Rechargeable lithiated thin film intercalation electrode battery

Details Rechargeable lithiated thin film intercalation electrode battery Rechargeable lithiated thin film intercalation electrode battery

1991-07-22

1992-05-05

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

296235, 4273722, 423594, 423641, 423599, 429224, H01M 448, C01D 1500

Patent

active

051106965

ABSTRACT:
A Thin film electrode for a rechargeable (secondary) battery is prepared by electron beam deposition of LiMn.sub.2 O.sub.4, LiCoO.sub.2, or LiNiO.sub.2 on a smooth, amorphous substrate surface and in situ annealing of the deposited lithium composition at a temperature below about 500.degree. C. The amorphous nature of the substrate surface prevents epitaxial growth or ordered orientation of the minute composition crystallites thus formed. The finely granular structure of the resulting electrode thin film presents abundant surface area that enables a 4V battery to provide current densities in the range of 500 microamps/cm.sup.2. The low annealing temperature enables formation of the electrode structure and subsequent battery assembly directly upon semiconductor devices and integrated circuitry.

REFERENCES:
patent: 4340652 (1982-07-01), Raistrick et al.
patent: 4567031 (1986-07-01), Riley
patent: 4828834 (1989-05-01), Nagaura et al.

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