Pre-lithiated Li x Mn 2 O 4 : A new approach to mitigate the irreversible capacity loss in negative electrodes for Li-ion battery

Aravindan, Vanchiappan; Shen, Nan; Keppeler, Miriam; Srinivasan, Madhavi

doi:10.1016/j.electacta.2016.05.035

Cited by 42 publications

(59 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In both publications, the capability of o-LMO to overcome the ALL of graphite is investigated. Moreover, the possibility of electrochemical over-lithiation of LMO was investigated but against an α-Fe2O3 negative electrode [131]. The o-LMO exhibited improved kinetics compared to pristine LiMn2O4, leading to an improved long-term stability of the α-Fe2O3/Li1+xMn2O4 lithium ion cell.…”

Section: Over-lithiated Positive Electrode Materialsmentioning

confidence: 99%

See 1 more Smart Citation

Pre-Lithiation Strategies for Rechargeable Energy Storage Technologies: Concepts, Promises and Challenges

et al. 2018

View full text Add to dashboard Cite

Abstract:In order to meet the sophisticated demands for large-scale applications such as electro-mobility, next generation energy storage technologies require advanced electrode active materials with enhanced gravimetric and volumetric capacities to achieve increased gravimetric energy and volumetric energy densities. However, most of these materials suffer from high 1st cycle active lithium losses, e.g., caused by solid electrolyte interphase (SEI) formation, which in turn hinder their broad commercial use so far. In general, the loss of active lithium permanently decreases the available energy by the consumption of lithium from the positive electrode material. Pre-lithiation is considered as a highly appealing technique to compensate for active lithium losses and, therefore, to increase the practical energy density. Various pre-lithiation techniques have been evaluated so far, including electrochemical and chemical pre-lithiation, pre-lithiation with the help of additives or the pre-lithiation by direct contact to lithium metal. In this review article, we will give a comprehensive overview about the various concepts for pre lithiation and controversially discuss their advantages and challenges. Furthermore, we will critically discuss possible effects on the cell performance and stability and assess the techniques with regard to their possible commercial exploration.

show abstract

Section: Over-lithiated Positive Electrode Materialsmentioning

confidence: 99%

“…The over-lithiated positive electrodes release their "lithium reservoir" in the 1st cycle in order to compensate the active lithium loss (ALL) of conversion or intercalation type negative electrodes, e.g., α-Fe 2 O 3 or graphite [131][132][133].…”

Section: Over-lithiated Positive Electrode Materialsmentioning

confidence: 99%

Pre-Lithiation Strategies for Rechargeable Energy Storage Technologies: Concepts, Promises and Challenges

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The sample nomenclature was set to α-Fe 2 O 3 -SX.X, in which S refers to the type of SCA (E for ethylenediamine, D for 1,2-diaminopropane, B for 2,3-diaminobutane, and N for N -methylethylenediamine) and X.X refers to the amount of Fe 3+ in moles, which was varied over a range of 0.1 to 2.0. The hydrothermal synthesis parameters of all samples were set to a 1:13 molar ratio of FeCl 3 /SCA and the reaction temperature/time was 180 °C/16 h, which was optimized towards fully crystalized pure phase products in a preliminary test series and were found to be in good agreement with previously reported α-Fe 2 O 3 synthesis [ 22 , 30 ]. A systematic study was conducted to analyze the effect of Fe 3+ concentration and various SCAs on crystal phase formation and morphology of α-Fe 2 O 3 .…”

Section: Resultsmentioning

confidence: 59%

Systematic control of α-Fe₂O₃ crystal growth direction for improved electrochemical performance of lithium-ion battery anodes

Shen

Keppeler

Stiaszny

et al. 2017

Beilstein J. Nanotechnol.

Self Cite

View full text Add to dashboard Cite

α-Fe2O3 nanomaterials with an elongated nanorod morphology exhibiting superior electrochemical performance were obtained through hydrothermal synthesis assisted by diamine derivatives as shape-controlling agents (SCAs) for application as anodes in lithium-ion batteries (LIBs). The physicochemical characteristics were investigated via XRD and FESEM, revealing well-crystallized α-Fe2O3 with adjustable nanorod lengths between 240 and 400 nm and aspect ratios in the range from 2.6 to 5.7. The electrochemical performance was evaluated by cyclic voltammetry and charge–discharge measurements. A SCA test series, including ethylenediamine, 1,2-diaminopropane, 2,3-diaminobutane, and N-methylethylenediamine, was implemented in terms of the impact on the nanorod aspect ratio. Varied substituents on the vicinal diamine structure were examined towards an optimized reaction center in terms of electron density and steric hindrance. Possible interaction mechanisms of the diamine derivatives with ferric species and the correlation between the aspect ratio and electrochemical performance are discussed. Intermediate-sized α-Fe2O3 nanorods with length/aspect ratios of ≈240 nm/≈2.6 and ≈280 nm/≈3.0 were found to have excellent electrochemical characteristics with reversible discharge capacities of 1086 and 1072 mAh g−1 at 0.1 C after 50 cycles.

