Constructing 3D Li+-percolated transport network in composite polymer electrolytes for rechargeable quasi-solid-state lithium batteries

Jin, Yingmin; Zong, Xin; Zhang, Xuebai; Jia, Zhenggang; Xie, Haijiao; Xiong, Yueping

doi:10.1016/j.ensm.2022.04.035

Cited by 64 publications

(58 citation statements)

References 54 publications

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“…Here, the surface modification of LATP with APTES and the associated change in ζ potential improves the interface via electrostatic attraction with the polymer PSA, yielding improved ionic conductivity. Note that similar effects were very recently reported for three-dimensional (3D) composite electrolytes comprised of APTES-LATP/PVdF, incorporated in PVC and LiTFSI …”

Section: Results and Discussionsupporting

confidence: 84%

“…Note that similar effects were very recently reported for three-dimensional (3D) composite electrolytes comprised of APTES-LATP/PVdF, incorporated in PVC and LiTFSI. 47 …”

Section: Results and Discussionmentioning

confidence: 99%

“…Note that similar effects were very recently reported for three-dimensional (3D) composite electrolytes comprised of APTES-LATP/PVdF, incorporated in PVC and LiTFSI. 47 In addition, the limiting current density for all compositions was measured by linear sweep voltammetry, as shown in Figure 4a. Irrespective of actual LATP particle fractions, a limiting current density higher than 1 mA cm −2 was achieved at 40 °C, which is comparable to other "quasi"-solid electrolytes, 15,48 corroborating that the Li reservoir of the LATP particles might be disconnected from the polymer domains.…”

Section: Properties Of the Polymer/oxide Membranesmentioning

confidence: 99%

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Ceramic-in-Polymer Hybrid Electrolytes with Enhanced Electrochemical Performance

Overhoff

Ali

Brinkmann

et al. 2022

ACS Appl. Mater. Interfaces

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Polymer electrolytes are attractive candidates to boost the application of rechargeable lithium metal batteries. Single-ion conducting polymers may reduce polarization and lithium dendrite growth, though these materials could be mechanically overly rigid, thus requiring ion mobilizers such as organic solvents to foster transport of Li ions. An inhomogeneous mobilizer distribution and occurrence of preferential Li transport pathways eventually yield favored spots for Li plating, thereby imposing additional mechanical stress and even premature cell short circuits. In this work, we explored ceramic-in-polymer hybrid electrolytes consisting of polymer blends of single-ion conducting polymer and PVdF-HFP, including EC/PC as swelling agents and silane-functionalized LATP particles. The hybrid electrolyte features an oxide-rich layer that notably stabilizes the interphase toward Li metal, enabling single-side lithium deposition for over 700 h at a current density of 0.1 mA cm–2. The incorporated oxide particles significantly reduce the natural solvent uptake from 140 to 38 wt % despite maintaining reasonably high ionic conductivities. Its electrochemical performance was evaluated in LiNi0.6Co0.2Mn0.2O2 (NMC622)||Li metal cells, exhibiting impressive capacity retention over 300 cycles. Notably, very thin LiNbO3 coating of the cathode material further boosts the cycling stability, resulting in an overall capacity retention of 78% over more than 600 cycles, clearly highlighting the potential of hybrid electrolyte concepts.

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Section: Results and Discussionsupporting

confidence: 84%

“…Note that similar effects were very recently reported for three-dimensional (3D) composite electrolytes comprised of APTES-LATP/PVdF, incorporated in PVC and LiTFSI. 47 …”

Section: Results and Discussionmentioning

confidence: 99%

Section: Properties Of the Polymer/oxide Membranesmentioning

confidence: 99%

See 1 more Smart Citation

Ceramic-in-Polymer Hybrid Electrolytes with Enhanced Electrochemical Performance

Overhoff

Ali

Brinkmann

et al. 2022

ACS Appl. Mater. Interfaces

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Section: Problems and Improvement Strategiesmentioning

confidence: 99%

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confidence: 99%

Recent Advances in Conduction Mechanisms, Synthesis Methods, and Improvement Strategies for Li₁₊_xAl_xTi₂₋_x(PO₄)₃ Solid Electrolyte for All‐Solid‐State Lithium Batteries

