재빠른 나무늘보 - 일하는 것처럼 보인다면 착각입니다.

Battery engineer with PhD and over 5 years of professional experience in battery cell development, machine-learning based algorithm development, electrochemical modeling, and mechanical simulations.

🎓 EDUCATION & CAREER

Staff Engineer
Samsung Electronics Co. Ltd. | Mar. 2019 - Current
Advanced Battery Lab., Mobile eXperience (MX) Division
  • Machine-learning based diagnotics for lithium ion batteries
    • State-of-health estimation
    • Data-driven cycle life prediction
    • Failure analysis and diagnosis
  • Battery Cell NPI
    • Led battery cell/pack development with partner companies
    • Conducted cell specification review
    • Conducted process auditing, product delivery/testing.
Suwon, Republic of Korea

Doctor of Philosophy (Ph.D.)
Seoul National University | Mar. 2013 - Feb. 2019
Department of Materials Science and Engineering
    Seoul, Republic of Korea

    Bachelor of Science (B.S.)
    Seoul National University | Mar. 2009 - Feb. 2013
    Department of Materials Science and Engineering
      Department of Mathematical Sciences
      • Dual Major, Cum Laude
      Seoul, Republic of Korea

      📚 PUBLICATIONS

      36. On-Device Personalized Charging Strategy With an Aging Model for Lithium-Ion Batteries Using Deep Reinforcement Learning
       Ankit Yadu, Subramanian B. Swernath, Samarth Agarwal, D. B. Sreevatsa, Sangheon Lee, and Youngju Kim
      IEEE Transactions on Automation Science and Engineering , 1-11 (2023)
      DOI: 10.1109/TASE.2023.3307168

      35. Transfer Learning Based Generalized Framework for State of Health Estimation for Li-Ion Cells
       Subhasmita Sahoo,* Krishnan S. Hariharan, Samarth Agarwal, Subramanian B. Swernath, Roshan Bharti, Seongho Han, and Sangheon Lee
      Scientific Reports 12, 13173 (2022)
      DOI: 10.1038/s41598-022-16692-4

      34. Effects of Photochemical Oxidation of the Carbonaceous Additives on Li-S Cell Performance
       Jungjin Park, Joonhee Moon, Kookhan Kim, Vitalii Ri, Sangheon Lee, Byung Hee Hong, Yung-Eun Sung, Chunjoong Kim,* and Elton J. Cairns*
      ACS Applied Materials & Interfaces 13(35), 41517-41523 (2021)
      DOI: 10.1021/acsami.1c07452

      33. Diagnosing Various Failures of Lithium-Ion Batteries using Artificial Neural Network Enhanced by Likelihood Mapping
       Sangheon Lee,* Seongho Han, Kyoung Hwan Han, Youngju Kim, Samarth Agarwal, Krishnan S. Hariharan, Bookeun Oh, and Jongmoon Yoon*
      Journal of Energy Storage 40, 102768 (2021)
      DOI: 10.1016/j.est.2021.102768

      32. Nitrogen-Doped Graphene Quantum Dots: Sulfiphilic Additives for the High-Performance Li-S Cells
       Jungjin Park, Joonhee Moon, Vitalii Ri, Sangheon Lee, Chunjoong Kim,* and Elton J. Cairns*
      ACS Applied Energy Materials 4(4), 3518-3525 (2021)
      DOI: 10.1021/acsaem.0c03247

      31. Efficient Type-II Heterojunction Nanorod Sensitized Solar Cells Realized by Controlled Synthesis of Core/Patchy Shell Structure and CdS Cosensitization
       Sangheon Lee,+ Joseph C. Flanagan,+ Jaewook Kim, Alan Jiwan Yun, Byungho Lee, Moonsub Shim,* and Byungwoo Park*
      ACS Applied Materials & Interfaces 11(21), 19104-19114 (2019)
      DOI: 10.1021/acsami.9b02873

