Byeong Kyu Lee

This inventor holds 22 USPTO granted patents and 17 published patent applications and 18 EPO patents, primarily in Secondary Battery Manufacturing. Top assignees: Lg Energy Solution, Ltd., Lg Chem, Ltd. Active years: 2021-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Byeong Kyu Lee. Retrieved from https://idiyas.com/inventor/byeong-kyu-lee

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

Calculating rank

USPTO Granted Patents = 22 (Patent Applications = 17)

% Patents Active = 95.5

EPO Patents = 18 (Patent Applications = 26)

Average Co-Inventor Count = 4.1

ph-index = 1

Forward Citations = 2(Granted Patents)

Company Filing History:

21 out of 3,439

Lg Energy Solution, Ltd.

Years Active: 2021-2026

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Areas of Expertise:

Electrode Assembly

Pouch-Shaped Battery

Lamination Device

Unit Cell Preparation

Manufacturing Method

Adhesive Separator

Electrolyte Injection

Pressing Roll Device

Crack Prevention

Structural Bodies

Battery Case

Secondary Battery

22 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12776521 - Electrode assembly and apparatus and method for manufacturing the same (2026-10-27),

2. 12725824 - Unit cell preparation apparatus and method (2026-09-01),

3. 12719134 - Separator including uneven portion, electrode assembly including the same, and method of manufacturing electrode assembly (2026-08-25),

4. 12651762 - Pressing roll device and pressing method (2026-06-09),

5. 12603391 - All-in-one electrode stack unit, manufacturing method thereof, and lithium secondary battery including the same (2026-04-14),

6. 12576626 - Laminator for manufacture of unit structural bodies with increased force of adhesion (2026-03-17),

7. 12512534 - Crack-prevention sealing block for pouch-shaped secondary batteries, pouch-shaped battery case manufactured using the same, and method of sealing pouch-shaped battery case (2025-12-30),

8. 12506178 - Electrode assembly comprising adhesive on separator sheet and apparatus and method for manufacturing the same (2025-12-23),

9. 12463303 - Lamination device and method and secondary battery manufacturing equipment comprising lamination device (2025-11-04),

10. 12424714 - Electrolyte injection device and electrolyte injection method using the same (2025-09-23),

11. 12368186 - Electrode assembly and apparatus and method for manufacturing the same (2025-07-22),

12. 12368181 - Electrode assembly, and apparatus and method for manufacturing the same (2025-07-22),

13. 12355056 - Apparatus for manufacturing electrode assembly, electrode assembly manufactured therethrough, and secondary battery (2025-07-08),

14. 12337567 - Pressing apparatus including fluid and electrode and electrode assembly manufacturing method using the same (2025-06-24),

15. 12272812 - Electrode assembly manufacturing method including step of simultaneously applying heat and pressure (2025-04-08),

Title: Innovations of Byeong Kyu Lee

Introduction

Byeong Kyu Lee is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of battery technology, holding a total of 22 patents. His work focuses on enhancing the efficiency and reliability of battery manufacturing processes.

Latest Patents

Among his latest innovations are two notable patents. The first is a lamination device and method for bonding an electrode and a separator of an electrode assembly. This device features a transfer part for moving the electrode assembly, a heating roller part for applying heat, and a rolling roller to ensure proper bonding. The design includes multiple heating rollers that sequentially press and heat the electrode assembly, allowing for a gradual increase in temperature.

The second patent is an electrolyte injection device and method. This invention includes a base portion for placing a preliminary battery cell, a movable pressing jig, and an electrolyte injection pipe. The pressing jig is designed to apply pressure to the battery cell, preventing issues such as folding or peeling of the separator during high electrolyte injection rates.

Career Highlights

Byeong Kyu Lee has worked with notable companies in the industry, including LG Energy Solution and LG Chem. His experience in these organizations has allowed him to develop and refine his innovative ideas in battery technology.

Collaborations

He has collaborated with talented individuals such as Su Taek Jung and Won Nyeon Kim, contributing to the advancement of battery manufacturing techniques.

Conclusion

Byeong Kyu Lee's contributions to battery technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence the development of more efficient battery manufacturing processes.

Profile summary based on public USPTO records.