1. Title: High-Temperature Stable Composite Gel Polymer Electrolyte for Safer Sodium-Ion Batteries

   • Inventors: S. Janakiraman, Ashutosh Agrawal, Rasmita Biswal, P. K. Jha, D. Nayak, Venimadhav Adyam, Sudipto Ghosh

   • Patent No.: 535297 (Indian)

   • Grant Date: April 26, 2024

2. Title: Aluminum Substituted B-Type Electrode for Secondary Cell

   • Inventors: D. Nayak, P. K. Jha, Ashutosh Agrawal, S. Janakiraman, N. Vijay Prakash C, Koushik Biswas, Puravankara Sreeraj, S. Ghosh, A. Venimadhav

   • Patent No.: 455616 (Indian)

   • Grant Date: September 29, 2023

3. Title: Mesoporous Nitrogen-Doped Nano Carbon Anode for Sodium-Ion Battery and Preparation Method

• Inventors: Ashutosh Agrawal, Koushik Biswas, S. Janakiraman, Venimadhav A, Sudipto Ghosh

• Patent No.: 540458 (Indian)

• Grant Date: May 31, 2024

4. Title: METHOD & SYSTEM FOR FABRICATING A CELL SEPARATOR USING COAXIAL ELECTROSPINNING

• Inventors: Akash Kankane, Dhirendra Kumar Rai, S. Janakiraman

• Indian Patent Filed: 202521076163 (Application no.)

• Date: August 11, 2025

1. S. Janakiraman, Prakrathi Shreenath, "Friction Stir Surfacing", Lambert Academic Publishing, Germany, May 6, 2013. ISBN: 978-3659363214.

2. Abhijith Surendran, S. Janakiraman, Anandhan Srinivasan, "Separator Electrolyte Systems for Rechargeable Batteries", Lambert Academic Publishing, Germany, May 16, 2019. ISBN: 978-620-0-09123-9.

1. A. Kankane, D. Rai, S. Janakiraman,, “Mechanically Robust and Chemically Stable Separator Membrane Constituted of Electrospun Halloysite-Integrated Core–Shell Nanofibers for Sodium-Ion Batteries”, ACS Applied Nano Materials, 2025, https://doi.org/10.1021/acsanm.5c02746 

2. A. Gaur, N. Saurabh, A. Kankane, S. Janakiraman, S. Patel, “Electrospun polyvinylidene fluoride-ZnO composite fibers for pyrocatalytic wastewater treatment”, Cleaner Water, Volume 4, December 2025, Article 100108, https://doi.org/10.1016/j.clw.2025.100108 

3. A. Kankane, D.K. Rai, S. Janakiraman, “Synergistic effects of halloysite nanotubes in electrospun PVDF-HFP separator for advanced sodium ion battery”, Solid State Ionics, Volume 428, Published online: 1st October 2025, https://doi.org/10.1016/j.ssi.2025.116947 

4. M.Khalifa, S. Janakiraman, R. Biswal, S. Ghosh, A. Venimadhav, S. Anandhan, “Design and Development of a High-Performance Gel Polymer Electrolyte for Na-ion Battery from Halloysite Nanotube-dispersed PVDF Nanofabrics”, ACS Applied Engineering Materials, Published online: 12th June 2025, https://pubs.acs.org/doi/full/10.1021/acsaenm.5c00199

5. C. Shamitha, S. Janakiraman, S. Ghosh, A. Venimadhav, K. N. Prabhu, S. Anandhan, “Synthesis and Evaluation of a New Gel Polymer Electrolyte for High-performance Li-ion Batteries from Electrospun Nanocomposite of PVDF/Ca-Al   Layered   Double Hydroxide”,  Journal of Materials Research, https://doi.org/10.1557/s43578-022- 00700-4 

6. S. Janakiraman, Ashutosh Agrawal, Rasmita Biswal, A. Venimadhav, “An amorphous polyvinylidene fluoride-co-hexafluoropropylene based gel polymer electrolyte for sodium-ion cells”, Applied Surface Science Advances, Volume 6 100139 (2021), Pages 1-8. https://doi.org/10.1016/j.apsadv.2021.100139    

7. Rupali Singh, S. Janakiraman, Mohammed Khalifa, S. Anandhan, Sudipto Ghosh, A.Venimadhav & K. Biswas, “A high thermally stable polyacrylonitrile (PAN)-based gel polymer electrolyte for rechargeable Mg-ion battery”, Journal of Materials Science: Materials in Electronics, Volume 31 (2020), Pages 22912–22925. https://doi.org/10.1007/s10854-020-04818-1 

