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Lithium Phosphorus Oxynitride ("Lipon") Electrolyte

Deposition and composition:

RF magnetron sputtering of Li₃PO₄
Typical composition: Li_2.9PO_3.3N_0.36

Electrochemical and electrical properties:

Stability vs. Li:	0 to 5.5 V
Ionic Conductivity at 25°C	2 (± 1) x 10^-6 S/cm
Transport number for Li⁺ ions	1
Intrinsic diffusion coefficient at 25°C	10^-11 cm²/s
Electronic conductivity at 25°C	< 10^-14 S/cm

Optical Properties:

Index of Refraction	1.7 at 3 eV (~410 nm)
Optical band gap	3.75 eV

Reference:

X. Yu, J. B. Bates, G. E. Jellison Jr., and F. X. Hart, "A Stable Thin-Film Electrolyte: Lithium Phosphorus Oxynitride", J. Electrochem. Soc. 144, 524 (1997).

Properties or Battery Home

Date revised - 3/23/2000 (njd)

http://www.ssd.ornl.gov/BatteryWeb/Lipon.html