      30. Microstructural Evolution of Hybrid Perovskites Promoted by Chlorine and Its Impact on the Performance of Solar Cell
       Byungho Lee, Taehyun Hwang, Sangheon Lee, Byungha Shin,* and Byungwoo Park*
      Scientific Reports 9, 4803 (2019)
      DOI: 10.1038/s41598-019-41328-5

      29. An Aromatic Diamine Molecule as the A-Site Solute for Highly Durable and Efficient Perovskite Solar Cells
       Jinhyun Kim, Taehyun Hwang, Byungho Lee, Sangheon Lee, Kimin Park, Helen Hejin Park, and Byungwoo Park*
      Small Methods 3(1), 1800361 (2019)
      DOI: 10.1002/smtd.201800361

      28. From Nanostructural Evolution to Dynamic Interplay of Constituents: Perspectives for Perovskite Solar Cells
       Taehyun Hwang,+ Byungho Lee,+ Jinhyun Kim,+ Sangheon Lee,+ Bumjin Gil, Alan Jiwan Yun, and Byungwoo Park*
      Advanced Materials 30(42), 1704208 (2018)
      DOI: 10.1002/adma.20174208

      27. Selective Rear Contact for Ga0.5In0.5P- and GaAs-Based Solar Cells
       Sun-Tae Hwang, Taehyun Hwang, Sangheon Lee, Bumjin Gil, and Byungwoo Park*
      Solar Energy Materials and Solar Cells 182, 348-353 (2018)
      DOI: 10.1016/solmat.2018.03.037

      26. Optimum Morphology of Mixed-Olivine Mesocrystals for a Li-Ion Battery
       Kimin Park, Jaewon Kim, Sungun Wi, Sangheon Lee, Taehyun Hwang, Jaewook Kim, Joonhyeon Kang, Joon-Phil Choi, Seunghoon Nam,* and Byungwoo Park*
      Inorganic Chemistry 57(10), 5999-6009 (2018)
      DOI: 10.1021/acs.inorgchem.8b00501

      25. Complementary Surface Modification by Disordered Carbon and Reduced Graphene Oxide on SnO2 Hollow Spheres as an Anoe for Li-Ion Battery
       Hyungsub Woo, Sungun Wi, Jaewon Kim, Jinhyun Kim, Sangheon Lee, Taehyun Hwang, Joonhyeon Kang, Jaewook Kim, Kimin Park, Bumjin Gil, Seunghoon Nam,* and Byungwoo Park*
      Carbon 129, 342-348 (2018)
      DOI: 10.1016/j.carbon.2017.12.015

      24. Tailoring the Mesoscopic TiO2 Layer: Concomitant Parameters for Enabling High-Performance Perovskite Solar Cells
       Taehyun Hwang,+ Sangheon Lee,+ Jinhyun Kim, Jaewon Kim, Chunjoong Kim, Byungha Shin, and Byungwoo Park*
      Nanoscale Research Letters 12, 57 (2017)
      DOI: 10.1186/s11671-016-1809-7

      23. Synergetic Effect of Double-Step Blocking Layer for the Perovskite Solar Cell
       Jinhyun Kim, Taehyun Hwang, Sangheon Lee, Byungho Lee, Jaewon Kim, Jaewook Kim, Bumjin Gil, and Byungwoo Park*
      Journal of Applied Physics 122(14), 145106 (2017)
      DOI: 10.1063/1.4991633

      22. Breathable Carbon-Free Electrode: Black TiO2 with Hierarchically Ordered Porous Structure for Stable Li-O2 Battery
       Joonhyeon Kang, Jinyoung Kim, Sangheon Lee, Sungun Wi, Chunjoong Kim, Seungmin Hyun, Seunghoon Nam,* Yongjoon Park,* and Byungwoo Park*
      Advanced Energy Materials 7(19), 1700814 (2017)
      DOI: 10.1002/aenm.201700814