8. Rasmita Biswal, Debasis Nayak, S. Janakiraman, Vijay Prakash C, Sudipto Ghosh, Venimadhav Adyam, “Revisiting and enhancing electrochemical properties of SnO2 as anode for sodium-ion batteries”, Journal of Solid State Electrochemistry, Volume 25 (2020), Pages 561–573. https://doi.org/10.1007/s10008-020-04779-9 

9.  S. Janakiraman, Mohammed Khalifa, Rasmita Biswal, S. Ghosh, S. Anandhan, A.Venimadhav, “High performance electrospun nanofiber coated polypropylene membrane as a separator for sodium-ion batteries”, Journal of Power Sources, Volume 460 228060, (2020) Pages 1-10. https://doi.org/10.1016/j.jpowsour.2020.228060 

10. Rupali Singh, S Janakiraman, Ashutosh Agrawal, Debasis Nayak, Sudipto Ghosh, K. Biswas, “A high ionic conductive glass fiber-based ceramic electrolyte system for magnesium‒ion battery application”, Ceramics International, Volume 46, Issue 9 (2020), Pages 13677-13684, https://doi.org/10.1016/j.ceramint.2020.02.154 

11. Rupali Singh, S Janakiraman, Ashutosh Agrawal, Sudipto Ghosh, A Venimadhav, K. Biswas, “An amorphous poly (vinylidene fluoride-co-hexafluoropropylene) based gel polymer electrolyte for magnesium ion battery”, Journal of Electroanalytical Chemistry, Volume 858 113788 (2019), Pages 1-8. https://doi.org/10.1016/j.jelechem.2019.113788 

12. Rupali Singh, S Janakiraman, Mohammed Khalifa, S Anandhan, Sudipto Ghosh, A Venimadhav, K. Biswas, “An electroactive β‒phase PVDF membrane for gel polymer electrolyte in Mg-ion rechargeable battery application”, Journal of Electroanalytical Chemistry, Volume 851 113417 (2019), Pages 1-10. https://doi.org/10.1016/j.jelechem.2019.113417 

13. S. Janakiraman, A. Surendran, Rasmita Biswal, S. Ghosh, S. Anandhan, A.Venimadhav, “Electrospun electroactive polyvinylidene fluoride-based fibrous polymer electrolyte for sodium-ion batteries.” Materials Research Express 6 086318 (2019), Pages 1-12. https://doi.org/10.1088/2053-1591/ab226a 

14. Ashutosh Agrawal, S. Janakiraman, Koushik Biswas, Sanjeev K Srivastava, A.Venimadhav, S. Ghosh, “Understanding the improved electrochemical performance of nitrogen-doped hard carbons as an anode for sodium ion battery”, Electrochimica Acta, Volume 317 (2019), Pages 164-172. https://doi.org/10.1016/j.electacta.2019.05.158 

15. S. Janakiraman, A. Surendran, Rasmita Biswal, S. Ghosh, S. Anandhan, A.Venimadhav, “Electrochemical characterization of a polar β-phase poly(vinylidene fluoride gel electrolyte in sodium ion cell”, Journal of Electroanalytical Chemistry, Volume 833 (2019), Pages 411-417. https://doi.org/10.1016/j.jelechem.2018.12.011 

16. S. Janakiraman, A. Surendran, S. Ghosh, S. Anandhan, A.Venimadhav, “A new strategy of PVDF based Li-salt polymer electrolyte through electrospinning for lithium battery application.” Materials Research Express 6: 035303 (2019), Pages 1-13. https://doi.org/10.1088/2053-1591/aaf369 

17. Khalifa M, S. Janakiraman, Ghosh S, A. Venimadhav, S. Anandhan, “PVDF/Halloysite Nanocomposite-Based Non-Wovens as Gel Polymer Electrolyte for High Safety Lithium Ion Battery”, Polymer Composites, Volume 40 6 (2019), Pages: 2320-2334. https://doi.org/10.1002/pc.25043  

18. S. Janakiraman, Padmaraj O, Ghosh S, Venimadhav A, “A porous poly (vinylidene fluoride- co-hexafluoropropylene) based separator-cum-gel polymer electrolyte for sodium-ion battery”, Journal of Electroanalytical Chemistry, Volume 826 (2019), Pages 142– 149. https://doi.org/10.1016/j.jelechem.2018.08.032 

