Cellulose-derived tin-oxide-nanoparticle-embedded carbon fibers as binder-free flexible Li-ion battery anodes

Oh, Seung Ik; Kim, Jae Chan; Kim, Dong Wan

doi:10.1007/s10570-019-02258-7

Cited by 26 publications

(23 citation statements)

References 53 publications

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“…CNC–SnO 2 NF800 composites showed the D-band peak at ~1369 cm −1 and the G-band peak at ~1594 cm −1 , while CNC–SnO 2 NF500 exhibited the D-band peak at ~1361 cm −1 and the G-band peak at ~1591 cm −1 , corresponding to the disordered and graphitic carbon atoms, respectively. These indicated the presence of the carbon formed by the pyrolysis of CNC in the CNC–SnO 2 NF composite and were consistent with previous reports [ 20 , 28 , 29 ]. The composite showed sharp D and G-band peaks because of the high carbonization temperature.…”

Section: Resultssupporting

confidence: 93%

SnO2 Nanoflower–Nanocrystalline Cellulose Composites as Anode Materials for Lithium-Ion Batteries

et al. 2020

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One of the biggest challenges in the commercialization of tin dioxide (SnO2)-based lithium-ion battery (LIB) electrodes is the volume expansion of SnO2 during the charge–discharge process. Additionally, the aggregation of SnO2 also deteriorates the performance of anode materials. In this study, we prepared SnO2 nanoflowers (NFs) using nanocrystalline cellulose (CNC) to improve the surface area, prevent the particle aggregation, and alleviate the change in volume of LIB anodes. Moreover, CNC served not only as the template for the synthesis of the SnO2 NFs but also as a conductive material, after annealing the SnO2 NFs at 800 °C to improve their electrochemical performance. The obtained CNC–SnO2NF composite was used as an active LIB electrode material and exhibited good cycling performance and a high initial reversible capacity of 891 mA h g−1, at a current density of 100 mA g−1. The composite anode could retain 30% of its initial capacity after 500 charge–discharge cycles.

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Section: Resultssupporting

confidence: 93%

SnO2 Nanoflower–Nanocrystalline Cellulose Composites as Anode Materials for Lithium-Ion Batteries

et al. 2020

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“…That was because of the growth state of the SnO 2 nanoparticles. (2) The aggregation of SnO 2 nanoparticles was critical for LIB in terms of cyclability and energy density due to their large volume change during charge/discharge [29,30]. The volume change during lithiation of Sn alloy was more than 300% [31,32].…”

Section: Resultsmentioning

confidence: 99%

Hydrophilic and Conductive Carbon Nanotube Fibers for High-Performance Lithium-Ion Batteries

Cheon

Lee

et al. 2021

Materials

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Carbon nanotube fiber (CNTF) is a highly conductive and porous platform to grow active materials of lithium-ion batteries (LIB). Here, we prepared SnO2@CNTF based on sulfonic acid-functionalized CNTF to be used in LIB anodes without binder, conductive agent, and current collector. The SnO2 nanoparticles were grown on the CNTF in an aqueous system without a hydrothermal method. The functionalized CNTF exhibited higher conductivity and effective water infiltration compared to the raw CNTF. Due to the enhanced water infiltration, the functionalized CNTF became SnO2@CNTF with an ideal core–shell structure coated with a thin SnO2 layer. The specific capacity and rate capability of SnO2@-functionalized CNTF were superior to those of SnO2@raw CNTF. Since the SnO2@CNTF-based anode was free of a binder, conductive agent, and current collector, the specific capacity of the anode studied in this work was higher than that of conventional anodes.

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“…Numerous SnO 2 ‐carbon hybrid materials have been reported, which are partially applicable as freestanding electrodes. The reported examples of freestanding electrodes include SnO 2 embedded into rGO, [ 1,10,11,17–22 ] CNTs, [ 9,23,24 ] CNFs, [ 25–28 ] carbon cloth, [ 5,29–31 ] carbon paper, [ 32 ] or carbon monoliths, [ 33 ] which have been prepared via electrospinning, [ 25 ] vacuum filtration, [ 1,11,19,22,23 ] a combination of in‐situ hydrothermal synthesis and freeze‐drying, [ 10,18 ] hydrothermal synthesis of SnO 2 on a preformed array, [ 5,29,30 ] or electrodeposition [ 32 ] . In contrast to the pure SnO 2 ‐based freestanding electrodes, their doped analogues are much less investigated, although published examples demonstrate the clear benefits of this approach for the electrode performance.…”

Section: Introductionmentioning

confidence: 99%

Overcoming the Challenges of Freestanding Tin Oxide‐Based Composite Anodes to Achieve High Capacity and Increased Cycling Stability

Zoller

Häringer

Böhm

et al. 2021

Adv Funct Materials

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Freestanding electrodes are a promising way to increase the energy density of the batteries by decreasing the overall amount of electrochemically inactive materials. Freestanding antimony doped tin oxide (ATO)‐based hybrid materials have not been reported so far, although this material has demonstrated excellent performance in conventionally designed electrodes. Two different strategies, namely electrospinning and freeze‐casting, are explored for the fabrication of ATO‐based hybrid materials. It is shown that the electrospinning of ATO/carbon based electrodes from polyvinyl pyrrolidone polymer (PVP) solutions was not successful, as the resulting electrode material suffers from rapid degradation. However, freestanding reduced graphene oxide (rGO) containing ATO/C/rGO nanocomposites prepared via a freeze‐casting route demonstrates an impressive rate and cycling performance reaching 697 mAh g−1 at a high current density of 4 A g−1, which is 40 times higher as compared to SnO2/rGO and also exceeds the freestanding SnO2‐based composites reported so far. Antimony doping of the nanosized tin oxide phase and carbon coating are thereby shown to be essential factors for appealing electrochemical performance. Finally, the freestanding ATO/C/rGO anodes are combined with freestanding LiFe0.2Mn0.8PO4/rGO cathodes to obtain a full freestanding cell operating without metal current collector foils showing nonetheless an excellent cycling stability.

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Cellulose-derived tin-oxide-nanoparticle-embedded carbon fibers as binder-free flexible Li-ion battery anodes

Cited by 26 publications

References 53 publications

SnO2 Nanoflower–Nanocrystalline Cellulose Composites as Anode Materials for Lithium-Ion Batteries

SnO2 Nanoflower–Nanocrystalline Cellulose Composites as Anode Materials for Lithium-Ion Batteries

Hydrophilic and Conductive Carbon Nanotube Fibers for High-Performance Lithium-Ion Batteries

Overcoming the Challenges of Freestanding Tin Oxide‐Based Composite Anodes to Achieve High Capacity and Increased Cycling Stability

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