A surface-engineering-assisted method to synthesize recycled silicon-based anodes with a uniform carbon shell-protective layer for lithium-ion batteries

Shi, Jian; Jiang, Xuesong; Sun, Jifei; Ban, Boyuan; Li, Jingwei; Chen, Jian

doi:10.1016/j.jcis.2020.11.105

Cited by 47 publications

(21 citation statements)

References 79 publications

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“…R CT is relevant to charge transfer resistance between the reactive substances, and Z w means the speed of Li + diffusion. [35] After 50 cycles at 100 mA g À 1 , the R CT of the four electrode materials decreased significantly. The reason is that the absence of electrolyte soaking before cycling results in a large R CT value.…”

Section: Resultsmentioning

confidence: 94%

Fe₂O₃/NiMoO₄ Heterostructured Microspheres as an Anode Material for Long‐Life and High‐Performance Lithium Storage

Yang

Jiang

et al. 2021

ChemElectroChem

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Fe 2 O 3 /NiMoO 4 heterostructured microspheres were prepared by a two-step hydrothermal method followed by calcination. The Fe 2 O 3 component in the composite is evolved from FeMoO 4 , which inherits the advantage of high capacity of FeMoO 4 . The heterogeneous structure of the microspheres can enlarge the contact area between the active material and electrolyte so as to reduce the charge transfer resistance. When applied to the anode of lithium-ion battery, the material shows distinguished lithium storage performance and mechanical robustness, benefiting from the high capacity of Fe 2 O 3 and good stability of NiMoO 4 . Moreover, the voids on the surface of the material effectively buffer the volume effect during the repeated cycling. The specific capacity of the composite can reach 1063 mA h g À 1 and 584 mA h g À 1 after 460 and 420 cycles at 300 mA g À 1 and 2 A g À 1 , respectively. The improvement of the electrochemical performance is attributed to the unique structural characteristics and synergistic effect of its heterogeneous phases.

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Section: Resultsmentioning

confidence: 94%

Fe₂O₃/NiMoO₄ Heterostructured Microspheres as an Anode Material for Long‐Life and High‐Performance Lithium Storage

Yang

Jiang

et al. 2021

ChemElectroChem

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“…Figure 8a displays the initial five cyclic voltammetry profiles carried out between 3.0 and 4.6 V. It can be observed that both DR-LCO and DR-D-0.5% cathodes show similar redox peaks in the first cyclic voltammetry profile, and the peak positions are quite different. 31 However, there are obvious differences from the second phase transition peak, and several pairs of obvious redox peaks appear in DR-LCO (H1/H2 ≈ 3.95 V; H1/H2 ≈ 3.95 V; H2/M1 ≈ 4.11 V; M1/H3 ≈ 4.25 V). In DR-D-0.5%, there are only two redox peaks (H1/H2 ≈ 4.02 V; H3/M2 ≈ 4.58 V).…”

Section: Resultsmentioning

confidence: 99%

Dual-Function Regeneration of Waste Lithium Cobalt Oxide for Stable High Voltage Cycle Performance

Fei

Zhang

Meng

et al. 2021

ACS Sustainable Chem. Eng.

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With the development of society and increased demand for clean energy, as an efficient energy storage device, lithium-ion batteries are widely used in various fields. As they fail, a large number of waste lithium-ion batteries will be produced. If not handled properly, it will not only cause the loss of nonferrous metals but also cause serious environmental pollution. This article proposes a new concept of using waste lithium-ion battery material to directly reuse it for the next generation of secondary batteries. It is a new strategy to prepare a dual-function regeneration material by direct regeneration technology, which is not limited to the traditional idea of valuable metal recovery, and solve the problem of raw material source and waste recycling of the new battery system. Waste lithium cobaltite cathode powder was used to supplement the metal ions Li+, Mg2+, and Ce4+ for heat treatment. The demand of direct regeneration and synergistic modification was achieved in a green and efficient way. The discharge capacity of the material is 226.346 mAh/g at 4.6 V. In this study, the dual-function regeneration strategy is expected to accelerate the industrialization process of waste lithium-ion batteries.

