Advanced Hybrid Electrolyte Li-O2 Battery Realized by Dual Superlyophobic Membrane

Qiao, Yu; Wang, Qifei; Mu, Xiaowei; Deng, Han; He, Ping; Yu, Jihong; Zhou, Haoshen

doi:10.1016/j.joule.2019.09.002

Cited by 61 publications

(34 citation statements)

References 62 publications

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“…DBBQ is a typical RM for improving the discharging capacity while restraining the superoxide‐related parasitic reaction, and the TDPA could help decompose the Li 2 O 2 at a quite low charging potential. In this study, the dual RMs strategy based on DBBQ and TDPA in the catholyte also helps the effective and reversible formation/decomposition of Li 2 O 2 , which is confirmed by XRD, SEM (Figure S7, Supporting Information) and iodometric titration (Table S1, Supporting Information) 18,41,42. At the anode side, the Bp‐Li serves as a safe anode material with low working potential.…”

supporting

confidence: 57%

A Safe Organic Oxygen Battery Built with Li‐Based Liquid Anode and MOFs Separator

Deng

Chang

Qiu

et al. 2020

Advanced Energy Materials

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Safe rechargeable batteries of improved energy density and high power performance are urgently needed for the development of large electric devices. Herein, an Li‐based organic liquid anode is proposed, and an organic oxygen battery with a metal organic framework membrane separator is realized, which is able to conduct Li ions and separate other large species in the system. Equipped with the dual redox mediator strategy, the organic oxygen battery exhibits superior rate performance with long cycling life and low overpotential. A “solid electrolyte interface”‐like layer is observed between the organic liquid anode and the ion conducting separator. This work not only introduces a new type of anode for Li‐based batteries, but also provides fundamental insights for the better application of biphenyl‐based liquid anodes.

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confidence: 57%

A Safe Organic Oxygen Battery Built with Li‐Based Liquid Anode and MOFs Separator

Deng

Chang

Qiu

et al. 2020

Advanced Energy Materials

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“…Intrinsically, electrochemical reaction kinetics is undesirably retarded, giving rise to large potential hysteresis between ORR and OER. [4][5][6][7] To circumvent this notorious dilemma, the prevailing strategy lies on the exploitation of efficient catalysts (precious metals, carbonaceous materials, metallic oxides, sulfides, etc.) with synergistically tailored geometric constructions and electronic characteristics to manipulate Li 2 O 2 accommodations with optimized morphology and structure.…”

mentioning

confidence: 99%

Bifunctional Catalytic Activity Guided by Rich Crystal Defects in Ti₃C₂ MXene Quantum Dot Clusters for Li–O₂ Batteries

Wang

Zhao

Hui

et al. 2021

Advanced Energy Materials

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lithium-ion counterparts. This technologically favorable Li-O 2 battery works on the following principle: 2Li + + O 2 + 2e -⇔Li 2 O 2 (2.96 V), involving with oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) processes, respectively. [1][2][3] Despite admitted competitiveness, there still exists serious bottleneck and key scientific issues to be solved. Cumbersome overpotential and thereby induced detrimental parasitic reaction during repeated cycles cast a shadow over the real-life implementation of Li-O 2 batteries. In terms of cathode side, solid discharge species, namely Li 2 O 2 , with inherent poor conductivity and insolubility in electrolyte, are tough to be decomposed. Intrinsically, electrochemical reaction kinetics is undesirably retarded, giving rise to large potential hysteresis between ORR and OER. [4][5][6][7] To circumvent this notorious dilemma, the prevailing strategy lies on the exploitation of efficient catalysts (precious metals, carbonaceous materials, metallic oxides, sulfides, etc.) with synergistically tailored geometric constructions and electronic characteristics to manipulate Li 2 O 2 accommodations with optimized morphology and structure. [8][9][10][11][12] As a future-proof approach, seeking for efficient catalysts is still a rigorous challenge for Li-O 2 chemistry. In response, defect engineering (vacancies, edges, boundaries, dislocations, and doping) shows huge potential in tuning the electronic structure and thus facilitates the electrochemical characteristic of active catalysts. [13][14][15] For instance, J. O-Medina et al. demonstrated that the defective sites such as, heteroatom doping, vacancies, and edges could tailor the initial sp 2 -hybridized networks of nanocarbons, leading to enhancement of electrocatalysis activity. [16] Wang's group also proposed that the introduction of various defects played a crucial role in modifying electron delocalization structure within carbon and metallic compounds for various rechargeable batteries, suggesting its superiority in accelerating charge transfer kinetics and optimizing intermediate adsorption behavior during cycling. [13] Wang et al. reported that superior catalytic activity and long-term stability towards electrocatalytic reactions could be realized by introducing doping, edge, and grain boundary defects. [14] Ameliorating round-trip efficiency and mitigating parasitic reaction play a key role in enhancing the activity and durability of lithium-oxygen batteries. Herein, it is first reported that Ti 3 C 2 MXene quantum dot clusters full of rich crystal defects anchored on N-doped carbon nanosheets (Ti 3 C 2 QDC/N-C) can operate well as bifunctional catalyst for Li-O 2 batteries. The well-defined grain boundary and edge defects make crucial contributions in modulating the local unsaturated coordination state of active titanium atoms and thus the electronic structure of Ti 3 C 2 QDC/N-C, greatly enhancing the catalytic capability. Furthermore, density functional theory calculations disclose that the fruitful cryst...

