The instruments of the two Grenoble facilities that fit the questions, read on their own pages on 3 November 2026, with what each is best at here and which proposal uses it. Values the pages did not give are marked "nv" and are to be confirmed with the instrument's contact. Other facilities (PSI, ISIS, MLZ, ALBA, SESAME, the Spanish and Moroccan routes) come after the first design.
Spain is a Scientific Member (since 1987); Morocco is not. At least two-thirds of the proposers must come from member countries (ILL co-proposers do not count); otherwise only Director's Discretionary Time (5 % of beam time). Next standard deadline: 15 February 2027; second round in September. Reactor: a shutdown from November 2026 to March 2027; cycle 202 runs 23 March – 24 May 2027, later 2027 cycles not yet published.
| Instrument | What it offers | Best for, here | Used in | |
|---|---|---|---|---|
| D2B · high-resolution powder diffractometer primary |
λ = 1.594 Å optimum (also 1.051–3.152 Å); Δd/d \(\approx\) \(5\times10^{-4}\); 2\(\theta\) to 160°; 128 ³He tubes; scans of about 30 min; furnace 200–1000 K, cryofurnace, cryostat; automatic sample changer (positions nv). | Li, Ga, Al and O positions and occupancies; acentric distortion; Ba on the La site; separating cubic and tetragonal garnets and \(\mathrm{Li_{2}ZrO_{3}}\). | P1 · G01, G02, G03, G05, G06, G08; high-temperature data for G10 | page |
| D20 · high-intensity two-axis diffractometer primary |
λ = 1.30 Å Cu(200) at \(\approx\) \(9.8\times10^{7}\) n \(\mathrm{cm}^{-2}\) \(\mathrm{s}^{-1}\), Ge(113) 0.85–2.41 Å at Δd/d \(\approx\) \(10^{-3}\); 1536-cell PSD over 153.6°; full patterns in seconds; furnace to 1100 °C. | The whole matrix at room temperature; continuous heating ramps; tetragonal–cubic transition; Li loss in situ. | P3 · G02, G05, G09, G10 | page |
| D1B · CRG (CNRS–CSIC) two-axis diffractometer alternative |
λ = 2.52 Å (\(7.9\times10^{6}\) n \(\mathrm{cm}^{-2}\) \(\mathrm{s}^{-1}\)) and 1.28 Å; FWHM 0.25° at 1.28 Å; 1280-cell PSD over 128°; furnace 300–1200 K. Half the time through ILL, half through CNRS/CSIC calls (spring and autumn). | A Spanish route for the room-temperature survey and heating ramps. | P3 (alternative) | page |
| XtremeD · CRG (INMA–CSIC) high-intensity diffractometer alternative |
λ = 1–3.5 Å (Si 115), 2.36–3.8 Å (HOPG); \(\approx\) \(2\times10^{7}\) n \(\mathrm{s}^{-1}\) \(\mathrm{cm}^{-2}\); 2D detector 130°\(\times 24\)°; furnace 300–1200 K. Time through ILL calls and Spanish national CRG calls. | Second Spanish route for thermodiffraction and in situ work. | P3 (alternative) | page |
| D4c · hot-source diffractometer for total scattering second-round |
λ \(\approx 0.7\), 0.5, 0.35 Å; 2\(\theta\) 1.5–140°; vanadium furnace to 1150 °C; available about half the time (shares beam tube H8). | Neutron PDF: Li–O and Li–Li correlations. | P5 · G11 | page |
| D007 · polarised diffuse-scattering spectrometer not now |
Commissioned in 2024; user status for 2027 nv. | Separating the incoherent scattering of Li and H from the coherent signal. | — | page |
Spain is a member (4 %); Morocco is neither member nor associate: non-member groups get time through collaboration with member-country groups. Deadlines 1 March and 10 September, 17:00 CET; next 1 March 2027 (beam August 2027 – February 2028). A BAG needs a PI from a member country and at least three groups. 2027 schedule approved: 5328 h of user mode in five runs. ID11 accepts no proposals (pause from March 2027).
