Innovative Electrochemical Strategy to Recovery of Cathode and Efficient Lithium Leaching from Spent Lithium-Ion Batteries

Liu，Kui1; Yang，Shenglong1; Lai，Feiyan2; Wang，Hongqiang1; Huang，Youguo1; Zheng，Fenghua1; Wang，Shubin3; Zhang，Xiaohui1,2; Li，Qingyu1

2020-05-26

10.1021/acsaem.0c00395

ACS Applied Energy Materials   影响因子和分区

2574-0962

2574-0962

Recycling of spent lithium-ion batteries is of great importance for environmental protection and resusing resources. This work proposes a green and environmentally friendly recycling strategy of LiNiCoMnO cathode material for spent batteries by an electrochemical method. In the designed electrolysis cell, the produced gaseous species from oxidation of solvent molecules occurring at the interfaces between electrode/cathode materials and active particles/binder exert the force to separate bonded particles from current collector. Meanwhile, the efficient leaching of lithium (>98%) into electrolyte was achieved under an electric field without additional leaching process. The Al can also be recovered in the form of metallic foil. The separation of active material, the selective leaching of lithium, and recovery of Al foil are conducted by one-step electrolysis in a short operating cycle. The remaining transition metals in residues were reused to synthesize LiNiCoMnO material. As the cathode material, the regenerated active material delivers an initial capacity of 161 mAh g at 0.1 C and 88.3% remains after 200 cycles. The superior cycling stability is comparable to the unused commercial batteries. This innovative approach can be readily extended to recover other types of cathode materials for spent lithium-ion batteries.

cathode materials electrolytic leaching LiNi1/3Co1/3Mn1/3O2 metal recovery spent Li-ion batteries

SCI ; EI

英语

其他

National Natural Science Foundation of China[51902108][51964013][51864007] ; Guangxi Key Research and Development Program[GUIKE AB17129011] ; Guangxi Natural Science Foundation[2018GXNSFBA281123][2018GXNSFBA138002] ; Guangxi Technology Base and Talent Subject[GUIKE AD18126001][AD19110134][AD19110119][AD19110028] ; Natural Science Foundation of Guangdong Province[2018A030313944]

Chemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000537656400078

AMER CHEMICAL SOC

20202308796575

Leaching ; Electrolytes ; Ions ; Recycling ; Transition metals ; Metal recovery ; Cathodes ; Electrolysis ; Electronic Waste ; Electric fields

Municipal and Industrial Wastes; Waste Treatment and Disposal:452 ; Industrial Wastes:452.3 ; Metallurgy and Metallography:531 ; Electricity: Basic Concepts and Phenomena:701.1 ; Electric Batteries and Fuel Cells:702 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804

2-s2.0-85085928737

Scopus

1.Guangxi Key Laboratory of Low Carbon Energy Materials,Guangxi New Energy Ship Battery Engineering Technology Research Center,School of Chemical and Pharmaceutical Science,Guangxi Normal University,Guilin,541004,China
2.College of Materials and Chemical Engineering,Hezhou University,Hezhou,542899,China
3.School of Environmental Science and Engineering,Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control,Southern University of Science and Technology,Guangzhou,518055,China

Liu，Kui,Yang，Shenglong,Lai，Feiyan,et al. Innovative Electrochemical Strategy to Recovery of Cathode and Efficient Lithium Leaching from Spent Lithium-Ion Batteries[J]. ACS Applied Energy Materials,2020,3(5):4767-4776.

Liu，Kui.,Yang，Shenglong.,Lai，Feiyan.,Wang，Hongqiang.,Huang，Youguo.,...&Li，Qingyu.(2020).Innovative Electrochemical Strategy to Recovery of Cathode and Efficient Lithium Leaching from Spent Lithium-Ion Batteries.ACS Applied Energy Materials,3(5),4767-4776.

Liu，Kui,et al."Innovative Electrochemical Strategy to Recovery of Cathode and Efficient Lithium Leaching from Spent Lithium-Ion Batteries".ACS Applied Energy Materials 3.5(2020):4767-4776.