Nitrogen-enriched graphene-like carbon architecture with tunable porosity derived from coffee ground as high performance anodes for lithium ion batteries

Cubic MnV2O4 fabricated through a facile sol–gel process as an anode material for lithium-ion batteries: morphology and performance evolution

“…The initial capacity loss for the first cycle is derived from the irreversible transformation of MnV 2 O 4 and the formation of a solid electrolyte interphase (SEI) layer on the electrode surface. 30,31 Besides that, the second and third profiles of the MnV 2 O 4 electrode are similar and almost overlap, suggesting good reversibility. Fig.…”

“…[1][2][3] For all that, LIBs confront a host of challenges in burgeoning applications, such as devising an anode material with a long-cycle life, high-rate capability and highsecurity. [4][5][6] The traditional commercial graphite anode has limited theoretical specific capacity (372 mA h g −1 ) and potential safety hazards due to the formation of lithium dendrites. 7 In addition, considering another accepted anode material, Li 4 Ti 5 O 12 , although its high Li + ion insertion potential (∼1.6 V vs. Li/Li + ) can avert the emergence of lithium dendrites, it will visibly abate the output voltage of LIBs, thus restricting their energy and power densities.…”

The second life of coffee can be even more energizing: Circularity of materials for bio-based electrochemical energy storage devices

“…Very recently, intrinsic coffee N-doping in graphene-like structures were reported to contribute to the high reversible capacity and stability. 85 In addition, also external nitrogen-doping sources were used, as in the case of hexamethylenetetramine 86 or urea. 87 Many of these materials were proposed as anode for both lithiumand sodium-ion batteries, while few studies focused specifically on the latter class of devices showing promising results.…”

Recent Advances on Materials for Lithium-Ion Batteries

“…Using coffee grounds as a carbon and nitrogen source, and CaCO 3 , Fe(NO 3 ) 3 , and their derivatives as structural templates and graphitization catalysts, nitrogen-doped graphene-like carbon nanosheets were prepared in the form of 3D porous architecture. The corresponding battery performance is shown in Figure 3c [68]. Alloys are also used as anode active materials, since they can adapt to volume changes during lithiation.…”