Solid-State Electrolyte Ionic Conductivity Atlas: Measured Room-Temperature Li-Ion Conductivity

1,127 measured room-temperature conductivities for 729 lithium solid electrolytes, merged from two curated, openly licensed datasets. Only 120 compositions clear the 1 mS/cm mark that solid-state batteries are usually held to, and most of them are sulfides.
Data snapshot:
729
Distinct compositions
1,127 measurements
120
Reach 1 mS/cm (10⁻³ S/cm) at room temperature
13
Reach 10 mS/cm, on par with liquid electrolytes
2.6×10⁻⁵
Median conductivity, S/cm

Key findings

  • LGPS and Argyrodite lead. Their median compositions reach 4.5×10⁻³ S/cm and 1.6×10⁻³ S/cm; 81% and 59% of them clear 1 mS/cm.
  • Anion chemistry splits the field. 42% of sulfides and selenides exceed 1 mS/cm, against 6% of oxides and 14% of halides.
  • The workhorse oxides sit about a decade lower. Garnets (LLZO-type) have a median of 1.4×10⁻⁴ S/cm and NASICONs (LATP-type) 1.0×10⁻⁴ S/cm. Only 4% of garnets and 6% of NASICONs clear 1 mS/cm.
  • Conductivity spans more than ten orders of magnitude, up to 2.8×10⁻² S/cm (Li9.54Si1.74P1.44S11.4Cl0.3O0.3). The lowest values, below about 10⁻¹² S/cm, are extrapolated to room temperature from high-temperature measurements.
Part 1

Conductivity by structural family

Each dot is one composition at its room-temperature conductivity (log scale). The dark tick marks the family median; the dashed line is 1 mS/cm. Values below 10⁻¹³ S/cm (all room-temperature extrapolations) are drawn at the left edge. Family labels come from the OBELiX curators. Compositions without one are grouped at the bottom.

Room-temperature Li-ion conductivity by structural family
10⁻¹²10⁻¹⁰10⁻⁸10⁻⁶10⁻⁴10⁻²1 mS/cmLGPS 26LGPS median: 4.5×10⁻³ S/cmArgyrodite 46Argyrodite median: 1.6×10⁻³ S/cmGarnet 86Garnet median: 1.4×10⁻⁴ S/cmNASICON 96NASICON median: 1.0×10⁻⁴ S/cmPerovskite 57Perovskite median: 1.0×10⁻⁴ S/cmAnti-perovskite 4Anti-perovskite median: 1.1×10⁻⁵ S/cmOther sulfide 14Other sulfide median: 4.2×10⁻⁶ S/cmThio-LISICON 24Thio-LISICON median: 2.5×10⁻⁶ S/cmHalide 16Halide median: 2.2×10⁻⁶ S/cmLISICON 23LISICON median: 5.1×10⁻⁷ S/cmHydride 3Hydride median: 1.4×10⁻⁷ S/cmNitride 3Nitride median: 5.0×10⁻⁸ S/cmOther oxide 23Other oxide median: 1.5×10⁻⁹ S/cmOther 21Other median: 6.3×10⁻¹⁰ S/cmNo family label 287No family label median: 3.3×10⁻⁶ S/cmIonic conductivity at room temperature (S/cm)
Number after each family = compositions. Hover a dot for the composition.
Conductivity by structural family
GroupCompositionsMedian σMiddle 50%Best σ≥ 1 mS/cmBest composition
LGPS264.5×10⁻³2.4×10⁻³ – 7.2×10⁻³2.5×10⁻²81%Li9.54Si1.74P1.44S11.7Cl0.3
Argyrodite461.6×10⁻³1.9×10⁻⁴ – 2.8×10⁻³5.5×10⁻³59%Li6.7P0.3Ge0.7S5I
Garnet861.4×10⁻⁴1.2×10⁻⁵ – 4.6×10⁻⁴1.4×10⁻³4%Fe0.19La2.95Li5.57Zr2O12
NASICON961.0×10⁻⁴3.8×10⁻⁶ – 2.7×10⁻⁴3.4×10⁻³6%Li1.2Ti1.8Al0.2P3O12
Perovskite571.0×10⁻⁴1.1×10⁻⁵ – 6.2×10⁻⁴1.5×10⁻³9%La0.55Li0.45Ti0.9Al0.1O3
Anti-perovskite41.1×10⁻⁵2.6×10⁻⁶ – 1.9×10⁻⁴2.5×10⁻²25%Li3ClO
Other sulfide144.2×10⁻⁶6.0×10⁻⁸ – 1.6×10⁻⁵8.3×10⁻⁴0%Li5Zn0.5P2S8
Thio-LISICON242.5×10⁻⁶3.0×10⁻⁸ – 7.2×10⁻⁴8.5×10⁻³25%Li10Ge0.95Si0.05P2S12
Halide162.2×10⁻⁶1.5×10⁻⁷ – 1.1×10⁻⁴2.0×10⁻³19%Li3InCl6
LISICON235.1×10⁻⁷3.4×10⁻¹³ – 3.8×10⁻⁶3.8×10⁻⁵0%Li14.8Ge3.4W0.6O16
Hydride31.4×10⁻⁷3.5×10⁻⁸ – 1.2×10⁻⁶1.0×10⁻⁵0%Li12N8H16I4
Nitride35.0×10⁻⁸1.6×10⁻⁸ – 4.6×10⁻⁶4.2×10⁻⁴0%Li3N
Other oxide231.5×10⁻⁹3.8×10⁻¹¹ – 2.6×10⁻⁸1.6×10⁻³4%Li8Ta16P8O64
Other216.3×10⁻¹⁰9.1×10⁻¹² – 8.1×10⁻⁷1.2×10⁻⁴0%Li4.8Sn4.8S12
No family label2873.3×10⁻⁶5.8×10⁻¹⁰ – 4.5×10⁻⁴2.8×10⁻²16%Li9.54Si1.74P1.44S11.4Cl0.3O0.3
Part 2

