Recent progress in conversion reaction metal oxide anodes for Li-ion batteries

Cao, Kangzhe; Jin, Tao; Li, Yang; Jiao, Lifang

doi:10.1039/c7qm00175d

Cited by 289 publications

(201 citation statements)

References 354 publications

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“…With conventional carbon‐based anodes reaching their performance limits, researchers are scrutinizing every possible material with suitable working potential. In this regard, transition metal oxides are receiving growing interest as anodes that work beyond intercalation chemistry of carbons . Among various transition metal oxides, the massive adoption of vanadium oxide in LIBs is motivated by a combination of several drivers, including its high theoretical capacity, abundance, rich redox chemistry based on its multivalence states, low cost of raw material, easy preparation, and good safety characteristics .…”

Section: Introductionmentioning

confidence: 99%

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Chen

Tan

Rui

et al. 2019

InfoMat

125

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In the present study, V3O5 microcrystals that synthesized via vacuum calcination are employed as anodes for lithium‐ion batteries (LIBs) for the first time. Despite the widely observed sluggish reaction kinetics and poor cycling stability in most micro‐sized transition metal oxides, the V3O5 microcrystals exhibit excellent rate capability (specific capacities of 144 and 125 mAh g−1 are achieved at extremely high current densities of 20 and 50 A g−1, respectively) and long‐term cycling performance (specific capacity of 117 mAh g−1 is sustained over 2000 cycles at 50 A g−1). It is ascribed to the three‐dimensional open‐framework structure of the V3O5 microcrystals as a major factor in dictating the fast reaction kinetics (lithium diffusion coefficient: ~10−9 cm2 s−1). In addition, significant insight into the reaction mechanism of the V3O5 microcrystals in concomitant its phase evolution are obtained from ex‐situ XRD study, revealing that the V3O5 microcrystals undergo intercalation reaction with insignificant structural change in response to lithiation/delithiation.

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Section: Introductionmentioning

confidence: 99%

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Chen

Tan

Rui

et al. 2019

InfoMat

125

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“…Reversible electrochemical conversion reactions between lithium and transition metal oxides have awoken interest as both positive and negative electrodes in Li‐ion batteries, and recently, Li 2 O:M, Li 2 S:M, and LiF:M nanocomposites have been presented as attractive cathode prelithiation additives, able to store more than 4 times the theoretical specific capacity of existing cathodes ≈500–930 mAh g −1 . The best performance is given by Li 2 O:M (e.g., 724, 799, and 935 mAh g −1 for M = Co, Fe, and Mn, respectively), increasing the overall capacity of a LiFePO 4 (LFP) cathode with the Li 2 O:Co additive by 11% .…”

mentioning

confidence: 99%

Li₂O:Li–Mn–O Disordered Rock‐Salt Nanocomposites as Cathode Prelithiation Additives for High‐Energy Density Li‐Ion Batteries

Diaz‐Lopez

Chater

Bordet

et al. 2020

Advanced Energy Materials

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The irreversible loss of lithium from the cathode material during the first cycles of rechargeable Li‐ion batteries notably reduces the overall cell capacity. Here, a new family of sacrificial cathode additives based on Li2O:Li2/3Mn1/3O5/6 composites synthesized by mechanochemical alloying is reported. These nanocomposites display record (but irreversible) capacities within the Li–Mn–O systems studied, of up to 1157 mAh g−1, which represents an increase of over 300% of the originally reported capacity in Li2/3Mn1/3O5/6 disordered rock salts. Such a high irreversible capacity is achieved by the reaction between Li2O and Li2/3Mn1/3O5/6 during the first charge, where electrochemically active Li2O acts as a Li+ donor. A 13% increase of the LiFePO4 and LiCoO2 first charge gravimetric capacities is demonstrated by the addition of only 2 wt% of the nanosized composite in the cathode mixture. This result shows the great potential of these newly discovered sacrificial additives to counteract initial losses of Li+ ions and improve battery performance.

