Facile synthesis of mesoporous NH4V4O10 nanoflowers with high performance as cathode material for lithium battery

Liu, Yaning; Xu, Maowen; Xu, Maowen; Xia, Zemin; Li, Yuan; Wu, Yi; Li, Qing

doi:10.1007/s10853-017-1619-z

Cited by 29 publications

(16 citation statements)

References 37 publications

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“…For [19,[36][37][38][39][40]. The fast capacity fading upon cycling was mainly attributed to the decrease of lithium ion diffusion coefficient, low conductivity, and structural collapse, which impedes the potential applications [41][42][43].…”

Section: Cyclic Voltammetrymentioning

confidence: 99%

Sucrose-assisted rapid synthesis of multifunctional CrVO4 nanoparticles: a new high-performance cathode material for lithium ion batteries

Shreenivasa

R.T²,

Viswanatha³

et al. 2020

Ionics

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The search of new multifunctional cathode materials, with new crystal structures and compositions, for lithium ion battery is extremely important to mitigate the drawbacks associated with the current electrode materials used in rechargeable lithium ion batteries. In this paper, orthovanadate family CrVO 4 has been identified and investigated as a new cathode material for high-rate and high-capacity lithium ion battery for the first time. A solution-based effective and versatile synthetic protocol has been proposed to synthesize CrVO 4 nanoparticles. Physical characterizations reveal that the prepared CrVO 4 consists of uniform and discreet nanoparticles of crystallite size~19 nm with widespread pore diameter, enhanced conductivity and surface area. The prepared CrVO 4 nanoparticles have been evaluated as a potential cathode material for lithium ion batteries, wherein the experimental results demonstrate enhanced lithium storage with high rate-capability and cyclability. The experimental results reveal that the proposed CrVO 4 is working through a partial conversion reaction mechanism.

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Section: Cyclic Voltammetrymentioning

confidence: 99%

Sucrose-assisted rapid synthesis of multifunctional CrVO4 nanoparticles: a new high-performance cathode material for lithium ion batteries

Shreenivasa

R.T²,

Viswanatha³

et al. 2020

Ionics

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“…Ammonium vanadium bronzes [e.g., NH 4 V 4 O 10 , NH 4 V 3 O 8 , and (NH 4 ) 0.6 V 2 O 5 ] are attractive electrode materials. − When NH 4 + is placed in the interlayer, the structural stability is increased by the N–H···O hydrogen-bonding interaction between the NH 4 cationic and V–O polyanionic layers, which promotes the reversibility of the electrochemical insertion reaction of not only Li + but also other cations such as Na + and Mg 2+ . − …”

Section: Introductionmentioning

confidence: 99%

Ammonium Vanadium Bronze, (NH₄)₂V₇O₁₆, as a New Lithium Intercalation Host Material

Heo

Hyoung

et al. 2020

Inorg. Chem.

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A new type of ammonium vanadium bronze, (NH4)2V7O16, was synthesized by the hydrothermal method. The triclinic crystal structure (P1̅) is successfully identified by the single-crystal X-ray diffraction method. The layered structure is similar to that of other vanadium bronzes but with an unprecedented stoichiometry and crystal structure. The structure is composed of a stack of V7O16 layers along the c axis, and two NH4 + ions occupy the interlayer space per formula unit. Each ammonium ion is hydrogen-bonded to four lattice oxygen atoms, resulting in a stable structure with a large interlayer space, thus enabling the intercalation of various guest ions. Lithium ions are electrochemically intercalated into (NH4)2V7O16, with an initial discharge capacity of 232 mAh g–1 and an average discharge voltage of 2 V (vs Li/Li+). Upon the first discharge, lithium ions are inserted, whereas ammonium ions are extracted. Upon charging, a reverse reaction takes place. However, only a fraction of the extracted ammonium ions are reaccommodated. Despite the small quantity, the reinsertion of ammonium ions contributes crucially to the structural stability, improving the electrochemical performance. These results could provide a general understanding of the intercalation mechanism of host materials containing ammonium ions. In addition, (NH4)2V7O16 intercalates Na+ ions reversibly, implying a potential capability as a host material for other guest ions.

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“…In China, most of the existing thermal management studies of lithium battery packs (LBP) in EV tend to design complex bellows structures, heat pipe structures with added liquid cooling cycles, or use phase change materials to achieve thermal management of LBP [6]. Under certain measurement standards, the maximum temperature increase range of the lithium battery during work and the temperature difference between the lithium battery cells have indeed improved to some extent.…”

Section: Introductionmentioning

confidence: 99%

Analysis and optimization control of finned heat dissipation performance for automobile power lithium battery pack

Feng

2020

THERM SCI

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To cope with the problem of global warming and improve the performance of electric vehicles, the power source of electric vehicles is researched. First, the CFD simulation analysis method is utilized to analyze the heat dissipation effect under the changes of the air intake speed, the number of fins, and the thickness of the fins between lithium batteries. Then, the orthogonal experiment is utilized to select the optimal solution between the lithium batteries. The simulation results show that the heat dissipation effect is optimal under the conditions that the inlet air speed is 8 m/s, the number of fins is seven, and the thickness of fins is 2.5 mm. Then, the orthogonal experiment determines the optimal heat dissipation scheme of the lithium battery pack the air inlet speed is 8 m/s, the number of fins is six, and the thickness of the fins is 2 mm. This optimal scheme can effectively improve the heat dissipation performance of lithium batteries, enhance the performance of electric vehicles, and reduce CO 2 emissions.

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Facile synthesis of mesoporous NH4V4O10 nanoflowers with high performance as cathode material for lithium battery

Cited by 29 publications

References 37 publications

Sucrose-assisted rapid synthesis of multifunctional CrVO4 nanoparticles: a new high-performance cathode material for lithium ion batteries

Sucrose-assisted rapid synthesis of multifunctional CrVO4 nanoparticles: a new high-performance cathode material for lithium ion batteries

Ammonium Vanadium Bronze, (NH₄)₂V₇O₁₆, as a New Lithium Intercalation Host Material

Analysis and optimization control of finned heat dissipation performance for automobile power lithium battery pack

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Facile synthesis of mesoporous NH4V4O10 nanoflowers with high performance as cathode material for lithium battery

Cited by 29 publications

References 37 publications

Sucrose-assisted rapid synthesis of multifunctional CrVO4 nanoparticles: a new high-performance cathode material for lithium ion batteries

Sucrose-assisted rapid synthesis of multifunctional CrVO4 nanoparticles: a new high-performance cathode material for lithium ion batteries

Ammonium Vanadium Bronze, (NH4)2V7O16, as a New Lithium Intercalation Host Material

Analysis and optimization control of finned heat dissipation performance for automobile power lithium battery pack

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Product

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Ammonium Vanadium Bronze, (NH₄)₂V₇O₁₆, as a New Lithium Intercalation Host Material