Sulfides vs oxides vs halides

The same data grouped by anion chemistry, which we assign from the formula: any S or Se makes a sulfide/selenide, then halide (no O), then oxide, nitride and hydride.

Conductivity by anion chemistry
10⁻¹²10⁻¹⁰10⁻⁸10⁻⁶10⁻⁴10⁻²1 mS/cmSulfide / selenide 207Sulfide / selenide median: 5.5×10⁻⁴ S/cmOther 4Other median: 1.8×10⁻⁴ S/cmOxide 466Oxide median: 1.1×10⁻⁵ S/cmHalide 37Halide median: 4.3×10⁻⁶ S/cmNitride 11Nitride median: 1.0×10⁻⁷ S/cmHydride 4Hydride median: 3.7×10⁻⁸ S/cmIonic conductivity (S/cm)
Distribution of all compositions
050100150200<10⁻¹³10⁻¹²10⁻¹⁰10⁻⁸10⁻⁶10⁻⁴10⁻²
Compositions per decade of conductivity.
Conductivity by anion chemistry
GroupCompositionsMedian σMiddle 50%Best σ≥ 1 mS/cmBest composition
Sulfide / selenide2075.5×10⁻⁴6.3×10⁻⁶ – 3.2×10⁻³2.8×10⁻²42%Li9.54Si1.74P1.44S11.4Cl0.3O0.3
Other41.8×10⁻⁴3.5×10⁻⁵ – 7.8×10⁻⁴1.1×10⁻³25%Li2.33PSi0.17
Oxide4661.1×10⁻⁵8.3×10⁻⁹ – 2.8×10⁻⁴2.5×10⁻²6%Li3ClO
Halide374.3×10⁻⁶4.0×10⁻⁸ – 7.6×10⁻⁴3.0×10⁻³14%Li3.01ScCl6
Nitride111.0×10⁻⁷3.2×10⁻⁹ – 6.8×10⁻⁶4.2×10⁻⁴0%Li3N
Hydride43.7×10⁻⁸9.5×10⁻⁹ – 2.4×10⁻⁷1.3×10⁻⁶0%LiY(BH4)4
Leaderboard

The 30 most conductive solid electrolytes in the dataset

Ranked by measured room-temperature conductivity. Where several reports exist for the same composition, we use the median. Every value links to its source paper.

