Separator Wettability Enhanced by Electrolyte Additive to Boost the Electrochemical Performance of Lithium Metal Batteries

Wang, Ying

doi:10.1007/s40820-021-00731-2

Cited by 12 publications

(9 citation statements)

References 14 publications

(14 reference statements)

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Section: Requirements For Lib Separatorsmentioning

confidence: 99%

“…44,45 The quick absorption of electrolyte is crucial for the preparation and operation of LIBs. 46,47 Wettability can be judged by electrolyte uptake, liquid absorption height or contact angle. 48,49 Electrolyte uptake is calculated by eqn (3).Electrolyte uptake = ( m − m 0 )/ m 0 × 100%,where m 0 and m are the mass of the separators before and after soaking in electrolyte, respectively.…”

Section: Key Factors Of Safe Separatormentioning

confidence: 99%

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Towards separator safety of lithium-ion batteries: a review

Tong,

2024

Mater. Chem. Front.

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Section: Requirements For Lib Separatorsmentioning

confidence: 99%

Section: Key Factors Of Safe Separatormentioning

confidence: 99%

Towards separator safety of lithium-ion batteries: a review

Tong,

2024

Mater. Chem. Front.

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“…In polymer electrolytes, heterogeneous interface, limited ion transport and low mechanical strength are the primary reasons driving dendrite growth [ 52 ]. Firstly, solid electrolyte interface (SEI) realizes the dynamic passivation of the electrode, which expands the electrochemical window of LMBs to a certain extent [ 53 ]. However, the heterogeneous SEI induces uneven Li + flux on the anode, triggering the propagation of mossy and whiskery dendrites (Fig.…”

Section: Key Issues In the Development Of Piesmentioning

confidence: 99%

Tailoring Practically Accessible Polymer/Inorganic Composite Electrolytes for All-Solid-State Lithium Metal Batteries: A Review

Liang

Wang

et al. 2023

Nano-Micro Lett.

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Highlights The current issues and recent advances in polymer/inorganic composite electrolytes are reviewed. The molecular interaction between different components in the composite environment is highlighted for designing high-performance polymer/inorganic composite electrolytes. Inorganic filler properties that affect polymer/inorganic composite electrolyte performance are pointed out. Future research directions for polymer/inorganic composite electrolytes compatible with high-voltage lithium metal batteries are outlined. Abstract Solid-state electrolytes (SSEs) are widely considered the essential components for upcoming rechargeable lithium-ion batteries owing to the potential for great safety and energy density. Among them, polymer solid-state electrolytes (PSEs) are competitive candidates for replacing commercial liquid electrolytes due to their flexibility, shape versatility and easy machinability. Despite the rapid development of PSEs, their practical application still faces obstacles including poor ionic conductivity, narrow electrochemical stable window and inferior mechanical strength. Polymer/inorganic composite electrolytes (PIEs) formed by adding ceramic fillers in PSEs merge the benefits of PSEs and inorganic solid-state electrolytes (ISEs), exhibiting appreciable comprehensive properties due to the abundant interfaces with unique characteristics. Some PIEs are highly compatible with high-voltage cathode and lithium metal anode, which offer desirable access to obtaining lithium metal batteries with high energy density. This review elucidates the current issues and recent advances in PIEs. The performance of PIEs was remarkably influenced by the characteristics of the fillers including type, content, morphology, arrangement and surface groups. We focus on the molecular interaction between different components in the composite environment for designing high-performance PIEs. Finally, the obstacles and opportunities for creating high-performance PIEs are outlined. This review aims to provide some theoretical guidance and direction for the development of PIEs.

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“…Generally, it is believed that the formation of the dendrite results from uneven nucleation and subsequent nonuniform deposition. [14][15][16] Numerous efforts based on electrolyte optimization, [17,18] artificial solid-state interface (SEI), [19][20][21] and regulation of Li deposition [22,23] have been demonstrated to suppress or eliminate dendrite growth.…”

Section: Introductionmentioning

confidence: 99%

Regulating lithium affinity of hosts for reversible lithium metal batteries

Liu,

Ji,

et al. 2024

Interdisciplinary Materials

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Lithium (Li) metal batteries are regarded as the “holy grail” of next‐generation rechargeable batteries, but the poor redox reversibility of Li anode hinders its practical applications. While extensive studies have been carried out to design lithiophilic substrates for facile Li plating, their effects on Li stripping are often neglected. In this study, by homogeneously loading indium (In) single atoms on N‐doped graphene via In‐N bonds, the affinity between Li and hosting substrates is regulated. In situ observation of Li deposition/stripping processes shows that compared with the N‐doped graphene substrate, the introduction of In effectively promotes its reversibility of Li redox, achieving a dendrite‐free Li anode with much‐improved coulombic efficiency. Interestingly, theoretical calculations demonstrate that In atoms have actually made the substrate less lithophilic via passivating the N sites to avoid the formation of irreversible Li–N bonding. Therefore, a “volcano curve” for reversible Li redox processes is proposed: the affinity of substrates toward Li should be optimized to a moderate value, where the balance for both Li plating and Li stripping processes could be reached. By demonstrating a crucial design principle for Li metal hosting substrates, our finding could trigger the rapid development of related research.

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Separator Wettability Enhanced by Electrolyte Additive to Boost the Electrochemical Performance of Lithium Metal Batteries

Cited by 12 publications

References 14 publications

Towards separator safety of lithium-ion batteries: a review

Towards separator safety of lithium-ion batteries: a review

Tailoring Practically Accessible Polymer/Inorganic Composite Electrolytes for All-Solid-State Lithium Metal Batteries: A Review

Regulating lithium affinity of hosts for reversible lithium metal batteries

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