A ZnO decorated 3D copper foam as a lithiophilic host to construct composite lithium metal anodes for Li–O2 batteries

Liao, Jialin; Zhang, Shuai; Bai, Tiansheng; Ji, Fengjun; Li, Deping; Cheng, Jun; Zhang, Hongqiang; Lu, Jingyu; Gao, Quan; Ci, Lijie

doi:10.1007/s12598-023-02281-5

Cited by 15 publications

(1 citation statement)

References 73 publications

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“…However, heterogeneous lithium nucleation, the slow diffusion of lithium, formation of creep, and void arising from inadequate pressure can result in lithium dendrite growth and cell failure . The use of Li-metal alloys such as Li–Ag, Li–Zn, and Li–Al is a promising way to promote the uniform nucleation of lithium during electrodeposition by minimizing nucleation overpotential. − Unlike Li–Zn and Li–Al alloys, the Li–Ag alloy forms a single solid–solution phase, characterized by a certain degree of stoichiometric tolerance and minimal change in structure. , They can also mitigate mechanical deformation at the interface, thereby preventing the formation of creep and void and facilitating intimate electrode–electrolyte interfacial contacts. Consequently, the reversibility and uniformity of lithium stripping/plating are more enhanced, and lithium dendrite growth is suppressed in the Li–Ag anode .…”

Section: Introductionmentioning

confidence: 99%

Rationally Designed Li–Ag Alloy with In-Situ-Formed Solid Electrolyte Interphase for All-Solid-State Lithium Batteries

Park,

Oh,

Sim

et al. 2024

ACS Appl. Mater. Interfaces

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All-solid-state lithium batteries (ASSLBs) with sulfide-based solid electrolytes have attracted significant attention as promising energy storage devices, owing to their high energy density and enhanced safety. However, the combination of a lithium metal anode and a sulfide solid electrolyte results in performance degradation, owing to lithium dendrite growth and the side reactions of lithium metal with the solid electrolyte. To address these issues, a Ag-based Li alloy with a favorable solid electrolyte interphase (SEI) was prepared using electrodeposition and applied to the ASSLB as an anode. The electrochemically formed SEI layer on the Li−Ag alloy primarily comprised LiF and Li 2 O with high mechanical strength and Li 3 N with high ionic conductivity, which suppressed the formation of lithium dendrites and short-circuiting of the cell. The symmetric cell with the Li− Ag alloy achieved a critical current density of 1.6 mA cm −2 and maintained stable cycling for over 2000 h at a current density of 0.6 mA cm −2 . Consequently, the all-solid-state lithium cell assembled with the Li−Ag alloy anode with SEI, Li 6 PS 5 Cl solid electrolyte, and LiNi 0.78 Co 0.10 Mn 0.12 O 2 cathode delivered a high discharge capacity of 185 mAh g −1 and exhibited good cycling performance in terms of cycling stability and rate capability at 25 °C.

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Section: Introductionmentioning

confidence: 99%

Rationally Designed Li–Ag Alloy with In-Situ-Formed Solid Electrolyte Interphase for All-Solid-State Lithium Batteries

Park,

Oh,

Sim

et al. 2024

ACS Appl. Mater. Interfaces

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Advancements in Current Collectors for Composite Lithium Metal Anodes

Chen,

Pan,

Wang

et al. 2024

Adv Funct Materials

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Lithium (Li) metal batteries have attracted great attention as next‐generation high‐energy‐density storage systems due to the high theoretical energy density and low redox potential of Li metal. However, the safety concerns and poor cycle life are hindering the commercialization of Li metal batteries. Combination of Li metal and current collectors to regulate Li plating/stripping behaviors is an effective strategy to address these issues. In this review, the recent advances in the current collectors for composite Li metal anodes are summarized, including construction interfacial protective layers on current collectors, fabrication and utilization of 3D current collectors, and improving the surface lithiophilicity for current collectors. Finally, perspectives of the current limitations and the future research directions are also presented.

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Lithium Demand and Cyclability Trade‐Off in Conductive Nanostructure Scaffolds in Terms of Different Tortuosity Parameters

Ali Hoseini,

Mohajerzadeh,

Sanaee

2024

ChemElectroChem

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Through alteration of the polarity of DC plasma during the growth of carbon nanotubes in a PECVD reactor, significantly different morphologies of such species have been achieved. By using this approach, for the first time, both Half‐aligned and Entangled structures were synthesized, along with Full‐aligned carbon nanotubes, introducing three binder‐free electrodes with various levels of tortuosity. The crucial parameter and influential effect of tortuosity in these three‐dimensional nanostructure scaffolds for application in lithium‐ion batteries were investigated. Previous research findings suggested that increasing the tortuosity of the conductive scaffolds leads to preferential accumulation of lithium at the top surface and causes the loss of capacity in subsequent charge‐discharge cycles. Our finding reveals that there exists a trade‐off between lithium‐demand, capacity, and preferential accumulation of lithium at the top surface. Among the presented scaffolds, the Half‐aligned MWCNTs was able to maintain a high capacity of 876.9 mAh/g over more than 300 cycles, and demonstrate capacity improvement during this period and excellent rate capability, even at a rate of 5 C. This capacity is almost three times that can be achieved with graphite, showcasing promising and outstanding results for carbon nanotubes.

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A ZnO decorated 3D copper foam as a lithiophilic host to construct composite lithium metal anodes for Li–O2 batteries

Cited by 15 publications

References 73 publications

Rationally Designed Li–Ag Alloy with In-Situ-Formed Solid Electrolyte Interphase for All-Solid-State Lithium Batteries

Rationally Designed Li–Ag Alloy with In-Situ-Formed Solid Electrolyte Interphase for All-Solid-State Lithium Batteries

Advancements in Current Collectors for Composite Lithium Metal Anodes

Lithium Demand and Cyclability Trade‐Off in Conductive Nanostructure Scaffolds in Terms of Different Tortuosity Parameters

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