Si-based anode with hierarchical protective function and hollow ring-like carbon matrix for high performance lithium ion batteries

Chen, Hedong; Shen, Kaixiang; Hou, Xianhua; Zhang, Guangzu; Wang, Shaofeng; Chen, Fuming; Fu, Lijun; Qin, Haiqing; Xia, Yingchun; Zhou, Guofu

doi:10.1016/j.apsusc.2018.11.065

Cited by 59 publications

(21 citation statements)

References 46 publications

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“…The average pore size of around 18 nm and a specific surface area of 185.2 m 2 g −1 could be calculated by BET measurement (Figure d and Figure S5). HRTEM image explicitly illustrated the detailed microstructure feature of silicon‐containing nanofibers (Figure e), where the lattice spacing of 0.31 nm was no different with special lattice plane (111) of silicon (top‐right inset in Figure e) . Between carbon outer‐layer and silicon core, a thin amorphous interlayer was inerrably ascertained with a thickness of about 3 nm.…”

Section: Resultsmentioning

confidence: 91%

Porous Si@SiO_x@N‐Rich Carbon Nanofibers as Anode in Lithium‐Ion Batteries under High Temperature

Xia

Huang

et al. 2019

ChemElectroChem

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A facile electrospinning technique followed by pre‐oxidation and carbonization treatment is adopted to synthesize silicon anode cladded with SiOx layer and N‐rich carbon nanofibers (Si@SiOx@NCNFs), in which post‐used polyacrylonitrile (PAN) yarn is chosen as single carbon source. As anode in Li‐ion batteries, elaborately designed Si@SiOx@NCNFs renders remarkable reversible capacities of 1045 mA h g−1 at the 500th cycle under a current density of 8 A g−1 at 80°C, and 828 mA h g−1 after subsequent 500 cycles at 15 A g−1, mainly ascribed to the distinct hierarchical structure, N‐rich nature and enhanced pesudocapacitive behavior. When Si@SiOx@NCNFs is matched with commercial cathode LiFePO4, full cell delivers a stable capacity of 140 mA h g−1 at 100 mA g−1, accompanying with an energy density of 455 Wh kg−1 at 50 °C. These conspicuous features undoubtedly enable Si@SiOx@NCNFs to be promising anode materials for high‐power lithium‐ion battery used in harsh conditions.

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Section: Resultsmentioning

confidence: 91%

Porous Si@SiO_x@N‐Rich Carbon Nanofibers as Anode in Lithium‐Ion Batteries under High Temperature

Xia

Huang

et al. 2019

ChemElectroChem

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“…This includes controlling the cycling voltage window, optimizing the design/Si structure, Si particle distributions in a matrix, making use of designer (polymeric binders of various functionalities, electrolyte and conductive additives, salt anions, etc. ), prelithiation, Li compensation by utilizing Li‐rich cathodes, and surface/interface engineering/treatment/modification …”

Section: Introductionmentioning

confidence: 99%

Confronting the Challenges of Next‐Generation Silicon Anode‐Based Lithium‐Ion Batteries: Role of Designer Electrolyte Additives and Polymeric Binders

2019

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Silicon has emerged as the next‐generation anode material for high‐capacity lithium‐ion batteries (LIBs). It is currently of scientific and practical interest to encounter increasingly growing demands for high energy/power density electrochemical energy‐storage devices for use in electric vehicles (xEVs), renewable energy sources, and smart grid/utility applications. Improvements to existing conventional LIBs are required to provide higher energy, longer cycle lives. This is attributed to its unparalleled theoretical capacity (4200 mAh g−1 for Li4.4Si), which is approximately 10 times higher than that of a state‐of‐the‐art graphitic anode (372 mAh g−1 for LiC6), with a suitable operating voltage, natural abundance, environmental benignity, nontoxicity, high safety, and so forth. However, despite the overwhelming beneficial features, the practical integration of LIBs containing a silicon anode beyond the commercial niche is hampered by unavoidable challenges, such as excessive volume changes during the (de‐)alloying process, inherently low electrical and ionic conductivities, an unstable solid–electrolyte interphase, and electrolyte drying out. Among various extenuating strategies, non‐electrode factors encompassing electrolyte additives and polymeric binders are regarded as the most economical, and effective approaches towards circumventing these disadvantages are in short supply. With the aim of providing an in‐depth insight into rapidly growing accounts of electrolyte additives and binders for use with silicon anode‐based LIBs, this Review assesses the current state of the art of research and thereby examines opportunities to open up new avenues for the practical realization of these silicon anode‐based LIBs.