Top 30 by conductivity
#Compositionσ (S/cm)FamilyChemistrySourceReference
1Li9.54Si1.74P1.44S11.4Cl0.3O0.32.8×10⁻²—Sulfide / selenideMcHaffie et al.10.1021/acs.chemmater.0c02351
2Li3ClO2.5×10⁻²Anti-perovskiteOxideOBELiX10.1039/c3ta15087a
3Li9.54Si1.74P1.44S11.7Cl0.32.5×10⁻²LGPSSulfide / selenideOBELiX10.1038/nenergy.2016.30
4Li5.52PS4.3ClBr0.72.4×10⁻²—Sulfide / selenideMcHaffie et al.10.1021/acs.chemmater.0c04650
5Li6.16Si0.62Sb0.38S5.07I0.931.9×10⁻²—Sulfide / selenideMcHaffie et al.10.1021/jacs.9b08357
6Li10Ge(P0.925Sb0.075)2S121.7×10⁻²—Sulfide / selenideMcHaffie et al.10.1021/acs.chemmater.9b04764
7Li5.64PS4.5ClBr0.51.7×10⁻²—Sulfide / selenideMcHaffie et al.10.1021/acs.chemmater.0c04650
8Li10.3Ge1.35P1.65S121.4×10⁻²LGPSSulfide / selenideMcHaffie et al., OBELiX10.1039/c4ta05231e
9Li10Ge0.775Sn0.225P2S121.4×10⁻²LGPSSulfide / selenideOBELiX10.1021/acs.chemmater.8b00266
10Li5.58PS4.7ClBr0.31.2×10⁻²—Sulfide / selenideMcHaffie et al.10.1021/acs.chemmater.0c04650
11Li10GePS121.2×10⁻²—Sulfide / selenideMcHaffie et al.10.1039/C4TA05231E
12Li10.3Sn0.27Si1.08P1.65S121.1×10⁻²LGPSSulfide / selenideMcHaffie et al., OBELiX10.1021/acs.chemmater.7b00886
13Li5.35Ca0.1PS4.5Cl1.551.0×10⁻²—Sulfide / selenideMcHaffie et al.10.1021/acs.chemmater.0c03090
14Li6.28Si0.45Sb0.55S5.04I0.961.0×10⁻²—Sulfide / selenideMcHaffie et al.10.1021/jacs.9b08357
15Li5.5PS4.5Cl1.59.3×10⁻³—Sulfide / selenideMcHaffie et al.10.1002/anie.201814222
16Li10.5Ge1.5P1.5S128.7×10⁻³LGPSSulfide / selenideOBELiX10.1039/c4ta05231e
17Li10Ge0.95Si0.05P2S128.5×10⁻³Thio-LISICONSulfide / selenideOBELiX10.1016/j.jpowsour.2014.07.159
18Li5.3Ca0.1PS4.5Cl1.57.8×10⁻³—Sulfide / selenideMcHaffie et al.10.1021/acs.chemmater.0c03090
19Li10GeP2S127.6×10⁻³LGPSSulfide / selenideMcHaffie et al., OBELiX10.1039/c4ta05231e|10.1021/acs.chemmater.7b00886
20Li10Ge0.415Sn0.585P2S127.4×10⁻³LGPSSulfide / selenideOBELiX10.1021/acs.chemmater.8b00266
21Li5.55Ca0.1PS4.75Cl1.256.8×10⁻³—Sulfide / selenideMcHaffie et al.10.1021/acs.chemmater.0c03090
22Li10.3Si1.35P1.65S126.5×10⁻³LGPSSulfide / selenideMcHaffie et al., OBELiX10.1039/c4fd00143e
23Li10(Ge0.776Sn0.224)P2S126.5×10⁻³—Sulfide / selenideMcHaffie et al.10.1021/acs.chemmater.8b00266
24Li20Ge1.32Sn0.66P4S246.5×10⁻³—Sulfide / selenideMcHaffie et al., OBELiX10.1021/jacs.0c10735
25Li6.22Ge0.43Sb0.57S5I6.3×10⁻³—Sulfide / selenideMcHaffie et al.10.1021/jacs.9b08357
26Li10.3Si1.27P1.73S125.6×10⁻³LGPSSulfide / selenideOBELiX10.1039/c4fd00143e
27Li1.421Al0.421Ti1.579(PO4)35.6×10⁻³—OxideMcHaffie et al.10.1016/j.solidstatesciences.2016.08.011
28Li1.312Al0.407Ti1.592(PO4)35.6×10⁻³—OxideMcHaffie et al.10.1016/j.solidstatesciences.2016.08.011
29Li6.7P0.3Ge0.7S5I5.5×10⁻³ArgyroditeSulfide / selenideOBELiX10.1021/jacs.8b10282
30Li9.81Sn0.81P2.19S125.5×10⁻³LGPSSulfide / selenideMcHaffie et al., OBELiX10.1039/c4fd00143e
Explore

