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For the Inventor, By the Inventor

Daejeon, South Korea

Il Hong Kim

This inventor holds 16 USPTO granted patents and 3 published patent applications and 10 EPO patents, primarily in Lithium-Ion Battery Technology. Top assignees: Lg Chem, Ltd, Lg Energy Solution, Ltd., Research Affairs of Snu & Snu R&db Foundation. Active years: 1992-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Il Hong Kim. Retrieved from https://idiyas.com/inventor/il-hong-kim

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

Calculating rank
USPTO Granted Patents = 16 

% Patents Active = 93.8

 

Average Co-Inventor Count = 4.2

ph-index = 3

Forward Citations = 16(Granted Patents)


Location History:

  • Kyungsangnam-do, KR (1992)
  • Daejeon, KR (2018 - 2022)

Company Filing History:

goldMedal10 out of 8,655 
 
Lg Chem, Ltd
 patents
silverMedal5 out of 3,478 
 
Lg Energy Solution, Ltd.
 patents
bronzeMedal2 out of 2 
 
Research Affairs of Snu & Snu R&db Foundation
 patents
4. 1 out of 834,659 
Other
 patents
where one patent can have more than one assignee

Years Active: 1992-2026

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Areas of Expertise:
Positive Electrode
Active Material
Lithium Secondary Battery
Electrode Assembly
Energy Density
Anode Design
Manufacturing Method
Battery Cell
Electrolyte Supply
Cylindrical Battery
Coating Layer
Gas Permeable Membrane
16 patents (USPTO):Explore Patents
1. 12785093 - Cathode comprising mixture layer having dual layer structure with different lno amounts, and secondary battery comprising same (2026-11-03),
2. 12304834 - Positive electrode active material for lithium secondary battery and method for producing the same (2025-05-20),
3. 12199288 - Anode including multiple current collectors juxtaposed in parallel, and secondary battery comprising same (2025-01-14),
4. 12191473 - Rolling method for electrode (2025-01-07),
5. 11476468 - Electrode, electrode assembly and method for manufacturing the same (2022-10-18),
6. 10741841 - Electrode active material having improved energy density and lithium secondary battery including the same (2020-08-11),
7. 10468726 - Negative electrode for preventing deposition of manganese and battery cell including the same (2019-11-05),
8. 10418670 - Method of manufacturing lithium secondary battery and lithium secondary battery manufactured by the same (2019-09-17),
9. 10418620 - Cylindrical battery including pressurizing part and method of manufacturing the same (2019-09-17),
10. 10217997 - Positive electrode active material and lithium secondary battery including the same (2019-02-26),
11. 10205137 - Secondary battery to which electrolyte can be additionally supplied (2019-02-12),
12. 10128502 - Positive electrode active material and lithium secondary battery including the same (2018-11-13),
13. 10103372 - Lithium secondary battery including gas permeable membrane (2018-10-16),
14. 9985287 - Electrode including different electrode material layers and lithium secondary battery (2018-05-29),
15. 9899682 - Electrode including coating layer for preventing reaction with electrolyte solution (2018-02-20),

Title: The Innovations of Il Hong Kim

Introduction

Il Hong Kim is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of battery technology, particularly in the development of lithium secondary batteries. With a total of 15 patents to his name, Kim's work has had a substantial impact on energy storage solutions.

Latest Patents

Among his latest patents is a positive electrode active material for lithium secondary batteries and a method for producing the same. This invention includes a lithium transition metal oxide with a spinel crystal structure and a coating layer that has an orthorhombic structure. The coating layer comprises an oxide represented by a specific formula. Another notable patent involves an anode that includes multiple current collectors juxtaposed in parallel, which enables the creation of high-capacity secondary batteries while minimizing volume changes due to silicone components in the active material.

Career Highlights

Il Hong Kim has worked with leading companies in the industry, including LG Chem, Ltd. and LG Energy Solution, Ltd. His experience in these organizations has allowed him to refine his expertise in battery technology and innovation.

Collaborations

Throughout his career, Kim has collaborated with notable colleagues such as Hoe Jin Hah and Kyoung Ho Kim. These partnerships have contributed to the advancement of his research and the successful development of his inventions.

Conclusion

Il Hong Kim's contributions to battery technology through his innovative patents and collaborations highlight his role as a key figure in the field. His work continues to influence the development of efficient energy storage solutions.

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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