Lithium rhenium(<scp>vii</scp>) oxide as a novel material for graphite pre-lithiation in high performance lithium-ion capacitors

Jeżowski, Paweł; Fic, Krzysztof; Crosnier, Olivier; Brousse, Thierry; Béguin, François

doi:10.1039/c6ta03810g

Cited by 82 publications

(45 citation statements)

References 26 publications

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“…5c). The highest specific energy and power of 130.1 Wh kg À1 and 5056.9 W kg À1 (based on the total mass of the positive and negative active materials) were achieved for LIC250, which are higher than that of previously reported results [18,20,[40][41][42][43]. The energy characteristic of LIC depends on the non-faradic adsorption/desorption behavior of AC positive electrode.…”

Section: Resultsmentioning

confidence: 68%

“…Currently, it has been commonly considered as a promising strategy by adding the LSMs in the positive electrode. Many LSMs have been reported, such as Li 2 MoO 3 [16], Li 5 FeO 6 [17], Li 6 CoO 4 [18], Li 2 -RuO 3 [19], Li 5 ReO 6 [20], Li 1Àx Ni 1+x O 2 [21], Li (Ni 1ÀxÀy Mn x Co y )O 2 [22], Co/LiF [23], Li 2 O [24], Co/Li 2 S [25], Li 2 O 2 [26], Co/Li 2 O [27] and Li 3 N [28,29]. Among these materials, Li 3 N has been mostly recognized as a promising alternative, because it owns the highest theoretical specific capacity (2308.5 mAh g À1 ), proper decomposing potential and no residues after decomposition.…”

Section: Introductionmentioning

confidence: 99%

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DMF stabilized Li3N slurry for manufacturing self-prelithiatable lithium-ion capacitors

Liu

Zhang

et al. 2020

Science Bulletin

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Section: Resultsmentioning

confidence: 68%

Section: Introductionmentioning

confidence: 99%

DMF stabilized Li3N slurry for manufacturing self-prelithiatable lithium-ion capacitors

Liu

Zhang

et al. 2020

Science Bulletin

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“…The further development of EDLCs is today oriented towards enhancement of gravimetric/volumetric energy while retaining their high cyclability. Among the various approaches proposed to date,, hybrid concepts such as merging advantages of Li‐ion and capacitive technologies appear suitable for applications requiring energy storage, but with strict space/mass limitations . Although the specific and volumetric energy density can be remarkably improved, their cyclability and impact on the environment is still unsatisfactory.…”

Section: Introductionmentioning

confidence: 99%

“…Among the various approaches proposed to date, [6,[14][15][16][17][18] hybrid concepts such as merging advantages of Liion and capacitive technologies appear suitable for applications requiring energy storage, but with strict space/mass limitations. [19][20][21][22][23][24] Although the specific and volumetric energy density can be remarkably improved, [25] their cyclability and impact on the environment is still unsatisfactory. For that reason, carbon-based capacitors with aqueous electrolytes characterized by moderate specific energy, but long cycle life, are recognized as interesting systems.…”

Section: Introductionmentioning

confidence: 99%

Towards more Durable Electrochemical Capacitors by Elucidating the Ageing Mechanisms under Different Testing Procedures

Fic

Frąckowiak

et al. 2018

ChemElectroChem

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Electrical double‐layer capacitors (EDLCs) commonly denoted supercapacitors are rechargeable energy storage devices with excellent power and energy delivery metrics intermediate to conventional capacitors and batteries. High‐voltage aqueous electrolyte based EDLCs are particularly attractive due to their high‐power capability, facile production, and environmental advantages. EDLCs should last for thousands of cycles and evaluation of future cell chemistries require long‐term and costly galvanostatic cycling. Voltage holding tests have been proposed to shorten evaluation time by accelerating cell degradation processes. Whether voltage holding can replace cycling completely remains undemonstrated. In this work, a systematic investigation of the influence of testing procedure on cell performance is presented. The state‐of‐the‐art post‐mortem and operando experimental techniques are implemented to elucidate ageing mechanisms and kinetics inside EDLC cells under different testing procedures. Carbon corrosion occurring on the positively polarized electrode leads to the lower active surface area and higher oxygen content. On the contrary, an increase of surface area and micropore volume are observed on the negatively polarized electrode. Repeated galvanostatic cycles at U <1.6 V appears to facilitate the depletion of oxygen species on the positively polarized electrode in comparison with voltage holding, which indicates a more complex degradation mechanism during cycling. Caution is advised when comparing results from different test procedures.

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“…All techniques and methods described above can be applied for the pre-lithiation of LICs, such as the electrochemical pre-lithiation [54,157,160,161], the pre-lithiation with additives inside the negative or positive electrode [162][163][164] or the pre-lithiation through direct contact with Li metal [165,166]. In contrast to pre-lithiation of LIBs, pre-lithiated LICs are already commercially available as described in the followings section.…”

Section: Pre-lithiation In Lithium-ion Capacitorsmentioning

confidence: 99%

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

et al. 2018

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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.

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Lithium rhenium(vii) oxide as a novel material for graphite pre-lithiation in high performance lithium-ion capacitors

Abstract: The electrochemical irreversibility of lithium extraction from lithium rhenium oxide (Li5ReO6) has been studied in LiPF6 electrolyte, and the material has been further included in the activated carbon electrode of a lithium-ion capacitor for the lithiation of graphite.

Cited by 82 publications

References 26 publications

DMF stabilized Li3N slurry for manufacturing self-prelithiatable lithium-ion capacitors

DMF stabilized Li3N slurry for manufacturing self-prelithiatable lithium-ion capacitors

Towards more Durable Electrochemical Capacitors by Elucidating the Ageing Mechanisms under Different Testing Procedures

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

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