Daejeon, South Korea

Sang-Joon Lee

This inventor holds 6 USPTO granted patents and 8 published patent applications and 7 EPO patents. Top assignees: Lg Energy Solution, Ltd., Lg Chem, Ltd. Active years: 2019-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sang-Joon Lee. Retrieved from https://idiyas.com/inventor/sang-joon-lee-nz67ia0a

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 6 

% Patents Active = 83.3

 

Average Co-Inventor Count = 3.1

ph-index = 1


Company Filing History:


Years Active: 2019-2026

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6 patents (USPTO):Explore Patents

Title: **Innovative Contributions of Sang-Joon Lee in Lithium Battery Technology**

Introduction

Sang-Joon Lee, an accomplished inventor based in Daejeon, South Korea, has made significant strides in the field of lithium battery technology. With a portfolio that boasts five patents, he has consistently pushed the boundaries of innovation, particularly in the development of separators for lithium secondary batteries and electrochemical devices.

Latest Patents

Among his latest innovations is a patented separator designed specifically for lithium secondary batteries. This separator features a porous coating layer composed of small and large-particle diameter inorganic particles, along with adhesive polymer particles. This unique chemistry results in a separator that offers reinforced heat resistance, reduced resistance, and improved peel strength to a porous polymer substrate.

Another notable patent from Sang-Joon Lee is for a thin polyethylene separator utilized in electrochemical devices. This patented separator is crafted from a porous polymer film that exhibits excellent compressibility and permanent strain characteristics. It achieves high physical strength and durability while maintaining a low breakdown voltage, thus minimizing the risk of short-circuit generation. The separator's surface may also include a heat-resistant layer integrated with inorganic particles, further enhancing its performance.

Career Highlights

Sang-Joon Lee has held significant positions in leading companies such as LG Energy Solution and LG Chem, where he has applied his expertise to advance battery technology. His contributions have been instrumental in improving the performance and safety of lithium batteries, catering to the growing demand for efficient energy storage solutions.

Collaborations

Throughout his career, Sang-Joon Lee has collaborated with key professionals in the field, including his coworkers Su-Jin Park and Chan-Jong Kim. These partnerships have played a vital role in fostering innovation and expanding the impact of their collective work on the industry.

Conclusion

With a robust background in battery technology and a proven track record of patent achievements, Sang-Joon Lee continues to be a pivotal figure within the innovation landscape. His work not only enhances the performance and safety of lithium battery systems but also contributes to the broader goal of advancing clean energy technologies for a sustainable future.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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