show abstract

“…In recent years, metal oxide which undergo conversion and alloying mechanisms are considered to be a good candidates to use as negative electrode in LIB and LIC due to their large theoretical capacity (>600 mAh g −1 ), high power capability, and relatively lower redox potential than well‐established Li 4 Ti 5 O 12 ,. These electrodes are anticipated to improve the energy density and certainly boost the high power density as well.…”

Section: Introductionmentioning

confidence: 99%

“…[4,6,13] In recent years, metal oxide which undergo conversion and alloying mechanisms are considered to be a good candidates to use as negative electrode in LIB and LIC due to their large theoretical capacity (> 600 mAh g À1 ), high power capability, and relatively lower redox potential than well-established Li 4 Ti 5 O 12 . [3,[18][19][20][21][22][23][24] These electrodes are anticipated to improve the energy density and certainly boost the high power density as well. Among these metal oxides, magnetite (Fe 3 O 4 ) has been gained great attention as conversion type anode because of the advantages like high theoretical capacity (924 mAh g À1 ), low cost, eco-friendly and naturally abundant.…”

Section: Introductionmentioning

confidence: 99%

Exploring High‐Energy Li‐I(r)on Batteries and Capacitors with Conversion‐Type Fe₃O₄‐rGO as the Negative Electrode

et al. 2017

Self Cite

View full text Add to dashboard Cite

We report a microwave‐assisted solvothermal process for the preparation of magnetite (Fe3O4, ca. 5 nm)‐anchored reduced graphene oxide (rGO). It has been examined as a prospective conversion‐type negative electrode for multiple energy storage applications, such as Li‐ion batteries (LIBs) and Li‐ion capacitors (LICs). A LiFePO4/Fe3O4‐rGO cell is constructed and capable of delivering an energy density of approximately 139 Wh kg−1 with a notable cyclability (ca. 76 %) after 500 cycles. Prior to the fabrication of a LIB, the Fe3O4‐rGO is electrochemically pretreated to eliminate the irreversible capacity loss. In addition to the LIB, a high‐energy LIC is also fabricated by using the pre‐lithiated Fe3O4‐rGO composite as the anode and commercial activated carbon as the cathode. This LIC registered a maximum energy density of approximately 114 Wh kg−1 with good cyclability. For both the LIB and LIC, the mass loading between the electrodes was adjusted based on the performance with metallic Li. The improved electrochemical performance of Fe3O4‐rGO over existing materials is a promising development in the quest for novel, fast, low cost, and efficient energy storage systems without compromising the eco‐friendliness

show abstract

Pre-lithiated Li x Mn 2 O 4 : A new approach to mitigate the irreversible capacity loss in negative electrodes for Li-ion battery

Cited by 42 publications

References 26 publications

Pre-Lithiation Strategies for Rechargeable Energy Storage Technologies: Concepts, Promises and Challenges

Pre-Lithiation Strategies for Rechargeable Energy Storage Technologies: Concepts, Promises and Challenges

Systematic control of α-Fe₂O₃ crystal growth direction for improved electrochemical performance of lithium-ion battery anodes

Exploring High‐Energy Li‐I(r)on Batteries and Capacitors with Conversion‐Type Fe₃O₄‐rGO as the Negative Electrode

Contact Info

Product

Resources

About

Pre-lithiated Li x Mn 2 O 4 : A new approach to mitigate the irreversible capacity loss in negative electrodes for Li-ion battery

Cited by 42 publications

References 26 publications

Pre-Lithiation Strategies for Rechargeable Energy Storage Technologies: Concepts, Promises and Challenges

Pre-Lithiation Strategies for Rechargeable Energy Storage Technologies: Concepts, Promises and Challenges

Systematic control of α-Fe2O3 crystal growth direction for improved electrochemical performance of lithium-ion battery anodes

Exploring High‐Energy Li‐I(r)on Batteries and Capacitors with Conversion‐Type Fe3O4‐rGO as the Negative Electrode

Contact Info

Product

Resources

About

Systematic control of α-Fe₂O₃ crystal growth direction for improved electrochemical performance of lithium-ion battery anodes

Exploring High‐Energy Li‐I(r)on Batteries and Capacitors with Conversion‐Type Fe₃O₄‐rGO as the Negative Electrode