faculty-profile Postdoc

Dr. Ragammanavara Santhappa

info

Assistant Professor

Electronics and Communication Engineering

Kyung Hee University, South Korea

1

Teaching, Research and Development (Batteries and supercapacitors)

Dr. Ragammanavara Santhappa’s focus on electrochemical energy storage, particularly high-performance rechargeable batteries, including lithium-, sodium-, and zinc-ion batteries, as well as lithium–sulfur and sodium–sulfur batteries. He also works on flexible and stretchable supercapacitors based on advanced layered materials. His research further focuses on developing advanced characterization and analytical approaches to understand the nucleation and growth of the solid electrolyte interphase (SEI) and metal dendrites, with particular emphasis on improving the performance, safety, and stability of all-solid-state batteries.

Mail: santhappa@sru.edu.in

info https://researchid.co/santhappa

Educational
Qualifications
(From Highest)

2025

Ph.d in Electronics and Communication Engineering, Kyung Hee University, South Korea

2018

Master of Science (M.Sc) in Physics, Department of Physics, Pondicherry University, Puducherry, India

2015

Government First Grade Collage (GFGC) Tumkur, Tumkur University, Tumkur, Karnataka, India

Key Publications

Ashok Kumar Kakarla, Hari Bandi, R Shanthappa, Wasim Akram Syed, Jae Su Yu Metal–organic framework-derived selenium-doped manganese oxide@carbon composite for durable aqueous zinc-ion batteries https://doi.org/10.1016/j.progsolidstchem.2026.100604.

Hari Bandi, R. Shanthappa, Sowjanya Vallem, Daniel Ioan Stroe, and Jae Su Yu*Eco-Friendly Synthesis of Hierarchical Heterostructured CsV3O8/V2O5 Composite Cathode: Lattice Stabilization and Vanadium Dissolution Resistance for Long-Life Aqueous Zinc-Ion Batteries", Adv. Compos. Hybrid Mater.

T. Wang, Y. Xiao, S. Xu, W. Xiang, S. Tang, O. R. Ankinapalli, A. R. Mule, R. Shanthappa, J. S. Yu. A robust dual-layer interphase with zincophilic and anticorrosion properties for stabilizing Zn metal anodes. Small, 2025. DOI: https://doi.org/10.1002/smll.202509982.

W. A. Syed, A. K. Kakarla, H. Bandi, R. Shanthappa, J. S. Yu. Effect of ammonia treatment on magnesium–manganese oxide for aqueous zinc-ion batteries. Journal of Magnesium and Alloys, 2025, 13, 3271–3286. DOI: https://doi.org/10.1016/j.jma.2025.06.010.

D. Narsimulu, B. N. Vamsi Krishna, R. Shanthappa, Hari Bandi, and Jae Su Yu* High-Capacity and Long-Life Manganese Vanadium Oxide Composite as a Cathode for Aqueous Zinc-Ion Batteries. Advanced Materials Technology, 2023, 2300484. DOI: https://doi.org/10.1002/admt.202300484.

H. Bandi, R. Shanthappa, et al. Green synthesis of Ag-decorated CoMoO? nanorods for high-performance Li? storage. Chemical Engineering Journal, 2025. DOI: https://doi.org/10.1016/j.cej.2025.160748.

H. Bandi, R. Shanthappa, et al. Nickel vanadate cathode induced in-situ phase transition for improved zinc storage. Small, 2024. DOI: https://doi.org/10.1002/smll.202408568.

D. Narsimulu, B. N. Rao, R. Shanthappa, et al. Cobalt vanadate as high-capacity and durable anode for lithium-ion batteries. Journal of Energy Storage, 2024, 101, 113925. DOI: https://doi.org/10.1016/j.est.2024.113925.

A. K. Kakarla, R. Shanthappa, et al. Energy storage mechanism of MOF-derived copper vanadium oxides for Zn-ion batteries. Small Methods, 2024, 2400819. DOI: https://doi.org/10.1002/smtd.202400819.

A. K. Kakarla, R. Shanthappa, et al. Mg²? pre-intercalated potassium vanadate for durable aqueous zinc-ion batteries. Journal of Magnesium and Alloys, 2024. DOI: https://doi.org/10.1016/j.jma.2024.08.018.

W. A. Syed, R. Shanthappa, et al. Copper substituted manganese Prussian blue analogue for efficient aqueous zinc-ion batteries. Journal of Energy Storage, 2024, 99, 113325. DOI: https://doi.org/10.1016/j.est.2024.113325.

W. A. Syed, R. Shanthappa, J. S. Yu. V?O?@MoS? nanocomposites as advanced cathode for Zn-ion batteries. Sustainable Materials and Technologies, 2024, 40, e00968. DOI: https://doi.org/10.1016/j.susmat.2024.e00968.

A. K. Kakarla, R. Shanthappa, et al. Porous Fe?VO? hybrid composite as anode for lithium-ion batteries. Journal of Alloys and Compounds, 2023, 960, 170784. DOI: https://doi.org/10.1016/j.jallcom.2023.170784.

H. Bandi, R. Shanthappa, et al. Hexagonal zinc vanadate nanostructures for lithium-ion batteries and NH? gas sensors. Materials Today Chemistry, 2023, 33, 101689. DOI: https://doi.org/10.1016/j.mtchem.2023.101689.

H. Bandi, R. Shanthappa, et al. Acid-treated MWCNT interlinked nickel vanadate microcomposites for lithium-ion batteries. International Journal of Energy Research, 2022, 46, 23796–23807. DOI: https://doi.org/10.1002/er.8677.

