Multiscale Buffering Engineering in Silicon–Carbon Anode for Ultrastable Li-Ion Storage

Hou, Guolin; Cheng, Benli; Yang, Yijun; Du, Yu; Zhang, Yihui; Li, Baoqiang; He, Jiaping; Zhou, Yunzhan; Ding, Yi; Zhao, Nana; Bando, Yoshio; Golberg, Dmitri; Yao, Jiannian; Wang, Xi; Yuan, Fangli

doi:10.1021/acsnano.9b03355

Cited by 90 publications

(45 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such irreversible capacity loss is from the consumption of electrolyte and formation of SEI in the first cycle. [23] The CE in the second and third cycles increases to 93.61 % and 95.38 %, respectively, and remains more than ~99 % afterward, which further indicates carbon layer could alleviate the volume expansion efficiently and the formation of a stable SEI layer. By comparation, the ICE for 0.08Si@NC-6 h is 66.27 % (Figure S7).…”

Section: Chemphyschemmentioning

confidence: 87%

Dealloying Synthesis of Silicon Nanotubes for High‐Performance Lithium Ion Batteries

Zhao

Wei

et al. 2022

ChemPhysChem

View full text Add to dashboard Cite

Practical applications of silicon-based anodes in lithium ion batteries have attracted unprecedented attentions due to the merits of extraordinary energy density, high safety and low cost. Nevertheless, the inevitable huge volume change upon lithiation and delithiation brings about silicon electrode integrity damage and fast capacity fading, hampering the large-scale application. Herein, a novel one-dimensional tubular siliconnitrogen doped carbon composite (Si@NC) with a core-shell structure has been fabricated using silicon magnesium alloy and polydopamine as a template and precursor. The asobtained composite exhibits remarkable specific capacity and ultrafast redox kinetics, an outstanding cycling stability with fine capacity of 583.6 mAh g À 1 at 0.5 A g À 1 over 200 cycles is delivered. Moreover, a full cell matched with LiFePO 4 cathode has demonstrated a reversible capacity of 148.8 mAh g À 1 with high Coulombic efficiency as well as an excellent energy density of 396 Wh kg À 1 . The nanotube structure engineering and silicon confined in nitrogen doped carbon effectively alleviate the volume expansion and endow the composite with superior stability. The robust strategy developed here gives a new insight into designing silicon anodes for enhanced lithium storage properties.

show abstract

Section: Chemphyschemmentioning

confidence: 87%

Dealloying Synthesis of Silicon Nanotubes for High‐Performance Lithium Ion Batteries

Zhao

Wei

et al. 2022

ChemPhysChem

View full text Add to dashboard Cite

show abstract

Section: Synthesis Strategies Of Si With Different Nanostructuresmentioning

confidence: 99%

“…Hou et al. [ 142 ] used the RFTP method to prepare Si‐NWs to achieve mass production in kilograms, the production capacity of Si‐NWs prepared by the RFTP method could reach 300 g h −1 . They used nano‐Si/C nanowires to fabricate micro‐scale wool ball frames to achieve high‐yield production (Figure 5i).…”

Section: Synthesis Strategies Of Si With Different Nanostructuresmentioning

confidence: 99%

Revisiting the Preparation Progress of Nano‐Structured Si Anodes toward Industrial Application from the Perspective of Cost and Scalability

Lai

et al. 2022

Advanced Energy Materials

104

View full text Add to dashboard Cite

The urgent demand for lithium ion batteries with high energy density is driving the increasing research interest in Si, which possesses an ultrahigh theoretical capacity. Though various modification strategies have been proposed from the aspects of electrolytes, binders, Si‐M alloys, and Si/C composites, the preparation of nano‐structured Si is the first step for industrial application, since it has the potential solve the intrinsic problem of severe volume change during the lithiation/delithiation process. A series of Si nanostructures including 0D (nanoparticles), 1D (nanowires, nanotubes), 2D (thin film), and 3D (porous structure) have been developed and displayed encouraging results. However, it remains a great challenge to realize industrial production with acceptable cost and batch stability. In this review, the preparation development of nano‐structured Si is revisited. After briefly introducing the market situation for nanostructured Si, the fabrication of various kinds of nanostructure Si are introduced, and the corresponding progress including ball milling, magnesium thermal reduction, temple method, chemical vapor deposition, and chemical etching are comprehensively reexamined and compared from the perspective of mechanism, cost, technical maturity, and recent development. Finally, the further directions of nano‐structured Si preparation toward industrial production are deeply discussed. This review of preparation of nanostructured Si helps to pave the way toward commercial application of high energy density Si‐anodes.

show abstract

“…[ 6,30 ] On this basis, it is critical to further complete the comprehensive test of the developed materials in the full cells, which will provide important reference for the commercialization process. [ 31–33 ] Recently, Li et al. pointed out that there are significant differences between half cells and full cells, including the preparation technology of electrode pasting, coating mass density, amount of conductive agent, and compaction density.…”

Section: Introductionmentioning

confidence: 99%

Simple Designed Micro–Nano Si–Graphite Hybrids for Lithium Storage

Huang

et al. 2021

Small

View full text Add to dashboard Cite

Up to now, the silicon‐graphite anode materials with commercial prospect for lithium batteries (LIBs) still face three dilemmas of the huge volume effect, the poor interface compatibility, and the high resistance. To address the above challenges, micro–nano structured composites of graphite coating by ZnO‐incorporated and carbon‐coated silicon (marked as Gr@ZnO‐Si‐C) are reasonably synthesized via an efficient and convenient method of liquid phase self‐assembly synthesis combined with annealing treatment. The designed composites of Gr@ZnO‐Si‐C deliver excellent lithium battery performance with good rate performance and stable long‐cycling life of 1000 cycles with reversible capacities of 1150 and 780 mAh g−1 tested at 600 and 1200 mA g−1, respectively. The obtained results reveal that the incorporated ZnO effectively improve the interface compatibility between electrolyte and active materials, and boost the formation of compact and stable surface solid electrolyte interphase layer for electrodes. Furthermore, the pyrolytic carbon layer formed from polyacrylamide can directly improve electrical conductivity, decrease polarization, and thus promote their electrochemical performance. Finally, based on the scalable preparation of Gr@ZnO‐Si‐C composites, the pouch full cells of Gr@ZnO‐Si‐C||NCM523 are assembled and used to evaluate the commercial prospects of Si–graphite composites, offering highly useful information for researchers working in the battery industry.

show abstract

Multiscale Buffering Engineering in Silicon–Carbon Anode for Ultrastable Li-Ion Storage

Cited by 90 publications

References 57 publications

Dealloying Synthesis of Silicon Nanotubes for High‐Performance Lithium Ion Batteries

Dealloying Synthesis of Silicon Nanotubes for High‐Performance Lithium Ion Batteries

Revisiting the Preparation Progress of Nano‐Structured Si Anodes toward Industrial Application from the Perspective of Cost and Scalability

Simple Designed Micro–Nano Si–Graphite Hybrids for Lithium Storage

Contact Info

Product

Resources

About