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Sigma-Aldrich

Tantalum-doped lithium lanthanum zirconium oxide

new
greener alternative

powder, battery grade

Synonym(s):

LLZTO, Ta-LLZO, Ta-doped lithium lanthanum zirconate

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About This Item

Empirical Formula (Hill Notation):
Li6.2Al0.2La3Zr1.8Ta0.2O12
Molecular Weight:
857.53
UNSPSC Code:
12352303

grade

battery grade

Quality Level

100

Assay

≥99.0% trace metals basis

form

powder

composition

Li6.2Al0.2La3Zr1.8Ta0.2O12

greener alternative product characteristics

Design for Energy Efficiency
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sustainability

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particle size

1-2 μm

conductivity

0.01-0.1 mS/cm ((ionic conductivity, cold-pressed pellet at room temperature))

density

5.25 g/cm3 ((lit.))

application(s)

battery manufacturing

greener alternative category

Enabling

General description

Tantalum-doped lithium lanthanum zirconium oxide (LLZTO) is a ceramic electrolyte material (lithium ion conductor) and a promising candidate to act as a solid electrolyte for lithium-ion batteries. We offer LLZTO with average particle size of 1-2 µm and high ionic conductivity (10-5 to 10-4 S/cm)
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Application

Solid electrolytes conduct lithium ions at room temperature and can potentially replace conventional organic liquid electrolytes, which are flammable and toxic. Tantalum-doping improves the electrochemical stability of lithium lanthanum zirconate (LLZO) by stabilizing the cubic phase at room temperature. We offer Ta-doped LLZTO with compositional uniformity, a small particle size (average D50 1-2 µm), and low aggregation to facilitate densification and ionic transport

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H314,H335

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW4476

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Adrien Méry et al.
Materials (Basel, Switzerland), 14(14) (2021-07-25)
All-solid-state lithium batteries (ASSLB) are very promising for the future development of next generation lithium battery systems due to their increased energy density and improved safety. ASSLB employing Solid Polymer Electrolytes (SPE) and Solid Composite Electrolytes (SCE) in particular have
Pavan Badami et al.
ACS applied materials & interfaces, 12(43), 48580-48590 (2020-10-30)
Tantalum-doped garnet (Li6.5La3Zr1.5Ta0.5O12, LLZTO) is a promising candidate to act as a solid electrolyte in all-solid-state batteries owing to both its high Li+ conductivity and its relatively high robustness against the Li metal. Synthesizing LLZTO using conventional solid-state reaction (SSR)
Fundamentals of Electrolytes for Solid-State Batteries: Challenges and Perspectives
Wang L, et al.
Frontiers in materials, 7 (2020)

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