Company Filing History:
2 out of 427 
1 out of 8 Years Active: 1998-2002
Title: Whan-jin Roh: Innovator in Lithium Ion Polymer Battery Technology
Introduction
Whan-jin Roh is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of battery technology, particularly in lithium ion polymer batteries. With a total of 3 patents to his name, his work focuses on improving battery efficiency and safety.
Latest Patents
One of his latest patents is for an electrode active material and polymer electrolyte matrix composition for lithium ion polymer batteries. This invention provides an electrode active material composition that includes a pyrolytic plasticizer and a polymer electrolytic matrix composition. The preparation method eliminates the need for a separate plasticizer extraction step using an organic solvent, thereby reducing preparation costs and maintaining a clean process. This innovation allows for the fabrication of a uniform porosity plate after the removal of the plasticizer, resulting in a lithium ion polymer battery with enhanced high-rate charge and discharge characteristics.
Another notable patent involves a secondary battery with sealing materials coated onto electrode tabs. This design features an improved sealing structure between electrode tabs, which act as terminals of the battery, and a dielectric package that prevents leakage of an organic electrolyte. The secondary battery consists of a battery body with a positive electrode, a negative electrode, and a separator, along with electrode tabs that conduct current to the outside. The dielectric package encloses the battery body while allowing partial exposure of the electrode tabs, and the sealing materials prevent leakage of the organic liquid electrolyte.
Career Highlights
Whan-jin Roh has worked with notable companies such as Samsung Display Devices Co., Ltd. and Samsung Display Devices, Ltd. His experience in these organizations has contributed to his expertise in battery technology and innovation.
Collaborations
Throughout his career, he has collaborated with talented individuals, including Sergey V Sazhin and Mikhail Yu Khimchenko. These collaborations have likely enriched his work and led to advancements in the field.
Conclusion
Whan-jin Roh is a key figure in the development of lithium ion polymer battery technology. His innovative patents and career achievements highlight his commitment to enhancing battery performance and safety. His contributions continue to influence the industry and pave the way for future advancements.