Graphitic, Porous, and Multiheteroatom Codoped Carbon Microtubes Made from Hair Waste: A Superb and Sustained Anode Substitute for Li-Ion Batteries

Abstract

Turning household wastes into useful battery anodes is always a rational way to retard the graphite resources exhaustion and prevent deterioration of the living environment. Although great efforts have been devoted, nearly all evolved carbons are intrinsically amorphous and dense, which is adverse to ions diffusions, electrons transfer, and actives utilization for battery usage. Herein, by selecting common hair waste as the example material, we propose a smart catalytic engineering protocol to make graphitic, porous, and multiheteroatom co-doped carbon microtube anodes for sustained Li-ion batteries. The Ni-based nanofilm matrix evenly immobilized on all hair surface plays a key role in the rapid graphitization of hair and the formation of deep pores. Such evolved carbons with unique functionalized properties can well make up for the shortcomings of hair-carbonized products, exhibiting far superior anodic behaviors on reversible capacity/actives utilization efficiency, cyclic stability/endurance (no capacity fading in 1000 cycles), and rate capabilities. The full cell testing furthermore justifies their great potential usage in Li-ion batteries. This paradigm work may bring new opportunities to recycle and evolve the vast biomass waste to advanced anode substitutes for energy-storage applications.

B, O and N Codoped Biomass-Derived Hierarchical Porous Carbon for High-Performance Electrochemical Energy Storage

“…To investigate the Li-ion storage performances of BLHPC-Zn/K, the half-cell was assembled and measured within the voltage range from 0.01 to 3.0 V. Figure 7 a exhibits the first five CV curves of BLHPC-Zn/K anode at a scan rate of 0.5 mV s −1 . Obviously, a distinct peak (~0.5 V) appeared in the first negative curve, which is attributed to the formation of solid electrolyte film (SEI) and the consumption of Li ions [ 52 , 53 ]. Moreover, a wide peak has been found around 1.5 V, which corresponds to the reactions between Li ions and functional groups on the multi heteroatom doped carbon material surface.…”

Efficient energy storage in mustard husk derived porous spherical carbon nanostructures

“…These results are superior to the values previously reported for other bio-material derived carbons (Table 1). [7][8][9][15][16][17][18][19][20][54][55][56] The high surface area of the PSCN and the presence of sulfur and nitrogen in the PSCN could be the factors for such excellent performance as a LIB anode. However, it is observed from Fig.…”

Biomass‐derived Carbon Quantum Dots – A Review. Part 2: Application in Batteries

“…These carbon anodes have much‐exposed redox reaction sites, which enhance the remarkable reversible maximum capacity of ∼689 mAh g −1 . In addition, it has improved the utilization efficiency along with prolonged cyclic lifespan up to 1000 cycles and also the prominent maximum capacity to ∼387 mAh g −1 at 6 A g −1 87.…”