Satish Bolloju

Improving cell longevity of high nickel single crystal NMC by reducing the contact resistance

E. Fiamegkou, Daniela Proprentner, Harry Gillions, Rebecca Sellers et autres

Surface oxygen loss driven degradation has restricted voltage operating windows and hindered the adoption of ever-increasing Ni-rich cathodes leading to cathodeengineering designs. Often overlooked in academic studies is the influence of electrode engineering through calendering on cell longevity. Here, we perform a …

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How Surface Reconstruction Drives Heterogeneous Bulk Delithiation in Single‐Crystalline Ni‐Rich Layered Oxide Cathodes

Gaurav C. Pandey, Ashok Menon, Valeria Calani San Miguel, José J. Arroyo‐Gómez et autres

The electrochemical performance of single‐crystalline (SC) Ni‐rich layered oxide cathodes is fundamentally limited by bulk Li + diffusion within micrometre‐sized particles. During high‐voltage cycling—necessary for high‐energy applications—intraparticle Li + diffusion is further impeded by oxygen‐loss‐induced surface reconstruction from the layered phase to …

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Demonstrating the dual role of AlxOy coatings on LiNiO2 cathodes in pouch cells via operando and surface-sensitive X-ray techniques

Muhammad Ans, Eleni Fiamegkou, Ashok S. Menon, Gaurav C. Pandey et autres

Lithium nickel oxide (LNO) cathodes offer high capacity for high-energy-density applications but suffer rapid degradation above 4.2 V due to surface and bulk instabilities. Here, we apply an ultrathin aluminum oxide coating using powder atomic layer deposition to improve surface stability. Pouch …

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How Surface Reconstruction Drives Heterogeneous Bulk Delithiation in Single-crystalline Ni-rich Layered Oxide Cathodes

Gaurav C. Pandey, Ashok Menon, Valeria Calani San Miguel, José J. Arroyo Gómez et autres

The electrochemical performance of single-crystalline Ni-rich layered oxide cathodes is fundamentally limited by bulk Li⁺ diffusion within micrometre-sized particles. During high-voltage cycling—necessary for high-energy applications—intraparticle Li⁺ diffusion is further impeded by oxygen-loss-induced surface reconstruction from the layered phase to spinel/rock-salt structures. Therefore, …

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Improving Cell Longevity of High Nickel Single Crystal NMC by Reducing the Contact Resistance

E. Fiamegkou, Daniela Proprentner, Harry Gillions, Rebecca Sellers et autres

Author response for "Enhanced cycling stability of LiNiO2 cathodes through a Mg/W dual-cation modification strategy"

Beth J. Johnston, Satish Bolloju, Stephen W. T. Price, Alexander G. Squires et autres

Author response for "Towards aromaticity: a driving force for the formation of gold nanoparticles"

N. Srinivasa Rao, Satish Bolloju, Dinabandhu Patra, Kamatham Narayanaswamy et autres

Author response for "Towards aromaticity: a driving force for the formation of gold nanoparticles"

N. Srinivasa Rao, Satish Bolloju, Dinabandhu Patra, Kamatham Narayanaswamy et autres

Demonstrating the Dual Role of AlxOy Coatings on LiNiO2 Cathodes in Pouch Cells via Operando and Surface-Sensitive X-ray Techniques

Muhammad Ans, Eleni Fiamegkou, Ashok S. Menon, Gaurav C. Pandey et autres

LiNiO2 (LNO) cathodes are regarded as promising materials for high-energy-density applications owing to their high practical capacity and competitive cost. However, over the course of cycling, they experience rapid capacity decay when cycled above 4.2 V (vs Li/Li+) through bulk and surface …

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A comparative life cycle assessment of different lithium ion anode manufacturing routes based on graphite and/or silicon

Michael Lain, You Wu, Aaron Smith, Satish Bolloju et autres

There is a continuing need to increase the energy density of lithium-ion cells, by introducing new anode materials and fabrication methods. One option is the direct deposition of silicon-based coatings, using plasma enhanced chemical vapour deposition (PECVD). However, it is important that …

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Unravelling the Role of AlxOy Coatings in LiNiO2 Cathodes via Operando and Surface-Sensitive X-ray Techniques

Muhammad Ans, Eleni Fiamegkou, Ashok S. Menon, Gaurav C. Pandey et autres

LiNiO2 (LNO) cathodes are regarded as promising materials for high-energy-density applications owing to their high practical capacity and competitive cost. However, over the course of cycling, they experience rapid capacity decay when cycled above 4.2 V (vs Li/Li+) through bulk and surface …

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From Salar to Cells: Validating Brine‐Sourced Li 2 CO 3 from Salar de Uyuni for Lithium‐Ion Battery Cell Manufacture

Satish Bolloju, Edgar Bautista Quisbert, Gerard Bree, Gaurav Pandey et autres

In this study, lithium carbonate (Li2CO3) sourced from the Salar de Uyuni salt flat in Bolivia was used in the synthesis of cathode active material for Li‐ion batteries. X‐ray diffraction, atomic absorption spectrometry, and scanning electron microscopy analyses confirmed that the material …

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