Search all 729 compositions

729 of 729 compositions
Measured room-temperature Li-ion conductivity, sorted highest first
Compositionσ (S/cm)FamilyChemistrySpace groupSourceReference
Li9.54Si1.74P1.44S11.4Cl0.3O0.32.8×10⁻²—Sulfide / selenide—McHaffie et al.10.1021/acs.chemmater.0c02351
Li3ClO2.5×10⁻²Anti-perovskiteOxidePm-3mOBELiX10.1039/c3ta15087a
Li9.54Si1.74P1.44S11.7Cl0.32.5×10⁻²LGPSSulfide / selenideP42/nmcOBELiX10.1038/nenergy.2016.30
Li5.52PS4.3ClBr0.72.4×10⁻²—Sulfide / selenide—McHaffie et al.10.1021/acs.chemmater.0c04650
Li6.16Si0.62Sb0.38S5.07I0.931.9×10⁻²—Sulfide / selenide—McHaffie et al.10.1021/jacs.9b08357
Li10Ge(P0.925Sb0.075)2S121.7×10⁻²—Sulfide / selenide—McHaffie et al.10.1021/acs.chemmater.9b04764
Li5.64PS4.5ClBr0.51.7×10⁻²—Sulfide / selenide—McHaffie et al.10.1021/acs.chemmater.0c04650
Li10.3Ge1.35P1.65S121.4×10⁻²LGPSSulfide / selenideP42/nmcMcHaffie et al., OBELiX (2 reports, median)10.1039/c4ta05231e
Li10Ge0.775Sn0.225P2S121.4×10⁻²LGPSSulfide / selenideP42/nmcOBELiX10.1021/acs.chemmater.8b00266
Li5.58PS4.7ClBr0.31.2×10⁻²—Sulfide / selenide—McHaffie et al.10.1021/acs.chemmater.0c04650
Li10GePS121.2×10⁻²—Sulfide / selenide—McHaffie et al.10.1039/C4TA05231E
Li10.3Sn0.27Si1.08P1.65S121.1×10⁻²LGPSSulfide / selenideP42/nmcMcHaffie et al., OBELiX (3 reports, median)10.1021/acs.chemmater.7b00886
Li5.35Ca0.1PS4.5Cl1.551.0×10⁻²—Sulfide / selenide—McHaffie et al.10.1021/acs.chemmater.0c03090
Li6.28Si0.45Sb0.55S5.04I0.961.0×10⁻²—Sulfide / selenide—McHaffie et al.10.1021/jacs.9b08357
Li5.5PS4.5Cl1.59.3×10⁻³—Sulfide / selenide—McHaffie et al.10.1002/anie.201814222
Li10.5Ge1.5P1.5S128.7×10⁻³LGPSSulfide / selenideP42/nmcOBELiX (2 reports, median)10.1039/c4ta05231e
Li10Ge0.95Si0.05P2S128.5×10⁻³Thio-LISICONSulfide / selenideP42/nmcOBELiX10.1016/j.jpowsour.2014.07.159
Li5.3Ca0.1PS4.5Cl1.57.8×10⁻³—Sulfide / selenide—McHaffie et al.10.1021/acs.chemmater.0c03090
Li10GeP2S127.6×10⁻³LGPSSulfide / selenideP42/nmcMcHaffie et al., OBELiX (8 reports, median)10.1039/c4ta05231e|10.1021/acs.chemmater.7b00886
Li10Ge0.415Sn0.585P2S127.4×10⁻³LGPSSulfide / selenideP42/nmcOBELiX10.1021/acs.chemmater.8b00266
Li5.55Ca0.1PS4.75Cl1.256.8×10⁻³—Sulfide / selenide—McHaffie et al.10.1021/acs.chemmater.0c03090
Li10.3Si1.35P1.65S126.5×10⁻³LGPSSulfide / selenideP42/nmcMcHaffie et al., OBELiX (3 reports, median)10.1039/c4fd00143e
Li10(Ge0.776Sn0.224)P2S126.5×10⁻³—Sulfide / selenide—McHaffie et al.10.1021/acs.chemmater.8b00266
Li20Ge1.32Sn0.66P4S246.5×10⁻³—Sulfide / selenideP42/nmcZMcHaffie et al., OBELiX (2 reports, median)10.1021/jacs.0c10735
Li6.22Ge0.43Sb0.57S5I6.3×10⁻³—Sulfide / selenide—McHaffie et al.10.1021/jacs.9b08357
Li10.3Si1.27P1.73S125.6×10⁻³LGPSSulfide / selenideP42/nmcOBELiX10.1039/c4fd00143e
Li1.421Al0.421Ti1.579(PO4)35.6×10⁻³—Oxide—McHaffie et al.10.1016/j.solidstatesciences.2016.08.011