      21. Route to Improving Photovoltaics Based on CdSe/CdSexTe1-x Type-II Heterojunction Nanorods: The Effect of Morphology and Cosensitization on Carrier Recombination and Transport
       Sangheon Lee,+ Joseph C. Flanagan,+ Byungho Lee, Taehyun Hwang, Jaewook Kim, Bumjin Gil, Moonsub Shim,* and Byungwoo Park*
      ACS Applied Materials & Interfaces 9(37), 31931-31939 (2017)
      DOI: 10.1021/acsami.7b09745

      20. Insights on the Delithiation/Lithiation Reactions of LixMn0.8Fe0.2PO4 Mesocrystals in Li+ Batteries by in situ Techniques
       Sungun Wi,+ Jungjin Park,+ Sangheon Lee,+ Jaewon Kim, Bumjin Gil, Alan Jiwan Yun, Yung-Eun Sung,* Byungwoo Park,* and Chunjoong Kim*
      Nano Energy 39, 371-379 (2017)
      DOI: 10.1016/j.nanoen.2017.07.016

      19. Single-Layer Graphene-Wrapped Li4Ti5O12 Anode with Superior Lithium Storage Capability
       Jaewon Kim,+ Kyung Eun Lee,+ Kyung Hwan Kim, Sungun Wi, Sangheon Lee, Seunghoon Nam, Chunjoong Kim,* Sang Ouk Kim,* and Byungwoo Park*
      Carbon 114, 275-283 (2017)
      DOI: 10.1016/j.carbon.2016.12.022

      18. Synchrotron-Based X-Ray Absorption Spectroscopy for the Electronic Structure of LixMn0.8Fe0.2PO4 Mesocrystal in Li+ Batteries
       Sungun Wi,+ Jungjin Park,+ Sangheon Lee, Joonhyeon Kang, Taehyun Hwang, Kug-Seung Lee, Han-Koo Lee, Seunghoon Nam, Chunjoong Kim,* Yung-Eun Sung,* and Byungwoo Park*
      Nano Energy 31, 495-503 (2017)
      DOI: 10.1016/j.nanoen.2016.11.044

      17. Evaluating the Optoelectronic Quality of Hybrid Perovskites by Conductive Atomic Force Microscopy with Noise Spectroscopy
       Byungho Lee, Sangheon Lee, Duckhyung Cho, Jinhyun Kim, Taehyun Hwang, Kyung Hwan Kim, Seunghoon Hong,* Taeho Moon,* and Byungwoo Park*
      ACS Applied Materials & Interfaces 8(45), 30985-30991 (2016)
      DOI: 10.1021/acsami.6b11011

      16. Synthesis of LixMn0.8Fe0.2PO4 Mesocrystals for High-Performance Li-Ion Chatode Materials
       Sungun Wi, Jaewon Kim, Sangheon Lee, Joonhyeon Kang, Kimin Park, Kunsu Kim, Seunghoon Nam,* Chunjoong Kim,* and Byungwoo Park*
      Electrochimica Acta 216, 203-210 (2016)
      DOI: 10.1016/j.electacta.2016.09.005

      15. Bandgap Grading and Al0.3Ga0.7As Heterojunction Emitter for Highly Efficient GaAs-Based Solar Cells
       Sun-Tae Hwang, Soohyun Kim, Hyeunseok Cheun, Hyun Lee, Byungho Lee, Taehyun Hwang, Sangheon Lee, Wonki Yoon, Heon-Min Lee, and Byungwoo Park*
      Solar Energy Materials and Solar Cells 155, 264-272 (2016)
      DOI: 10.1016/j.solmat.2016.06.009

      14. Investigation of Chlorine-Mediated Microstructural Evolution of CH3NH3PbI3(Cl) Grains for High Optoelectronic Responses
       Taehyun Hwang, Duckhyung Cho, Jinhyun Kim, Jaewon Kim, Sangheon Lee, Byungho Lee, Kyung Hwan Kim, Seunghoon Hong, Chunjoong Kim, and Byungwoo Park*
      Nano Energy 25, 91-99 (2016)
      DOI: 10.1016/j.nanoen.2016.04.044

