New Energy Battery Coating Refurbishment

Can waste graphite be reused in lithium-ion batteries?

Taking full advantage of the waste graphite from spent lithium-ion batteries (LIBs) to prepare the regenerate graphite anode and reuse it in lithium-ion batteries is a crucial strategy. Herein, we design a regeneration method involving pretreatment and an amorphous carbon layer coating to repair the defects of waste graphite.

Can pyrometallurgy regenerate spent graphite anodes?

Direct regeneration of spent graphite anodes via pyrometallurgy has been widely reported [20, 22]. Although these methods can reduce compositional defects on the surface of graphite scrap, the ultra-high temperature process results in high energy consumption and requires complex equipment.

Can a low-temperature magnesium catalytic method reconstruct Turbostratic carbon coating?

Herein, a low-temperature magnesium catalytic method is developed to reconstruct turbostratic carbon coating and repair defects in SG at 900 °C. The dense turbostratic carbon not only effectively repairs the surface damage of the SG and mitigates the occurrence of side reactions but also improves the Li + and electron transfer kinetics of SG.

Does pyrometallurgical and artificial graphite recycle more energy?

The energy consumption (48.05 %, 38.89 %) (Figs. 5 d and S31c) and greenhouse gas emissions (66 %, 61.4 %) (Figs. 5 f and S31e) of our recycling method were significantly lower than pyrometallurgical and synthetic artificial graphite.

Why are lithium-ion batteries used in commercial appliances and electric vehicles?

Lithium-ion batteries (LIBs) have been widely used in commercial appliances and electric vehicles (EVs) due to high energy density and superior safety characteristics [, , , , ].