An artificial solid interphase with polymers of intrinsic microporosity for highly stable Li metal anodes

Moon, Gi Hyeon; Kim, Hyun Jong; Chae, Il Seok; Park, Seul Chan; Kim, Byung Su; Jang, Jaeyoung; Kim, Hansu; Kang, Yong Soo

doi:10.1039/c9cc01329f

Cited by 32 publications

(21 citation statements)

References 39 publications

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“…Both mechanical properties made the PIM an ideal interfacial layer to enhance the electrochemical performance of the anode, resulting in a longer and more stable cycle lifetime of the Li metal anode. A full cell utilizing a LiFePO 4 cathode and the PIM‐coated Li metal anode showed a high capacity of 143 mA h g −1 and delivered a stable performance over 100 cycles at the current density of 0.5 C. A similar result with a PIM coating was also reported by Jang and co‐workers …”

Section: Mechanically Suppressing LI Dendrite Growthsupporting

confidence: 82%

“…According to Monroe and Newman's prediction, the Young's modulus of the designed hard film should be at least 6 GPa to suppress the growth of Li dendrites . Therefore, an effective hard coating should possess a high modulus, also combined with excellent electrochemical stability and porous structure for Li ions migration . Many high modulus polymers or rigid coating materials have been utilized to mechanically suppress the dendrites after formation.…”

Section: Mechanically Suppressing LI Dendrite Growthmentioning

confidence: 99%

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Advances in Artificial Layers for Stable Lithium Metal Anodes

Zhao

et al. 2020

Chemistry A European J

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Lithium (Li) metal is considered as the most promising anode material for rechargeable high‐energy batteries. Nevertheless, the practical implement of Li anodes is significantly hindered by the growth of Li dendrites, which can cause severe safety issues. To inhibit the formation of Li dendrites, coating an artificial layer on the Li metal anode has been shown to be a facile and effective approach. This review mainly focuses on recent advances in artificial layers for stable Li metal anodes. It summarizes the progress in this area and discusses the different types of artificial layers according to their mechanisms for Li dendrite inhibition, including regulation of uniform deposition of Li metal and suppression of Li dendrite growth. By doing this, it is hoped that this contribution will provide instructional guidance for the future design of new artificial layers.

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Section: Mechanically Suppressing LI Dendrite Growthsupporting

confidence: 82%

Section: Mechanically Suppressing LI Dendrite Growthmentioning

confidence: 99%

Advances in Artificial Layers for Stable Lithium Metal Anodes

Zhao

et al. 2020

Chemistry A European J

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Section: Strategies Of Tailoring Solid Electrolyte Interphase With Dementioning

confidence: 99%

“…In recent years, a new class of polymers, polymer of intrinsic porosity (PIM), is drawing increasing attention due to its selective permeability to Li + or Li + sheath in electrolyte. [ 150 ] Unlike the conventional polymer backbone that is comprised of rotational σ bond, the backbone of PIM is exclusively comprised of non‐rotational bonds. In addition, the repetition unit of the polymer is usually folded at a certain dihedral angle (θ≠180°).…”

Section: Strategies Of Tailoring Solid Electrolyte Interphase With Dementioning

confidence: 99%

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Recent Progress in Understanding Solid Electrolyte Interphase on Lithium Metal Anodes

Jia

Wang

et al. 2020

Advanced Energy Materials

348

339

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Lithium metal batteries (LMBs) are one of the most promising candidates for next‐generation high‐energy‐density rechargeable batteries. Solid electrolyte interphase (SEI) on Li metal anodes plays a significant role in influencing the Li deposition morphology and the cycle life of LMBs. However, a thorough understanding on the mechanisms of SEI formation and evolution is still inadequate. In this review, the progress in understanding structures, properties, and influencing factors of SEI, as well as efficient strategies of tailoring SEI are focused upon. First, the compositions, models, and recent progress in characterizing atomic structures of SEI are summarized. Second, the properties of SEI, including electronic conduction, ionic conduction, stability, and mechanical properties are elucidated. Structures and properties of SEI are greatly affected by multiple factors, thus interactions between these factors and SEI are systematically discussed. Correlations of SEI with Li deposition morphology, rate capability, and cycle life are further summarized. Moreover, efficient strategies of tailoring SEI with desired properties, including in situ SEI and ex situ SEI, are also reviewed. Finally, future directions, including in‐operando techniques, multi‐modality approaches for characterization of SEI, and artificial intelligence assisted understanding of correlations between electrolyte components and SEI properties are proposed.

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