      13. Solvent and Intermediate Phase as Boosters for the Perovskite Transformation and Solar Cell Performance
       Jinhyun Kim, Taehyun Hwang, Sangheon Lee, Byungho Lee, Jaewon Kim, Gil Su Jang, Seunghoon Nam, and Byungwoo Park*
      Scientific Reports 6, 25648 (2016)
      DOI: 10.1038/srep25648

      12. Evaluation of Graphene-Wrapped LiFePO4 as Novel Cathode Materials for Li-Ion Batteries
       Sungun Wi,+ Jaewon Kim,+ Kimin Park,+ Sangheon Lee, Joonhyeon Kang, Kyung Hwan Kim, Seunghoon Nam,* Chunjoong Kim,* and Byungwoo Park*
      RSC Advances 6, 105081-105086 (2016)
      DOI: 10.1039/C6RA24514E

      11. Integration of CdSe/CdSexTe1-x Type-II Heterojunction Nanorods into Hierarchically Porous TiO2 Electrode for Efficient Solar Energy Conversion
       Sangheon Lee,+ Joseph C. Flanagan,+ Joonhyeon Kang, Jinhyun Kim, Moonsub Shim,* and Byungwoo Park*
      Scientific Reports 5, 17472 (2015)
      DOI: 10.1038/srep17472

      10. Reduced Graphene Oxide/Carbon Double-Coated 3-D Porous ZnO Aggregates as High-Performance Li-Ion Anode Materials
       Sungun Wi,+ Hyungsub Woo,+ Sangheon Lee, Joonhyeon Kang, Jaewon Kim, Subin An, Chohui Kim, Seunghoon Nam, Chunjoong Kim, and Byungwoo Park*
      Nanoscale Research Letters 10, 204 (2015)
      DOI: 10.1186/s11671-015-0902-7

      09. Nanoroughness Control of Al-Doped ZnO for High Efficiency Si Thin-Film Solar Cells
       Seung-Yoon Lee, Taehyun Hwang, Sangheon Lee, Woojin Lee, Byungho Lee, Jinhyun Kim, Soohyun Kim, Hyun Lee, Heon-Min Lee, and Byungwoo Park*
      Current Applied Physics 15(11), 1353-1357 (2015)
      DOI: 10.1016/j.cap.2015.07.024

      08. Organic-Acid Texturing of Transparent Electrodes toward Broadband Light Trapping in Thin-Film Solar Cells
       Woojin Lee, Taehyun Hwang, Sangheon Lee, Seung-Yoon Lee, Joonhyeon Kang, Byungho Lee, Jinhyun Kim, Taeho Moon,* and Byungwoo Park*
      Nano Energy 17, 180-186 (2015)
      DOI: 10.1016/j.nanoen.2015.08.015

      07. Wrapping SnO2 with Porosity-Tuned Graphene as a Strategy for High-Rate Performance in Lithium Battery Anodes
       Seunghoon Nam, Seung Jae Yang, Sangheon Lee, Jaewon Kim, Joonhyeon Kang, Jun Young Oh, Chong Rae Park, Taeho Moon,* Kyu Tae Lee,* and Byungwoo Park*
      Carbon 85, 289-298 (2015)
      DOI: 10.1016/j.carbon.2015.01.005

      06. The Construction of Tandem Dye-Sensitized Solar Cells from Chemically-Derived Nanoporous Photoelectrodes
       Hongsik Choi, Taehyun Hwang, Sangheon Lee, Seunghoon Nam, Joonhyeon Kang, Byungho Lee, and Byungwoo Park*
      Journal of Power Sources 274, 937-942 (2015)
      DOI: 10.1016/j.jpowsour.2014.10.125

