Electrochemical Patterning of Cu Current Collectors: An Enabler for Pure Silicon Anodes in High‐Energy Lithium‐Ion Batteries

specific capacity owing to their volume expansion during discharge/charge process. [13] Previous studies have demonstrated that the surface of the selenides can be covered with carbon materials to improve electrochemical property. Li et al. [14] reported the preparation of FeSe carbon composite materials by selenization of Prussian blue analogue (PBs) in N-doped porous carbon. The composite shows the superiority in structure, which can provide an effective channel for charge transfer. Besides, the bimetallic synergistic effect is also one of the effective ways to optimize the electrochemical property of the composite materials. Especially, the bimetallic heterogeneous interface can accelerate the diffusion rate of ions (Na + /K + ) and increase the pseudocapacitance of the electrode material. For example, Li et al. [15] prepared the NiCo 2 Se 4 /N-doped porous carbon nanocubes (NiCo 2 Se 4 @NPC) by derived bimetallic Ni/Co-ZIF-67. The NiCo 2 Se 4 @NPC nanocubes can provide a specific discharge capacity of 462.1 mAh g −1 at 0.1 A g −1 , and even at 2.0 A g −1 , the discharge capacity of the nanoparticles can reach 372 mAh g −1 for SIBs. Ge et al. [16] had investigated multiple metal elements (Co, Ni, Mn) doped PBs structure. Among them, the binary Ni 0.67 Fe 0.33 Se 2 can maintain the ultralong-term stability of 375 mAh g −1 even at 10.0 A g −1 after 10 000 cycles. Furthermore, the heterostructured bimetallic sulfides can inherit the synergistic advantage and the heterointerface advantage, which can offer rich chemical sites for reduction-oxidation of Na + /K + , thereby showing enhanced sodium/potassium storage performance. [17] However, the sluggish reaction kinetics and poor cycling stability of metallic compound of sulfur and selenium have hampered its development as anode for high-performance for SIBs/PIBs. Zhang et al. used the method of combining selenide and 1D carbon nanotubes (CNTs) or 3D carbon framework with high conductivity to solve the problems of slow charge transfer and poor stability during the process of sodium ion (potassium ion) insertion and extraction. [17][18][19] However, it is still urgently necessary to obtain composite anode materials with all the above-mentioned excellent characteristics for SIBs/PIBs. [22,23] Herein, Ni 0.6 Fe 0.4 Se 2 /rGO (NFSG) composite material was synthesized by easy selenization of NiFePBs/rGO (precursor abbreviated as NFG), which was prepared by in situ growth of bimetallic (Ni and Fe) Prussian blue (NiFePBs) on the rGO by one-step hydrothermal method. First, transition metal selenides have been reported to have high specific capacity and Rational design of electrode materials with cycle stability and high reversible capacity is crucial to the commercial applications of sodium/potassium ion batteries (SIBs/PIBs) in the future. Developing a high-efficiency anode for SIBs and PIBs, which is formed from the heterogenous Ni-Fe bimetallic nanocube composite selenide grown on graphene (Ni 0.6 Fe 0.4 Se 2 /rGO, abbreviated as NFSG). The Ni 0.6 Fe 0.4 Se 2 nanocubes o...

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“…The adopts and calculation of the data presented as above trials are obvious for statistical significance. [ 54 ]…”

Section: Methodsmentioning

confidence: 99%

Ni_0.6Fe_0.4Se₂/rGO Heterogenous Nanocubes Anode for Stable and Efficient Na/K‐Ion Storage

Wang

Song

Sun

et al. 2022

Adv Materials Inter

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“…5b and c, in favor of faster Li-ion transportation. 64 Fig. 5e shows only a few Si islands still remaining on Si/IPO, but the IP-NP structure was still rmly attached aer cycling.…”

Section: Morphology Evolution Versus the Pattern Structurementioning

confidence: 99%

Waterbed inspired stress relaxation strategies of patterned silicon anodes for fast-charging and longevity of lithium microbatteries

Chen,

Cheng,

Huang

et al. 2023

J. Mater. Chem. A

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“…Thus providing a more extensive network of electrical connection points and improved adhesion, reducing interfacial resistance. [ 41 ]…”

Section: Introductionmentioning

confidence: 99%

Revealing Seed‐Mediated Structural Evolution of Copper‐Silicide Nanostructures: Generating Structured Current Collectors for Rechargeable Batteries

Sankaran,

Kapuria,

Beloshapkin

et al. 2024

Advanced Materials

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Metal silicide thin films and nanostructures typically employed in electronics have recently gained significant attention in battery technology, where they are used as active or inactive materials. However, unlike thin films, the science behind the evolution of silicide nanostructures, especially 1‐D Nanowires (NWs), is a key missing aspect. CuxSiy nanostructures synthesized by solvent vapor growth technique (SVG) are studied as a model system to gain insights into metal silicide formation. The temperature‐dependent phase evolution of CuxSiy structures proceeds from Cu>Cu0.83Si0.17>Cu5Si>Cu15Si4. The role of Cu diffusion kinetics on the morphological progression of Cu silicides is studied, revealing that the growth of 1D metal silicide NWs proceeds through an in‐situ formed, Cu seed‐mediated, self‐catalytic process. The different CuxSiy morphologies synthesized were utilized as structured current collectors (CC) for K‐ion battery anodes. Sb deposited by thermal evaporation upon Cu15Si4 tripod NWs and cube architectures exhibited reversible alloying capacities of 477.3 and 477.6 mAh/g at a C/5 rate. Furthermore, Sb deposited Cu15Si4 tripod NWs anode tested in Li‐ion and Na‐ion batteries demonstrated reversible capacities of ∼518 mAh/g and 495 mAh/g.This article is protected by copyright. All rights reserved

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Electrochemical Patterning of Cu Current Collectors: An Enabler for Pure Silicon Anodes in High‐Energy Lithium‐Ion Batteries

Cited by 9 publications

References 32 publications

Ni_0.6Fe_0.4Se₂/rGO Heterogenous Nanocubes Anode for Stable and Efficient Na/K‐Ion Storage

Ni_0.6Fe_0.4Se₂/rGO Heterogenous Nanocubes Anode for Stable and Efficient Na/K‐Ion Storage

Waterbed inspired stress relaxation strategies of patterned silicon anodes for fast-charging and longevity of lithium microbatteries

Revealing Seed‐Mediated Structural Evolution of Copper‐Silicide Nanostructures: Generating Structured Current Collectors for Rechargeable Batteries

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Electrochemical Patterning of Cu Current Collectors: An Enabler for Pure Silicon Anodes in High‐Energy Lithium‐Ion Batteries

Cited by 9 publications

References 32 publications

Ni0.6Fe0.4Se2/rGO Heterogenous Nanocubes Anode for Stable and Efficient Na/K‐Ion Storage

Ni0.6Fe0.4Se2/rGO Heterogenous Nanocubes Anode for Stable and Efficient Na/K‐Ion Storage

Waterbed inspired stress relaxation strategies of patterned silicon anodes for fast-charging and longevity of lithium microbatteries

Revealing Seed‐Mediated Structural Evolution of Copper‐Silicide Nanostructures: Generating Structured Current Collectors for Rechargeable Batteries

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Product

Resources

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Ni_0.6Fe_0.4Se₂/rGO Heterogenous Nanocubes Anode for Stable and Efficient Na/K‐Ion Storage

Ni_0.6Fe_0.4Se₂/rGO Heterogenous Nanocubes Anode for Stable and Efficient Na/K‐Ion Storage