Zhou

et al. 2022

Advanced Energy Materials

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With the increasing use of Li batteries for storage, their safety issues and energy densities are attracting considerable attention. Recently, replacing liquid organic electrolytes with solid‐state electrolytes (SSE) has been hailed as the key to developing safe and high‐energy‐density Li batteries. In particular, Li1+xAlxTi2−x(PO4)3 (LATP) has been identified as a very attractive SSE for Li batteries due to its excellent electrochemical stability, low production costs, and good chemical compatibility. However, interfacial reactions with electrodes and poor thermal stability at high temperatures severely restrict the practical use of LATP in solid‐state batteries (SSB). Herein, a systematic review of recent advances in LATP for SSBs is provided. This review starts with a brief introduction to the development history of LATP and then summarizes its structure, ion transport mechanism, and synthesis methods. Challenges (e.g., intrinsic brittleness, interfacial resistance, and compatibility) and corresponding solutions (ionic substitution, additives, protective layers, composite electrolytes, etc.) that are critical for practical applications are then discussed. Last, an outlook on the future research direction of LATP‐based SSB is provided.

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Coupling Anion‐Capturer with Polymer Chains in Fireproof Gel Polymer Electrolyte Enables Dendrite‐Free Sodium Metal Batteries

Yang

Feng

Ren

et al. 2023

Adv Funct Materials

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Sodium metal batteries (SMBs) using gel polymer electrolytes (GPEs) with high theoretical capacity and low production cost are regarded as a promising candidate for high energy‐density batteries. However, the inherent flammability of GPEs and uncontrolled Na dendrite caused by inferior mechanical properties and interfacial stability hinder their practical applications. Herein, an anion‐trapping fireproof composite gel electrolyte (AT‐FCGE) is designed through a chemical grafting–coupling strategy, where functionalized boron nitride nanosheets (M‐BNNs) used as both nanosized crosslinker and anion capturer are coupled with poly(ethylene glycol)diacrylate in poly(vinylidene fluoride‐co‐hexafluoropropylene) matrix, to expedite Na+ transport and suppress dendrite growth. Experimental and calculation studies suggest that the anion‐trapping effect of M‐BNNs with abundant Lewis‐acid sites can promote the dissociation of salts, thus remarkably improving the ionic conductivity and Na+ transference number. Meanwhile, the formation of highly crosslinked semi‐interpenetrating network can effectively in situ encapsulate non‐flammable phosphate without sacrificing the mechanical properties. Consequently, the resulting AT‐FCGE shows significantly enhanced Na+ conductivity, mechanical properties, and excellent interfacial stability. The AT‐FCGE enables a long‐cycle stability dendrite‐free Na/Na symmetric cell, and prominent electrochemical performance is demonstrated in solid‐state SMBs. The approach provides a broader promise for the great potential of fire‐retardant gel electrolytes in high‐performance SMBs and the beyond.

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Constructing 3D Li+-percolated transport network in composite polymer electrolytes for rechargeable quasi-solid-state lithium batteries

Cited by 64 publications

References 54 publications

Ceramic-in-Polymer Hybrid Electrolytes with Enhanced Electrochemical Performance

Ceramic-in-Polymer Hybrid Electrolytes with Enhanced Electrochemical Performance

Recent Advances in Conduction Mechanisms, Synthesis Methods, and Improvement Strategies for Li₁₊_xAl_xTi₂₋_x(PO₄)₃ Solid Electrolyte for All‐Solid‐State Lithium Batteries

Coupling Anion‐Capturer with Polymer Chains in Fireproof Gel Polymer Electrolyte Enables Dendrite‐Free Sodium Metal Batteries

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Constructing 3D Li+-percolated transport network in composite polymer electrolytes for rechargeable quasi-solid-state lithium batteries

Cited by 64 publications

References 54 publications

Ceramic-in-Polymer Hybrid Electrolytes with Enhanced Electrochemical Performance

Ceramic-in-Polymer Hybrid Electrolytes with Enhanced Electrochemical Performance

Recent Advances in Conduction Mechanisms, Synthesis Methods, and Improvement Strategies for Li1+xAlxTi2−x(PO4)3 Solid Electrolyte for All‐Solid‐State Lithium Batteries

Coupling Anion‐Capturer with Polymer Chains in Fireproof Gel Polymer Electrolyte Enables Dendrite‐Free Sodium Metal Batteries

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Product

Resources

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Recent Advances in Conduction Mechanisms, Synthesis Methods, and Improvement Strategies for Li₁₊_xAl_xTi₂₋_x(PO₄)₃ Solid Electrolyte for All‐Solid‐State Lithium Batteries