Plasma jet printing induced high-capacity graphite anodes for sustainable recycling of lithium-ion batteries

A Novel and Sustainable Approach to Enhance the Li-Ion Storage Capability of Recycled Graphite Anode from Spent Lithium-Ion Batteries

“…R CT values for WG@GNF are increased from 20 Ω cm 2 in the 1 st cycle to 67 Ω cm 2 in the 1000 th cycle. Li + diffusivity is further elucidated from the EIS spectra at low-frequency regions. ,, The Warburg factor (σ) of WG@GNF is evaluated from the slope of the plot between Z ′ and the reciprocal of the square root of frequency (ω –1/2 ). Figure c shows a linear relationship after the 1 st and 1000 th cycles, and the corresponding slopes (σ) are calculated.…”

“…A recent publication from our group observed that graphite is recovered from spent laptop battery packs by a facile water leaching method and further calcined under an inert atmosphere at 750 °C to eliminate residual impurities and improve the degree of graphitization of the recovered graphite. Recovered water-washed graphite (WG) delivered a stable discharge capacity of 310 mAh g –1 at 0.1C rate over 100 cycles and 295 mAh g –1 at 0.5C rate over 1000 cycles, respectively .…”

A review on green and sustainable carbon anodes for lithium ion batteries: utilization of green carbon resources and recycling waste graphite

“…Benefiting from the defect repair by carbon coating the specific capacity recovers to 384 mA h g −1 . Bhar et al 189 introduced defect sites and heteroatom functionalities to revitalized the surface structure of water-washed recycled graphite. The method includes the efficient water-leaching approach and plasma jet printing technology.…”

Upcycling of spent lithium-ion battery graphite anodes for a dual carbon lithium-ion capacitor

“…Researchers have reported various LICs with puried recycled graphite, and the energy-power output is found to be in the range of the pristine graphite electrode materials. [30][31][32][33][34][35][36][37][38][39] LICs with congurations of pre-lithiated recycled graphite//AC, recycled graphite//AC via solvent co-intercalation, and DMF-washed recycled graphite// AC are found to deliver energies of 112, 46.4, and 185 W h kg −1 at power densities of >300, 248, and 315 W kg −1 , respectively. [40][41][42] In this work, a composite of graphite and graphene is utilized as the battery-type anode coupled with activated graphene sheets as a capacitive cathode for an energy-powerbalanced LIC.…”

“…Researchers have reported various LICs with purified recycled graphite, and the energy-power output is found to be in the range of the pristine graphite electrode materials. 30–39 LICs with configurations of pre-lithiated recycled graphite//AC, recycled graphite//AC via solvent co-intercalation, and DMF-washed recycled graphite//AC are found to deliver energies of 112, 46.4, and 185 W h kg −1 at power densities of >300, 248, and 315 W kg −1 , respectively. 40–42…”