Da Hye Kim

Title: Innovations of Da Hye Kim in All-Solid-State Battery Technologies

Introduction

Da Hye Kim, an inventor based in Gwangju, South Korea, is contributing significantly to the field of battery technology with his innovative approaches to solid electrolytes. With a total of two patents, he has established himself as a key figure in the development of advanced materials for all-solid-state batteries.

Latest Patents

Kim's latest patents focus on the preparation of high-performance sintered solid electrolytes. His first patent describes a method for preparing a sintered solid electrolyte that boasts high ionic conductivity, crucial for the efficiency of all-solid-state batteries. This method involves coprecipitating a mixed solution with a lanthanum precursor, zirconium precursor, gallium precursor, complexing agent, and pH adjuster to create a solid electrolyte precursor. The process includes washing, drying, and calcining the mixture with a lithium source to produce a gallium-doped lithium lanthanum zirconium oxide (LLZO), as represented by the chemical formula LiLaZrGaO.

The second patent presents a similar approach but specifically highlights the preparation of a gallium-doped LLZO solid electrolyte for lithium secondary batteries. This innovative method includes creating a solid electrolyte precursor slurry and controlling the calcination and sintering processes to achieve a high-precision cubic structure with enhanced ionic conductivity. The solid electrolyte is represented by the formula LiGaLaZrO, reflecting the intricate balance of starting materials and processing conditions.

Career Highlights

Da Hye Kim is affiliated with the Korea Institute of Industrial Technology, where he applies his expertise in materials science and electrochemistry. His ability to innovate within the realm of battery technology has made valuable contributions to the advancement of energy storage systems, particularly in developing solid electrolytes that can potentially lead to safer and more efficient batteries.

Collaborations

Throughout his career, Kim has collaborated with notable colleagues such as Ho Sung Kim and Seung Hoon Yang. Their teamwork has fostered an environment of innovation and has been instrumental in refining the methodologies for synthesizing advanced solid electrolytes.

Conclusion

Da Hye Kim's pioneering work in improving the ionic conductivity and sintering properties of solid electrolytes represents a significant advancement in the field of all-solid-state battery technology. Through his patents and collaborations, he continues to push the boundaries of innovation, paving the way for the next generation of energy storage solutions. His contributions are vital not only to the academic and industrial landscapes but also to the sustainable energy future.