19. S. Janakiraman, A. Surendran, S. Ghosh, S. Anandhan, A.Venimadhav, “Electroactive poly(vinylidene fluoride) separator for sodium ion battery with high coulombic efficiency.” Solid State Ionics, Volume 292 (2016), Pages 130-135. https://doi.org/10.1016/j.ssi.2016.05.020 

20. S. Janakiraman and K. Udaya Bhat, (2012), “Formation of Composite Surface during Friction Surfacing of Steel with Aluminium”, Advances in Tribology, Volume. 2012, Article ID 614278 (2012), Pages 1-5. http://dx.doi.org/10.1155/2012/614278 

21. S. Janakiraman, J. Reddy, S. Kailas, and K. Udaya Bhat, “Surface Modification of Steels using Friction Stir Surfacing,” Materials Science Forum, Volume 710 (2012), Pages 258-263. doi:10.4028/www.scientific.net/MSF.710.258

1. S. Janakiraman, M. Khalifa, R. Biswal, S. Ghosh, S. Anandhan, and A. Venimadhav, “Comparative Studies on Crystalline and Amorphous Vinylidene Fluoride Based Fibrous Polymer Electrolytes for Sodium-Ion Batteries” in 'Recent Research Trends in Energy Storage Devices', ISBN: 978-981-15-6393-5, Y. Sharma et al. Eds., Springer Nature, Singapore, Pages: 55-64, 2020. https://doi.org/10.1007/978-98 

2. S. Janakiraman, S. Anandhan, A. Venimadhav, “Recent developments of polymer electrolytes for rechargeable sodium-ion batteries', in 'Progress in Polymer Research for Biomedical, Energy and Specialty Applications", S. Anandhan, A. Mahendran, M. Selvakumar, Eds., eBook ISBN: 9781003200710, CRC Press, USA, 2022. https://doi.org/10.1201/9781003200710 

3. Tanuj Vishwakarma, S Janakiraman, Ashish Rajak, “Physics Behind High Strain Rate Powder Compaction” in Sustainable Smart Manufacturing Processes in Industry 4.0, 1st edition, e-ISBN: 9781003436072, CRC Press, Taylor & Francis Group, Boca Raton. 2023. https://doi.org/10.1201/9781003436072 

4.  Rupali Singh, Mohammed Khalifa, S. Janakiraman, A. Venimadhav, S. Anandhan, K. Biswas, "Polymer electrolytes and separators for magnesium ion batteries" in “New Trends in Rechargeable Batteries, The Advanced Energy Storage Solutions” CRC Press, Taylor & Francis Group; Francis, USA-2021.

1. Rasmita Biswal, Vineeta Shukla, S. Janakiraman, Sudipto Ghosh, Venimadhav Adyam, “Novel dual core@shell Fe3O4@C@polypyrrole (PPy) composite for battery application,” Materials Today: Proceedings, Volume 33, Part 8, 2020, Pages 5088-5092 https://doi.org/10.1016/j.matpr.2020.02.850 

2.  S. Janakiraman and K. Udaya Bhat, (2014), “On line Monitoring of Quality of Friction Surfacing.” Advanced Materials Research, Volume 875-877 Pages 1285-1290. https://doi.org/10.4028/www.scientific.net/AMR.875-877.1285 

2025

1. Akash Kankane, Dhirendra K Rai, S. Janakiraman, “Synergistic Effects of Halloysite Nanotubes in Electrospun PVDF-HFP Separator for Sodium-Ion Battery Development,” International Conference on Sustainable Batteries (ICSB), Feb 24–27, 2025, TGA CREST, Kolkata.

2024

2. Akash Kankane, Dhirendra K Rai, S. Janakiraman, “Comparative analysis of different separator electrolyte systems: Characterization and electrochemical performance evaluation for Sodium-ion battery,” Energy and Environmental Materials (E2M), Jul 11–13, 2024, IIT Indore.

2023

3. Akash Kankane, Rasmita Biswal, Dhirendra K Rai, S. Janakiraman, “Biodegradable Ceramic Separator Electrolyte System for Sodium-Ion Battery Application,” International Meeting on Energy Storage Devices (IMESD), Dec 7–10, 2023, IIT Roorkee.

