Pioneer study of SiP<sub>2</sub> as negative electrode for Li- and Na-ion batteries

Duveau, D.; Israel, Susan Sananes; Fullenwarth, Julien; Cunin, Frédérique; Monconduit, Laure

doi:10.1039/c6ta00103c

Cited by 58 publications

(42 citation statements)

References 26 publications

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“…Recently, several phosphidosilicates with isolated or condensed SiP 4 tetrahedra have demonstrated lithium or sodium ion conductivity, for example Li 8 SiP 4 , Li 2 SiP 2 ,, LiSi 2 P 3 , and the series Na 23 Si 9 n +19 P 12 n +33 ( n = 0–3) . These compounds have also been studied in the framework of the electrochemical mechanism of SiP 2 /Li anodes , . Except Li 8 SiP 4 with isolated [SiP 4 ] 8– tetrahedra, the crystal structures feature networks of interpenetrating T2–T5 supertetrahedra according to the Yaghi notation , , .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Structure of the Sodium Phosphidosilicate Na₂SiP₂

et al. 2020

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Ion conductors of light alkaline metals based on earth‐abundant elements are important components for all‐solid‐state batteries. The new sodium‐rich phosphidosilicate Na2SiP2 was synthesized by solid state reaction of stoichiometric amounts of the elements at 973 K and characterized by single‐crystal X‐ray diffraction (space group Pccn (no. 56), a = 12.7929(5) Å, b = 22.3109(9) Å, c = 6.0522(2) Å and Z = 16) and solid‐state NMR under MAS conditions. The compound forms dark‐red twinned crystals, and its crystal structure contains edge‐sharing SiP4 tetrahedra connected to infinite ∞1[SiP4/2] chains. The sodium ions between the chains are fairly mobile. Electrochemical impedance spectroscopy shows a total ionic conductivity of σ(Na+, 373 K) = 2.3 ? 10–6 Scm–1 with an activation energy of Ea = 0.43 eV, and the galvanostatic polarization reveals mixed conduction behavior with a transference number of 0.8.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Structure of the Sodium Phosphidosilicate Na₂SiP₂

et al. 2020

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“…[16] Zhao et al prepared CuP 2 /C composites that exhibited a capacity of 430 mA h g À 1 after 30 cycles. [17] Anodes composed of other MPs, such as SiP 2 , [18] Cu 3 P, [19] Co 2 P, [20] Ni 2 P, [21] FeP, [22] and Zn 3 P 2, [23] have also been reported recently. However, such MP anodes demonstrate poor cyclability and rate performance in SIBs because of the large volume variation that occurs during repeated sodiation/desodiation processes.…”

Section: Introductionmentioning

confidence: 99%

Electrodeposited Binder‐Free Antimony−Iron−Phosphorous Composites as Advanced Anodes for Sodium‐Ion Batteries

et al. 2019

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The limited availability and rising cost of lithium have motivated research into sodium as an alternative ion for rechargeable batteries. However, anode development for such sodium-ion batteries (SIBs) has advanced slowly. Herein, novel binder-free ternary SbÀ FeÀ P composites were synthesized through a controllable electrodeposition method and were examined as prospective anode materials for sodium-ion batteries (SIBs). The Sb 47 Fe 39 P 14 electrode exhibited a high desodiation capacity of 431.4 mA h g À 1 at 100 mA g À 1 with a capacity retention of 97.8% during the 200 th cycle. Further, this anode delivered a high rate capacity (245.8 mA h g À 1 at 2000 mA g À 1 ). The promising Na-ion storage, cycle and rate performance of the Sb 47 Fe 39 P 14 electrode are mainly ascribed to the synergistic effect of its microstructure and active/inactive metal matrix. A kinetics investigation revealed that the rate capability of the Sb 47 Fe 39 P 14 electrode can be attributed to the combination of primary pseudocapacitive and secondary solid-state diffusion contributions. The results of this study should enable the development of a controllable, scalable electrodeposition strategy and help explore other metallic composites with excellent lifespans and high rate capabilities for practical SIB applications.

