In situ synthesis of Cu₂O–CuO–C supported on copper foam as a superior binder-free anode for long-cycle lithium-ion batteries

Abstract

A multicomponent active Cu2O–CuO–C composite supported on copper foam is fabricated and exhibits greatly enhanced performance for lithium storage.

A Hierarchical Copper Oxide–Germanium Hybrid Film for High Areal Capacity Lithium Ion Batteries

“…A peak was found at 0.44 V during the first anodic scan, attributing to the phase transition of Li x Ge to Ge; then, two distinct peaks at ∼1.5 and ∼2.5 V and a shoulder peak at ∼2.7 V appeared, which was associated with oxidation of Cu 0 to Cu + and Cu 2+ (Dong et al, 2016;Xu et al, 2016;Wang et al, 2018). These results are in agreement with the other reports of electrochemical reactions of Ge and CuO with Li (Seo et al, 2011;Ren et al, 2013;Xinghui et al, 2014;Wei et al, 2017;Lin et al, 2018;Wang et al, 2018). The CV curves were well-overlapped with each other from the second cycle afterwards, suggesting that the electrode has a good reversibility.…”

Trimetallic MOF-Derived Cu0.39Zn0.14Co2.47O4–CuO Interwoven with Carbon Nanotubes on Copper Foam for Superior Lithium Storage with Boosted Kinetics

“…The CV curves almost overlap each other since the second scan, implying distinguished reaction reversibility. It is confirmed that the introduction of copper foam into CZCOC@CNTs/CF has not bring about additional oxidation/reduction peaks in CV scans, revealing its electrochemical inertness during the lithiation/delithiation procedure . Based on the above experimental analyses, the electrochemical reactions for lithium storage and the as-prepared electrode can be represented as follows To verify the abovementioned electrochemical reaction mechanism, PXRD patterns after charge and discharge processes were investigated after 1000 cycles, respectively.…”

“…It is confirmed that the introduction of copper foam into CZCOC@ CNTs/CF has not bring about additional oxidation/reduction peaks in CV scans, revealing its electrochemical inertness during the lithiation/delithiation procedure. 38 Based on the above experimental analyses, the electrochemical reactions for lithium storage and the as-prepared electrode can be represented as follows (3)…”

Mo-Doped SnO2 Nanoparticles Embedded in Ultrathin Graphite Nanosheets as a High-Reversible-Capacity, Superior-Rate, and Long-Cycle-Life Anode Material for Lithium-Ion Batteries

“…Owing to the huge energy demand for a vehicle, mobile device and other storage facilities, lithium-ion batteries (LIBs) have been numerously investigated and used due to their convenience, safety, and high energy density. − Commercial graphite acts as an anode material for LIBs owing to its economy, superior electronic conductivity, low potential platform, and long cycling life. − Nonetheless, the low capacity (372 mAh g –1 ) and inferior rate have restricted the conventional graphite development . With the advantages of high specific capacity (1494 mAh g –1 ), abundant storage, and less pollution, SnO 2 -based materials have become the alternative anode material for LIBs. , The SnO 2 -based anode storage lithium process includes the conversion reaction based on the formula SnO 2 + Li + → Sn + Li 2 O and the alloying reaction in terms of Sn + 4.4Li + → Li 4.4 Sn. , However, the disadvantages of fast capacity fading and poor rate induced by the huge volume change and pulverization during cycling have restricted its practical application .…”