Name: LLZO Lithium Lanthanum Zirconium Oxygen Solid Electrolyte (3um) Li7La3Zr2O12
Brand: Canrud
Price: 54.37 USD

Question 1

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Yes.

Question 2

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Ionic conductivity is on the product detail page of the official website. Some nano-scale modifications have been done, making water and air resistance slightly better. Specific details are not convenient to disclose.

Question 3

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The main differences between LLZO lithium lanthanum zirconium oxide solid electrolyte (400nm) and (3um) are particle size, tap density and powder physical properties. The 400nm product has finer particles, low tap density and large specific surface area, which is suitable for applications requiring high dispersion or densification of sintered precursors, while the 3μm product has larger particles and high tap density, which is conducive to powder processing and molding. Both are comparable in ionic conductivity, about 2 mS/cm. Therefore, the choice of which product depends mainly on the specific experiment or application of the powder particle size and accumulation performance requirements.

Question 4

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They must not be exposed to water or oxygen, though short exposures are tolerable. The surface has a passivation layer that must ultimately be polished off before gold sputtering. After polishing, transfer quickly, pump down and replace the atmosphere before sputtering gold.

Question 5

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It depends on the intended use. If it is for assembling pellet cells for electrical testing, the powder needs to be pressed into green bodies, then sintered into ceramics, and finally ground and polished for use. The green body can be made without adding other substances, or sintering aids, binders, etc. can be added. If used as a filler for polymer composite electrolytes, it can be added directly, or the particle size can be controlled according to experimental requirements before use.

Question 6

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Because this electrolyte pellet has a high lithium content, its color is deep (less lithium volatilization); the white ones have too much lithium volatilization and their ionic conductivity is not high.

Question 7

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You can also coat conductive silver paste; pay attention to the composition of the conductive silver paste.

Question 8

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Yes, we need requirements for particle size, solids content, and solvent. Minimum order quantity is 5 kg, and the shelf life is one month.

Question 9

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Oxide solid electrolytes like LLZO have poor interfacial stability; their surface residual base and the highly catalytic La element inside make them prone to promoting PVDF self-coupling defluorination side reactions when compounded with PVDF-type polymers. Adding EC can mitigate this side reaction, as EC reacts with the residual base first.

Question 10

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Among the different types of electrolytes, oxide solid electrolytes have better resistance to water and oxygen. In particular, LATP, LAGP, and NZSPO have high water stability; LLZO, LLZTO, and LLTO are secondary. Therefore many manufacturers now perform water-resistant modification on LLZO.

Question 11

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The sintering temperature of LLTO is generally around 1100–1300°C; the optimal sintering temperature needs to be determined experimentally — we can only provide a rough reference range.

Question 12

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Confirm the voltage window of this fluoride. If it is conventional, LPSC or LLZO are fine; if it is high-voltage, prioritize LLZO.

Question 13

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Demand for LLZO-coated separators is currently low; they require customization. The minimum order quantity for customization is 5,000 m².

Question 14

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Which system do you want to work on? Sulfide or oxide? For oxide systems use LLZO; for sulfide systems use LPSC.

Question 15

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Using LLZO would be better; for electrolyte pellets use LLZTO. Relatively speaking, LLZO is somewhat more stable against lithium metal than LAGP or LATP.

Question 16

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The theoretical silicon suboxide ratio is 1:1; in practice there will be deviations.

Question 17

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None at present; existing Li3InCl6 (lithium indium chloride) is 1–3 µm. LZOC (lithium zirconium oxychloride) is 1–10 µm.

Question 18

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Oxide electrolyte slurries are currently available for sale: LATP, LLZO, and LLZNTO slurries. Solid content can be customized from 15% to 40%, and there are minimum order quantity requirements. For details, please refer to the official website.

Question 19

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We are very sorry, we have not tested the oxygen content value.

Question 20

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The oxide electrolyte powders we currently sell are LATP, LAGP, LLZO, LLTO, LALZO, LLZNTO, NZSPO, and LZSPO; the oxide ceramic sheets available are LATP, LAGP, LLZTO, and NZSPO. Standard thickness is 1 mm, diameters range from 10 to 15 mm, and custom specifications can be discussed with customer service.

Question 21

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None

Question 22

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LATP solid electrolyte coating separators can theoretically be used with liquids. (If the anode is lithium metal, the LATP-coated side should face the cathode)

Question 23

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As a polymer electrolyte matrix, it is combined with other components, for example lithium salts, fillers, polymers, etc.

Question 24

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There are no pure LLZO electrolyte pellets; there are LLZTO pellets, which is LLZO doped with tantalum, and its performance is better than undoped LLZO.

Question 25

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"1~3um" represents the particle size range of the sulfide LPSCI lithium ion solid electrolyte powder, I .e. the size distribution of most particles is between 1 and 3 microns. This is obtained by synthesis and refinement process control, not the result of sieve classification. This interpretation is inferred based on information in the knowledge base about particle size descriptions and preparation processes.

Question 26

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Comparing solvent polarity, sulfide electrolytes are more stable in nonpolar solvents.

Question 27

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LAGP, LATP, and NZSPO are water-stable. LLZO and LLTO are slightly sensitive to moisture; they can be exposed to air for short periods in a low-humidity room, but prolonged exposure will have some effect.

Question 28

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There is currently no such product.

Question 29

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If lithium salt is added, evaporation must be done in a glovebox; lithium salts must not contact water, as they are hygroscopic and deliquescent.

