Fabrication and electrochemical properties of LATP/PVDF composite electrolytes for rechargeable lithium-ion battery

Shi, Xue-Rong; Ma, Nengyan; Wu, Yixue; Lu, Youhua; Xiao, Qizhen; Li, Zhaohui; Lei, Gangtie

doi:10.1016/j.ssi.2018.08.010

Cited by 87 publications

(58 citation statements)

References 30 publications

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“…[87] The amount of AlPO 4 phase varies, depending upon the synthetic approaches and process parameters. [87] The amount of AlPO 4 phase varies, depending upon the synthetic approaches and process parameters.…”

Section: Secondary Phasesmentioning

confidence: 99%

“…Liu et al employed LATP@PEGDA@PDMS (x = 0.3 in LATP) assembled into 3D connected networks by applying an externala lternating current (AC) electric field. [87] They tested the Figure 9. Lei et al synthesized LATP (x = 0.3) from as olutionm ethod and then prepared composite electrolyte materials (CEM) with LATP and poly(vinylidene fluoride) (PVDF) in differentr atios.…”

Section: Composite Solid Electrolytementioning

confidence: 99%

“…[104] They found that the roomtemperature ionic conductivity of these 3D channels was three times highert han that of the randomo ne. Photographs showing the flexibility of the LATP composite electrolyte film:a)LATP@PEGDA@PDMS (PEGDA = poly(ethyleneglycol) diacrylate, PDMS = poly(dimethylsiloxane)); [104] b) LATP@PVDF composite electrolyte, [87] c) LATP@PEO,a nd d) Ice-templating process for the preparationo ft he LATP@PEO composite electrolyte. [87] They tested the Figure 9.…”

Section: Composite Solid Electrolytementioning

confidence: 99%

“…AlPO 4 is the mostc ommons econdary phase, apart from LTP, once the LATP solid electrolyte is synthesized.I ti sa morphous and forms ab arrierl ayer at the grain boundaries of LATP. [87] The amount of AlPO 4 phase varies, depending upon the synthetic approaches and process parameters. In solid-state synthesis, the residual parent phase may exist due to an incomplete reactioni ft he heat-treatment temperature is too low (i.e., < 600 8C).…”

Section: Secondary Phasesmentioning

confidence: 99%

“…Lei et al synthesized LATP (x = 0.3) from as olutionm ethod and then prepared composite electrolyte materials (CEM) with LATP and poly(vinylidene fluoride) (PVDF) in differentr atios. [87] They tested the Figure 9. Photographs showing the flexibility of the LATP composite electrolyte film:a)LATP@PEGDA@PDMS (PEGDA = poly(ethyleneglycol) diacrylate, PDMS = poly(dimethylsiloxane)); [104] b) LATP@PVDF composite electrolyte, [87] c) LATP@PEO,a nd d) Ice-templating process for the preparationo ft he LATP@PEO composite electrolyte.…”

Section: Composite Solid Electrolytementioning

confidence: 99%

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Synthesis and Properties of NaSICON‐type LATP and LAGP Solid Electrolytes

2019

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Inorganic solid electrolytes, in comparison with their liquid counterparts, have more potential in varioust ypes of batteries due to their dual roles of ion transportation and separation. For all-solid-state batteries, solide lectrolytes bring several advantages, [1][2][3][4][5][6] such as enhanced safety,i ncreased energy density,s olid device integration, and packaging;t hese expand the operation temperature range and potentially improve cycling stabilitya nd lifetime. Moreover,i norganic solid electrolytes are also beneficial for lithium-ion batteries and lithium-air batteries, in which they functiona se ither surface modification layers or lithium-ion conductors. [7,8] In principle, ideal solid electrolytes are expected to have several features: [9][10][11][12][13][14] 1) fast ion dynamics and negligible electronic conductivity (minimum ionic conductivity of 10 À4 Scm À1 at room temperature for practical consideration);2 )a wide electrochemical potential window for battery cycling;3 )ane xceptional mechanical strength to suppress lithium dendrite growth;4 )excellent thermal stability during the cycling processes;and 5) asimple and low cost synthetic process for large-scale applications.Generally,i norganic lithium superionic conductors are divided into three categories:o xides, sulfides, and phosphates. Suc-cessfule xamples in oxidesi nclude garnet oxides, [15,16] perovskite-type oxides, [17,18] and antiperovskite oxides. [19][20][21] Sulfide solid electrolytes include Li 2 SÀP 2 S 5 , [22,23] Li 3 PS 4 , [24][25][26] Li 7 P 3 S 11 , [27,28] Li 7 PS 6 ,a nd Li 6 PS 5 X( X = Cl, Br). [29][30][31] Popular phosphate solid electrolytes include sodium superionic conductor (NaSICON)structured lithium-ion conductors, [32][33][34][35][36] such as LiTi 2 (PO 4 ) 3 (LTP), Li 1 + x Al x Ti 2Àx (PO 4 ) 3 (LATP), and Li 1 + x Al x Ge 2Àx (PO 4 ) 3 (LAGP). Many exciting discoveries of these materials have been summarized in important review papers. [2,6,[37][38][39][40] NaSICON-type solid electrolytes, such as LATP and LAGP, have marked advantages compared with sulfides and oxides: they display chemicals tabilityi na ir and/or water,a re low cost and low toxicity,a nd have great electrochemical stability with the added benefito fe asy preparation. [2,36,38] They also exhibit attractive ionic conductivities of 10 À4 -10 À3 Scm À1 at room temperature. Such features have recently caused renewed interest in these NaSICON-structured materials and much effort has been devoted to the investigation of this type of solid electrolyte, especiallyL ATPa nd LAGP.T his manuscript reviewsr ecent progress in LATP and LAGP solid electrolytes, with as pecific focus on synthetic approaches and their effects on the crystal structures, conductive properties, and applications. Herein, general synthetic methods for LATP and LAGP solid electrolytes are first introduced, followed by ac omparison of the crystal structures, phase purities, and ionic conductivities that result from different approaches. Later,t he applications of LATP and LAGP in ful...

