MOFs as reactant: In situ synthesis of Li2ZnTi3O8@C–N nanocomposites as high performance anodes for lithium-ion batteries

Wang, Xiaojie; Wang, Limin; Chen, Baokuan; Yao, Jun; Zeng, Hong‐Yan

doi:10.1016/j.jelechem.2016.06.024

Cited by 24 publications

(10 citation statements)

References 74 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to previous reports, nitrogen doping in carbon can enhance the electronic conductivity of carbon matrices and create abundant defects (for instance, nano-pores) on carbon [ 60 , 61 ]. XPS was performed to determine the nitrogen species in Bi@NC.…”

Section: Resultsmentioning

confidence: 99%

Bi Nanoparticles Anchored in N-Doped Porous Carbon as Anode of High Energy Density Lithium Ion Battery

Zhong

et al. 2018

Nano-Micro Lett.

121

View full text Add to dashboard Cite

A novel bismuth–carbon composite, in which bismuth nanoparticles were anchored in a nitrogen-doped carbon matrix (Bi@NC), is proposed as anode for high volumetric energy density lithium ion batteries (LIBs). Bi@NC composite was synthesized via carbonization of Zn-containing zeolitic imidazolate (ZIF-8) and replacement of Zn with Bi, resulting in the N-doped carbon that was hierarchically porous and anchored with Bi nanoparticles. The matrix provides a highly electronic conductive network that facilitates the lithiation/delithiation of Bi. Additionally, it restrains aggregation of Bi nanoparticles and serves as a buffer layer to alleviate the mechanical strain of Bi nanoparticles upon Li insertion/extraction. With these contributions, Bi@NC exhibits excellent cycling stability and rate capacity compared to bare Bi nanoparticles or their simple composites with carbon. This study provides a new approach for fabricating high volumetric energy density LIBs.Electronic supplementary materialThe online version of this article (10.1007/s40820-018-0209-1) contains supplementary material, which is available to authorized users.

show abstract

Section: Resultsmentioning

confidence: 99%

Bi Nanoparticles Anchored in N-Doped Porous Carbon as Anode of High Energy Density Lithium Ion Battery

Zhong

et al. 2018

Nano-Micro Lett.

121

View full text Add to dashboard Cite

show abstract

“…The excellent properties might be attributed to the elevated electrical conductivity, resulting from the thin carbon layers deposited on nanobelts surfaces and the one-dimentional (1D) nanostructure facilitating the electron transport along the long dimension. Wang et al [186] in situ prepared nitrogen-doped carbon coatings on Li 2 ZnTi 3 O 8 nanoparticles using ZIF-8 as the carbon, nitrogen, and zinc sources. The nitrogen-doped carbon coatings could prevent the growth of the Li 2 ZnTi 3 O 8 nanoparticles and significantly improve the electrical conductivity (Fig.…”

Section: Introduction Of Li-m-ti-omentioning

confidence: 99%

Advanced composites of complex Ti-based oxides as anode materials for lithium-ion batteries

Lin

Wang

et al. 2018

Adv Compos Hybrid Mater

View full text Add to dashboard Cite

Lithium-ion batteries (LIBs) are increasingly used in portable electronics due to their high energy densities, long cycle life, low self-discharge properties, and environmentally friendly features. To satisfy future large-scale energy storage, the development of high-performance electrode materials is highly important. Complex Ti-based oxides (such as Li 4 Ti 5 O 12 and Li-M-Ti-O) have interesting properties for anode applications, including good safety performance and high cyclic stability. However, most of the complex Ti-based oxides suffer from low electronic conductivities and insufficient Li + -ion diffusion coefficients, significantly limiting their rate capabilities. In general, compositing is an effective strategy to tackle this issue. Comprehensively good electrochemical performance can be achieved in the composites arising from the complementarity and correlation of the components. This review focuses on the composite characteristics and compositing methods of the complex Ti-based oxides for highperformance lithium-ion storage. The relations among the material composition, material fabrication, material structure, material property and LIB performance are emphasized. In addition, a vista of future research and development in this research field is also presented.

show abstract

“…To gain a deeper insight into the effect of Ta 5+ doping on the performances, electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) analyses have been conducted to unveil the electrochemical kinetics and polarization at different cycles. Figure 8 A compares the EIS spectra obtained from the half cells at the 100 th , 500 th , and 1000 th cycles at 5A/g with a charge potential of 1.5 V. The Nyquist plots are composed of two semicircles and a sloped tail, and the fitting result is simulated based on the equivalent circuit including the electrolyte resistance ( R s ), SEI film resistance ( R SEI ), charge transfer resistance ( R ct ), constant phase elements ( CPE 1 , CPE 2 ) and Warburg impedance ( Z w ) that are directly related to Li + diffusion resistance ( Wang et al., 2016 ; Yang et al., 2015 ). The fitting results of R s , R SEI , R ct, and Li + ion diffusion coefficient ( D Li+ ) are listed in Table 2 .…”

Section: Resultsmentioning

confidence: 99%

Solid-state self-template synthesis of Ta-doped Li2ZnTi3O8 spheres for efficient and durable lithium storage

Yang

et al. 2021

iScience

View full text Add to dashboard Cite

Summary Ta-doped Li 2 ZnTi 3 O 8 (LZTO) spheres (Li 2 ZnTi 3- x Ta x O 8 ; where x is the synthetic chemical input, x = 0, 0.03, 0.05, 0.07) are synthesized via solid-state reaction using mesoporous TiO 2 spheres as the self-template. The majority of Ta 5+ ions are uniformly doped into crystal lattices of LZTO through the Ti↔Ta substitution, and the rest forms the piezoelectric LiTaO 3 secondary phase on the surface, as confirmed by X-ray diffraction refinement, Raman spectroscopy, density functional theory, and electron microscopy. Electrochemical impedance spectroscopy demonstrates that the Ta 5+ doping creates rapid electronic transportation channels for high Li + ion diffusion kinetics; however, the LiTaO 3 surface coating is beneficial to improve the electronic conductivity. At the optimal x = 0.05, Li 2 ZnTi 3- x Ta x O 8 spheres exhibit a reversible capacity of 90.2 mAh / g after 2000 cycles with a high coulombic efficiency of ≈100% at 5.0 A/g, thus enabling a promising anode material for lithium-ion batteries with high power and energy densities.

show abstract

MOFs as reactant: In situ synthesis of Li2ZnTi3O8@C–N nanocomposites as high performance anodes for lithium-ion batteries

Cited by 24 publications

References 74 publications

Bi Nanoparticles Anchored in N-Doped Porous Carbon as Anode of High Energy Density Lithium Ion Battery

Bi Nanoparticles Anchored in N-Doped Porous Carbon as Anode of High Energy Density Lithium Ion Battery

Advanced composites of complex Ti-based oxides as anode materials for lithium-ion batteries

Solid-state self-template synthesis of Ta-doped Li2ZnTi3O8 spheres for efficient and durable lithium storage

Contact Info

Product

Resources

About