Al4B2O9 nanorods-modified solid polymer electrolytes with decent integrated performance

Guo, Xiqiang; Peng, Wenjie; Wu, Yuqi; Guo, Huajun; Wang, Zhixing; Li, Xinhai; Ke, Yanxiong; Wu, Lijue; Fu, Haikuo; Wang, Jiexi

doi:10.1007/s40843-020-1393-2

Cited by 9 publications

(3 citation statements)

References 66 publications

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“…The acidic hydrogen titanate nanotubes can promote the dissociation of lithium perchlorate at the interface between the polymer and the nanotube fillers, and thus the PAN-LiClO4 composite electrolyte with 10 wt.% nanofillers showed a high ionic conductivity of ∼ 4 × 10 −4 S•cm −1 at room temperature, which was almost two orders of magnitude higher than the original electrolyte. Guo et al [175] synthesized Al4B2O9 (ABO) nanorods by an economical sol-gel method and then added ABO into PEO matrix to prepare PEO based SPEs (ASPEs). Due to the longer-range ordered Li + transfer channels generated by the interaction between the ABO nanorods and PEO, the optimal ASPE exhibited high ionic conductivities of 4.35 × 10 −1 and 3.1 × 10 −1 S•cm −1 at 30 and 60 °C, respectively.…”

Section: One-dimensional (1d) Nanofillermentioning

confidence: 99%

Solid polymer electrolytes: Ion conduction mechanisms and enhancement strategies

Zhang

Meng

Hou

et al. 2023

Nano Research Energy

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Solid polymer electrolytes (SPEs) possess comprehensive advantages such as high flexibility, low interfacial resistance with the electrodes, excellent film-forming ability, and low price, however, their applications in solid-state batteries are mainly hindered by the insufficient ionic conductivity especially below the melting temperatures, etc. To improve the ion conduction capability and other properties, a variety of modification strategies have been exploited. In this review article, we scrutinize the structure characteristics and the ion transfer behaviors of the SPEs (and their composites) and then disclose the ion conduction mechanisms. The ion transport involves the ion hopping and the polymer segmental motion, and the improvement in the ionic conductivity is mainly attributed to the increase of the concentration and mobility of the charge carriers and the construction of fast-ion pathways. Furthermore, the recent advances on the modification strategies of the SPEs to enhance the ion conduction from copolymer structure design to lithium salt exploitation, additive engineering, and electrolyte micromorphology adjustion are summarized. This article intends to give a comprehensive, systemic, and profound understanding of the ion conduction and enhancement mechanisms of the SPEs for their viable applications in solid-state batteries with high safety and energy density.

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Section: One-dimensional (1d) Nanofillermentioning

confidence: 99%

Solid polymer electrolytes: Ion conduction mechanisms and enhancement strategies

Zhang

Meng

Hou

et al. 2023

Nano Research Energy

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“…Depending on composition, SSEs can be categorized into three primary systems: inorganic, polymeric, and composite SSEs. − Inorganic SSEs have undergone extensive research owing to their intrinsic nonflammability and high shear modulus, which mainly include sulfide-type (LPSX, X = Cl, Br, I), garnet-type (LLZO), , sodium superionic conductor (NASICON)-type (LAGP), − perovskite-type (LLTO), , and lithium phosphorus oxynitride (LiPON). , Among all of the various SSEs, the garnet-type SSE Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) is particularly notable due to its impressive ionic conductivity of approximately 1 mS cm –1 at room temperature, remarkable stability with a lithium metal anode, and wide electrochemical window. − However, garnet-type SSEs present a couple of challenges demanding resolution. First, garnet-type SSEs have a susceptibility to reacting with H 2 O and CO 2 , which results in the formation of Li 2 CO 3 and diminishes the wettability of garnet-type SSEs and the Li anode interface .…”

Section: Introductionmentioning

confidence: 99%

Economic and Effective Construction of a P/Sn Multifunctional Layer on the Li/Garnet Interface via Transformation Reactions

Zhao,

Lin,

Yang

et al. 2024

ACS Sustainable Chem. Eng.

