High areal capacity Li ion battery anode based on thick mesoporous Co3O4 nanosheet networks

Wang, Xinghui; Yu, Fan; Susantyoko, Rahmat Agung; Xiao, Qizhen; Sun, Leimeng; He, Deyan

doi:10.1016/j.nanoen.2014.02.005

Cited by 111 publications

(67 citation statements)

References 37 publications

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“…Co 3 O 4 has received a particular interest as one of the most promising candidates as anode materials to replace the conventional carbon anodes for LIBs due to its high theoretical capacity (890 mAh g À 1 ) [25,26]. Its electrochemical lithium-storage process is generally interpreted by the converse mechanism as follows: Co 3 O 4 + 8Li + + 8e À 23Co + 4Li 2 O [27].…”

Section: Introductionmentioning

confidence: 99%

Revealing the electrochemical conversion mechanism of porous Co3O4 nanoplates in lithium ion battery by in situ transmission electron microscopy

Zhang

et al. 2014

Nano Energy

123

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Section: Introductionmentioning

confidence: 99%

Revealing the electrochemical conversion mechanism of porous Co3O4 nanoplates in lithium ion battery by in situ transmission electron microscopy

Zhang

et al. 2014

Nano Energy

123

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“…Electrochemical performance of the bioinspired CoMoO x nanostructure was evaluated in a CR‐2032 coin cell with lithium metal as counter and reference electrodes by using cyclic voltammetry (CV) and galvanostatic discharge/charge techniques. From CV curves in an initial scan at 0.2 mV s −1 (Figure S17, Supporting Information), typical electrochemical redox reactions can be identified, such as the reduction of Co 3 O 4 to metallic Co (0.7 V, Co 3 O 4 + 8Li + + 8e − → 3Co + 4Li 2 O), accompanied with the formation of Li 2 O and solid electrolyte interphase (SEI), and the reversible reaction with the decomposition of Li 2 O (1.5 and 2.0 V, 3Co + 4Li 2 O → Co 3 O 4 + 8Li + + 8e − ) . It is clearly observed that there are some obvious differences between the CoMoO x and Co 3 O 4 electrodes.…”

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confidence: 99%

Honeycomb‐Inspired Heterogeneous Bimetallic Co–Mo Oxide Nanoarchitectures for High‐Rate Electrochemical Lithium Storage

et al. 2019

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Nanostructure engineering has been proved to be an efficient approach for improving electrochemical properties for energy storage by accommodating volume changes, facilitating rapid mass transport paths, and enlarging ion storage sites and interfaces. The well‐designed fine nanostructures, unfortunately, are usually destroyed during long‐term cycles and ultimately lose their structural advantages. Herein, stimulated by the extraordinary structural stability, robust mechanical properties, and salient ventilation capacity of natural honeycomb species, bioinspired heterogeneous bimetallic Co–Mo oxide (CoMoOx) nanoarchitectures assembled from 2D nanounits are successfully fabricated via a molybdenum‐mediated self‐assembly strategy for improving the rate capability of electrochemical lithium storage devices. Owing to the robust structural stability and the ultrathin 2D wall structure, CoMoOx nanostructures present well‐maintained honeycomb‐like structure, rapid capacitive insertion–desertion behaviors, and thus significantly enhanced lithium ion storage performance at high rates (5.0 A g−1). It is also revealed that the reversible transition of cobalt and molybdenum phases closely associated with the ultrathin 2D wall structures greatly contribute to the outstanding electrochemical lithium storage performances. This attractive integration of structural and functional advantages achieved by learning from nature offers new insights into the design of cost‐effective electrode materials for high‐performance energy devices.

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“…Meanwhile, a variety of nanostructured cobalt oxides can be directly fabricated on the metallic current collectors using some readily available ways. 28 To test the feasibility of this strategy, Ge/Co 3 O 4 shell/core electrodes were prepared and assembled into halfand full-cells in the present work. Ge electrode with such a unique architecture exhibits high capacity, excellent rate capability, and cyclic stability in both the half-and full-cell configurations.…”

mentioning

confidence: 99%

Germanium Anode with Excellent Lithium Storage Performance in a Germanium/Lithium–Cobalt Oxide Lithium-Ion Battery

Yang

et al. 2015

ACS Nano

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150

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Germanium is a highly promising anode material for lithium-ion batteries as a consequence of its large theoretical specific capacity, good electrical conductivity, and fast lithium ion diffusivity. In this work, Co3O4 nanowire array fabricated on nickel foam was designed as a nanostructured current collector for Ge anode. By limiting the voltage cutoff window in an appropriate range, the obtained Ge anode exhibits excellent lithium storage performance in half- and full-cells, which can be mainly attributed to the designed nanostructured current collector with good conductivity, enough buffering space for the volume change, and shortened ionic transport length. More importantly, the assembled Ge/LiCoO2 full-cell shows a high energy density of 475 Wh/kg and a high power density of 6587 W/kg. A high capacity of 1184 mA h g(-1) for Ge anode was maintained at a current density of 5000 mA g(-1) after 150 cycles.

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High areal capacity Li ion battery anode based on thick mesoporous Co3O4 nanosheet networks

Cited by 111 publications

References 37 publications

Revealing the electrochemical conversion mechanism of porous Co3O4 nanoplates in lithium ion battery by in situ transmission electron microscopy

Revealing the electrochemical conversion mechanism of porous Co3O4 nanoplates in lithium ion battery by in situ transmission electron microscopy

Honeycomb‐Inspired Heterogeneous Bimetallic Co–Mo Oxide Nanoarchitectures for High‐Rate Electrochemical Lithium Storage

Germanium Anode with Excellent Lithium Storage Performance in a Germanium/Lithium–Cobalt Oxide Lithium-Ion Battery

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