Liqiang Xu received his Ph.D. degree in inorganic chemistry from the University of Science and Technology of China in 2005, and then he worked at Shandong University since 2005. He acted as a Research Fellow at Nanyang Technology University in Singapore from May 2012 to May 2013. He is currently a professor at the School of Chemistry and Chemical Engineering, Shandong University, China. Prof. Xu focuses on the rational design of functional electrode materials, and systematically studies their structure-property relationships and investigates their applications in areas of energy storage and conversion. Professor Liqiang Xu has authored over 125 scientific publications and has received many scientific awards, including the Second Prize of Shandong Provincial Natural Science Award in 2020. He is also a Senior Member of the Chinese Chemical Society and High-level talents in Shandong Province.

1. RESEARCH DEVELOPMENTS ON LITHIUM-ION BATTERIES
1.1 Polyanion cathodes
1.2 Layered oxide cathodes
1.3 Spinel structure cathodes
1.4 Anode materials
1.5 Cell Technology
1.6 Electrolyte
1.7 Binders

2. EVALUATION OF SODIUM ION BATTERY: FAST-CHARGING NEXT GENERATION
2.1 Motivation for Exploring Na Ion Batteries
2.2 Fundamental of SIBs
2.3 Cathode Materials: Strategies for Improvement
2.4 Performance Optimization Strategies of Different Electrolytes for Fast Charging
2.5 Electrolyte Additives
2.6 Performance Optimization Strategies for Fast-Charging Anode Materials
2.7 Anode-free SIBs: Design and Working Principle
2.8 All Climates Sodium-Ion Batteries
2.9 Na-powered Progress: The Rise of Commercial Sodium-Ion Cells

3. RESEARCH DEVELOPMENT ON POTASSIUM-ION BATTERIES AND POTASSIUM SULFUR BATTERIES
3.1 Introduction to Potassium-Ion Batteries
3.2 The Composition and Working Principle of Potassium-Ion Batteries
3.3 Cathode Materials for PIBs
3.4 Anode Materials for PIBs
3.5 Electrolyte for PIBs
3.6 Potassium?Sulfur Batteries

[...] ELECTROCATALYST DESIGN AND LITHIUM-SULFUR BATTERY
4.1 Background
4.2 Brief introduction of Li?S batteries
4.3 Micro/nanostructure design
4.4 Defect Engineering
4.5 Composition and structural manipulation
4.6 Heterojunction Construction
4.7 Alloy electrocatalyst
4.8 Other electrocatalysts
4.9 Lithium anode protection
4.10 Electrolyte regulation
4.11 Artificial modification layer on lithium anode
4.12 In-situ characterization method for Li?S batteries
4.13 Practical application research of Li?S batteries

5. ROOM TEMPERATURE SODIUM-SULFUR BATTERIES: CHALLENGES AND PROGRESS
5.1 Introduction
5.2 History of Na-S batteries
5.3 Reaction mechanism of RT Na-S batteries
5.4 Challenges of RT Na-S batteries
5.5 Progress on RT Na-S batteries

6. ZINC ION RECHARGEABLE BATTERY
6.1 Overview of Aqueous Zinc Ion battery
6.2 Introduction
6.3 Cathode materials for AZIBs
6.4 Zinc metal anode materials