Novel approach to recover cobalt and lithium from spent lithium-ion battery using oxalic acid.
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"Novel approach to recover cobalt an..." refers background in this paper
...Lithium-ion battery (LIB) has been widely used in consumer electronics and even will be employed for the next generation of electric vehicles [1,2]....
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"Novel approach to recover cobalt an..." refers background or result in this paper
...All the obtained results from theory and experiments show that LiCoO2 can be leached using oxalic acid without an assistance from H2O2....
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...Regarding small e-waste such as spent LIBs, mechanical crushing and screening are thought to be easier in industrial application than manual dismantling [18]....
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...Meanwhile, the relevant previous studies and this work were compared to discuss here [16,18,29]....
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...3H+ + LiCoO2(s) + H2O2 = Li+ + Co2+ + 3/2H2O + 1/4O2↑ (1) 4H2C2O4 + 2LiCoO2 = LiHC2O4 + 2CoC2O4↓ + 4H2O + 2CO2↑ (2) H2C2O4 + Li2C2O4 = 2LiHC2O4 (3) H2C2O4 + CoC2O4 = Co(HC2O4)2 (4) 3H2C2O4 + Al = Al(HC2O4)3 + 3/2H2↑ (5) 3H2C2O4 + Fe = Fe(HC2O4)3 + 3/2H2↑ (6) Significant differences of the oxalates exist in the solubility in water (see SM Table S2)....
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...Previous studies also indicate that LiCoO2 can be leached with strong acid as chemical reaction (1), sometimes assisted by hydrogen peroxide solution (H2O2) [18]....
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439 citations
"Novel approach to recover cobalt an..." refers background in this paper
...Previous studies also indicate that LiCoO2 can be leached with strong acid as chemical reaction (1), sometimes assisted by hydrogen peroxide solution (H2O2) [18]....
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...3H+ + LiCoO2(s) + H2O2 = Li+ + Co2+ + 3/2H2O + 1/4O2↑ (1) 4H2C2O4 + 2LiCoO2 = LiHC2O4 + 2CoC2O4↓ + 4H2O + 2CO2↑ (2) H2C2O4 + Li2C2O4 = 2LiHC2O4 (3) H2C2O4 + CoC2O4 = Co(HC2O4)2 (4) 3H2C2O4 + Al = Al(HC2O4)3 + 3/2H2↑ (5) 3H2C2O4 + Fe = Fe(HC2O4)3 + 3/2H2↑ (6) Significant differences of the oxalates exist in the solubility in water (see SM Table S2)....
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...This obtained result can appropriately improve the existed research that LiCoO2 can be dissolved into oxalic acid with an assistance of H2O2 [15]....
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...All the obtained results from theory and experiments show that LiCoO2 can be leached using oxalic acid without an assistance from H2O2....
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346 citations
"Novel approach to recover cobalt an..." refers background in this paper
...On the other hand, LIBs can regularly release toxic organic compound and then cause an inescapable risk for environment and public health while disposed improperly [10,11]....
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