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Garnet-based solid-state electrolytes (SSEs) have been regarded as one of the most promising ideal candidates for applications in all-solid-state lithium metal batteries (ASSLMBs) due to their high electrochemical stability, wide potential window, and superior safety performance. However, their practical utilization is currently limited by their poor interfacial compatibility and short cycling life. Here, a low-cost and effective interfacial modification method is proposed to improve the interfacial contact by introducing a thin uniform modified layer of Sn 4 P 3 on the surface of garnet-type Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 SSE. According to experimental results and theoretical calculations, it has been discovered that Li and Sn 4 P 3 undergo a transformation reaction, resulting in the production of a multifunctional interfacial layer consisting of Li 22 Sn 5 /Li 8 SnP 4 . Specifically, due to the presence of this layer, the interfacial impedance of the Li−Li symmetric cell is just approximately 1 Ω cm −2 and the symmetric cell exhibits a critical current density of 1.7 mA cm −2 at room temperature. The remarkable features of the electrolyte interface ensure that the symmetric cells are capable of stable electrochemical cycling for >1800 h at 0.5 mA cm −2 . Additionally, the ASSLMBs demonstrate favorable cycling and rate performance. This effective transformation reaction-driven interfacial modification strategy offers a beneficial means of resolving the interfacial issues of Li/garnet-state SSEs.

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“…Solid electrolytes play a crucial role in the overall electrochemical performance of SSLBs. Polymer electrolytes including poly(ethylene oxide) (PEO) [5,6], poly(acrylonitrile) [7], poly(methyl methacrylate) [8], and poly(vinylidene fluoride) (PVDF) [9], combined with Li salts such as LiClO 4 and Li bis-(trifluoromethanesulfonyl)imide (LiTFSI)), are among the most promising types of solid electrolytes that are currently available because their excellent flexibility and processability render industrial production feasible [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Modulating composite polymer electrolyte by lithium closo-borohydride achieves highly stable solid-state battery at 25°C

et al. 2021

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Rational composite design is highly important for the development of high-performance composite polymer electrolytes (CPEs) for solid-state lithium (Li) metal batteries. In this work, Li closo-borohydride, Li 2 B 12 H 12 , is introduced to poly(vinylidene fluoride)-Li-bis-(trifluoromethanesulfonyl) imide (PVDF-LiTFSI) with a bound N-methyl pyrrolidone plasticizer to form a novel CPE. This CPE shows superb Li + conduction properties, as evidenced by its conductivity of 1.43 × 10 −4 S cm −1 and Li + transference number of 0.34 at 25°C. Density functional theory calculations reveal that Li 2 B 12 H 12 , which features electron-deficient multicenter bonds, can facilitate the dissociation of LiTFSI and enhance the immobilization of TFSI to improve the Li + conduction properties of the CPE. Moreover, the fabricated CPE exhibits excellent electrochemical, thermal, and mechanical stability. The addition of Li 2 B 12 H 12 can help form a protective layer at the anode/ electrolyte interface, thereby preventing unwanted reactions. The above benefits of the fabricated CPE contribute to the high compatibility of the electrode. Symmetric Li cells can be stably cycled at 0.2 mA cm −2 for over 1200 h, and Li||LiFePO 4 cells can deliver a reversible specific capacity of 140 mA h g −1 after 200 cycles at 1 C at 25°C with a capacity retention of 98%.

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Al4B2O9 nanorods-modified solid polymer electrolytes with decent integrated performance

Cited by 9 publications

References 66 publications

Solid polymer electrolytes: Ion conduction mechanisms and enhancement strategies

Solid polymer electrolytes: Ion conduction mechanisms and enhancement strategies

Economic and Effective Construction of a P/Sn Multifunctional Layer on the Li/Garnet Interface via Transformation Reactions

Modulating composite polymer electrolyte by lithium closo-borohydride achieves highly stable solid-state battery at 25°C

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