Li7La2.75Ca0.25Zr1.75Nb0.25O12@LiClO4 composite film derived solid electrolyte interphase for anode-free lithium metal battery

Abrha, Ljalem Hadush; Zegeye, Tilahun Awoke; Hagos, Tesfaye Teka; Sutiono, Hogiartha; Berhe, Gebregziabher Brhane; Huang, Chen‐Jui; Jiang, Shi‐Kai; Su, Wei‐Nien; Yang, Yichuan; Hwang, Bing‐Joe

doi:10.1016/j.electacta.2019.134825

Cited by 59 publications

(36 citation statements)

References 65 publications

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“…3g ) can be calculated by subtracting the value in the first cycle with that of the second cycle from the Li/Cu cell protocol. To conclude, the Li/Cu cell is a useful protocol to provide reliable information for the study of electrolyte 27 , 28 , 31 , and surface engineering approaches 29 , 36 , 37 for mitigating the irr-CE ascribed to dead Li and SEI formation.…”

Section: Resultsmentioning

confidence: 99%

Decoupling the origins of irreversible coulombic efficiency in anode-free lithium metal batteries

et al. 2021

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Anode-free lithium metal batteries are the most promising candidate to outperform lithium metal batteries due to higher energy density and reduced safety hazards with the absence of metallic lithium anode during initial cell fabrication. In general, researchers report capacity retention, reversible capacity, or rate capability of the cells to study the electrochemical performance of anode-free lithium metal batteries. However, evaluating the behavior of batteries from limited aspects may easily overlook other information hidden deep inside the meretricious results or even lead to misguided data interpretation. In this work, we present an integrated protocol combining different types of cell configuration to determine various sources of irreversible coulombic efficiency in anode-free lithium metal cells. The decrypted information from the protocol provides an insightful understanding of the behaviors of LMBs and AFLMBs, which promotes their development for practical applications.

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Section: Resultsmentioning

confidence: 99%

Decoupling the origins of irreversible coulombic efficiency in anode-free lithium metal batteries

et al. 2021

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“…3g. The Li//Cu cell is a useful protocol to provide reliable information for the study of electrolyte 23,24,27 , and surface engineering approaches 25,31,32 for mitigating the irreversible Coulombic efficiency ascribed to dead Li formation and reductive electrolyte decomposition.…”

Section: Resultsmentioning

confidence: 99%

Unfolding the Hidden Message of Anode-Free Lithium Metal Battery

Huang¹,

Thirumalraj²,

Tao³

et al. 2020

Preprint

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Lithium metal batteries (LMBs) have been revisited and gained great attention due to significantly mitigated formation of Li dendrite in the past decade. Recently, anode-free lithium metal batteries (AFLMBs) are proposed and have been studied intensively to potentially outperform LMBs due to higher energy density and reduced safety hazards since the absence of Li metal during the fabrication process of the cell. In general, researchers compare capacity retention, reversible capacity, or rate capability of the cells to study the electrochemical performance of batteries. However, evaluating the behavior of batteries from limited aspects would easily overlook other information hidden deep inside the meretricious results or even lead to misguided data interpretation. In this work, an integrated protocol combining different types of cell configuration is proposed and validated for the first time to unravel the concealed messages in LMBs and AFLMBs. Irreversible coulombic efficiency (irr-CE) from various contributions including reductive electrolyte decomposition, dead Li formation, 1st intrinsic irreversible capacity of a cathode, and the subsequent irreversible reactions at cathode containing oxidative electrolyte decomposition and cathode degradation upon cycling are successfully determined separately by the integrated protocol for the first time. The decrypted information obtained from the proposed protocol provides an insightful understanding of behaviors of LMBs and AFLMBs, which promotes their development for practical applications.

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“…Hwang and co‐workers have reported a series of different current‐collector coatings films and artificial SEIs including polyethylene oxide (PEO), [ 53 ] multilayer graphene (MLG), [ 54 ] garnet (Li 7 La 2.75 Ca 0.25 Zr 1.75 Nb 0.25 O 12 ), [ 55 ] and graphene oxide. [ 56 ] The use of PEO and multilayer graphene led to moderate improvements in capacity retention over the control case with LFP cathodes and an unoptimized ether‐based electrolyte.…”

Section: Strategies For Improving Performance Of Anode‐free Full Cellsmentioning

confidence: 99%

Anode‐Free Full Cells: A Pathway to High‐Energy Density Lithium‐Metal Batteries

Nanda

Gupta

Manthiram

2020

Advanced Energy Materials

285

294

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The development of high‐energy density batteries is critical to the decarbonization of the transportation and power generation sectors. For any given lithium‐containing cathode system, the anode‐free full cell configuration, which eliminates excess lithium and pairs the fully lithiated cathode with a bare current collector, can deliver the maximum possible energy density. The absence of free lithium metal during cell assembly confers significant practical advantages as well. It is also the ideal framework for developing a thorough understanding of lithium deposition in conjunction with various cathode systems. However, the poor efficiencies of lithium plating and stripping lead to rapid lithium inventory loss and poor cycle life. In the last few years, multiple studies have demonstrated the application of advanced electrolytes, modified current collectors, and optimized formation and cycling parameters to stabilize lithium deposition and improve cycle life (80% capacity retention) to 100 cycles and beyond. This review provides an overview of the various strategies toward sustaining lithium inventory in anode‐free full cells and summarizes the work undertaken in this nascent field. It is expected that further improvement upon these strategies and a combinatorial approach can enable cycle lives far in excess of what has been achieved so far.

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Li7La2.75Ca0.25Zr1.75Nb0.25O12@LiClO4 composite film derived solid electrolyte interphase for anode-free lithium metal battery

Cited by 59 publications

References 65 publications

Decoupling the origins of irreversible coulombic efficiency in anode-free lithium metal batteries

Decoupling the origins of irreversible coulombic efficiency in anode-free lithium metal batteries

Unfolding the Hidden Message of Anode-Free Lithium Metal Battery

Anode‐Free Full Cells: A Pathway to High‐Energy Density Lithium‐Metal Batteries

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