Pressure Tolerant Power Source for Off-Board Sensor

Period of Performance: 03/28/2005 - 09/27/2005


Phase 1 SBIR

Recipient Firm

Yardney Technical Products, Inc.
2000 South County Trail
East Greenwich, RI 02818
Principal Investigator


This Small Business Innovation Research Phase I project will advance an efficient and high energy density Lithium/(CF)x battery, using LithyleneT technology, for off-board sensors by developing a pressure tolerant cell design. Specifically the project advances lithium carbon monofluoride batteries by testing pouch cells with a riveted design (LithyleneT technology). The typical problem with batteries under high pressures is that the case crushes, damaging the electrodes. By using a pouch cell design with riveted electrodes, the cell will be able to tolerate high pressures and maintain the electrodes integrity. This design will enable the cell to withstand high pressures, and underwater battery systems will greatly improve. The proposed cells use modern lithium battery technology that offers safe and high energy density power. Yardney's experience and technologies in batteries for underwater vehicles, such as submarines and torpedoes, will be adopted in the design of the new Li/CFx batteries. Advantages of the proposed lithium ion cell designs include a high energy density, safe design, and the ability to perform under high pressures.