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“…It is obvious that resistances of Sn@Mn 2 SnO 4 -NC electrode are smaller than those of Sn@SnO 2 -NC. This result indicates that the Sn@Mn 2 SnO 4 -NC electrode possesses enhanced conductivity and effective charge transfer, which lead to the improvement of electrochemical performance . It is well known that the SEI has an important impact on the electrochemical kinetics of anode materials.…”

Section: Results and Discussionmentioning

confidence: 99%

“…This result indicates that the Sn@Mn 2 SnO 4 -NC electrode possesses enhanced conductivity and effective charge transfer, which lead to the improvement of electrochemical performance. 48 It is well known that the SEI has an important impact on the electrochemical kinetics of anode materials. To get insight into the detailed chemical components of the SEI film on the Sn@Mn 2 SnO 4 -NC electrode, the XPS tests after one cycle lithiation were required (Figure S13a 2.3.…”

Section: Resultsmentioning

confidence: 99%

Binary-Metal Mn₂SnO₄ Nanoparticles and Sn Confined in a Cubic Frame with N-Doped Carbon for Enhanced Lithium and Sodium Storage

Wan

Liu

Cheng

et al. 2021

ACS Appl. Mater. Interfaces

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Sn-based materials have been popularly researched as anodes for energy storage due to their high theoretical capacity. However, the sluggish reaction kinetics and unsatisfied cycling stability caused by poor conductivity and dramatic volume expansion are still pivotal barriers for the development of Sn-based materials as anodes. In this work, the binary-metal Mn2SnO4 nanoparticles and Sn encapsulated in N-doped carbon (Sn@Mn2SnO4-NC) were fabricated by multistep reactions and employed as the anode for lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs). The coexistence of binary metals (Sn and Mn) can improve intrinsic conductivity. Simultaneously, hollow architecture along with carbon relieves internal stress and prevents structural collapse. A Sn@Mn2SnO4-NC anode delivers an appealing capacity of 1039.5 mAh g–1 for 100 cycles at 100 mA g–1 and 823.8 mAh g–1 for 600 cycles at 1000 mA g–1 in LIBs. When evaluated as an anode in SIBs, the Sn@Mn2SnO4-NC anode tolerates up to 7000 cycles at 2000 mA g–1 and maintains a capacity of 185.8 mAh g–1. Quantified kinetic investigations demonstrate the high contribution of pseudocapacitive effects during the cycle process. Furthermore, density functional theory (DFT) calculations further verify that introduction of the second metal (Mn) improves the conductivity of the material, which is favorable for charge transport. This work is expected to provide a feasible preparation strategy for binary-metal materials to enhance the performance of lithium- and sodium-ion batteries.

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A surface-engineering-assisted method to synthesize recycled silicon-based anodes with a uniform carbon shell-protective layer for lithium-ion batteries

Cited by 47 publications

References 79 publications

Fe₂O₃/NiMoO₄ Heterostructured Microspheres as an Anode Material for Long‐Life and High‐Performance Lithium Storage

Fe₂O₃/NiMoO₄ Heterostructured Microspheres as an Anode Material for Long‐Life and High‐Performance Lithium Storage

Dual-Function Regeneration of Waste Lithium Cobalt Oxide for Stable High Voltage Cycle Performance

Binary-Metal Mn₂SnO₄ Nanoparticles and Sn Confined in a Cubic Frame with N-Doped Carbon for Enhanced Lithium and Sodium Storage

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A surface-engineering-assisted method to synthesize recycled silicon-based anodes with a uniform carbon shell-protective layer for lithium-ion batteries

Cited by 47 publications

References 79 publications

Fe2O3/NiMoO4 Heterostructured Microspheres as an Anode Material for Long‐Life and High‐Performance Lithium Storage

Fe2O3/NiMoO4 Heterostructured Microspheres as an Anode Material for Long‐Life and High‐Performance Lithium Storage

Dual-Function Regeneration of Waste Lithium Cobalt Oxide for Stable High Voltage Cycle Performance

Binary-Metal Mn2SnO4 Nanoparticles and Sn Confined in a Cubic Frame with N-Doped Carbon for Enhanced Lithium and Sodium Storage

Contact Info

Product

Resources

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Fe₂O₃/NiMoO₄ Heterostructured Microspheres as an Anode Material for Long‐Life and High‐Performance Lithium Storage

Fe₂O₃/NiMoO₄ Heterostructured Microspheres as an Anode Material for Long‐Life and High‐Performance Lithium Storage

Binary-Metal Mn₂SnO₄ Nanoparticles and Sn Confined in a Cubic Frame with N-Doped Carbon for Enhanced Lithium and Sodium Storage