A critical review of macroscopic modeling studies on Li O2 and Li–air batteries using organic electrolyte: Challenges and opportunities

Li, Xianglin; Huang, Jing; Faghri, Amir

doi:10.1016/j.jpowsour.2016.09.127

Cited by 62 publications

(48 citation statements)

References 186 publications

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“…To improve the performance of portable electronic devices, a range of batteries have been developed . Recently, Reddy et al.…”

Section: Figurementioning

confidence: 99%

“…To improve the performance of portable electronic devices, a range of batteries have been developed. [1][2][3][4][5][6][7][8][9][10][11] Recently, Reddy et al proposed a battery based on fluoride ion migration, [12] since then several research groups have further developed these batteries. [13][14][15] Our group has developed an organicsolvent-based electrolyte that contains supporting electrolyte salt and an anion acceptor (AA) for use in a fluoride shuttle battery (FSB).…”

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confidence: 99%

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Charge and Discharge Reactions of a Lead Fluoride Electrode in a Liquid‐Based Electrolyte for Fluoride Shuttle Batteries:‐The Role of Triphenylborane as an Anion Acceptor‐

et al. 2019

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Lead fluoride (PbF2) is a promising electrode material for fluoride shuttle batteries (FSBs) owing to its high theoretical capacity (219 mAh g–1). In this study, the discharge and charge capacities of a PbF2 electrode were measured using a bis[2‐(2‐methoxyethoxy)ethyl] ether containing cesium fluoride and triphenylborane as an electrolyte. A high specific capacity was maintained during both the discharge and charge processes in the first cycle, but the capacity decreased from the first charge process to the following discharge process. To clarify the electrochemical reaction mechanism, the dissolution and change in the electronic state of Pb at the PbF2 electrode during the discharge and charge processes were evaluated via atomic absorption spectrometry (AAS) and X‐ray photoelectron spectroscopy (XPS). The results obtained from AAS and XPS indicated that Pb was formed during the discharge process. Conversely, the formation of PbF2 and dissolution of Pb coexisted within the wide range of charge process. The PbF2 could react in the following cycle, but the dissolved Pb was unable to contribute to the following discharge/charge reaction. Therefore, after the initial charge process, the capacity decreased.

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“…To improve the performance of portable electronic devices, a range of batteries have been developed . Recently, Reddy et al.…”

Section: Figurementioning

confidence: 99%

mentioning

confidence: 99%

Charge and Discharge Reactions of a Lead Fluoride Electrode in a Liquid‐Based Electrolyte for Fluoride Shuttle Batteries:‐The Role of Triphenylborane as an Anion Acceptor‐

et al. 2019

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“…[13,14] The oxygen consumption rate can be modeled by the Tafel equation: [15] where i o is the exchange current density for ORR on the cathode surface and A s is the cathode specific surface area in m 2 m À 3 . [13,14] The oxygen consumption rate can be modeled by the Tafel equation: [15] where i o is the exchange current density for ORR on the cathode surface and A s is the cathode specific surface area in m 2 m À 3 .…”

Section: Design Considerationsmentioning

confidence: 99%

A Functionally Graded Cathode Architecture for Extending the Cycle‐Life of Potassium‐Oxygen Batteries

Gilmore

Sundaresan

2019

Batteries & Supercaps

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Potassium-Oxygen (KÀ O 2 ) batteries have a high theoretical energy density of 935 Wh kg À 1 due to a single-electron redox process in the reversible formation of potassium superoxide. Despite this advantage, standard KÀ O 2 batteries have limited cycle-life (5-10) due to molecular oxygen crossover from cathode to anode, resulting in side reactions forming undesired superoxide on the anode. In this article, a KÀ O 2 battery fabricated with a functionally-graded cathode (FGC) architecture is presented to address oxygen crossover at the cathode. This KÀ O 2 battery lasts > 125 cycles with minimal loss in coulombic efficiency when charged/discharged to 300 μAh (238 μAh cm À 2 ). The FGC is comprised of a carbon fiber layer, microporous carbon and polypyrrole doped with hexafluorophosphate. It provides a scalable architecture for regulating K + ion and oxygen transport at the cathode trilayer (liquid-solidair) interface. The PPy(PF 6 ) formed on the cathode is observed to have an ORR rate two orders greater than that of carbonbased electrodes, as it promotes the reversible formation of potassium superoxide at the cathode, minimizes the transport of molecular oxygen into the electrolyte, and subsequently improves anode stability and cycle-life of the KÀ O 2 battery. These improvements in performance with FGC come at a marginal increase in KÀ O 2 battery material cost, which is estimated to be $44 kWh À 1 . The combination of performance and cost kWh À 1 makes this architecture the most cost-effective electrochemical energy storage device for stationary applications.

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“…[21,22] These solubility and diffusion values are much higher than those reported for conventional ether-based electrolytes (1.2 10 À4 m and 2.1 10 À6 cm 2 s À1 ). [23] In the TCCF-containing LITFSI-TEGDME electrolyte a) without TCCF and b) with 2% TCCF at rates of 100, 500, and 1000 mA g À1 .c )Charge-discharge profiles of the Li-O 2 cells in 1 m LITFSI-TEGDMEelectrolyte with 2% TCCF at ahigh current density of 1000 mA g À1 and alimited capacity of 1000 mAh g À1 . d) XRD patterns of discharged and recharged super Pcathodes in 1 m LITFSI/TEGDME electrolyte with 2% TCCF.…”

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confidence: 99%

A Versatile Halide Ester Enabling Li‐Anode Stability and a High Rate Capability in Lithium–Oxygen Batteries

Wang

Zhang

et al. 2019

Angewandte Chemie

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Li-O 2 batteries are promising candidates for nextgeneration high-energy-density battery systems.H owever,t he main problems of Li-O 2 batteries include the poor rate capability of the cathode and the instability of the Li anode. Herein, an ester-based liquid additive,2 ,2,2-trichloroethyl chloroformate,w as introduced into the conventional electrolyte of aL i-O 2 battery.V ersatile effects of this additive on the oxygen cathode and the Li metal anode became evident. The Li-O 2 battery showed an outstanding rate capability of 2005 mAh g À1 with ar emarkably decreased charge potential at alarge current density of 1000 mA g À1 .The positive effect of the halide ester on the rate capacity is associated with the improved solubility of Li 2 O 2 in the electrolyte and the increased diffusion rate of O 2 .Furthermore,the ester promotes the formation of as olid-electrolyte interphase layer on the surface of the Li metal, which restrains the loss and volume change of the Li electrode during stripping and plating, thereby achieving ac ycling stability over 900 ha nd aL ic apacity utilization of up to 10 mAh cm À2 . Angewandte ChemieCommunications 2357

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A critical review of macroscopic modeling studies on Li O2 and Li–air batteries using organic electrolyte: Challenges and opportunities

Cited by 62 publications

References 186 publications

Charge and Discharge Reactions of a Lead Fluoride Electrode in a Liquid‐Based Electrolyte for Fluoride Shuttle Batteries:‐The Role of Triphenylborane as an Anion Acceptor‐

Charge and Discharge Reactions of a Lead Fluoride Electrode in a Liquid‐Based Electrolyte for Fluoride Shuttle Batteries:‐The Role of Triphenylborane as an Anion Acceptor‐

A Functionally Graded Cathode Architecture for Extending the Cycle‐Life of Potassium‐Oxygen Batteries

A Versatile Halide Ester Enabling Li‐Anode Stability and a High Rate Capability in Lithium–Oxygen Batteries

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