A. K. Kakarla, R. Shanthappa, et al. Mesoporous FeVO? as a negative electrode for lithium-ion batteries. International Journal of Energy Research, 2022, 46, 13590–13601. DOI: https://doi.org/10.1002/er.8080.

T. Wang, R. Shanthappa, J. S. Yu. MXene–MoS? heterostructure for advanced sodium-ion battery anode. Chemical Engineering Journal, 2023, 457, 141363. DOI: https://doi.org/10.1016/j.cej.2023.141363.

D. Narsimulu, A. K. Kakarla, R. Shanthappa, J. S. Yu. Ni?O?–Co?O?@MoS? hollow nanocubes for high-performance energy storage. Journal of Alloys and Compounds, 2022, 922, 166131. DOI: https://doi.org/10.1016/j.jallcom.2022.166131.

A. K. Kakarla, R. Shanthappa, et al. Polyaniline layered N-doped carbon-coated iron oxide nanocapsules for Li-ion anode and oxygen evolution reaction. Carbon, 2024, 228, 119308. DOI: https://doi.org/10.1016/j.carbon.2024.119308.

D. Narsimulu, A. K. Kakarla, R. Shanthappa, J. S. Yu. Carbon fiber cloth supported 3D porous nickel oxide composite as high-performance flexible anode for sodium- and lithium-ion batteries. Journal of Materials Research and Technology, 2022, 17, 3234–3245. DOI: https://doi.org/10.1016/j.jmrt.2022.02.017.

D. Narsimulu, B. V. Krishna, R. Shanthappa, J. S. Yu. Oxygenated copper vanadium selenide composite nanostructures as a cathode material for zinc-ion batteries with high stability up to 10,000 cycles. Nanoscale, 2023, 15, 3978–3990. DOI: https://doi.org/10.1039/D2NR06648C.

K. Kakarla, H. Bandi, R. Shanthappa, J. S. Yu. Carbon-shielded selenium-rich trimetallic selenides as advanced electrode material for durable Li-ion batteries and supercapacitors. Small Methods, 2023, 7, 2201315. DOI: https://doi.org/10.1002/smtd.202201315.

D. Narsimulu, R. Shanthappa, et al. Two-dimensional porous ?-Co(OH)? and Co?O? hexagonal nanoplates as stable and high-performance anode for lithium-ion batteries. Journal of Alloys and Compounds, 2023, 933, 167618. DOI: https://doi.org/10.1016/j.jallcom.2022.167618.

D. Narsimulu, R. Shanthappa, H. Bandi, J. S. Yu. High-capacity calcium vanadate composite with long-term cyclability as a cathode material for aqueous zinc-ion batteries. ACS Sustainable Chemistry & Engineering, 2023, 11, 12571–12582. DOI: https://doi.org/10.1021/acssuschemeng.3c01954.

R. Shanthappa, Sharath Kumar Maddhi, and Jae Su Yu* Selenium-incorporated iron vanadate as a cathode material for high-performance aqueous zinc-ion batteries, https://doi.org/10.1016/j.jpowsour.2026.241070.

R. Shanthappa, A. K. Kakarla, H. Bandi, W. A. Syed, J. S. Yu. Unraveling electrochemical performance of magnesium–vanadate-based nanostructures as advanced cathodes for aqueous zinc-ion batteries. Journal of Magnesium and Alloys, 2025. DOI: https://doi.org/10.1016/j.jma.2025.02.014.

R. Shanthappa, D. Narsimulu, A. K. Kakarla, J. S. Yu. Nitrogen-doped reduced graphene oxide incorporated porous rod-like cobalt molybdate as an anode for high-capacity long-life lithium-ion batteries. International Journal of Energy Research, 2021, 45, 19509–19520. DOI: https://doi.org/10.1002/er.7052.

R. Shanthappa, A. K. Kakarla, D. Narsimulu, H. Bandi, J. S. Yu. Multi-walled carbon nanotubes interlinked vanadium selenite nanocomposites as a positive electrode for high-performance aqueous zinc-ion batteries. Journal of Alloys and Compounds, 2023, 935, 168102. DOI: https://doi.org/10.1016/j.jallcom.2022.168102

R. Shanthappa, D. Narsimulu, A. K. Kakarla, J. S. Yu. MgV?O? incorporated carbon nanofibers as anode material for high-performance lithium-ion batteries. Journal of Alloys and Compounds, 2024, 971, 172606. DOI: https://doi.org/10.1016/j.jallcom.2023.172606

R. Shanthappa, A. K. Kakarla, D. Narsimulu, H. Bandi, W. A. Syed, T. Wang, J. S. Yu. Hydrogen peroxide tuned morphology and crystal structure of barium vanadate-based nanostructures for aqueous zinc-ion storage properties. Small Methods, 2023, 2301398. DOI: https://doi.org/10.1002/smtd.202301398.

R. Shanthappa, O. R. Ankinapalli, A. K. Kakarla, D. Narsimulu, H. Bandi, W. A. Syed, J. S. Yu. Selenium incorporated sodium vanadate nanobelts as high-performance electrode material for long-lasting aqueous zinc-ion batteries and supercapacitors. Chemical Engineering Journal, 2023, 476, 146777. DOI: https://doi.org/10.1016/j.cej.2023.146777.

Awards and Honors / Achievements

Project

CSIR-JRF-NET

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