Li1.312Al0.407Ti1.592(PO4)35.6×10⁻³—Oxide—McHaffie et al.10.1016/j.solidstatesciences.2016.08.011
Li6.7P0.3Ge0.7S5I5.5×10⁻³ArgyroditeSulfide / selenideF-43mOBELiX10.1021/jacs.8b10282
Li9.81Sn0.81P2.19S125.5×10⁻³LGPSSulfide / selenideP42/nmcMcHaffie et al., OBELiX (3 reports, median)10.1039/c4fd00143e
Li5.77PS5Br5.5×10⁻³—Sulfide / selenide—McHaffie et al.10.1021/acs.chemmater.9b05331
Li10.4Si1.43P1.57S125.2×10⁻³LGPSSulfide / selenideP42/nmcOBELiX10.1039/c4fd00143e
Li6.6P0.4Ge0.6S5I5.2×10⁻³ArgyroditeSulfide / selenideF-43mOBELiX10.1021/jacs.8b10282
Li5.7Ca0.15PS5Cl5.2×10⁻³—Sulfide / selenide—McHaffie et al.10.1021/acs.chemmater.0c03090
Li10.5Sn0.3Si1.2P1.5S125.1×10⁻³LGPSSulfide / selenideP42/nmcMcHaffie et al., OBELiX (2 reports, median)10.1021/acs.chemmater.7b00886
Li5.82PS4.7ClBr5.0×10⁻³—Sulfide / selenide—McHaffie et al.10.1021/acs.chemmater.0c04650
Li10(Ge0.416Sn0.584)P2S124.8×10⁻³—Sulfide / selenide—McHaffie et al.10.1021/acs.chemmater.8b00266
Li20Ge0.66Sn1.32P4S244.8×10⁻³—Sulfide / selenideP42/nmcZMcHaffie et al., OBELiX (2 reports, median)10.1021/jacs.0c10735
Li1.414Al0.511Ti1.489(PO4)34.7×10⁻³—Oxide—McHaffie et al.10.1016/j.solidstatesciences.2016.08.011
Li9.78Sn0.78P2.22S124.6×10⁻³LGPSSulfide / selenideP42/nmcOBELiX10.1039/c4fd00143e
Li9.86Sn0.84P2.16S124.4×10⁻³LGPSSulfide / selenideP42/nmcOBELiX10.1039/c4fd00143e
Li10.1Ge1.05P1.95S124.4×10⁻³Thio-LISICONSulfide / selenideP21/mOBELiX (2 reports, median)10.1149/1.1379028
Li6.07Si0.34Sb0.66S5.01I0.994.2×10⁻³—Sulfide / selenide—McHaffie et al.10.1021/jacs.9b08357
Li6PS4.8Se0.2Br3.9×10⁻³ArgyroditeSulfide / selenideF-43mMcHaffie et al., OBELiX (2 reports, median)10.1021/acs.inorgchem.8b02443
Li10SnP2S123.9×10⁻³LGPSSulfide / selenideP42/nmcMcHaffie et al., OBELiX (6 reports, median)10.1021/ja407393y
Li6PS4.1Se0.9Br3.8×10⁻³ArgyroditeSulfide / selenideF-43mMcHaffie et al., OBELiX (2 reports, median)10.1021/acs.inorgchem.8b02443
Li10Sn0.99P2.01S123.7×10⁻³LGPSSulfide / selenideP42/nmcOBELiX10.1039/c4fd00143e
Li9.9Sn0.9P2.1S123.6×10⁻³LGPSSulfide / selenideP42/nmcOBELiX10.1039/c4fd00143e
Li6PS4.6Se0.4Br3.6×10⁻³ArgyroditeSulfide / selenideF-43mMcHaffie et al., OBELiX (2 reports, median)10.1021/acs.inorgchem.8b02443
Li6PS4.7Se0.3Br3.6×10⁻³ArgyroditeSulfide / selenideF-43mMcHaffie et al., OBELiX (2 reports, median)10.1021/acs.inorgchem.8b02443
Context

Why 1 mS/cm is the line that matters

Liquid carbonate electrolytes in today’s lithium-ion cells conduct at around 10 mS/cm at room temperature. A solid electrolyte has to come within roughly an order of magnitude of that, usually stated as 1 mS/cm, before a solid-state cell can deliver useful power without heating. Sulfides clear that bar most often, but they are sensitive to moisture and can react with lithium metal. Oxides such as garnets are more robust, so much of the engineering effort goes into raising their conductivity through doping and densification.

