声明
ABSTRACT
摘要
TABLE OF CONTENTS
Lists of Tables
Lists of Figures
CHAPTER 1 Introduction
1.1 Electrochemical power sources
1.2 Lithium-ion battery(LiB)
1.2.1 Basic component features of lithium-ion battery
1.3 Review of the recycling technologies
1.4 Processes for recovery of lithium-ion batteries
1.4.1 Physical processes
1.4.2 Chemical processes
1.5 The art of research
References
CHAPTER 2 Experimental Procedure
2.1 Pretreatment of the spent lithium-ion batteries
2.2 Separation of the active materials LiNi1/3Co1/3Mn1/3O2 from the aluminum foils
2.3 Reactivation of the as-recovered LiNi1/3Co1/3Mn1/3O2
2.4 Powder characterization
2.5 Structure and morphology analysis
2.6 Electrochemical performance of the material
2.7 Cyclic voltammetry and electrochemical impedance analysis
2.8 Solvents characterization
Reference
CHAPTER 3 Effective recovery of LiMn1/3Ni1/3Co1/3O2 from low quality or spent lithium-ion batteries using a specially designed device
3.1 Introduction
3.2 Materials and methods
3.2.1 Pretreatment of the spent LiBs
3.2.2 Description of the device
3.2.3 Separation of the active materials from the aluminum foils
3.2.4 Powder and solvents characterization
3.2.5 Electrochemical performance of the as-recovered material
3.3 Results and Discussion
3.3.1 The recovery efficiencies of the solvents
3.3.2 Solvents and PVdF characterization
3.3.3 Characterization of the as-recovered materials
3.3.4 Structure and morphology analysis
3.3.5 Electrochemical performance of the as-recovered material
3.3.6 Measures used to eliminate exhaustion and toxicity
3.4 Conclusion
References
CHAPTER 4 Silicon exchange effects of glassware on the recovery of LiPF6:Alternative route to preparation of Li2SiF6
4.1 Introduction
4.2 Experimental
4.2.1 Extraction of Electrolyte
4.2.2 Test for the ions in the electrolyte
4.2.3 Sample and solvents characterization
4.3 Results and Discussion
4.3.1 Preparation of Li2SiF6 in ethanol
4.3.2 Qualitative analysis
4.3.3 Mechanism of Li2SiF6 formation
4.3.4 The XRD analysis
4.3.5 Infra-red analysis of ethanol and electrolyte mixture
4.4 Conclusion
References
CHAPTER 5 Dimethyl Sulfoxide:An alternative to N-methylpyrrolidone for preparation of LiMn1/3Ni1/3Co1/3O2 electrode
5.1 Introduction
5.2 Experiment
5.2.1 Separation of electrode materials
5.2.2 Powder characterization
5.2.3 Electrochemical performance of the material
5.3 Results and Discussion
5.3.1 Characterization of the powders
5.3.2 Structure and morphology analysis
5.3.3 Electrochemical performances of the sample calcined at varying temperatures
5.3.4 Comparative electrochemical performances of LiNi1/3Co1/3Mn1/3O2 electrode prepared with DMSO and NMP
5.3.5 Structure and morphology analysis after electrochemical test
5.3.6 Cyclic voltammetry performance of LiNi1/3Co1/3Mn1/3O2
5.3.7 Electrochemical impedance analysis of electrodes prepared with DMSO and NMP
5.3.8 Comparativeness of DMSO with other solvents
5.4 Conclusion
References
Chapter 6 Electrochemical conductivity effects of recycled LiMn1/3Ni1/3Co1/3O2 containing Na2MoO4·2H2O and (NH4)6Mo7O24·4H2O in lithium-ion battery
6.1 Introduction
6.2 Experiment
6.2.1 Separation of electrode materials
6.2.2 Preparation of LiNi1/3Co1/3Mn1/3O2 containing Na2MoO4·2H2O and (NH4)6Mo7O24·4H2O
6.2.3 Chemical equations for the preparations of the samples
6.2.4 XRD and electrochemical analysis of the samples
6.3 Results and Discussion
6.3.1 XRD analysis of samples
6.3.2 Structure and morphology analysis of powders
6.3.3 Comparative electrochemical performances of L1 and L2 electrodes prepared with DMSO
6.3.4 Comparative cyclic voltammetry performance of samples L1 and L2
6.3.5 Electrochemical impedance analysis of L1 and L2 powders
6.4 Conclusion
References
Chapter 7 Electrochemical performance of recycled LiMn1/3Ni1/3Co1/3O2 reacted with molybdenite in lithium-ion battery
7.1 Introduction
7.2 Experiment
7.2.1 Separation of electrode materials
7.2.2 Preparation of MoS2/LiMn1/3Ni1/3Co1/3O2
7.2.3 XRD and electrochemical analysis of the samples
7.3 Results and Diseussion
7.3.1 XRD and lattice parameters
7.3.2.Electrochemical performance of the powders containing with MoS2
7.3.3 XRD analysis of new powders with MoS2
7.3.4 Structure and morphology analysis of new powders with MoS2
7.3.5 Electrochemical analysis of the powders fabricated without pressing
7.3.6 Cyclic voltammetry performance of LiNi1/3Co1/3Mn1/3O2 containing MoS2
7.3.7 Electrochemical impedance analysis
7.4 Conclusion
References
CHAPTER 8 Summary
List of Publications
Conference Attended
Workshop Attended
Acknowledgment