This inventor holds 7 USPTO granted patents and 5 EPO patents. Top assignees: Qualcomm Incorporated, Powergenix Systems, Inc.. Active years: 2011-2015.
Location History:
- San Diego, CA (US) (2011 - 2013)
- Olmsted Township, OH (US) (2013)
- Olmstead Township, OH (US) (2015)
Company Filing History:
Years Active: 2011-2015
Title: Innovations by James J Wu in Rechargeable Battery Technology
Introduction
James J Wu is a notable inventor based in San Diego, California, recognized for his contributions to rechargeable battery technology. With a total of seven patents to his name, Wu has made significant advancements in the field, particularly focusing on nickel-zinc batteries.
Latest Patents
One of Wu's latest patents is for a pasted zinc electrode for rechargeable nickel-zinc batteries. This invention involves an active material for a negative electrode made with zinc metal particles coated with tin and/or lead. The process includes adding lead and tin salts to a slurry containing zinc particles, a thickening agent, and water. The resulting slurry has a stable viscosity, making it easier to manufacture the zinc electrode. Notably, this zinc electrode is less prone to gassing when cobalt is present in the electrolyte, leading to a reduction in hydrogen gassing by 60-80% compared to conventional cells. Additionally, the cycle life and shelf life of the cells are enhanced due to the intact zinc conductive matrix.
Another significant patent by Wu is the method of selectively heat sealing separators for nickel-zinc cells. This invention describes methods for sealing separators and jellyroll electrode assemblies in nickel-zinc rechargeable cells. The selective heat sealing can be applied to both ends of a jellyroll electrode assembly, allowing for the encapsulation of one of the two electrodes on each end.
Career Highlights
Throughout his career, Wu has worked with prominent companies such as Qualcomm Incorporated and Powergenix Systems, Inc. His experience in these organizations has contributed to his expertise in battery technology and innovation.
Collaborations
Wu has collaborated with notable individuals in the field, including Ming-Chang Tsai and Jeffrey Owen Phillips. Their combined efforts have further advanced the development of rechargeable battery technologies.
Conclusion
James J Wu's innovative work in rechargeable battery technology has led to significant advancements that improve the efficiency and longevity of nickel-zinc batteries. His contributions continue to influence the field and pave the way for future innovations.