The architecture of the ODG, (see Fig. 1), resembles that of a discharged thin film Li battery, which upon applying a negative current to the cathode produces metallic Li or Li alloys that react irreversibly with atmospheric molecular gases. The products of these reactions are solids that display no vapor pressure at ambient temperature. Additional ODG components include a microelectronics board and a battery which powers the device. As envisioned, the ODG incorporates a porous Ni cathode; a non-volatile, thin, Li+-conducting ceramic film, such as LiPON; and a Li-ion counter electrode. Preliminary measurements aimed at demonstrating the overall concept were performed using a Li-ion conducting polymer electrolyte and a Li film as the counter electrode. The assembled ODG was placed in vacuum and the voltage scanned to -0.7 V vs Li+|Li to deposit metallic Li (see insert, Fig. 2). The cell was then disconnected and its open circuit potential (OCP) recorded. As shown in Fig. 2 (black line), the OCP remained at 0.0 V for ca. 10 min., consistent with the presence of metallic Li on the cathode, and later increased to a higher value, as Li reacted with gases in the chamber. In similar experiments, the chamber was opened to air after Li deposition and the OCP was found to jump to a high value indicative of reactions of Li with atmospheric components (blue line, Fig. 2). The efficacy of the ODG is currently being characterized by measuring the thermal conductivity as a function of pressure and imposed degradation conditions. The ODG will be installed in VIPs along with other traditional getter systems, which will then be subjected to various laboratory and field exposures while monitoring their thermal performance either continuously or periodically over an extended service life and its efficacy compared with the present state of the art.