Location History:
- Gyeonggi-do, KR (2013 - 2021)
- Bucheon-si, KR (2018 - 2022)
Company Filing History:
12 out of 18,523 
8 out of 8,087 
Years Active: 2013-2024
Title: Inventor Yoon Ji Lee: Innovations in Lithium Ion Battery Technology
Introduction
Yoon Ji Lee is an accomplished inventor based in Bucheon-si, South Korea, known for his groundbreaking work in battery technology. With a total of 12 patents to his name, his innovations focus primarily on lithium-ion secondary batteries, contributing significantly to advancements in the energy storage sector.
Latest Patents
One of Yoon Ji Lee's recent patents is a "System for and method of manufacturing lithium ion secondary battery." This innovative system encompasses a chamber designed to hold a lithium ion secondary battery, along with an ingenious charging and discharging device. The design features a pressure plate that presses the battery during charging and a pointed component to create a hole in the battery pouch, allowing gases generated during charging to escape. A specialized sealer ensures that the pouch is securely sealed post-degassing.
Another noteworthy invention is the "Method for checking defects in lithium ion secondary battery and lithium ion secondary battery manufactured thereby." This method involves a two-phase charging process complemented by measuring the open circuit voltages (OCVs) and internal resistances (IRs) of the battery cells. It incorporates pressurization and aging techniques to identify defects by re-evaluating the previously measured parameters.
Career Highlights
Throughout his career, Yoon Ji Lee has contributed his expertise while working at prominent automobile manufacturers such as Hyundai Motor Company and Kia Motors Corporation. His innovative spirit and technical knowledge have played a pivotal role in advancing battery technology in the automotive industry.
Collaborations
Yoon Ji Lee has collaborated with talented professionals including Hee Yeon Ryu and Hee Jin Woo. Together, they have worked on various projects that aimed to enhance battery performance and ensure reliability in their applications.
Conclusion
Yoon Ji Lee's contributions to the field of lithium-ion battery technology underscore his status as a leading inventor. With a proven track record of patents and collaborations, he continues to pave the way for innovations that enhance the efficiency and safety of energy storage solutions. His work not only benefits the automotive industry but also sets the stage for future advancements in battery technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.