2019

4. S. Janakiraman, Rasmita Biswal, Sudipto Ghosh, A. Venimadhav, “Fabrication of amorphous electroactive polyvinylidene fluoride-co-hexafluoropropylene based gel polymer electrolyte for sodium ion batteries,” ICPCM-2019, Dec 12–14, 2019, NIT Rourkela, India. (Awarded 1st Prize in Oral Presentation)

5. Rasmita Biswal, Vineeta Shukla, S. Janakiraman, Sudipto Ghosh, Venimadhav Adyam, “Novel dual core@shell Fe₃O₄@C@polypyrrole (PPy) composite for battery application,” ICPCM-2019, Dec 12–14, 2019, NIT Rourkela, India.

6. Rupali Singh, S. Janakiraman, Ashutosh Agrawal, Debasis Nayak, Sudipto Ghosh, K. Biswas, “A compatibility study of Mg(TFSI)₂/PC electrolyte with different separators for magnesium-ion battery application,” ICPCM-2019, Dec 12–14, 2019, NIT Rourkela, India.

7. S. Janakiraman, Abhijith Surendran, Rasmita Biswal, Sudipto Ghosh, S. Anandhan, A. Venimadhav, “Preparation of nanofibrous electroactive polyvinylidene fluoride-based polymer electrolyte for sodium ion batteries,” E-MRS Spring Meeting, May 27–31, 2019, Nice, France.

2018

8. S. Janakiraman, M. Khalifa, S. Ghosh, S. Anandhan, A. Venimadhav, “Comparative studies on crystalline and amorphous vinylidene fluoride-based gel polymer electrolytes for sodium-ion battery,” International Meeting on Energy Storage Devices, Dec 10–12, 2018, IIT Roorkee, India.

9. Rasmita Biswal, S. Janakiraman, Debasis Nayak, Sudipto Ghosh, A. Venimadhav, “Electrochemical studies on SnO₂ thin films as an anode material for sodium-ion thin film batteries,” International Meeting on Energy Storage Devices, Dec 10–12, 2018, IIT Roorkee, India.

2017

10. M. Khalifa, S. Janakiraman, S. Ghosh, A. Venimadhav, S. Anandhan, “New Gel Polymer Electrolyte from Electrospun PVDF/Halloysite Nanocomposite-based Non-Woven Fabric for Lithium Ion Battery,” ICN:3I-2017, Dec 2017, IIT Roorkee, India.

11. Rasmita Biswal, Venimadhav Adyam, Debasis Nayak, S. Janakiraman, Sudipto Ghosh, “SnO₂ Thin Films as an Efficient Anode Material for Na-Ion Battery,” MRS Fall Meeting & Exhibit, Nov 27–Dec 2, 2017, Boston, USA.

12. M. Khalifa, S. Janakiraman, S. Ghosh, A. Venimadhav, S. Anandhan, “Development of Halloysite Nanotubes/Poly(vinylidene fluoride) Nanocomposite Nanofiber Separator for Lithium Ion Battery,” ICAPM 2017, Apr 2017, Mahatma Gandhi University, India.

2016

13. S. Janakiraman, A. Surendran, S. Ghosh, S. Anandhan, A. Venimadhav, “Synthesis and electrochemical studies of electroactive amorphous separator system for sodium-ion battery,” MRS Fall Meeting & Exhibit, Nov 27–Dec 2, 2016, Boston, USA.

14. S. Janakiraman, A. Surendran, S. Ghosh, S. Anandhan, A. Venimadhav, “Electroactive gel polymer electrolyte for lithium-ion battery with good ionic conductivity,” ICAMMP-2016, Nov 5–7, 2016, IIT Kharagpur, India.

15. S. Janakiraman, S. Ghosh, “Lithium-Ion Battery Technology and Mathematical Modeling,” Workshop, May 2016, IIT Kharagpur, India.

2015

16. S. Janakiraman, A. Surendran, S. Ghosh, S. Anandhan, A. Venimadhav, “Fabrication and Performance of Electroactive Gel Polymer Electrolyte for Sodium Ion Battery,” NMD-ATM 2015, Nov 13–15, 2015, India.

17. Debasis Nayak, S. Janakiraman, Ashutosh Agrawal, S. Ghosh, “Ancient Indian Battery,” 9th All India Student’s Conference on Science and Spiritual Quest, Oct 30–Nov 1, 2015, IIT Kharagpur, India.