US 7,524,577 B2
Long life thin film battery and method therefor
John B Bates, Oak Ridge, Tenn. (US)
Assigned to Oak Ridge Micro-Energy, Inc., Oak Ridge, Tenn. (US)
Filed on Sep. 06, 2005, as Appl. No. 11/162,311.
Prior Publication US 2008/0003492 A1, Jan. 03, 2008
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 2/02 (2006.01); H01M 2/08 (2006.01)
U.S. Cl. 429—66  [429/162; 429/185] 19 Claims
OG exemplary drawing
 
1. A method for improving the useful life of a thin film lithium-ion battery containing a solid electrolyte and an anode that expands on charging, comprising providing a hermetic barrier package for the thin film battery that includes an anode expansion absorbing structure, wherein the hermetic barrier package comprises an epoxy adhesive bead surrounding the anode and an oxygen and water vapor resistant cover attached to the adhesive bead providing an anode expansion gap between the cover and the anode.