HyeJeong Yang

Title: HyeJeong Yang: Innovator in Lithium-Ion Battery Technology

Introduction

HyeJeong Yang is a prominent inventor based in Cheonan-si, South Korea. He has made significant contributions to the field of rechargeable lithium-ion batteries, holding a total of 4 patents. His work focuses on improving the efficiency and effectiveness of battery materials, which is crucial for the advancement of energy storage technologies.

Latest Patents

HyeJeong Yang's latest patents include innovative methods for preparing positive electrode materials for rechargeable lithium-ion batteries. One notable invention describes a process for manufacturing lithium nickel cobalt oxide-based cathode compounds. This process involves lithiating and sintering nickel, cobalt, and optionally manganese-bearing precursor compounds at high temperatures. The cooling rate during this process is critical, as it should not exceed 10° C./min within a specific temperature range of 700° C. to 550° C.

Another patent outlines a method for preparing a powderous positive electrode material comprising single crystal monolithic particles. This method includes a multiple-step sintering process and a wet ball milling step to achieve a slurry of deagglomerated primary particles. The resulting material has a primary particle size distribution with a D50 between 2.0 and 8.0 μm, which is essential for optimal battery performance.

Career Highlights

HyeJeong Yang has worked with notable companies in the industry, including Umicore and Umicore Korea, Ltd. His experience in these organizations has allowed him to develop and refine his innovative approaches to battery technology.

Collaborations

Throughout his career, HyeJeong Yang has collaborated with esteemed colleagues such as Jens M Paulsen and TaeHyeon Yang. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.

Conclusion

HyeJeong Yang's contributions to lithium-ion battery technology demonstrate his commitment to innovation and excellence in the field. His patents reflect a deep understanding of materials science and engineering, positioning him as a key figure in the ongoing evolution of energy storage solutions.