Preparation of Ce- and La-Doped Li4Ti5O12 Nanosheets and Their Electrochemical Performance in Li Half Cell and Li4Ti5O12/LiFePO4 Full Cell Batteries

Qin, Meng; Li, Yueming; Lv, Xiaojun

doi:10.3390/nano7060150

Cited by 31 publications

(12 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the formation of harmful dendrites on its surface together with the unstable Li-electrolyte interface extremely reduces the widely commercial application of the metal lithium [ 18 , 19 ]. Other potential anode materials including, but not limited to, Li 4 Ti 5 O 12 and Si are also faced with other troublesome obstructions: intrinsic low electrical conductivity and lithium diffusion co-efficient for spinel Li 4 Ti 5 O 12 , and for the Si anode, huge stresses coupled with drastic volume expansion during lithiation, and fracture and/or contact loss of the electroactive Si over cycling [ 20 , 21 , 22 , 23 ]. Hence, intensive research should be conducted to figure out the origin of structural evolution and to explore effective approaches to completely mitigate or eradicate the critical issues mentioned above.…”

Section: Introductionmentioning

confidence: 99%

Recent Progresses and Development of Advanced Atomic Layer Deposition towards High-Performance Li-Ion Batteries

Liang

Sun

et al. 2017

Nanomaterials

View full text Add to dashboard Cite

Electrode materials and electrolytes play a vital role in device-level performance of rechargeable Li-ion batteries (LIBs). However, electrode structure/component degeneration and electrode-electrolyte sur-/interface evolution are identified as the most crucial obstacles in practical applications. Thanks to its congenital advantages, atomic layer deposition (ALD) methodology has attracted enormous attention in advanced LIBs. This review mainly focuses upon the up-to-date progress and development of the ALD in high-performance LIBs. The significant roles of the ALD in rational design and fabrication of multi-dimensional nanostructured electrode materials, and finely tailoring electrode-electrolyte sur-/interfaces are comprehensively highlighted. Furthermore, we clearly envision that this contribution will motivate more extensive and insightful studies in the ALD to considerably improve Li-storage behaviors. Future trends and prospects to further develop advanced ALD nanotechnology in next-generation LIBs were also presented.

show abstract

Section: Introductionmentioning

confidence: 99%

Recent Progresses and Development of Advanced Atomic Layer Deposition towards High-Performance Li-Ion Batteries

Liang

Sun

et al. 2017

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…The practical energy densities of the ZnS-TiC-C//LFP-G full cell at different current rates were calculated using the working potential (~2.5 V) and the capacity from rate-capability measurements (Figure 8d). The calculated energy densities of the ZnS-TiC-C//LFP-G full cell were 236, 175, 148, and 112 Wh kg −1 , respectively, at 0.1, 0.5, 1, and 3 A g −1 which were significantly higher than the energy densities of the common full cell using Li 4 Ti 5 O 12 as an anode and LFP as a cathode (~140 Wh kg −1 at 0.1 A g −1 ) [52].…”

Section: Resultsmentioning

confidence: 99%

Enhanced Cycle Stability of Zinc Sulfide Anode for High-Performance Lithium-Ion Storage: Effect of Conductive Hybrid Matrix on Active ZnS

2019

View full text Add to dashboard Cite

Zinc sulfide (ZnS) nanocrystallites embedded in a conductive hybrid matrix of titanium carbide and carbon, are successfully fabricated via a facile high-energy ball-milling (HEBM) process. The structural and morphological analyses of the ZnS-TiC-C nanocomposites reveal that ZnS and TiC nanocrystallites are homogeneously distributed in an amorphous carbon matrix. Compared with ZnS-C and ZnS composites, the ZnS-TiC-C nanocomposite exhibits significantly improved electrochemical performance, delivering a highly reversible specific capacity (613 mA h g−1 over 600 cycles at 0.1 A g−1, i.e., ~85% capacity retention), excellent long-term cyclic performance (545 mA h g−1 and 467 mA h g−1 at 0.5 A g−1 and 1 A g−1, respectively, after 600 cycles), and good rate capability at 10 A g−1 (69% capacity retention at 0.1 A g−1). The electrochemical performance is significantly improved, primarily owing to the presence of conductive hybrid matrix of titanium carbide and amorphous carbon in the ZnS-TiC-C nanocomposites. The matrix not only provides high conductivity but also acts as a mechanical buffering matrix preventing huge volume changes during prolonged cycling. The lithiation/delithiation mechanisms of the ZnS-TiC-C electrodes are examined via ex situ X-ray diffraction (XRD) analysis. Furthermore, to investigate the practical application of the ZnS-TiC-C nanocomposite, a coin-type full cell consisting of a ZnS-TiC-C anode and a LiFePO4–graphite cathode is assembled and characterized. The cell exhibits excellent cyclic stability up to 200 cycles and a good rate performance. This study clearly demonstrates that the ZnS-TiC-C nanocomposite can be a promising negative electrode material for the next-generation lithium-ion batteries.

show abstract

“…On the other hand, in order to evaluate the practical extension of the response of a given electrode, it is very interesting to incorporate it as a full cell-component and to characterize the resulting electrochemical behavior [ 49 ]. Thus, the behavior of our FO sample versus a conventional cathode was evaluated.…”

Section: Resultsmentioning

confidence: 99%

New Fe2O3-Clay@C Nanocomposite Anodes for Li-Ion Batteries Obtained by Facile Hydrothermal Processes

Alonso-Domínguez

Pico²,

Álvarez-Serrano

et al. 2018

Nanomaterials

View full text Add to dashboard Cite

New iron-oxide-based anodes are prepared by an environmentally-friendly and low-cost route. The analysis of the composition, structure, and microstructure of the samples reveals the presence of a major hematite phase, which is accompanied by a certain concentration of an oxyhydroxide phase, which can act as a “lithium-reservoir”. By using sodium alginate as a binder, the synthesized anodes display superior electrochemical response, i.e., high specific capacity values and high stability, not only versus Li but also versus a high voltage cathode in a full cell. From these bare materials, clay-supported anodes are further obtained using sepiolite and bentonite natural silicates. The electrochemical performance of such composites is improved, especially for the sepiolite-containing one treated at 400 °C. The thermal treatment at this temperature provides the optimal conditions for a synergic nano-architecture to develop between the clay and the hematite nanoparticles. High capacity values of ~2500 mA h g−1 after 30 cycles at 1 A g−1 and retentions close to 92% are obtained. Moreover, after 450 cycles at 2 A g−1 current rate, this composite electrode displays values as high as ~700 mA h g−1. These results are interpreted taking into account the interactions between the iron oxide nanoparticles and the sepiolite surface through hydrogen bonds. The electrochemical performance is not only dependent on the oxidation state and particle morphology, but the composition is revealed as a key feature.

show abstract

Preparation of Ce- and La-Doped Li4Ti5O12 Nanosheets and Their Electrochemical Performance in Li Half Cell and Li4Ti5O12/LiFePO4 Full Cell Batteries

Cited by 31 publications

References 48 publications

Recent Progresses and Development of Advanced Atomic Layer Deposition towards High-Performance Li-Ion Batteries

Recent Progresses and Development of Advanced Atomic Layer Deposition towards High-Performance Li-Ion Batteries

Enhanced Cycle Stability of Zinc Sulfide Anode for High-Performance Lithium-Ion Storage: Effect of Conductive Hybrid Matrix on Active ZnS

New Fe2O3-Clay@C Nanocomposite Anodes for Li-Ion Batteries Obtained by Facile Hydrothermal Processes

Contact Info

Product

Resources

About