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Optimizing the Total Life Cycle of L...

Adewuyi, Kasim Adesegun,

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Optimizing the Total Life Cycle of Li-Ion Batteries: From Constant Gradient Charging to Aged Cell Performance Restoration /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Optimizing the Total Life Cycle of Li-Ion Batteries: From Constant Gradient Charging to Aged Cell Performance Restoration // Kasim Adesegun Adewuyi.
Author:	Adewuyi, Kasim Adesegun,
Description:	1 electronic resource (120 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
Contained By:	Dissertations Abstracts International86-03B.
Subject:	Energy. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31486774
ISBN:	9798384090502

Optimizing the Total Life Cycle of Li-Ion Batteries: From Constant Gradient Charging to Aged Cell Performance Restoration /
Adewuyi, Kasim Adesegun,

Optimizing the Total Life Cycle of Li-Ion Batteries: From Constant Gradient Charging to Aged Cell Performance Restoration /Kasim Adesegun Adewuyi. - 1 electronic resource (120 pages)

Source: Dissertations Abstracts International, Volume: 86-03, Section: B.

As demand for Lithium-Ion Batteries (LIBs) have skyrocketed over the past decade, the need for better charging methodologies and recycling methods have become vitally important. At a fundamental level, this dissertation strives to fulfill the green promise of a future without fossil fuels. In order to promote a transition away from fossil fuels, LIBs for vehicles require ultrafast charging times equivalent to a normal vehicle (6 mins). However, this process leads to high volume expansion for next generation electrode materials which causes degradation. Without limiting this factor, the environmental impact shifts from oil rigs to Li mines and landfills.The first paper shows a novel optimal charging protocol focusing on the relationship between concentration gradients and degradation, and state-of-charge-dependent diffusivity. The paper demonstrates a constant gradient constant voltage charging approach (CGCV) that controls this gradient in combination with diffusivity can create novel charging current profiles that maintain sufficiently low maximum stress.The second paper presents a facile direct recycling remanufacturing process that does not rely on elevated temperatures or harsh chemicals to recover pristine metals (Li, Ni, Co, etc) from spent electrodes. This paper introduces a more minimally invasive approach. A detailed investigation of treatment steps including plasma treatment, drying methodology, pressing, type of slurry addition, has enabled the development of an optimized process achieving high cell viability (>80%) and capacity performance for highly degraded electrodes.

English

ISBN: 9798384090502Subjects--Topical Terms:

876794
Energy.
Subjects--Index Terms:

Green energy

Optimizing the Total Life Cycle of Li-Ion Batteries: From Constant Gradient Charging to Aged Cell Performance Restoration /
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520 $a As demand for Lithium-Ion Batteries (LIBs) have skyrocketed over the past decade, the need for better charging methodologies and recycling methods have become vitally important. At a fundamental level, this dissertation strives to fulfill the green promise of a future without fossil fuels. In order to promote a transition away from fossil fuels, LIBs for vehicles require ultrafast charging times equivalent to a normal vehicle (6 mins). However, this process leads to high volume expansion for next generation electrode materials which causes degradation. Without limiting this factor, the environmental impact shifts from oil rigs to Li mines and landfills.The first paper shows a novel optimal charging protocol focusing on the relationship between concentration gradients and degradation, and state-of-charge-dependent diffusivity. The paper demonstrates a constant gradient constant voltage charging approach (CGCV) that controls this gradient in combination with diffusivity can create novel charging current profiles that maintain sufficiently low maximum stress.The second paper presents a facile direct recycling remanufacturing process that does not rely on elevated temperatures or harsh chemicals to recover pristine metals (Li, Ni, Co, etc) from spent electrodes. This paper introduces a more minimally invasive approach. A detailed investigation of treatment steps including plasma treatment, drying methodology, pressing, type of slurry addition, has enabled the development of an optimized process achieving high cell viability (>80%) and capacity performance for highly degraded electrodes.
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653 $a Optimal charging
653 $a Remanufacturing
653 $a Total life cycle analysis
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