Lithium silicate (Li4SiO4) sputtering targets from Infinita Materials deliver a high-purity lithium orthosilicate ceramic engineered to deposit lithium-ion-conductive thin films. The material combines a stable oxide lattice with favourable lithium-ion transport characteristics, making it a preferred source for solid-state battery electrolyte research and related ceramic coating work. Each target is supplied with documented purity, dimensional tolerance, and density specifications suited to both R&D and pilot-scale deposition systems.
Lithium silicate (Li₄SiO₄) is a crystalline ceramic composed of isolated SiO₄ tetrahedra charge-balanced by Li⁺ ions, providing pathways that support lithium-ion mobility. It is an electrically insulating, diamagnetic material with good chemical stability, moderate thermal conductivity, and a melting point near 1256 °C. Because Li₄SiO₄ is insulating, it is typically supplied as a pressed and sintered ceramic target for RF or RF-reactive magnetron sputtering. Thin-film deposition enables controlled lithium-containing ceramic layers for solid-state battery research, passivation and diffusion barriers, and optical coatings. Li₄SiO₄ films are also studied as model lithium ceramics for fusion-energy breeder materials, where controlled thickness and composition are important for evaluating material behaviour.
Answer: Due to its excellent ionic conductivity and stability properties, lithium Silicate is commonly used in sputtering for thin-film deposition in electronics, optical coatings, and battery technologies.
Answer: Li₄SiO₄ offers high thermal stability and ion conductivity and can improve the performance of lithium-based devices, making it ideal for applications in energy storage and optical films.
Answer: Applications in lithium-ion batteries, solid-state electrolytes, solar cells, and optical coatings benefit from the properties of Li₄SiO₄ sputtered films.
Answer: Typical sputtering conditions include a low-energy argon plasma, with targets operating at room temperature to maintain the material's integrity and avoid degradation during deposition.
Answer: Challenges include its potential reactivity with moisture and the need for precise control of deposition rates to achieve high-quality films for specific applications.
Lithium silicate (Li₄SiO₄) is a crystalline ceramic composed of isolated SiO₄ tetrahedra charge-balanced by Li⁺ ions, providing pathways that support lithium-ion mobility. It is an electrically insulating, diamagnetic material with good chemical stability, moderate thermal conductivity, and a melting point near 1256 °C. Because Li₄SiO₄ is insulating, it is typically supplied as a pressed and sintered ceramic target for RF or RF-reactive magnetron sputtering. Thin-film deposition enables controlled lithium-containing ceramic layers for solid-state battery research, passivation and diffusion barriers, and optical coatings. Li₄SiO₄ films are also studied as model lithium ceramics for fusion-energy breeder materials, where controlled thickness and composition are important for evaluating material behaviour.
Key Properties of Lithium Silicate
Property
Value
Significance
Chemical formula
Li4SiO4
Defines the 4:1:4 lithium-silicon-oxygen stoichiometry that distinguishes orthosilicate from metasilicate and disilicate phases
Molar mass
~119.85 g/mol
Basis for stoichiometric target fabrication calculations and deposition rate modelling
CAS number
13453-84-4
Unique substance identifier used for procurement, safety documentation, and regulatory tracking
Density (theoretical)
~2.40 g/cm3
Benchmark against which sintered target density and porosity are quality-controlled
Melting point
~1256 C
Indicates thermal stability of the ceramic under sustained plasma bombardment during sputtering
Crystal structure
Monoclinic, isolated SiO4 tetrahedra
Open lattice geometry that supports lithium-ion migration pathways relevant to electrolyte performance
Magnetic behavior
Diamagnetic
Ensures compatibility with magnetron confinement fields without distorting plasma geometry
Thermal conductivity
~3-5 W/m-K
Governs thermal gradient handling and cracking resistance of the target under sputtering power load
Types & Grades of Lithium Silicate
Lithium Silicate targets are offered in standard catalogue sizes and grades, with custom purity, density, and geometry available for OEM and R&D deposition systems.
Grade / Form
Typical Purity
Key Features / Uses
Standard sputtering disc
99.9%
Cost-effective grade for early-stage thin film electrolyte development and process screening
High-purity electronic grade
99.99%
Reduced ionic contamination for battery-grade solid electrolyte film deposition
Ultra-high purity grade
99.999%
Trace-metal-free material for fundamental lithium-ion conductivity and interface research
Bonded target assembly
99.9% – 99.99%
Indium or elastomer bonded to a copper backing plate for high-power magnetron sputtering systems
Custom block/plate target
99.9% – 99.99%
Rectangular geometry for in-line and linear sputtering systems requiring large-area uniform coatings
Applications of Lithium Silicate
Sputtered films of Lithium Silicate support demanding roles across research and production applications where this material’s specific structural, electronic, or optical properties are the key requirement.
Industry
Application
Function
Battery and energy storage
All-solid-state lithium battery electrolyte films
Forms a lithium-ion conductive thin-film layer separating anode and cathode in solid-state cells
Semiconductor and electronics
Passivation and dielectric coatings
Provides an insulating diffusion-barrier layer on device surfaces
Nuclear and fusion research
Lithium ceramic breeder blanket studies
Serves as a thin-film analogue for modelling lithium ceramic breeder behaviour
Optics and photonics
Optical coating layers
Contributes a low refractive index lithium-silicate layer within multilayer optical stacks
Sensors
Solid electrolyte films for ionic sensing
Enables a lithium-ion conductive sensing layer in thin-film sensor devices
Materials research
Ionic conductivity and interface studies
Acts as a controlled substrate for studying lithium-ion transport mechanisms in thin films
Why Partner with Infinita Materials?
Technical Depth: in-house quality control with ICP-MS and XRF purity verification, density measurement, and full certificates of analysis on every target.
Global Logistics: reliable supply from single R&D-scale targets to production-line volumes, with established international shipping.
Responsive Support: direct access to materials engineers for grade, bonding, and geometry selection, and process-compatibility questions.
Take the Next Step
Infinita Materials fabricates Lithium Silicate sputtering targets engineered to the purity, density, and geometry your deposition process requires. Whether the requirement is a standard catalogue target or a custom size, purity, or bonded assembly, our team can help match the right specification to your deposition system. Request a quote or speak with our technical team to discuss your target specification.
Other Related Product to Lithium Silicate, Li4SiO4
Due to its excellent ionic conductivity and stability properties, lithium Silicate is commonly used in sputtering for thin-film deposition in electronics, optical coatings, and battery technologies.
Li₄SiO₄ offers high thermal stability and ion conductivity and can improve the performance of lithium-based devices, making it ideal for applications in energy storage and optical films.
Applications in lithium-ion batteries, solid-state electrolytes, solar cells, and optical coatings benefit from the properties of Li₄SiO₄ sputtered films.
Typical sputtering conditions include a low-energy argon plasma, with targets operating at room temperature to maintain the material's integrity and avoid degradation during deposition.
Challenges include its potential reactivity with moisture and the need for precise control of deposition rates to achieve high-quality films for specific applications.
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