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“…Because of superior features of high energy density, high out‐put voltage, low memory effect and long cycle life, lithium‐ion batteries (LIBs) have been widely applied in portable electronics devices, drones, robots, and electric vehicles [9–12] . Despite the rapid development of lithium‐ion batteries, some technical obstacles still need to be overcome to achieve widespread applications, including low power density and high cost, which cannot meet future energy‐related market's needs [13–16] . Energy density of LIBs is determined by the theoretical capacity and out‐put voltage.…”

Section: Introductionmentioning

confidence: 99%

“…[9][10][11][12] Despite the rapid development of lithium-ion batteries, some technical obstacles still need to be overcome to achieve widespread applications, including low power density and high cost, which cannot meet future energy-related market's needs. [13][14][15][16] Energy density of LIBs is determined by the theoretical capacity and out-put voltage. From the view of material science, all components of LIBs, including anode, cathode, and separator, need to be improved to break through the limitations of current technology and enhance the energy density, rate performance and cycling stability.…”

Section: Introductionmentioning

confidence: 99%

Progress and Perspective of Metal‐ and Covalent‐Organic Frameworks and their Derivatives for Lithium‐Ion Batteries

Cui

Dong

Chen

et al. 2020

Batteries & Supercaps

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Metal–organic frameworks (MOFs) or covalent–organic frameworks (COFs) have gained increasing attentions due to their high surface area, tunable structure, highly ordered pores and functional composition. Besides their applications in gas adsorption and separation, hydrogen storage, optics, magnetism and drug delivery, they have been widely employed as cathodes, anodes and separators for the research and development in lithium‐ion batteries (LIBs) due to the tunable structure, multi‐electron transfer, short pathway, and robust structural stability, etc. This review summarizes the general applied strategies and cases of MOF, COF and their composites as well as derivatives in LIBs. Compared to inorganic materials, the advantages of MOF/COF materials have made it possible to witness various successful cases with enhanced electrochemical performances. Moreover, this review provides some guidance for the controllable preparation and modification of MOF‐ and COF‐derived nanostructures through molecular engineering, rational design, and doping, as well as functional group modifications. In addition, we highlight timely progresses of the application of organic frameworks in LIBs, and also summarize many strategies of MOF/COF materials and their derivatives on enhancing the energy density, diffusion coefficient, rate performance and cycling stability for next‐generation LIBs with attractive features of high energy density, good rate performance, and superior cyclability.

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Si-based anode with hierarchical protective function and hollow ring-like carbon matrix for high performance lithium ion batteries

Cited by 59 publications

References 46 publications

Porous Si@SiO_x@N‐Rich Carbon Nanofibers as Anode in Lithium‐Ion Batteries under High Temperature

Porous Si@SiO_x@N‐Rich Carbon Nanofibers as Anode in Lithium‐Ion Batteries under High Temperature

Confronting the Challenges of Next‐Generation Silicon Anode‐Based Lithium‐Ion Batteries: Role of Designer Electrolyte Additives and Polymeric Binders

Progress and Perspective of Metal‐ and Covalent‐Organic Frameworks and their Derivatives for Lithium‐Ion Batteries

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Si-based anode with hierarchical protective function and hollow ring-like carbon matrix for high performance lithium ion batteries

Cited by 59 publications

References 46 publications

Porous Si@SiOx@N‐Rich Carbon Nanofibers as Anode in Lithium‐Ion Batteries under High Temperature

Porous Si@SiOx@N‐Rich Carbon Nanofibers as Anode in Lithium‐Ion Batteries under High Temperature

Confronting the Challenges of Next‐Generation Silicon Anode‐Based Lithium‐Ion Batteries: Role of Designer Electrolyte Additives and Polymeric Binders

Progress and Perspective of Metal‐ and Covalent‐Organic Frameworks and their Derivatives for Lithium‐Ion Batteries

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Product

Resources

About

Porous Si@SiO_x@N‐Rich Carbon Nanofibers as Anode in Lithium‐Ion Batteries under High Temperature

Porous Si@SiO_x@N‐Rich Carbon Nanofibers as Anode in Lithium‐Ion Batteries under High Temperature