2.20 Batteries

Xiong, Hui; Dufek, Eric J.; Gering, Kevin L.

doi:10.1016/b978-0-12-809597-3.00245-5

Cited by 12 publications

(7 citation statements)

References 211 publications

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“…[4] However, because of the low specific capacity of the commonly utilized graphite-based anode (372 mAh g À 1 ), the LIBs technology struggles to catch up with the advanced electric demand. [5][6][7] Silicon, one of the substitutive materials for graph-ite, has emerged as the most attractive contender for its abundance and high theoretical specific energy density (3 592 mAh g À 1 ). [8][9][10][11] Despite those advantageous characteristics as the active material for the anode, silicon still faces two basic challenges, namely large volume expansion during the lithiation/delithiation and poor conductivity, which hinder the practical applications of Si anode in LIBs.…”

Section: Introductionmentioning

confidence: 99%

A Free‐Standing Polyaniline/Silicon Nanowire Forest as the Anode for Lithium‐ion Batteries

Eldona

Hawari

Hamid

et al. 2022

Chemistry An Asian Journal

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Despite its high theoretical capacity, silicon anode has limited intrinsic conductivity and experiences significant volume changes during charge-discharge. To overcome these issues, facile metal-assisted chemical etching and in-situ polymerization of aniline are employed to produce a dense 1D polyaniline/silicon nanowire forest without noticeable agglomeration as a free-standing anode for lithium-ion batteries. This hybrid electrode possesses high cycling performance, delivering a stable capacity capped at 2 mAh cm À 2 for 346 cycles of charge-discharge. Maximum capacity of 2 mAh cm À 2 is also achievable at high-rate cell testing of 2 mA cm À 2 , which cannot be obtained by the anode with plain silicon wafer and silicon nanowire only. The introduction of polyaniline on the silicon nanowire is shown to reduce the solid electrolyte interface (SEI) resistance, stabilize the SEI layer, further alleviate the effect of volume changes, and boost the conductivity of the hybrid anode, resulting in the high electrochemical performance of the anode.

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Section: Introductionmentioning

confidence: 99%

A Free‐Standing Polyaniline/Silicon Nanowire Forest as the Anode for Lithium‐ion Batteries

Eldona

Hawari

Hamid

et al. 2022

Chemistry An Asian Journal

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“…Contribution of renewable energy sources to the electric grid is expected to continue to grow in the foreseeable future. However, the renewable energy sources are highly intermittent and variable. − As a result, fossil-fueled power plants need to undergo rapid load-following and low-load operation, affecting their efficiency and leading to adverse effects on the plant health. − Energy storage is one of the potential options for addressing these issues. − …”

Section: Introductionmentioning

confidence: 99%

Transient Modeling of a Vanadium Redox Flow Battery and Real-Time Monitoring of Its Capacity and State of Charge

Vudata

Bhattacharyya

2022

Ind. Eng. Chem. Res.

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The vanadium redox flow battery (VRFB) is a rechargeable flow battery that is one of the most promising large-scale energy storage systems making it suitable for grid-level energy storage. However, the self-discharge reactions along with the undesired side reactions and water transfer through the membrane cause imbalance in the electrolyte and state of charge, which can significantly reduce the capacity of these batteries. A first-principles, 2D electrochemical dynamic model of all-VRFB is developed. The electrochemical model includes self-discharge reactions caused by diffusion, convection, and migration of the vanadium ions from one half-cell to the other. In addition, side reactions leading to evolution of hydrogen and oxygen are modeled. Water transport through the membrane is modeled by considering transport of water along with vanadium ions due to electro-osmotic drag and diffusion between two electrolyte half-cells. The model is validated with the experimental data. A filtering approach is developed for co-estimation of state of charge and capacity. Using a state-space model identified using the data generated by the pseudo-random binary sequence in the current and electrolyte flowrates, the filtering approach is found to yield satisfactory estimation of the state of charge and capacity by using voltage as the only measured output variable.

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“…Las baterías son parte de un creciente mercado que mueve billones de dólares. Por ejemplo, se estima que el mercado de las baterías de ácido plomo alcance el orden de los 70.1 mil de millones de dólares para el 2023 mientras que las baterías de litio deberán alcanzar los 105 mil millones de dólares para el 2025 [1] [2]. En términos generales se espera que el mercado de baterías tenga un incremento del 6.63% en la tasa de crecimiento anual compuesto (CAGR) en los próximos 9 años [1].…”

Section: Introductionunclassified

“…El ánodo sufre una reacción de oxidación durante el proceso de descarga mientras que en el proceso de carga sufre una reacción de reducción. Para el caso de cátodo tenemos una reacción de reducción durante el proceso de descarga y una reacción de oxidación durante el proceso de carga [2]. Durante la reacción de oxidación se presenta una pérdida de electrones mientras que en la reacción de reducción se tiene una ganancia de electrones.…”

Section: Introductionunclassified

Baterías de Ion Litio: características y aplicaciones

Quintero

2021

I+D Tecnológico

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Las baterías han sido parte de nuestra vida por más de 100 años. Ellas han sido utilizadas en diferentes aplicaciones desde una simple calculadora científica hasta en vehículos eléctricos, robots y satélites. A través de los años diversos tipos de baterías han sido fabricados todos con la finalidad de mejorar su rendimiento. En la actualidad las baterías de iones de litio han sido usadas con mayor frecuencia debido a su alta densidad de energía, su alta eficiencia energética y a su prolongado tiempo de vida. Este trabajo presenta un resumen de aspectos relevantes sobre las baterías de iones de litio. El artículo desarrollado introduce la terminología relacionada al mundo de las baterías. Además, estudia las características y herramientas que hacen a las baterías de iones de litio una de las baterías más utilizadas actualmente. Por otro lado, este estudio menciona aspectos relevantes de un sistema de gestión de baterías, herramienta necesaria para salvaguardar el funcionamiento y vida de la batería.

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2.20 Batteries

Cited by 12 publications

References 211 publications

A Free‐Standing Polyaniline/Silicon Nanowire Forest as the Anode for Lithium‐ion Batteries

A Free‐Standing Polyaniline/Silicon Nanowire Forest as the Anode for Lithium‐ion Batteries

Transient Modeling of a Vanadium Redox Flow Battery and Real-Time Monitoring of Its Capacity and State of Charge

Baterías de Ion Litio: características y aplicaciones

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