Design and synthesis of tube-in-tube structured NiO nanobelts with superior electrochemical properties for lithium-ion storage

Oh, Se Hwan; Park, Jin-Sung; Jo, Min Su; Kang, Yun Chan; Cho, Jung Sang

doi:10.1016/j.cej.2018.04.156

Cited by 58 publications

(18 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…7a. In the first cathodic scan, a reduction peak was observed at approximately 0.64 V attributing to the initial reduction of NiO to Ni accompanied by the formation of amorphous Li 2 O and the decomposition of the electrolyte to form an SEI [24,[49][50][51]. The relatively weak peak at 0.51 V can be attributed to structural destruction and was not observed in the subsequent scans [49].…”

Section: Evaluation Of Li-ion Storage Performancementioning

confidence: 97%

“…5e, f) further confirmed the complete conversion of Ni into NiO in the CYS-NiO/C microsphere. The lattice fringes separated by a gap of 0.21 nm corresponded to the (200) crystal plane of cubic NiO [24,41]. The elemental mapping image of CYS-NiO/C (Fig.…”

Section: Synthesis Of Nio/c Microspheresmentioning

confidence: 98%

“…The reduction peaks shifted to higher potentials from the second cycle onwards because of the formation of ultrafine NiO nanocrystals during cycling [24,51]. In the anodic scan, from the first cycle onwards, two broad peaks were observed at 1.29 and 2.18 V corresponding to the dissolution of the organic SEI layer and the subsequent oxidation of the Ni nanocrystals into NiO along with the decomposition of Li 2 O [24,[49][50][51]. The excellent reversibility of the discharge-charge process described by the reaction: NiO + 2Li + + 2e − ↔ Ni + Li 2 O , was ensured by the overlapped CV profiles in Fig.…”

Section: Evaluation Of Li-ion Storage Performancementioning

confidence: 99%

“…An extra reduction peak was observed at 1.1 V in the first cathodic scan because of the decomposition of the electrolyte and the formation of SEI films [52]. The CV curve of the hollow NiO microsphere exhibited a sharp reduction peak at approximately 0.48 V owing to the formation of amorphous Li 2 O and the SEI and the reduction of NiO into Ni [24,[49][50][51]. Among the samples, the CYS-NiO/C microspheres showed a high-potential reduction peak in the first cathodic scan, indicating that their Li + -ion lithiation/delithiation reactions proceeded readily.…”

Section: Evaluation Of Li-ion Storage Performancementioning

confidence: 99%

“…However, the drastic capacitance fading of TMOs owing to their large volume expansion during cycling has hindered their application as LIB anodes [17][18][19][20][21]. Therefore, various TMO nanostructures including nanoparticles, nanowalls, nanotubes, nanofibers, and nanoflakes have been extensively studied [22][23][24][25][26][27][28]. Recently, the yolk-shell structure materials have been used to improve the anode performance of LIBs [29][30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Coral-Like Yolk–Shell-Structured Nickel Oxide/Carbon Composite Microspheres for High-Performance Li-Ion Storage Anodes

Ghosh

Jeong

et al. 2019

Nano-Micro Lett.

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Evaluation Of Li-ion Storage Performancementioning

confidence: 97%

Section: Synthesis Of Nio/c Microspheresmentioning

confidence: 98%

Section: Evaluation Of Li-ion Storage Performancementioning

confidence: 99%

Section: Evaluation Of Li-ion Storage Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Coral-Like Yolk–Shell-Structured Nickel Oxide/Carbon Composite Microspheres for High-Performance Li-Ion Storage Anodes

Ghosh

Jeong

et al. 2019

Nano-Micro Lett.

Self Cite

View full text Add to dashboard Cite

show abstract

High Performance Flexible Lithium‐Ion Battery Electrodes: Ion Exchange Assisted Fabrication of Carbon Coated Nickel Oxide Nanosheet Arrays on Carbon Cloth

Chen

Tao

et al. 2021

Adv Funct Materials

View full text Add to dashboard Cite

Transition metal oxides (TMOs)‐based anode materials of high theoretical capacities have been intensively studied for lithium‐ion storage. However, their poor high‐rate capability and cycling stability remain to be effectively resolved. Herein, a novel ion exchange (IE)‐assisted indirect carbon coating strategy is proposed to realize high performance freestanding TMO‐based anodes for flexible lithium‐ion batteries (FLIBs). This approach effectively avoids the possible side reaction of oxide reduction, enhances degrees of graphitization of the carbon coating, and preserves advantageous nanostructure of the starting template, leading to enhanced electrical conductivities, alleviated volume variation induced structural instability, fast lithium‐ion diffusion pathways and enhanced electron transfer kinetics. As a proof of concept, IE‐prepared carbon coated NiO nanosheet arrays with excellent structural and electrochemical stability are developed as freestanding anodes for LIBs and FLIBs, which exhibit outstanding electrochemical performances superior to most state‐of‐the‐art NiO‐based anodes reported in recent years. The product anode delivers a high areal capacity (3.08 mAh cm−2 at 0.25 mA cm−2), outstanding high‐rate capability (1.78 mAh cm−2 at 8 mA cm−2) and excellent cycling stability (over 300 cycles). Further pouch cell tests confirm the excellent flexibility of the freestanding electrode against mechanical deformation with well‐maintained electrochemical performance under folding.

show abstract

Carbon/Binder‐Free NiO@NiO/NF with In Situ Formed Interlayer for High‐Areal‐Capacity Lithium Storage

Shi

Wang

et al. 2019

Advanced Energy Materials

View full text Add to dashboard Cite

Achieving high areal capacity is a challenge for current lithium‐ion batteries (LIBs). To address this issue, nickel foam (NF), as a free‐standing skeleton suffers from long‐term poor anchor ability for active materials, resulting in detachment from conductive substrates. In addition, the weighty NF damages the overall energy density of the electrode. Herein, an in situ fabrication of interlayer strategy is proposed to effectively address these issues through constructing layer‐by‐layer a 3D structure composed of an inner conductive framework, medial NiO layer, and outer few‐layer NiO nanoflowers in turn (NiO@NiO/NF). The interlayer derived from partial oxidation of NF not only reinforces the attachment of the active layer on NF but also contributes capacity to the whole electrode, leading to excellent stability and areal capacity. When used as the anode of LIBs, ultrahigh reversible capacity of 1.98 mAh cm−2 is delivered at 1.20 mA cm−2. The electrode still maintains good integrity and flexibility after 1000 cycles, showing good structure stability. Compared with previous reports, NiO@NiO/NF is one of the most outstanding NiO‐based electrodes. This work proposes a feasible strategy to enhance the capacity and stability of self‐supporting electrodes, and opens a new avenue for high‐areal‐capacity anode of LIBs.

show abstract

Design and synthesis of tube-in-tube structured NiO nanobelts with superior electrochemical properties for lithium-ion storage

Cited by 58 publications

References 55 publications

Coral-Like Yolk–Shell-Structured Nickel Oxide/Carbon Composite Microspheres for High-Performance Li-Ion Storage Anodes

Coral-Like Yolk–Shell-Structured Nickel Oxide/Carbon Composite Microspheres for High-Performance Li-Ion Storage Anodes

High Performance Flexible Lithium‐Ion Battery Electrodes: Ion Exchange Assisted Fabrication of Carbon Coated Nickel Oxide Nanosheet Arrays on Carbon Cloth

Carbon/Binder‐Free NiO@NiO/NF with In Situ Formed Interlayer for High‐Areal‐Capacity Lithium Storage

Contact Info

Product

Resources

About