Question 30

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It is not a polymer. It is a sintered ceramic oxide and can be used directly.

Question 31

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Among these three separators, the most suitable for high-rate batteries are:

✅Double-sided single-coated ceramic separator (2μm CCS 9μm PE 2μm CCS)

Followed:

🟡LATP solid electrolyte coating separator GMSS01(L2 9 2um) -if its ionic conductivity is indeed effectively utilized, the future potential is greater, but the current process maturity may not be as good as ceramic coating.

❌Meta-aramid coated isolation film (9μm PE 3μm aramid)-Although the safety is high, but because of the aramid itself non-ionic conductor, easy to cause ion transmission obstacles, is not conducive to high-rate discharge.

Therefore, it is recommended to choose a double-sided ceramic coated separator, which maintains good ion transmission while improving thermal stability and wettability, and is currently the most balanced and widely used solution for high-rate batteries.

Question 32

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We are very sorry — we really do not know the sintering conditions. Different companies have different sintering conditions, and these process parameters are kept confidential by the companies. A tubular furnace at 900°C for 10 h with atmosphere control is provided to the customer as a reference; oxygen atmosphere control is required.

Question 33

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Electrolyte must be added, because this is not a pure solid electrolyte membrane; the intermediate base film is polyethylene (PE), which requires electrolyte to transport lithium ions.

Question 34

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Sulfide electrolytes are synthesized as plates; after refinement processes to control particle size, they are not sieved.

Question 35

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Different manufacturers and preparation processes; purity is all 99.9%. Can be used as precursor materials for sulfide electrolytes or cathodes for Li–S batteries. Specific electrochemical performance has not been tested and is unclear.

Question 36

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Not used as the primary electrolyte layer; it is generally used as an ion-conducting additive in the cathode. It can be directly paired with cathode materials such as LCO and NCM622, and the cathode material surface does not need coating.

Question 37

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Different sizes, different manufacturers, different production processes.

Question 38

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Yes

Question 39

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At present, there are none.

Question 40

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Polyethylene oxide (PEO) is a polymeric substrate that needs to be dissolved in a solvent, have lithium salt added, and then be dried into a film. It cannot be directly pressed from powder.

Question 41

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PEO itself is very stable in air, but it is generally used mixed with lithium salts, which are hygroscopic and absorb water; LATP is stable in air.

Question 42

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Store in a cool, dry place, sealed.

Question 43

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Currently there are no experimental conditions for this

Question 44

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It's the molar ratio.

Question 45

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Isopropanol; it’s better to dry the solvent first using molecular sieves.

Question 46

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Polymer electrolyte base materials are PEO and PVDF-HFP powders; you need to cast the films yourself.

Question 47

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Use fiberglass/regular PE film/alumina ceramic separator, or for all-solid-state use NZSPO.

Question 48

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What is the purpose of the experiment? For preparing composite electrolyte membranes, choose the solvent based on the lithium salt used; you can consider DMAC   acetone. Of course, for specific solvent selection and usage, consult relevant literature for your experiment.

Question 49

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Prepared by the dry method.

Question 50

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The ionic conductivity of the solid electrolyte can be tested directly on pressed pellets. When assembling an all-solid-state battery, it is often mixed with the cathode in a certain ratio to form a composite cathode and is not used directly as the electrolyte layer. The electrolyte layer commonly uses LPSC, the anode uses a lithium–indium alloy, and a mold cell is assembled.

Question 51

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Press the dry powder into green bodies in a steel die at 250–500 MPa, cover with parent powder, sinter in an argon-atmosphere furnace at 1200°C for 2 h, then grind the sintered plates.

Question 52

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This slurry is oil-based; the solvent is NMP. (Of the slurries currently sold, only the LLTO one is water-based)

Question 53

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Only polymer matrix powder, no finished polymer film.

Question 54

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Yes, it is stable in air and moisture; it just depends on whether other materials in the experiment require environmental control.

Question 55

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The solid content varies between different products; please check the official website for specific parameters

Question 56

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NASICON-type solid electrolyte, such as Na₃Zr₂Si₂PO₁₂.Kaolinite-based solid electrolyte, which is more suitable for aqueous zinc-ion batteries.

Question 57

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Sulfide and halide electrolyte systems can use lithium-indium as the negative electrode, but oxide systems are more suitable for graphite and low-silicon negative electrodes.

Question 58

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Symmetric cells generally do not add electrolyte; if it is an all-solid-state cell, to test performance you can add a little.

Question 59

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The information on the official website is what it is; if it's not there, it's not there.

Question 60

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Solid-state-specific carbon-group anodes are still under development; currently there are no such products. For solid-state-specific lithium metal anodes, lithium–indium alloy is available at present.

Question 61

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Currently there is niobate-coated NCM811 and lithium borate-coated NCM811; niobate-coated NCM811 is used more widely and feedback is good. There are fewer usage data for lithium borate-coated NCM811.

Question 62

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If it needs firing, a binder must also be added.

Question 63

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Particle size analyzer measured; under conditions of a drying oven with a dew point below -50°C, short-term rapid testing is fine.

Question 64

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This separator is composed of a PE base film, an alumina coating, and a LATP oxide electrolyte coating, and does not contain any lithium salts.

LLZO Lithium Lanthanum Zirconium Oxygen Solid Electrolyte (3um) Li7La3Zr2O12

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