Ji Won Na

Title: Ji Won Na: Innovator in Lithium Battery Technology

Introduction

Ji Won Na is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of lithium secondary batteries, holding a total of 5 patents. His work focuses on enhancing battery performance and efficiency, which is crucial for the advancement of energy storage technologies.

Latest Patents

Ji Won Na's latest patents include innovative designs for lithium secondary batteries. One of his patents describes a cathode for a lithium secondary battery that features a cathode current collector and a cathode active material layer. This layer consists of a cathode active material and a conductive material, with an ID/IG ratio ranging from 0.5 to 1.25 in a Raman spectrum. The cathode active material is composed of lithium metal oxide particles that contain nickel and manganese, with cobalt content kept below 2 mol % among all elements except for lithium and oxygen. Another patent involves an apparatus for degassing a battery cell, which includes a gas suction portion that provides negative pressure, along with a first and second tubular member designed for efficient gas removal.

Career Highlights

Throughout his career, Ji Won Na has worked with notable companies such as SK On Co., Ltd. and SK Innovation Co., Ltd. His experience in these organizations has allowed him to develop and refine his expertise in battery technology, contributing to advancements in the industry.

Collaborations

Ji Won Na has collaborated with talented individuals in his field, including Yong Seok Lee and Jae Ram Kim. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Ji Won Na is a key figure in the field of lithium battery technology, with a focus on improving battery efficiency and performance. His patents reflect his commitment to innovation and his contributions to the energy storage sector will have lasting impacts.