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“…Thus, focuses have been made on the exploration of alternative high‐capacity anode materials (Zhao et al ., ). Transtition metal oxides (TMO, M = Co, Ni, Cu) are promising anode candidates for LIBs due to its integration of high thoretical capacity, diverse morphological features and low‐cost (Cao et al ., ; Cao et al ., ; Kalubarme et al ., ; Liu et al ., ), as well as safety with non‐separation of lithium metal from the surface (Zheng et al ., ). Environment‐friendly and abundant Fe 2 O 3 is an ideal anode material for LIBs because of high corrosion resistance and low cost, particularly with its high theoretical specific capacity of 1007 mAh g −1 , in contrast with the conventional graphite anode (Zhang et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Architecting hierarchical shell porosity of hollow prussian blue‐derived iron oxide for enhanced Li storage

Zhao

Chen

LIU

et al. 2019

Journal of Microscopy

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Summary Delicate architecture of active material enables improving the performacne of lithium ion batteries. Environmental‐friendly Fe2O3 anode has high theoretical specific capacity (1007 mAh g−1) in lithium ion batteries, but suffers from structural collapsing and poor electronic conductivity. Herein, we design an unique hierarchical iron oxide by regulating the initial precursor prussian blue and targeting hollow‐shell structures with full consideration of temperature controls. Among them, Fe2O3 with a sheet‐crossing structure at 650°C, affords obvious advantages of improved electronic conductivity, short ionic diffusion length, prevented particle agglomeration, and buffer volume change. Thus, we achieve a superior discharge specific capacity of 611 mAh g−1 at 500 mA g−1. Regulating hierarchical structure of prussian blue‐assisted oxides enables effectively enchancing Li storge performance. Lay Description Nanoparticle self‐assembly, one of bottom‐up methods is often used to prepare hollow hierarchical structures, whereas it suffers from low productivity and insufficient stability. Hence, we designed a unique hierarchical iron oxide by top‐down method with regulating the initial precursor PB and targeting hollow‐shell structures through full consideration of temperature controls. Delicate architecture of active material enables improving the performacne of lithium ion batteries. Environmental‐friendly Fe2O3 anode has high theoretical specific capacity (1007 mAh g−1) in lithium ion batteries, but suffers from structural collapsing and poor electronic conductivity. Hence, we prepared Prussian Blue (PB) materials with different sizes and calcined them at different temperatures. We found that no matter what the size of PB, the sheet‐crossing morphology appeared at 650°C, and the interlaced morphology was the key to improve the performance of lithium batteries. If the size of PB precursor is too large or too small, it has adverse effects on lithium batteries. Only when the size and calcination temperature of PB precursor reach the optimum state, the best performance can be obtained. The calcination PB‐K‐3 at 650°C has a unique hierarchical structure of sheet‐crossing. An obvious advantages include the prevention of particle agglomeration, short ionic diffusion lengths, and buffering volume changes. As a consequence, 611 mAh g−1 was obtained at the current density of 500 mA g–1. In addition, we observed the structural changes of electrode plates at different reaction potentials, according to the reaction equation of Fe2O3+xLi++xe→LixFe2O3. With the proceeding charge process, the voltage increases from 0.01 to 3 V, the lithium ions gradually comes out of the iron oxide electrode surface. Whereas the discharging process reverses the aforementioned phenomena. Even if the changing volumes, however, the shape of cubic blocks for the PB‐K‐3 is preserved at different potentials. Taking these advantages into account, our designed MOFs‐derived struture was an effective way to prepare hollow hierarchical structure with enhanc...

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Recent progress in conversion reaction metal oxide anodes for Li-ion batteries

Abstract: Single and binary metal oxides based on conversion reactions for Li-ion batteries are discussed in this review.

Cited by 289 publications

References 354 publications

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Li₂O:Li–Mn–O Disordered Rock‐Salt Nanocomposites as Cathode Prelithiation Additives for High‐Energy Density Li‐Ion Batteries

Architecting hierarchical shell porosity of hollow prussian blue‐derived iron oxide for enhanced Li storage

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Recent progress in conversion reaction metal oxide anodes for Li-ion batteries

Abstract: Single and binary metal oxides based on conversion reactions for Li-ion batteries are discussed in this review.

Cited by 289 publications

References 354 publications

Oxyvanite V3O5: A new intercalation‐type anode for lithium‐ion battery

Oxyvanite V3O5: A new intercalation‐type anode for lithium‐ion battery

Li2O:Li–Mn–O Disordered Rock‐Salt Nanocomposites as Cathode Prelithiation Additives for High‐Energy Density Li‐Ion Batteries

Architecting hierarchical shell porosity of hollow prussian blue‐derived iron oxide for enhanced Li storage

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Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Oxyvanite V₃O₅: A new intercalation‐type anode for lithium‐ion battery

Li₂O:Li–Mn–O Disordered Rock‐Salt Nanocomposites as Cathode Prelithiation Additives for High‐Energy Density Li‐Ion Batteries