An interlayer nanostructure of rGO/Sn2Fe-NRs array/rGO with high capacity for lithium ion battery anodes

Wang, Chenxiang; Wang, Jie; Chen, Hanxing; Wen, Ming; Xing, Ke; Chen, Shipei; Wu, Qingsheng

doi:10.1007/s40843-016-5086-7

Cited by 15 publications

(7 citation statements)

References 36 publications

(23 reference statements)

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“…For the construction of carbon–noncarbon hybrid electrode materials for LIBs, the interfacial design and the carbon–noncarbon interaction model following assembly of the active materials into various kinds of carbon matrix (such as CNTs [ 79 ], graphene sheets [ 80 ], amorphous carbon layers [ 81 ], or graphitic carbon [ 82 ]), greatly influence charge transport and the structural stability of the hybrid. For a battery, fast electron transport is a vital factor for high electrical performance.…”

Section: Enhanced Roles Of Carbon Architectures In Libsmentioning

confidence: 99%

Enhanced Roles of Carbon Architectures in High-Performance Lithium-Ion Batteries

et al. 2019

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HIGHLIGHTS • Assembly strategies that reinforce the roles of carbon architectures as active materials, electrochemical reaction frameworks, and current collectors in high-energy and high-power lithium-ion batteries are summarized. • To enhance structural stability and volumetric performance, the rational design of carbon architectures for high-capacity noncarbons in terms of the interface, network skeleton, void space, and densification, is discussed in detail. • Designing carbon cages that protect the electroactive noncarbon is highlighted as a promising strategy that solves the challenges associated with future high-capacity noncarbon anode construction. ABSTRACT Lithium-ion batteries (LIBs), which are high-energydensity and low-safety-risk secondary batteries, are underpinned to the rise in electrochemical energy storage devices that satisfy the urgent demands of the global energy storage market. With the aim of achieving high energy density and fast-charging performance, the exploitation of simple and low-cost approaches for the production of high capacity, high density, high mass loading, and kinetically ion-accessible electrodes that maximize charge storage and transport in LIBs, is a critical need. Toward the construction of high-performance electrodes, carbons are promisingly used in the enhanced roles of active materials, electrochemical reaction frameworks for high-capacity noncarbons, and lightweight current collectors. Here, we review recent advances in the carbon engineering of electrodes for excellent electrochemical performance and structural stability, which is enabled by assembled carbon architectures that guarantee sufficient charge delivery and volume fluctuation buffering inside the electrode during cycling. Some specific feasible assembly methods, synergism between structural design components of carbon assemblies, and electrochemical performance enhancement are highlighted. The precise design of carbon cages by the assembly of graphene units is potentially useful for the controlled preparation of high-capacity carbon-caged noncarbon anodes with volumetric capacities over 2100 mAh cm −3. Finally, insights are given on the prospects

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Section: Enhanced Roles Of Carbon Architectures In Libsmentioning

confidence: 99%

Enhanced Roles of Carbon Architectures in High-Performance Lithium-Ion Batteries

et al. 2019

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“…Perkembangan terbaru menunjukkan bahwa untuk meningkatkan unjuk kerja baterai ion litium terutama konduktivitas listrik, tidak hanya mencampurkan bahan berkonduktivitas tinggi saja, namun juga ditentukan oleh cara, konstruksi dan arsitektur yang dibangun oleh berbagai bahan secara kompleks, bahkan sampai pada skala nanometer [32][33][34][35][36][37][38][39][40][41][42][43][44].…”

Section: Pendahuluanunclassified

Kajian Aplikasi Bahan Dengan Konduktivitas Listrik Tinggi Untuk Meningkatkan Unjuk Kerja Baterai Ion Litium

Rahardi

2017

JTBBT

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Kajian teknologi bahan baterai ion litium ditujukan untuk mempelajari pengaruh bahan berkonduktivitas listrik yang tinggi, struktur bahan dan konstruksi komposit terhadap peningkatan secara nyata unjuk kerja baterai ion litium. Strategi intrinsik dan ekstrinsik dapat ditempuh untuk mencapai tujuan ini. Perkembangan teknologi secara umum menunjukkan kecenderungan bahwa rekayasa bahan aktif bermorfologi memanjang, penggunaan karbon khusus seperti carbon nanotubes dan graphene, dan nanokomposit memberikan dampak nyata terhadap unjuk kerja baterai ion litium.Kata kunci : baterai ion litium, konduktivitas listrik

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“…Among various metal oxides, Fe 3 O 4 is quite promising as the negative material in LICs for its advantages of high theoretical capacity (926 mA h g −1 ), relatively low voltage plateau, eco-friendliness, natural abundance and low cost [28,29]. Nevertheless, there are rare reports about the use of Fe 3 O 4 in LICs, probably due to the poor rate performance and cycle stability, which mainly result from its low intrinsic electronic conductivity, severe aggregation and dramatic volume expansion during Li insertion [19,[30][31][32]. Hence, to optimize the performance of LICs, the modification of Fe 3 O 4 materials has become a crucial issue.…”

Section: Introductionmentioning

confidence: 99%

Iron oxide encapsulated in nitrogen-rich carbon enabling high-performance lithium-ion capacitor

Zhou

Kang

et al. 2020

Sci. China Mater.

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Lithium-ion capacitors (LICs) could combine the virtues of high power capability of conventional supercapacitors and high energy density of lithium-ion batteries. However, the lack of high-performance electrode materials and the kinetic imbalance between the positive and negative electrodes are the major challenge. In this study, Fe 3 O 4 nanoparticles encapsulated in nitrogen-rich carbon (Fe 3 O 4 @NC) were prepared through a self-assembly of the colloidal FeOOH with polyaniline (PANI) followed by pyrolysis. Due to the well-designed nanostructure, conductive nitrogen-rich carbon shells, abundant micropores and high specific surface area, Fe 3 O 4 @NC-700 delivers a high capacity, high rate capability and long cycling stability. Kinetic analyses of the redox reactions reveal the pseudocapacitive mechanism and the feasibility as negative material in LIC devices. A novel LIC was constructed with Fe 3 O 4 @NC-700 as the negative electrode and expanded graphene (EGN) as the positive electrode. The wellmatched two electrodes effectively alleviate the kinetic imbalance between the positive and negative electrodes. As a result, Fe 3 O 4 @NC-700//EGN LIC exhibits a wide operating voltage window, and thus achieves an ultrahigh energy density of 137.5 W h kg −1. These results provide fundamental insights into the design of pseudocapacitive electrode and show future research directions towards the next generation energy storage devices.

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An interlayer nanostructure of rGO/Sn2Fe-NRs array/rGO with high capacity for lithium ion battery anodes

Cited by 15 publications

References 36 publications

Enhanced Roles of Carbon Architectures in High-Performance Lithium-Ion Batteries

Enhanced Roles of Carbon Architectures in High-Performance Lithium-Ion Batteries

Kajian Aplikasi Bahan Dengan Konduktivitas Listrik Tinggi Untuk Meningkatkan Unjuk Kerja Baterai Ion Litium

Iron oxide encapsulated in nitrogen-rich carbon enabling high-performance lithium-ion capacitor

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