 October 2026 Safran announced the first cells from its partnership with Saft, described by Safran as semi-solid batteries for aviation. Safran says the cells were made on Saft’s new multi-technology production lines in Bordeaux and move from concept studies to hands-on evaluation, with most validation and integration testing at its Niort system test center. From 2027 the partnership is to extend to all-solid-state cells and batteries.
| Date | Event | Source |
|---|---|---|
| 15 October 2026 | First partnership cells delivered for evaluation, described as semi-solid | Safran announcement |
| 19 October 2026 | Production launch of solid-state batteries in Bordeaux | Saft press release, title and date |
| From 2027 | Partnership extends to all-solid-state cells and batteries | Safran announcement |
What is not disclosed about Saft solid-state cells
Neither announcement reviewed gives energy density, cycle life, line capacity or customer volumes. The cells delivered so far are described as semi-solid, and the all-solid-state step is dated 2027. Related cell-level data on ENB: lithium-sulfur battery at 2.54 V loses 22% in 100 cycles.
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