Engineering the Distribution of Carbon in Silicon Oxide Nanospheres at the Atomic Level for Highly Stable Anodes

Zhu, Guanjia; Zhang, Fangzhou; Li, Xiaomin; Luo, Wei; Li, Li; Zhang, Hui; Wang, Lianjun; Wang, Yunxiao; Jiang, Wan; Liu, Huan; Dou, Shi Xue; Yang, Jianping

doi:10.1002/anie.201902083

Cited by 229 publications

(132 citation statements)

References 31 publications

Supporting

Mentioning

132

Contrasting

Order By: Relevance

“…Rechargeable Li-ion batteries (LIBs) have been successfully used in applications such as artificial pacemakers, electric vehicles, and smart grids owing to their high power densities and long lifespan. [1][2][3][4] Unfortunately, commercial carbon anode materials cannot meet the demands of future devices for versatile power sources. Furthermore, the limited availability of lithium and its rapidly increasing cost restrict its applications in smart-grid applications.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2019

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

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

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Since the synthesized silica spheres have no porous structure, the porous structure needs to be produced by etching. Silica sphere prepared by the Stöber method were reduced, and excess silica was removed with hydrofluoric acid to obtain porous silicon . The inner porous silicon nanorods(p‐Si NRs) prepared by magnesiothermic reduction that the inner pore structure was obtained by etching with dilute HCl using Al 2 O 3 as a sacrificial template .…”

Section: Suitable Structural Design Of Silicon Anodementioning

confidence: 99%

Silicon Anodes for High‐Performance Storage Devices: Structural Design, Material Compounding, Advances in Electrolytes and Binders

Hou

Yang

2020

ChemNanoMat

View full text Add to dashboard Cite

Silicon has an extremely high theoretical capacity, a low voltage platform, and abundant natural reserves. It is considered to be one of the most promising anode materials for lithium-ion batteries. However, there are still many problems with silicon as an anode material for lithium-ion batteries. During the lithiation/delithiation of silicon, a huge volume expansion occurs, causing the silicon particles to pulverize and the capacity to drop sharply. Furthermore, the continuous increase in the silicon surface solid electrolyte interphase (SEI) films and the poor conductivity of silicon affect the specific capacity of the battery. Means to improve silicon-based anodes with regard to electrode cycling performance and electrode capacity include structural design, composite preparation, or improvements in electrolytes and binders (for example, designing silicon nanomaterials of different dimensions from 0D to 3D, including silicon nanoparticles, nanowires, nanorods, thin films, porous silicon, and core-shell structures). Silicon has been combined with different materials to buffer its own volume expansion, resulting in excellent performance. In addition, the design of a reasonable electrolyte solution, as well as the development of a selfhealing binder is one of the main methods to improve Sibased anodes. In recent years, sodium/potassium ion batteries have been increasingly studied, and silicon and sodium/potassium can be alloyed. The corresponding theoretical capacity can reach 954 mAh g À 1 and 955 mAh g À 1 , respectively. Advances in silicon-based anodes for sodium/ potassium ion storage are summarized herein.ductility. [25] It can increase the conductivity of silicon and adapt to the large volume expansion of silicon. In addition, some are compounded with silicon or metal or metal oxides. Such as copper, silver, tin oxide and titanium oxide. [39][40][41][42][43][44] In addition to changing the silicon's own morphological structure and preparing composite materials, the design and selection of electrolytes and binders is to improve the performance of silicon-based electrodes from the outside. By selecting the appropriate electrolytes, the electrode materials can be effectively reduced deterioration. At present, various additive-modified organic solvent electrolytes, ionic liquid electrolytes, and all-solid electrolytes are widely used in silicon-based anodes. [45][46][47][48] In addition, it is widely applicable to the binder polyvinylidene fluoride(PVDF) of lithium ion battery electrode materials, but

show abstract

“…[67] The porous ASD-SiOC nanocomposite can be fabricated throughasol-gel processa nd subsequent calcination (Figure 8a). [67] The porous ASD-SiOC nanocomposite can be fabricated throughasol-gel processa nd subsequent calcination (Figure 8a).…”

Section: Engineering Carbon Distribution At the Atomic Levelmentioning

confidence: 99%

“…Owing to the molecular organicinorganic hybrid feature of the intermediate product, the carbon can be well dispersed at the atomic scale in the whole architecture (Figures 8b-d). Reproduced with permissionfrom reference [67].C opyright 2019,Wiley-VCH. This research indicates that the distribution of carbon in the C/Si-based composite plays as ignificant role in directing the steady long-term cyclability,w hich injectsn ew insights into the designo fr ational C/Si-based anodes.…”

Section: Engineering Carbon Distribution At the Atomic Levelmentioning

confidence: 99%

Engineering Carbon Distribution in Silicon‐Based Anodes at Multiple Scales

Zhu

Jiang

Yang

2019

Chemistry A European J

Self Cite

View full text Add to dashboard Cite

Thes uccessful commercialization of promising silicon-based anode materials has been hampered by their poor cycling stability caused by the huge volume change. Integration of the carbon matrix with silicon-based (C/Sibased) anode materials has been demonstrated to be a powerful solution to achieve satisfactory electrochemical performance. This minireview aims to outline recent devel-opments on C/Si-based composites, with the emphasis on the importance of carbon distribution at multiple scales. In addition, the forms of the carbon framework (carbon sources and doping of heteroatoms) have been summarized. Particularly,anovel C/Si-based hybrid with carbon distributeda t the atomic scale has been highlighted.

show abstract

Engineering the Distribution of Carbon in Silicon Oxide Nanospheres at the Atomic Level for Highly Stable Anodes

Cited by 229 publications

References 31 publications

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

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

Silicon Anodes for High‐Performance Storage Devices: Structural Design, Material Compounding, Advances in Electrolytes and Binders

Engineering Carbon Distribution in Silicon‐Based Anodes at Multiple Scales

Contact Info

Product

Resources

About