William D Helgeson

Title: Innovations of William D. Helgeson

Introduction

William D. Helgeson is a notable inventor based in Minneapolis, MN (US). He has made significant contributions to the field of electrochemical cells, holding a total of 3 patents. His work focuses on improving the performance and reliability of lithium-iodine electrochemical cells.

Latest Patents

Helgeson's latest patents include a method for making an electrochemical cell that features a lithium anode and an iodine-containing cathode. This method involves a preliminary conditioning process that reduces the impedance of the cell, followed by a specific discharge before use or storage. The result is a primary cell with reduced variation in voltage and resistance, as well as improved self-discharge characteristics. Another significant patent addresses the control of polyvinylpyridine film thickness in lithium-iodine electrochemical cells, which directly influences cell voltage characteristics during discharge. This innovation allows for tailored voltage characteristics near the end of the cell's life.

Career Highlights

William D. Helgeson is currently associated with Medtronic, Inc., a leading company in medical technology. His work at Medtronic has been instrumental in advancing the technology behind electrochemical cells, contributing to the development of more efficient and reliable energy sources.

Collaborations

Throughout his career, Helgeson has collaborated with notable colleagues, including Lloyd J. Underhill and David L. Blattenberger. These collaborations have fostered innovation and have led to advancements in the field of electrochemical technology.

Conclusion

William D. Helgeson's contributions to the field of electrochemical cells demonstrate his commitment to innovation and improvement in energy technology. His patents reflect a deep understanding of the complexities involved in cell design and performance.