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Section: Secondary Phasesmentioning

confidence: 99%

Section: Composite Solid Electrolytementioning

confidence: 99%

Section: Composite Solid Electrolytementioning

confidence: 99%

Section: Secondary Phasesmentioning

confidence: 99%

Section: Composite Solid Electrolytementioning

confidence: 99%

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Synthesis and Properties of NaSICON‐type LATP and LAGP Solid Electrolytes

2019

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Advanced Composite Solid Electrolyte Architecture Constructed with Amino‐Modified Cellulose and Carbon Nitride via Biosynthetic Avenue

Yin,

Huang,

Liu

et al. 2024

Adv Funct Materials

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Polyethylene oxide (PEO) solid electrolytes are regarded as a promising candidate for all‐solid‐state lithium batteries owing to their high safety and interfacial compatibility. However, PEO electrolyte is plagued by relatively weak structural strength and unsatisfactory Li+ conductivity. Herein, a mechanically strong and Li+ conductively favorable cellulosic scaffold of PEO is fabricated through amino (‐NH2) modification and g‐C3N4 (CN) incorporation of bacterial cellulose (BC) under a microbial circumstance. The biologically ‐NH2 modified BC (B‐NBC) is entangled with CN nanosheets (CN@B‐NBC) through an in situ secretion of nanocellulose followed by hydrogen bond‐induced self‐assembly. The ‐NH2 groups from B‐NBC weaken the complexation of Li+ with its counterpart, thus facilitating the release of more free Li+. CN with strong C‐N covalence and extra lone electrons of N further strengthens the BC skeleton and meanwhile offers sufficient anchors for Li+ migration. After infiltrating by LiTFSI/PEO (LP), the LP/CN@B‐NBC composite solid electrolyte (CSE) exhibits high lithium transference number and ionic conductivity. Upon coupling with LiFePO4 cathode, the full battery exhibits a remarkably high specific capacity, superior rate capability, and decent cycling stability. This work pioneers the attempts of chemical decoration and ingredient incorporation of BC architecture in CSE with the aid of a bottom‐up biosynthetic avenue.

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A Solid‐State Electrolyte Based on Li_0.95Na_0.05FePO₄ for Lithium Metal Batteries

Peng,

Liu,

Zhou

et al. 2023

Advanced Materials

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Solid‐state electrolytes (SSEs) play a crucial role in developing lithium metal batteries (LMBs) with high safety and energy density. Exploring SSEs with excellent comprehensive performance is the key to achieving the practical application of LMBs. In this work, we demonstrate the great potential of Li0.95Na0.05FePO4 (LNFP) as an ideal SSE due to its enhanced ionic conductivity and reliable stability in contact with lithium metal anode. Moreover, LNFP‐based composite solid electrolytes (CSEs) are prepared to further improve electronic insulation and interface stability. The CSE containing 50 wt% of LNFP (LNFP50) shows high ionic conductivity (3.58 × 10−4 S cm−1 at 25 °C) and good compatibility with Li metal anode and cathodes. Surprisingly, the LMB of Li|LNFP50|LiFePO4 cell at 0.5 C current density shows good cycling stability (151.5 mAh g−1 for 500 cycles, 96.5% capacity retention, and 99.3% Coulombic efficiency), and high‐energy LMB of Li|LNFP50|Li[Ni0.8Co0.1Mn0.1]O2 cell maintains 80% capacity retention after 170 cycles, which are better than that with traditional liquid electrolytes (LEs). This investigation offers a new approach to commercializing SSEs with excellent comprehensive performance for high‐performance LMBs.This article is protected by copyright. All rights reserved

show abstract

Fabrication and electrochemical properties of LATP/PVDF composite electrolytes for rechargeable lithium-ion battery

Cited by 87 publications

References 30 publications

Synthesis and Properties of NaSICON‐type LATP and LAGP Solid Electrolytes

Synthesis and Properties of NaSICON‐type LATP and LAGP Solid Electrolytes

Advanced Composite Solid Electrolyte Architecture Constructed with Amino‐Modified Cellulose and Carbon Nitride via Biosynthetic Avenue

A Solid‐State Electrolyte Based on Li_0.95Na_0.05FePO₄ for Lithium Metal Batteries

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Fabrication and electrochemical properties of LATP/PVDF composite electrolytes for rechargeable lithium-ion battery

Cited by 87 publications

References 30 publications

Synthesis and Properties of NaSICON‐type LATP and LAGP Solid Electrolytes

Synthesis and Properties of NaSICON‐type LATP and LAGP Solid Electrolytes

Advanced Composite Solid Electrolyte Architecture Constructed with Amino‐Modified Cellulose and Carbon Nitride via Biosynthetic Avenue

A Solid‐State Electrolyte Based on Li0.95Na0.05FePO4 for Lithium Metal Batteries

Contact Info

Product

Resources

About

A Solid‐State Electrolyte Based on Li_0.95Na_0.05FePO₄ for Lithium Metal Batteries