Wook Jang

This inventor holds 20 USPTO granted patents and 18 published patent applications and 13 EPO patents, primarily in Secondary Battery Technology. Top assignees: Lg Chem, Ltd, Lg Energy Solution, Ltd., Ulsan National Institute of Science and Technology. Active years: 2012-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Wook Jang. Retrieved from https://idiyas.com/inventor/wook-jang

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

USPTO Granted Patents = 20 (Patent Applications = 18)

% Patents Active = 75.0

EPO Patents = 13 (Patent Applications = 17)

Average Co-Inventor Count = 3.3

ph-index = 2

Forward Citations = 17(Granted Patents)

Company Filing History:

Lg Energy Solution, Ltd.

patents

1 out of 343

Ulsan National Institute of Science and Technology

patents

where one patent can have more than one assignee

Years Active: 2012-2025

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Areas of Expertise:

Secondary Battery

Heat Conduction

Cathode Active Material

Lithium Iron Phosphate

Surface Coating

Nanopowder

Electrode Tab

Polymerized Toner

Manufacturing Method

Active Material Particles

Sealing Tape

Copper-Nickel Alloy

20 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12438220 - Secondary battery comprising seal tape (2025-10-07),

2. 11916207 - Battery cell including sealing tape for accelerating heat conduction (2024-02-27),

3. 10879529 - Surface-coated positive electrode active material particles and secondary battery comprising the same (2020-12-29),

4. 10756338 - Cathode active material for secondary battery and method of manufacturing the same (2020-08-25),

5. 10476082 - Surface coated positive electrode active material, preparation method thereof and lithium secondary battery including the same (2019-11-12),

6. 10347897 - Secondary battery with electrode tab made of copper-nickel alloy (2019-07-09),

7. 10153488 - Method for preparing lithium iron phosphate nanopowder coated with carbon (2018-12-11),

8. 10026960 - Cathode active material coating solution for secondary battery and method of manufacturing the same (2018-07-17),

9. 10020499 - Method for preparing lithium iron phosphate nanopowder coated with carbon (2018-07-10),

10. 9941508 - Cathode active material for secondary battery, method of manufacturing the same, and cathode for lithium secondary battery including the cathode active material (2018-04-10),

11. 9774040 - Surface coated positive electrode active material, preparation method thereof and lithium secondary battery including the same (2017-09-26),

12. 9742006 - Method for preparing lithium iron phosphate nanopowder coated with carbon (2017-08-22),

13. 9620776 - Method for preparing lithium iron phosphate nanopowder coated with carbon (2017-04-11),

14. 8808958 - Process for preparing polymerized toner (2014-08-19),

15. 8530128 - Polymerized toner and method for manufacturing same (2013-09-10),

Title: **Innovator Spotlight: Wook Jang from Daejeon, KR**

Introduction

Wook Jang, an accomplished inventor based in Daejeon, South Korea, is a noted figure in the field of battery technology. With a portfolio of 18 patents, he has made significant contributions to the development of advanced materials for secondary batteries, enhancing their performance and efficiency.

Latest Patents

Among his latest patents, Wook Jang has developed surface-coated positive electrode active material particles and a secondary battery that incorporates these particles. This innovation focuses on positive electrode active material particles that are coated with a polyimide, which includes structures such as pyrrole, aniline, and carbazole. This coating not only prevents direct contact between the active material and the electrolyte but also inhibits side reactions, resulting in improved lithium ion mobility and electron conductivity.

Additionally, Wook Jang holds a patent for a method of manufacturing a cathode active material. This method includes several steps: preparing a metal glycolate solution, mixing lithium-containing transition metal oxide particles with this solution, drying the resulting paste, and then applying heat treatment to the mixture. The resulting cathode active material, characterized by a metal oxide layer produced through this method, enhances the overall performance of secondary batteries.

Career Highlights

Wook Jang's career has involved significant roles at prominent companies including LG Chem, Ltd. and the Ulsan National Institute of Science and Technology. His work at these institutions has been pivotal in advancing battery technologies and research, contributing to the sustainability and efficiency of energy storage solutions.

Collaborations

He has collaborated with brilliant minds such as Seung Beom Cho and In Kook Jun. Together, they have worked on innovative projects that push the boundaries of current battery technology, showcasing Wook Jang's ability to thrive in collaborative environments and produce impactful advancements.

Conclusion

Wook Jang stands out as a prominent inventor in the battery technology sector, with a robust portfolio of patents that address crucial challenges in energy storage. His innovative approach and collaborations continue to drive the evolution of secondary batteries, making significant strides toward enhanced performance and durability. The impact of his inventions is likely to resonate in both industrial applications and consumer electronics for years to come.

Profile summary based on public USPTO records.