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Lithium-Ion Battery Technologies for Electric Mobility – State-of-the-Art Scenario

ARAI Journal of Mobility Technology ; Accepted Date: May 13, 2021 Perspectives DOI: https://doi.org/10.37285/ajmt.1.2.10 Author(s): Nagmani , Debanjana Pahari, Ashwani Tyagi, Sreeraj Puravankara Abstract:

Effect of pore morphology on the enhanced potassium storage in hard carbon derived from polyvinyl chloride for K-ion batteries

E lectrochimica Acta : (IF = 6.6 ); Publication Date: 20 July 2023 DOI: https://doi.org/10.1016/j.electacta.2023.142903 Author(s): Nagmani , A Tyagi. P Verma, and Sreeraj Puravankara Abstract Potassium-ion batteries (PIBs), with a bigger shuttling cation ( K + ), compete with Lithium-ion batteries (LIBs) for future energy storage due to the higher mobility of the solvated ions and lesser desolvation energy during energy storage. Developing stable anode material with excellent battery metrics is challenging in PIBs. Graphite, a promising anode for PIBs, faces poor structural stability from massive volume expansion of 61% during intercalation. The hard carbons (HCs) with a pseudo graphitic domain with rich pores and defects can accommodate more potassium ions without significant structural degradation. In this work, we upcycled the polyvinylidene chloride (PVC) to synthesize low-cost, green, and sust...

Utilization of PET derived hard carbon as a battery-type, higher plateau capacity anode for sodium-ion and potassium-ion batteries

Journal of Electroanalytical Chemistry : (IF = 4.5 ); Publication Date: 20 August 2023 DOI: https://doi.org/10.1016/j.jelechem.2023.117731 Author(s): Nagmani , and Sreeraj Puravankara Abstract Trash to Treasure is a less energy-intensive approach for upcycling plastic waste into value-added products to generate sustainable, cost-effective, eco-friendly materials. The carbonization of polyethylene terephthalate (PET) via a single-step process into hard carbon (HC) delivers a high-performing anode material for sodium-ion batteries (SIBs) and potassium-ion batteries (PIBs). Direct pyrolysis of PET waste increases the interlayer spacing with partially closed slit-shaped micro and mesopores that significantly improves the lower potential plateau-based capacity to 68% of the total capacity, validating a battery-type anode material. The HC carbonized at 1000℃ delivers a reversible capacity of 337 mAh/g with capacity retention of 88% after...

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