Beneq ALD solutions improve Li-ion batteries

Energy Storage

Atomic layer deposition offers new ways to improve the performance of Li-ion batteries. ALD coatings have been applied in Li-ion batteries on electrodes and separators, and as solid state electrolytes. The ALD films improve capacity, power density, cycle life, rate capability and cycling performance of lithium-ion battery packs.

Very thin Al2O3 passivation layers improve also the capacity retention of lithium-ion batteries. For example a physical protecting barrier layer with an ultra-thin ALD layer deposited on the cathode has been tested to improve battery stability by suppressing side-reactions between the electrode and the electrolyte.

The demonstrated benefits include improved P/E ratio, reduced impedance, higher residual capacity after 500 cycles and increased cycling resistance. High aspect ratio elecrodes can also substantially improve the capacitance of supercapacitors.

Cases

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Application examples

  • Ultimate moisture barriers for OLED micro-displays from Beneq

    Encapsulation of OLED microdisplays

    Beneq developed a thin-film encapsulation nanolaminate coating for a leading Asian OLED microdisplay manufacturer to enable long lifetime for their microdisplays.  
  • Lumineq EL40S electroluminescent display by Beneq

    Insulator for thin film electroluminescent displays

    An ALD nanolaminate film was developed for Lumineq displays to create a fully pin-hole free thin film insulator layer.
  • Transparent electrode for displays by Beneq ALD

    Top electrode for transparent display

    Beneq developed an ALD Transparent Conductive Oxide (TCO) for Lumineq's electroluminescent displays to replace the sputtered IDO that was used in the transparent top electrode.
  • ALD is the ultimate moisture barrier for PCBs

    Moisture protection of PCBs

    Beneq developed a low-temperature ALD moisture barrier solution for a leading supplier of electronics for personal safety monitoring to protect the sensitive circuit board components from moisture.
  • Beneq FBR ALD reactor for moisture barriers of phospor powder

    Encapsulation of phosphor powder

    Beneq provided a moisture barrier solution using ALD for FBR (fluidized-bed reactor) for a leading phosphor material manufacturer to protect the sensitive phosphor powders used in LED lighting from moisture.
  • Beneq ALD coatings offer protection against corrosion in LED packaging.

    Anti-corrosion coating for LED packaging

    Beneq's ALD coating solution solved a leading LED manufacturer's silver reflector corrosion problem by both applying ALD to coat the semi-finished wire-bonded LED assemblies, and by protecting the silver surface with nSilver.
  • Beneq aerosol thin film equipment is ideal for AR coatings on solar glass.

    Anti-reflection coating for solar glass

    Beneq and DSM created a production scale solution using DSM AR coating material and Beneq nFOG aerosol technology for a leading solar glass manufacturer to reduce light reflection on solar panels.
  • Beneq ALD provides metal-like coatings for watch parts and fine mechanics.

    Metal-like coatings for watch parts

    Beneq developed a thin ALD-based optical coating for a leading watch parts manufacturer to both provide a specific color and to protect from corrosion.
  • Beneq ALD coatings for wafer-level moisture protection

    Wafer-level moisture barrier for LED

    Beneq provided moisture coating using TFS 200 for a leading LED manufacturer to protect LED dies from moisture and prevent oxidation.
  • Beneq ALD coatings provide high-quality reflectors for LED

    Bottom DBR for LED

    Beneq developed a multi-layer DBR structure on a patterned surface for a leading LED manufacturer.
  • Beneq ALD coatings boost the performance of diffractive gratings

    Filling of diffractive gratings

    Beneq used ALD coating to fill diffractive gratings for a leading optical system manufacturer to keep the gratings free from debris and boost their optical performance.
  • Beneq provides ALD coatings to protect electronics components from corrosion

    Anti-corrosion coating for sensors

    The highly conformal and pin-hole free ALD coating solved a leading sensor manufacturer's sensor corrosion problems without compromising sensor sensitivity.
  • ALD coatings provide interface layers between materials in CIGS panels.

    Buffer layer for CIGS solar panel

    Beneq developed a thin, cadmium-free ALD buffer for the solar panels of a leading CGIS solar panel manufacturer.
  • Beneq ALD coatings increase the lifetime of Li-Ion batteries

    Diffusion barrier for Li-ion batteries

    Beneq's ultra-thin ALD coating solved a leading Li-ion battery manufacturer's battery corrosion challenges by reducing the fading of battery capacity caused by repeated charge and unload cycles.

  • Anti-tarnishing coating for jewelry

    Beneq helped Kalevala Jewelry in preventing the discoloration of silver surfaces by providing the patented nSilver industrial-scale protection solution for an ultra-thin, totally conformal, and fully transparent anti-tarnish coating.
  • ALD is ideal for optical filters on complex surfaces.

    Optical NIR filter on a glass cylinder

    Beneq developed a customized batch ALD process for a CCD sensor -based industrial vision systems supplier to coat their near-infrared (NIR) filters.
  • Beneq ALD optical coatings increase the lifetime of high power lasers

    Optical coatings for lenses in high power lasers

    Benq developed a conformal high- and low-index multilayer optical coating for a leading provider of high power laser optics and coatings using the TFS 500 batch ALD system.
  • ALD-based conformal moisture barrier coatings for microchannel plates from Beneq.

    Coating of Microchannel Plates (MCP)

    Beneq developed an ALD coating solution for microchannel plates (MCP) for Incom, Inc., the world’s largest supplier of rigid fused fiber optics, to allow for significantly greater secondary electron emission .
  • OLED lighting encapsulation with Beneq TFS 600. Fully automated and vacuum-line integrated. For industrial OLED encapsulation.

    Thin-film encapsulation of OLED lighting

    Beneq developed a conformal, dense, and pinhole-free Al2O3 and TiO2 barrier coating for a leading OLED lighting panel manufacturer to protect OLED panels from humidity.
  • X-ray imaging scintillator plate encapsulation with Beneq Coating Services and Beneq P800 batch coating products

    Thin-film encapsulation of scintillator plates for X-ray imaging

    Beneq developed a conformal, dense, and pinhole-free low temperature Al2O3 and TiO2 barrier coating for a leading scintillator plate manufacturer to protect scintillator materials from moisture and increase product lifetime and reliability.

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