Metal–Organic Frameworks (MOFs) as Sandwich Coating Cushion for Silicon Anode in Lithium Ion Batteries

Han, Young‐Kyu; Qi, Pengfei; Zhou, Junwen; Feng, Xiao; Li, Siwu; Fu, Xiaotao; Zhao, Jingshu; Yu, Danni; Wang, Bo

doi:10.1021/acsami.5b08109

Cited by 79 publications

(54 citation statements)

References 35 publications

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“…Zeolitic imidazolate framework (ZIF-8), a kind of nitrogen-containing MOFs, combines high stability of inorganic zeolite with high surface area and porosity, and is a good precursor for preparing carbon matrices to enhance cycling stability of some electrode materials for LIBs [ 41 – 43 ]. For example, Si@ZIF8 composites were prepared by Han et al [ 44 ] via in situ mechanochemical synthesis, which shows superior electrochemical properties with lithium storage capacity up to 1050 mAh g −1 and excellent cycle stability (> 99% capacity retention after 500 cycles).…”

Section: Introductionmentioning

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.

120

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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.

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Section: Introductionmentioning

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.

120

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“…An introduced MOF SEI can address these issues by preventing electrolyte decomposition, promoting ion transport, and accommodating volumetric changes. For example, there are several reports of using MOF coatings on Si anodes in LIBs 95,96 . The addition of the MOF coating improved cyclability by offering a protective "cushion" for volume expansion as well as by lowering the cell resistances and promoting ion conduction in the electrolyte-filled MOF.…”

Section: Promising Future Directionsmentioning

confidence: 99%

Metal-organic framework functionalization and design strategies for advanced electrochemical energy storage devices

et al. 2019

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Metal-organic frameworks (MOFs) are a class of porous materials with unprecedented chemical and structural tunability. Their synthetic versatility, long-range order, and rich host-guest chemistry make MOFs ideal platforms for identifying design features for advanced functional materials. This review addresses synthetic approaches to control MOF attributes for realizing material properties such as charge conductivity, stability, surface area, and flexibility. Along with an updated account on MOFs employed in batteries and supercapacitors, new directions are outlined for advancing MOF research in emergent technologies such as solid-state electrolytes and battery operation in extreme environments. G lobal demands for clean energy storage and delivery continue to push developing technology to its limits. Batteries and supercapacitors are among the most promising technologies for electrical energy storage owing to their portability and compact size for on-demand usage. Despite their promise, chemical and physical limitations of existing materials hinder performance and require new, creative solutions. For instance, polymers and conductive carbon materials are relatively inexpensive, scalable, and synthetically tunable but can lack physical and chemical stability for device implementation. On the other hand, solid inorganic materials, such as metal oxides and silicon, are used as electrode materials due to their robust structure and redox-active sites. However, sluggish ion diffusion of metal oxides limit charge/ discharge rate capabilities and large volumetric changes lead to mechanical instability. Drawbacks in these current platforms motivate the discovery and development of new materials for advanced energy storage devices. Metal-organic frameworks (MOFs) are attractive candidates to meet the needs of nextgeneration energy storage technologies. MOFs are a class of porous materials composed of metal nodes and organic linkers. Their modular nature allows for great synthetic tunability, affording both fine chemical and structural control. With creative synthetic design, properties such as porosity, stability, particle morphology, and conductivity can be tailored for specific applications. As the needs of each energy storage device are different, this synthetic versatility of MOFs provides a method to optimize materials properties to combat inherent electrochemical

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“…An Si/SiO 2 ‐ordered‐mesoporous carbon (Si/SiO 2 −OMC) nano composite displayed superior reversible capacity (958 mAh g −1 at 0.2 A g −1 after 100 cycles) . In addition, the large specific surface area and pore area of the metal‐organic framework can effectively absorb the electrolyte, and provide a faster diffusion channel for lithium ions to improve the rate performance . The carbon in the Core‐shell Si/SiOx@NC composite is a porous carbon material based on a metal‐organic framework.…”

Section: Silicon‐based Composite Materialsmentioning

confidence: 99%

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

Hou

Yang

2020

ChemNanoMat

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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

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Metal–Organic Frameworks (MOFs) as Sandwich Coating Cushion for Silicon Anode in Lithium Ion Batteries

Cited by 79 publications

References 35 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

Metal-organic framework functionalization and design strategies for advanced electrochemical energy storage devices

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

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