D
Dongkyu Kim
Researcher at Sogang University
Publications - 15
Citations - 277
Dongkyu Kim is an academic researcher from Sogang University. The author has contributed to research in topics: Ionic conductivity & Electrolyte. The author has an hindex of 7, co-authored 15 publications receiving 194 citations.
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Poly(ethylene oxide)-lithium difluoro(oxalato)borate new solid polymer electrolytes: ion–polymer interaction, structural, thermal, and ionic conductivity studies
TL;DR: In this paper, a high molecular weight poly(ethylene oxide) (PEO) complexed with lithium difluoro(oxalato)borate (LiDFOB) salt in various EO:Li molar ratios from 30:1 to 8:1 were prepared by using solution casting technique.
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New solid polymer electrolytes (PEO 20 –LiTDI–SN) for lithium batteries: structural, thermal and ionic conductivity studies
TL;DR: In this paper, solid polymer electrolyte films based on Poly(ethylene oxide) (PEO) have been prepared by solution casting technique using acetonitrile as a solvent and Succinonitrile (SN) was used as a plasticizer and lithium 4,5-dicyano-2-(trifluoromethyl)imidazole (LiTDI) as a doping salt.
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Effect of POSS-PEG hybrid nanoparticles on cycling performance of polyether-LiDFOB based solid polymer electrolytes for all solid-state Li-ion battery applications
Anji Reddy Polu,Anji Reddy Polu,Hee-Woo Rhee,M. Jeevan Kumar Reddy,A.M. Shanmugharaj,Sung Hun Ryu,Dongkyu Kim +6 more
TL;DR: In this paper, the consequences of organic-inorganic hybrid nanoparticle polyhedral oligomeric silsesquioxane-polyethylene glycol (POSS-PEG) on the physicochemical and electrochemical properties of poly(ethylene oxide) (PEO)-lithium difluoro(oxalato)borate (LiDFOB) based nanocomposite solid polymer electrolyte (NSPE) membranes were systematically prepared and utilized as an active separator for battery applications.
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An enhanced electrochemical and cycling properties of novel boronic Ionic liquid based ternary gel polymer electrolytes for rechargeable Li/LiCoO 2 cells
K. Karuppasamy,Hyun-Seok Kim,Dongkyu Kim,Dhanasekaran Vikraman,Kadirvelayutham Prasanna,A. Kathalingam,Ramakant Sharma,Hee-Woo Rhee +7 more
TL;DR: A new generation of boronic ionic liquid namely 1-ethyl-3-methylimidazolium difluoro(oxalate)borate (EMImDFOB) was synthesized by metathesis reaction and plausibly demonstrated its feasibility to use in lithium ion batteries.
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Improved electrochemical, mechanical and transport properties of novel lithium bisnonafluoro-1-butanesulfonimidate (LiBNFSI) based solid polymer electrolytes for rechargeable lithium ion batteries
K. Karuppasamy,K. Karuppasamy,Dongkyu Kim,Yong Hee Kang,Kadirvelayutham Prasanna,Hee-Woo Rhee +5 more
TL;DR: In this paper, a new methodology for improving the ionic conductivity and cation transport properties of polymer electrolytes have been synthesized by adding bulky anion based novel lithium bisnonafluoro-1-butanesulfonimidate salt and characterized for its applications in lithium ion batteries.