Adaptable Eutectic Salt for the Direct Recycling of Highly Degraded Layer Cathodes
Tsinghua–Berkeley Shenzhen Institute · Tsinghua University · +3 more institutions
Abstract
Recycling spent lithium-ion batteries (LIBs) is promising for resource reuse and environmental conservation but suffers from complex processing and loss of embedded value of spent LIBs in conventional metallurgy-based recycling routes. Herein, we selected a eutectic LiI–LiOH salt with the lowest eutectic point among binary eutectic lithium salt systems to provide a Li-rich molten environment, not only offering excess lithium but benefiting ion diffusion compared with that in the solid environment. Hence, the highly degraded LiNi0.5Co0.2Mn0.3O2 in spent LIBs which suffers high Li-deficiency and serious structural defects with harmful phase transitions is directly regenerated. A facile one-step heating strategy…
Citation impact
- FWCI
- 21.48
- Percentile
- 100%
- References
- 41
Authors
8- JMJun Ma
Tsinghua–Berkeley Shenzhen Institute, Tsinghua University
- JWJunxiong Wang
Shanghai Jiao Tong University, Tsinghua–Berkeley Shenzhen Institute, Tsinghua University
- KJKai Jia
Shanghai Jiao Tong University, Tsinghua–Berkeley Shenzhen Institute, Tsinghua University
- ZLZheng LiangCorresponding
Shanghai Jiao Tong University
- GJGuanjun Ji
Shanghai Jiao Tong University, Tsinghua–Berkeley Shenzhen Institute, Tsinghua University
Topics & keywords
- Eutectic system
- Cathode
- Molten salt
- Lithium (medication)
- Chemistry
- Salt (chemistry)
- Chemical engineering
- Nanotechnology
- Life in Land