      05. Oxygen-Controlled Seed Layer in DC Sputter-Deposited ZnO:Al Substrate for Si Thin-Film Solar Cells
       Seung-Yoon Lee, Taehyun Hwang, Woojin Lee, Sangheon Lee, Hongsik Choi, Seh-Won Ahn, Heon-Min Lee, and Byungwoo Park*
      IEEE Journal of Photovoltaics 5(2), 473-478 (2014)
      DOI: 10.1016/JPHOTOV.2014.2376052

      04. Improving Scattering Layer through Mixture of Nanoporous Spheres and Nanoparticles in ZnO-Based Dye-Sensitized Solar Cells
       Chohui Kim, Hongsik Choi, Jae Ik Kim, Sangheon Lee, Jinhyun Kim, Woojin Lee, Taehyun Hwang, Suji Kang, Taeho Moon,* and Byungwoo Park*
      Nanoscale Research Letters 9, 295 (2014)
      DOI: 10.1186/1556-276X-9-295

      03. Oriented Hierarchical Porous TiO2 Nanowires on Ti Substrate: Evolution of Nanostructures for Dye-Sensitized Solar Cells
       Byungho Lee,+ Jae Ik Kim,+ Sangheon Lee, Taehyun Hwang, Seunghoon Nam, Hongsik Choi, Kunsu Kim, Jaewon Kim, and Byungwoo Park*
      Electrochimica Acta 145, 231-236 (2014)
      DOI: 10.1016/j.electacta.2014.09.015

      02. Enhanced Rate Capability of LiMn0.9Mg0.1PO4 Nanoplates by Reduced Graphene Oxide/Carbon Double Coating for Li-Ion Batteries
       Sungun Wi, Jaewon Kim, Seunghoon Nam, Joonhyeon Kang, Sangheon Lee, Hyungsub Woo, Moosang Lee, Chong Ho Sonu, Taeho Moon,* and Byungwoo Park*
      Current Applied Physics 14(5), 725-730 (2014)
      DOI: 10.1016/j.cap.2014.03.001

      01. Effective Wrapping of Graphene on Individual Li4Ti5O12 Grains for High-Rate Li-Ion Batteries
       Yuhong Oh,+ Seunghoon Nam,+ Sungun Wi, Joonhyeon Kang, Taehyun Hwang, Sangheon Lee, Helen Hejin Park, Jordi Cabana, Chunjoong Kim,* and Byungwoo Park*
      Journal of Materials Chemistry A 2, 2023-2027 (2014)
      DOI: 10.1039/C3TA14347C

      🛠️ PATENTS

      06. Method and Electronic Devices for Forecasting Remaining Useful Life (RUL) of Battery
       Subhasmita Sahoo, Krishnan S Hariharan, Samarth Agarwal, Subramanian Swernath Brahmadathan, and Sangheon Lee
      US Patent App. No. 18/327395 (2024)

      05. Electronic Apparatus and Controlling Method Thereof
       Ankit Yadu, Subramanian Swernath Brahmadathan, Samarth Agarwal, Krishnan S Hariharan, Seongho Han, and Sangheon Lee
      US Patent App. No. 18/507825 (2023)

      04. Method and Electronic Device for Charging Battery
       Sangheon Lee, and Youngju Kim
      US Patent App. No. 18/347880 (2023)

      03. Systems and Methods for Intelligent Management of a Battery
       Samarth Agarwal, Sangheon Lee, Krishnan S Hariharan, Seongho Han, Roshan Bharti, and Ankit Yadu
      US Patent App. No. 18/296618 (2023)

      02. Method for Controlling Current Ratio Between Multiple Battery Cells Connected in Parallel, and Control System Therefor
       Sangheon Lee
      US Patent App. No. 18/094621 (2023)

      01. Electornic Devices with Structure for Harvesting Energy
       Sangheon Lee, Seongjin An, Bookeun Oh, and Jaeyeon Lee
      US Patent 11533005 (2022)

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