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Dr. Nagmani

Project Scientist at Department of Sustainable Energy Engineering, Indian Institute of Technology Kanpur. Ph.D. from School of Energy Science and Engineering, Indian Institute of Technology Kharagpur

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Breakthrough in Sodium-Ion Battery Technology: Unmodified Hard Carbon Anode with High Capacity of 422 mAh/g and Energy Density Unveiled

Posted by Poonam Sinha on April 11, 2024

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Convocation: Gold Medalist with Hon'ble President of India

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The Future of mobility is Electric (e-Mobility) for sustainable eco-system: Sodium-Ion Battery ( A Technology Beyond Lithium-Ion Battery)

Introduction to electric mobility – Battery on wheels Electric mobility in the 21 st century by Nagmani Transportation and vehicular mobility have been significant aspects of modern civilization, ensuring connectivity and facilitating socio-economical development. The majority of automobiles on the road today run with conventional fossil fuels like gasoline and diesel . In an Internal Combustion Engine (ICE), incomplete combustion results in greenhouse gas (GHG) emissions contributing to 25% of the total GHG emissions worldwide. As the global consensus grew, green and sustainable alternatives emerged towards the electrification of transportation sectors worldwide. However, electric vehicles (EVs) are historically older technologies as compared to ICE-based automobiles. 1 Battery-powered cars first appeared in the early 1800s, followed by electrified locomotives in the 1830s. 2 Patents were granted in England and America in 1840 and 1847 to use electrified rails. 3 ...

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...

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:

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