Heuristic Design of Cathode Hybrid Coating for Power‐Limited Sulfide‐Based All‐Solid‐State Lithium Batteries

Liang, Yuhao; Liu, Hong; Wang, Guoxu; Wang, Chao; Li, Dabing; Ni, Yu; Fan, Li‐Zhen

doi:10.1002/aenm.202201555

Cited by 50 publications

(21 citation statements)

References 84 publications

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“…Liang et al introduced cyclized PAN (cÀ PAN) and nanoscale Li 1.4 Al 0.4 Ti 1.6 (PO 4 ) 3 (LATP) coated on the single-crystalline LiNi 0.6 Co 0.2 Mn 0.2 O 2 (SNCM) cathode particles in Figure 3(c). [57] Homogeneous coating layer, especially PAN with delocalized π bond, extended electronic contact with SNCM particles, delivering a good electrochemical performance of capacity retention (72.7 % over 500 cycles, at 0.5 C). Meanwhile, Jiang et al used theoretical models and simulation to reveal that PAN as a coating layer is beneficial to accelerate the diffusion of Li + to cathode particles.…”

Section: Poly(acrylonitrile)-based Polymer Electrolytesmentioning

confidence: 99%

A Review of Polymer‐based Solid‐State Electrolytes for Lithium‐Metal Batteries: Structure, Kinetic, Interface Stability, and Application

Zhao

Wang

Liu

et al. 2023

Batteries & Supercaps

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Solid‐state polymer electrolytes (SPEs) for all‐solid‐state batteries (ASSBs) have received considerable attention owing to excellent processability, good flexibility, high safety levels, and superior thermal stability. However, the practical application of SPEs is currently restricted by their low ionic conductivity, narrow electrochemical oxidation window, and poor long‐term stability of lithium (Li) metal. These challenges are mainly related to the polymer molecular structures, the dynamic of the polymer electrolyte, and the polymer compound stability at the electrode‐electrolyte interface. In this review, we provide recent strategies and discuss strategies of interest for applications to high‐energy‐density ASSB, particularly the molecular design, ion‐transport dynamic mechanisms of solid polymer electrolytes, and organic‐inorganic composite. Based on recent work, perspectives on future research directions are discussed for developing solid polymer electrolytes.

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Section: Poly(acrylonitrile)-based Polymer Electrolytesmentioning

confidence: 99%

A Review of Polymer‐based Solid‐State Electrolytes for Lithium‐Metal Batteries: Structure, Kinetic, Interface Stability, and Application

Zhao

Wang

Liu

et al. 2023

Batteries & Supercaps

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“…Therefore, Fan et al proposed a new hybrid coating strategy for cathode materials of "polymer-patched inorganic" (Figure 11b). [112] The LATP nanoparticles were first point-coated with cathode particles. The defective portion of the LATP coating was subsequently repaired with polyacrylonitrile (cPAN).…”

Section: Coating Protectionmentioning

confidence: 99%

Section: Coating Protectionmentioning

confidence: 99%

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Practical Application of All‐Solid‐State Lithium Batteries Based on High‐Voltage Cathodes: Challenges and Progress

Chen

Luo

et al. 2023

Advanced Energy Materials

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All‐solid‐state lithium batteries (ASSLBs) have become a recent research hotspot because of their excellent safety performance. In order to better reflect their superiority, high‐voltage cathodes should be applied to enhance the energy density of solid batteries to compete with commercial liquid batteries. However, the introduction of high‐voltage cathodes suffers from many problems, such as low electrochemical stability, inferior interface chemical stability between cathode and electrolyte, poor mechanical contact, and gas evolution. These drawbacks significantly influence the battery performance, even causing battery failure and hindering the commercialization of solid‐state batteries. This paper first reviews the above failure mechanisms of high‐voltage cathode‐based ASSLBs from different perspectives. Then, recent advances in solid‐state electrolytes for ASSLBs are summarized, mainly including polymer solid electrolytes, sulfide solid electrolytes, and oxide solid electrolytes. In addition, the influence of the cathode materials is also highly critical, and strategies to improve electrochemical performance are put forward, which can be divided into coating protection, synthesis modification, and structure improvement. Finally, guidelines for the future development of solid‐state batteries are also discussed.

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“…In addition to the research approach above, it is necessary to explore the new composite coating layer modified separator to control the uniform Li + deposition/stripping and prevent the lithium dendrites. − It is well-known that inorganic solid-state electrolytes (such as sulfides and oxides) have become the research hotspots in all-solid-state batteries due to their fast ion conductors, high Li + conductivity, wide electrochemical window stability and high safety. − Meantime, polymer electrolytes are promising materials to effectively overcome leakage, flammability, and lithium dendrites. − For example, the double-network-supported poly(ionic liquid)-based ionogel electrolyte (DN-Ionogel) prepared by a simple method has been reported to deliver excellent ionic conductivity at 25 °C, high Li-ions transference number, wide electrochemical window, superior cycle performance and good rate capability in Li/DN-Ionogel/LiFePO 4 cell . Moreover, in order to enhance the electrochemical performance of poly(ethylene oxide)- (PEO-) based solid electrolyte, Fu et al developed an ultrathin dual-salt PEO-based polymer electrolyte (DPPE) via a cross-linked network.…”

Section: Introductionmentioning

confidence: 99%

Modified Separator with a Composite Layer of LLZTO-PEO/PVDF-HFP/LiTFSI for Lithium-Ion Batteries

Gan,

Sun,

Xia

et al. 2023

ACS Appl. Energy Mater.

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Functionalized separator is more competitive than commercial polyolefin separator for rechargeable lithium-ion batteries. In this work, we design the separator modified by a c o m p o s i t e c o a t i n g l a y e r , w h i c h i s c o m p o s e d o f Li 6.75 La 3 Zr 1.75 Ta 0.25 O 12 (LLZTO), poly(ethylene oxide) (PEO), poly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) and lithium bis(triuoromethanesulfonyl) imide (LiTFSI) (LLZTO-PEO/PVDF-HFP/LiTFSI, LLZTO-PPL). The LLZTO-PPL composite coating layer gives an impressive effect on dendrite inhibition of lithium metal. In comparison with commercial polyolefin separator, smaller overpotential value and better Coulombic efficiency are observed for the Li/LLZTO-PPL/Li symmetric cells and the Li/LLZTO-PPL/Cu asymmetric cells at various current densities of 0.2, 0.5, and 1 mA cm −2 . Moreover, the LLZTO-PPL composite coating layer modified separator exhibits better high-rate capability and cycle performance for these cells assembled with different kinds of cathode materials (LiFePO 4 , LiCoO 2 , and LiNi 0.8 Co 0.1 Mn 0.1 O 2 ) and their counterpart of a lithium metal anode. The functionalized composite coating layer modified separator may be a more attractive candidate material for commercial lithium-ion batteries.

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Heuristic Design of Cathode Hybrid Coating for Power‐Limited Sulfide‐Based All‐Solid‐State Lithium Batteries

Cited by 50 publications

References 84 publications

A Review of Polymer‐based Solid‐State Electrolytes for Lithium‐Metal Batteries: Structure, Kinetic, Interface Stability, and Application

A Review of Polymer‐based Solid‐State Electrolytes for Lithium‐Metal Batteries: Structure, Kinetic, Interface Stability, and Application

Practical Application of All‐Solid‐State Lithium Batteries Based on High‐Voltage Cathodes: Challenges and Progress

Modified Separator with a Composite Layer of LLZTO-PEO/PVDF-HFP/LiTFSI for Lithium-Ion Batteries

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