Conductivity is only one requirement. Stability against the electrodes and processability matter too. For computed stability of candidate compositions, see the solid-state electrolyte screen.

Methods

How this atlas was built

  1. We merge two openly licensed, curated datasets of room-temperature lithium-ion conductivity (OBELiX and McHaffie et al.), keeping only lithium-containing compositions. Datasets that need a commercial licence, or that lack measurement temperatures, are not included.
  2. Compositions are matched on reduced formula. When a composition has several reports, we use the median log-conductivity. OBELiX formulas, stored per unit cell, are rescaled to the conventional formula unit for display.
  3. Below-detection OBELiX results (“below 10⁻¹⁰ S/cm”) are upper bounds, not measurements, and are left out. Some McHaffie values are extrapolated to room temperature from higher-temperature Arrhenius data.
  4. Structural family labels are the OBELiX curators’, also applied to McHaffie entries with the same composition. The anion chemistry is assigned by rule from the formula.
  5. Reported conductivities depend on synthesis, density and measurement setup. Treat each value as one report, not an intrinsic constant. Page built 2026-09-30.
Open data

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Every row behind this page (729 rows) as CSV, with source identifiers so each value can be traced back.

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LatticeGraph (2026). "Solid-State Electrolyte Ionic Conductivity Atlas: Measured Room-Temperature Li-Ion Conductivity." LatticeGraph Data Atlas, snapshot 2026-09-30 (warehouse 20260925T154847Z). https://latticegraph.com/atlas/solid-electrolyte-ionic-conductivity

Please also cite the original datasets listed under Sources.

Sources

Datasets and licences

  • Curated Li solid electrolytes with room-temperature conductivity, space group and expert family labels. 562 measurements used; 37 below-detection results (reported as "<10⁻¹⁰ S/cm") excluded from statistics.
    F. Therrien et al., Digital Discovery (2026), doi:10.1039/D5DD00441A.
    License: CC BY 4.0
  • 565 room-temperature conductivities measured by impedance spectroscopy and paired with ICSD structures. Low-conductivity entries are often extrapolated to room temperature from Arrhenius data.
    D. B. McHaffie et al., Digital Discovery (2025), doi:10.1039/D5DD00052A. Data: doi:10.22002/23mvv-6gk43.
    License: CC0 1.0
FAQ

Frequently asked questions

Which solid-state electrolytes have the highest lithium-ion conductivity?

In this dataset the most conductive solid electrolytes are sulfides from the LGPS (Li10GeP2S12-type) and argyrodite (Li6PS5X-type) families. They make up 27 of the top 30 and reach about 10⁻² S/cm (10 mS/cm) at room temperature. The highest value is Li9.54Si1.74P1.44S11.4Cl0.3O0.3 at 2.8×10⁻² S/cm. 13 of 729 compositions reach 10 mS/cm or more.

What is a good ionic conductivity for a solid electrolyte?

A common target is 1 mS/cm (10⁻³ S/cm) at room temperature. Conventional liquid carbonate electrolytes reach about 10 mS/cm. 120 of the 729 compositions here (16%) reach 1 mS/cm. The median is 2.6×10⁻⁵ S/cm.

Are sulfide electrolytes more conductive than oxides?

Yes, by a wide margin. The median sulfide or selenide in this dataset reaches 5.5×10⁻⁴ S/cm, against 1.1×10⁻⁵ S/cm for oxides, and 42% of sulfides exceed 1 mS/cm compared with 6% of oxides. Oxides trade conductivity for better stability in air and against lithium metal.

What is the ionic conductivity of garnet LLZO?

Garnet-type electrolytes (Li7La3Zr2O12 and its Al-, Ga-, Ta- and Nb-doped variants) have a median room-temperature conductivity of 1.4×10⁻⁴ S/cm across 86 compositions here. The best reach 1.4×10⁻³ S/cm. Doping stabilises the more conductive cubic phase.

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