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“…As shown in Figure 4e, the Coulombic efficiency remains at ≈100% after 500 cycles at a current density of 300 mA g −1 while maintaining ≈80.5% of the initial discharge capacity (at 1955 mAh g −1 ). Notably, the Li-storage performance of the ZnSi 2 P 3 /C nanocomposite is superior to most reported P-and Si-based anodes [2,3,6,8,9,11,19,[32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50] in terms of initial Coulombic efficiency and cycling stability (Figure 4g). Notably, the Li-storage performance of the ZnSi 2 P 3 /C nanocomposite is superior to most reported P-and Si-based anodes [2,3,6,8,9,11,19,[32][33][34][35][36][37][38][39][40][41][42][43]…”

Section: Li-storage Performance Of Znsi 2 P 3 /C Nanocompositementioning

confidence: 85%

Zn(Cu)Si₂₊_xP₃ Solid Solution Anodes for High‐Performance Li‐Ion Batteries with Tunable Working Potentials

Zhang

et al. 2019

Adv Funct Materials

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Si-based anodes with a stiff diamond structure usually suffer from sluggish lithiation/delithiation reaction due to low Li-ion and electronic conductivity. Here, a novel ternary compound ZnSi 2 P 3 with a cationdisordered sphalerite structure, prepared by a facile mechanochemical method, is reported, demonstrating faster Li-ion and electron transport and greater tolerance to volume change during cycling than the existing Si-based anodes. A composite electrode consisting of ZnSi 2 P 3 and carbon achieves a high initial Coulombic efficiency (92%) and excellent rate capability (950 mAh g −1 at 10 A g −1 ) while maintaining superior cycling stability (1955 mAh g −1 after 500 cycles at 300 mA g −1 ), surpassing the performance of most Si-and P-based anodes ever reported. The remarkable electrochemical performance is attributed to the sphalerite structure that allows fast ion and electron transport and the reversible Li-storage mechanism involving intercalation and conversion reactions. Moreover, the cation-disordered sphalerite structure is flexible to ionic substitutions, allowing extension to a family of Zn(Cu)Si 2+x P 3 solid solution anodes (x = 0, 2, 5, 10) with large capacity, high initial Coulombic efficiency, and tunable working potentials, representing attractive anode candidates for next-generation, high-performance, and low-cost Li-ion batteries.

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Pioneer study of SiP₂ as negative electrode for Li- and Na-ion batteries

Abstract: For the first time it is demonstrated that a dense SiP2 pyrite-type obtained by a very simple ball milling method delivers outstanding capacity in both lithium and sodium batteries with up to 1000 mA h g−1 and 572 mA h g−1 sustained after 30 and 15 cycles respectively.

Cited by 58 publications

References 26 publications

Synthesis and Structure of the Sodium Phosphidosilicate Na₂SiP₂

Synthesis and Structure of the Sodium Phosphidosilicate Na₂SiP₂

Electrodeposited Binder‐Free Antimony−Iron−Phosphorous Composites as Advanced Anodes for Sodium‐Ion Batteries

Zn(Cu)Si₂₊_xP₃ Solid Solution Anodes for High‐Performance Li‐Ion Batteries with Tunable Working Potentials

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Pioneer study of SiP2 as negative electrode for Li- and Na-ion batteries

Abstract: For the first time it is demonstrated that a dense SiP2 pyrite-type obtained by a very simple ball milling method delivers outstanding capacity in both lithium and sodium batteries with up to 1000 mA h g−1 and 572 mA h g−1 sustained after 30 and 15 cycles respectively.

Cited by 58 publications

References 26 publications

Synthesis and Structure of the Sodium Phosphidosilicate Na2SiP2

Synthesis and Structure of the Sodium Phosphidosilicate Na2SiP2

Electrodeposited Binder‐Free Antimony−Iron−Phosphorous Composites as Advanced Anodes for Sodium‐Ion Batteries

Zn(Cu)Si2+xP3 Solid Solution Anodes for High‐Performance Li‐Ion Batteries with Tunable Working Potentials

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Pioneer study of SiP₂ as negative electrode for Li- and Na-ion batteries

Synthesis and Structure of the Sodium Phosphidosilicate Na₂SiP₂

Synthesis and Structure of the Sodium Phosphidosilicate Na₂SiP₂

Zn(Cu)Si₂₊_xP₃ Solid Solution Anodes for High‐Performance Li‐Ion Batteries with Tunable Working Potentials