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“…Zhou, Yu and co-workers introduced a polyacrylonitrile (PAN) nanofibrous membrane coated with 4-cyan-Ph-terminated film composite (CTFPNM) for use in hybrid electrolyte Li-O 2 batteries. [88] Benefiting from the superior segregation effect of CTFPNM, the Li-metal anode was effectively protected, which contributed to a high CE of 99.3-99.5% and extended operation over 250 cycles with a potential gap of only 0.47 V. Amici et al prepared a novel membrane by using an amorphous modified polyetheretherketone (PWC) incorporated with dextrin-based nanosponges. [89] Taking advantage of high complexing ability toward macromolecules and gases, the 3D polymer membrane exhibited low O 2 permeability with high Li + conductivity, thereby allowing improvements in cyclability and reversibility.…”

Section: Separator Functionalization To Alleviate Anode Corrosion By mentioning

confidence: 99%

Porous Materials Applied in Nonaqueous Li–O₂ Batteries: Status and Perspectives

Wang

et al. 2020

Advanced Materials

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Li-O 2) batteries with high theoretical energy densities offer considerable potential for a new generation of energy storage technology. [1] In 1996, the first nonaqueous Li-O 2 battery was introduced with a polymer organic electrolyte and a carbon-cobalt composite cathode by Abraham and Jiang. [2] This was followed by the verification of the rechargeability of Li-O 2 batteries with manganese dioxide-super S cathodes for over 50 cycles by Bruce and co-workers, [3] after which nonaqueous Li-O 2 batteries received substantial research attention worldwide. A typical nonaqueous Li-O 2 battery includes a Li metal anode, an aprotic electrolyte and an O 2 cathode. It operates according to the reaction 2Li + O 2 ↔ Li 2 O 2 (2.96 V vs Li/Li +), in which O 2 is reduced to form Li 2 O 2 on the cathode during discharging and Li 2 O 2 is decomposed to O 2 and Li + through a reversible charging process. In this way, the battery delivers exceptional theoretical energy density of ≈3600 Wh kg −1. [4] This report is centered on nonaqueous Li-O 2 batteries, and the use of the term "Li-O 2 batteries" mentioned below represents "nonaqueous Li-O 2 batteries." To date, enormous progress has been achieved in the understanding and application of high-performance Li-O 2 batteries, however, their low practical discharge capacity, poor rate capability, low round-trip efficiency, and inferior cycling stability have greatly blocked their practical applications. The current major scientific and technical challenges of Li-O 2 batteries can be summarized as follows. 1) The slow kinetics of formation and decomposition of the discharge products lead to poor rate capability and low round-trip efficiency. 2) Cathode corrosion and electrolyte decomposition due to the attack by the discharge intermediates such as superoxide species, giving rise to poor cycling stability. 3) Pore clogging on the cathode arising from the stacking of insulated, insoluble discharge products blocks the mass transfer and oxygen/Li + diffusion, limiting the capacity and degrading the cycling performance. 4) The inevitable side reactions between the highly reactive Li anode and the organic electrolyte, crossover O 2 , CO 2 , etc., and the redox mediators (RMs), give rise to premature battery death. [1a,5] 5) The unavoidable Li dendrites caused by uncontrollable deposition of lithium, as well as the risk of collapse of the lithium anode due to the volume change during iterative plating/stripping processes, increase the probability of safety problems. [6] Consequently, the slow kinetics of Li 2 O 2 Porous materials possessing high surface area, large pore volume, tunable pore structure, superior tailorability, and dimensional effect have been widely applied as components of lithium-oxygen (Li-O 2) batteries. Herein, the theoretical foundation of the porous materials applied in Li-O 2 batteries is provided, based on the present understanding of the battery mechanism and the challenges and advantageous qualities of porous materials. Furthermore, recent progress in porous material...

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Advanced Hybrid Electrolyte Li-O2 Battery Realized by Dual Superlyophobic Membrane

Cited by 61 publications

References 62 publications

A Safe Organic Oxygen Battery Built with Li‐Based Liquid Anode and MOFs Separator

A Safe Organic Oxygen Battery Built with Li‐Based Liquid Anode and MOFs Separator

Bifunctional Catalytic Activity Guided by Rich Crystal Defects in Ti₃C₂ MXene Quantum Dot Clusters for Li–O₂ Batteries

Porous Materials Applied in Nonaqueous Li–O₂ Batteries: Status and Perspectives

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Advanced Hybrid Electrolyte Li-O2 Battery Realized by Dual Superlyophobic Membrane

Cited by 61 publications

References 62 publications

A Safe Organic Oxygen Battery Built with Li‐Based Liquid Anode and MOFs Separator

A Safe Organic Oxygen Battery Built with Li‐Based Liquid Anode and MOFs Separator

Bifunctional Catalytic Activity Guided by Rich Crystal Defects in Ti3C2 MXene Quantum Dot Clusters for Li–O2 Batteries

Porous Materials Applied in Nonaqueous Li–O2 Batteries: Status and Perspectives

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Bifunctional Catalytic Activity Guided by Rich Crystal Defects in Ti₃C₂ MXene Quantum Dot Clusters for Li–O₂ Batteries

Porous Materials Applied in Nonaqueous Li–O₂ Batteries: Status and Perspectives