| Instrument | What it offers | Best for, here | Used in | |
|---|---|---|---|---|
| ID22 · high-resolution powder diffraction primary |
6–75 keV, routinely 31 or 35 keV; 13-channel Si(111) analyser with Eiger2 2M-W CdTe; instrumental FWHM \(\approx 0.0025\)° 2\(\theta\); robot for 75 capillaries; hot-air blower to \(\approx 950\) °C; fast-PDF to Q \(\approx 30\) Å⁻¹ at 70 keV. | Lattice parameters with esd for all 38; phase fractions to \(\approx 0.1\) wt%; powders and pellets; La-site occupancy; resonant diffraction at the Y K edge. | P2 · G04, G05, G06, G07, G09 | page |
| BM23 · X-ray absorption spectroscopy primary |
4.5–90 keV; transmission and fluorescence; Pilatus 1M for simultaneous XRD; holders for up to 52 samples, robot for more than 500. | Y K, Rb K, Ga K, Zr K EXAFS; Ba K and Ta K above 37 keV if needed. | P4 · G04, G06, G07 | page |
| BM25 · SpLine, the Spanish CRG alternative |
5.0–39.5 keV; XANES/EXAFS and high-resolution powder diffraction with analyser; operated by ICMM-CSIC; 30 % of the time through ESRF, 70 % through the Spanish committee (calls in March and September; same form, "CRG proposal" ticked). | The Spanish route for both the XAS of P4 (edges above 5 keV) and a second high-resolution diffraction option for P2. | P2, P4 (alternative) | page |
| BM08 · LISA, the Italian CRG alternative |
4.0–90 keV; XAS and powder diffraction; HPGe detectors; cryostats, oven to 2000 K. | The Sc K edge (4.49 keV), below the range of BM23, BM25 and BM31. | P4 (Sc K) | page |
| BM20 · ROBL (HZDR CRG) alternative |
2.6–36 keV; XAS, high-energy-resolution fluorescence detection, XES, XRD. | Sc K and Ba L3 with high-resolution fluorescence. | P4 (Sc K, Ba L3) | page |
| ID15A · fast diffraction, PDF, operando second-round |
20–280 keV; Pilatus CdTe detectors; capillary oven 300–1200 K; potentiostat, flow cells. | X-ray PDF at high Q and temperature; the synthesis in situ; transmission through intact pellets. | P5 · G09, G11 | page |
| ID31 · high-energy diffraction alternative |
21–150 keV; high-throughput robot (1056 samples in under 1 h); XRD and PDF; electrochemical cells. Academic mail-in nv. | Throughput for large series; operando cells for a later cell-level study. | P2, P5 (alternative) | page |
| BM31 · SNBL, XAS + XRD + PDF on one sample second-round |
4.9–48 keV; Pilatus3 2M CdTe, Qmax 27 Å⁻¹; furnace to 900 °C; gas flow. | Li⁺/H⁺ exchange and synthesis in situ, seen locally and in average at once. | P5 · G08, G09 | page |
No current scheme takes one combined X-ray + neutron proposal for materials work: the practical route is separate ILL and ESRF proposals that cite each other. The Grenoble Battery Hub (ESRF, ILL, CEA, 2021) offers long-term ILL projects across several instruments; the ESRF European Battery Hub (EuBat, led by CEA) admits new partners after its pilot phase. Both worth a letter once P1 and P2 are drafted.
| Element | Edge | Energy | Beamline | Note |
|---|---|---|---|---|
| Y | K | 17.04 keV | BM23, BM25, BM08 | the key edge (G04); resonant diffraction at ID22 |
| Zr | K | 18.00 keV | BM23, BM25 | the octahedral site seen from Zr |
| Rb | K | 15.20 keV | BM23, BM25 | G06 |
| Ga | K | 10.37 keV | BM23, BM25 | tetrahedral Ga |
| Sc | K | 4.49 keV | BM08, BM20 | below BM25 (5.0), BM31 (4.9), at BM23's edge (4.5) |
| Ba | L3 / K | 5.25 / 37.4 keV | BM20 (L3, HERFD); BM23, BM08 (K) | L3 EXAFS cut by La L3 236 eV above |
| Ta | L3 / K | 9.88 / 67.4 keV | BM23, BM08 (K) | L3 EXAFS cut by Ga K |
Edge energies from standard tables; the beamline ranges from the ESRF pages.