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pro vyhledávání: '"Please"'
Over the long timescale of many charge/discharge cycles, gas formation can result in large bulging deformations of a Lithium-ion pouch cell, which is a key failure mechanism in batteries. Guided by recent experimental X-ray tomography data of a bulgi
Externí odkaz:
http://arxiv.org/abs/2411.13197
In a pouch cell battery, the intercalation of lithium ions into the active particles means the electrodes want to expand. However, since the electrodes are attached to stiff current collectors, this expansion is constrained, leading to a macro-scale
Externí odkaz:
http://arxiv.org/abs/2407.00373
In this work we analyse the local nonlinear electrochemical impedance spectroscopy (NLEIS) response of a lithium-ion battery and estimate model parameters from measured NLEIS data. The analysis assumes a single-particle model including nonlinear diff
Externí odkaz:
http://arxiv.org/abs/2209.03961
Autor:
Mansoor Khan, Mahmood F Bhutta, Helen Please, William Bolton, Dimitra Petrakaki, Jagtar Dhanda, Karamveer Narang, Mike Nsubuga, Henry Luweesi, Ndiwalana Billy Richards, John Dalton, Catherine Tendo, Daudi Jjingo
Publikováno v:
BMJ Open Quality, Vol 13, Iss 1 (2024)
Introduction The extensive resources needed to train surgeons and maintain skill levels in low-income and middle-income countries (LMICs) are limited and confined to urban settings. Surgical education of remote/rural doctors is, therefore, paramount.
Externí odkaz:
https://doaj.org/article/9157825ecd5a42fd8009855c183ed64a
In the lithium-ion battery literature, discharges followed by a relaxation to equilibrium are frequently used to validate models and their parametrizations. Good agreement with experiment during discharge is easily attained with a pseudo-two-dimensio
Externí odkaz:
http://arxiv.org/abs/2104.12626
Autor:
Anna Littlejohns, Helen Please, Racheal Musasizi, Stuart Murdoch, Gorret Nampiina, Ian Waters, William Davis Birch, Gregory de Boer, Nikil Kapur, Tumwesigye Ambrozi, Ninsiima Carol, Nakigudde Noel, Jiten Parmar, Peter Culmer, Tom Lawton, Edith Namulema
Publikováno v:
Tropical Medicine and Health, Vol 51, Iss 1, Pp 1-10 (2023)
Abstract Background Continuous positive airway pressure (CPAP) has been a key treatment modality for Coronavirus Disease 2019 (COVID-19) worldwide. Globally, the demand for CPAP outstripped the supply during the pandemic. The LeVe CPAP System was dev
Externí odkaz:
https://doaj.org/article/352a33db1d5f492587a8aa53fa81b8ae
Asymptotic homogenisation is used to systematically derive reduced-order macroscopic models of conductive behaviour in spirally-wound layered materials in which the layers have very different conductivities. The problem is motivated by the need for s
Externí odkaz:
http://arxiv.org/abs/2011.04187
For many practical applications, fully coupled three-dimensional models describing the behaviour of lithium-ion pouch cells are too computationally expensive. However, owing to the small aspect ratio of typical pouch cell designs, such models are wel
Externí odkaz:
http://arxiv.org/abs/2008.03691
In mathematical models of lithium-ion batteries, the highly heterogeneous porous electrodes are frequently approximated as comprising spherical particles of uniform size, leading to the commonly-used single-particle model (SPM) when transport in the
Externí odkaz:
http://arxiv.org/abs/2006.12208