1 INTRODUCTION<br>1.1 Overview <br>1.2 The birth and development of sodium-ion batteries<br> <br>2 CHARACTERISTIC OF SODIUM ION BATTERIES<br>2.1 Basic Features<br>2.2 Working Principle <br>2.3 Concepts and Equations <br>2.4 Structural Composition<br> <br>3 CATHODE MATERIALS OF SIBS<br>3.1 Polyanion Cathode <br>3.2 Oxide Cathode<br>3.3 Prussian Blue and their Analogues<br>3.4 Perovskite Transition Metal Fluorides <br>3.5 Organic Cathode<br> <br>4 ANODE MATERIALS OF SODIUM ION BATTERIES<br>4.1 Carbon-based Anode <br>4.2 Titanium-based Anode <br>4.3 Conversion Anode <br>4.4 Metal/Alloy Anode<br> <br>5 ELECTROLYTE, SEPARATOR, BINDER AND OTHER DEVICES OF SODIUM ION BATTERIES<br>5.1 Organic Liquid Electrolytes <br>5.2 Solid State Electrolytes <br>5.3 Separator<br>5.4 Binder <br>5.5 Conductive Agent <br>5.6 Current Collector<br> <br>6 ADVANCED CHARACTERIZATION TECHNIQUES AND THEORETICAL CALCULATION<br>6.1 Imaging and Microscopy <br>6.2 Synchrotron Radiation X-Ray Diffraction Technique <br>6.3 Synchrotron Radiation X-Ray Absorption Spectroscopy Technique <br>6.4 Solid-state Nuclear Magnetic Resonance Spectroscopy <br>6.5 Electrochemical Test Techniques <br>6.6 Other Characterization Techniques <br>6.7 Theoretical Calculation<br> <br>7 PRACTICAL APPLICATION OF SIBS<br>7.1 Introduction <br>7.2 Commercial Sodium Battery <br>7.3 Design and Manufacture Process of SIBs <br>7.4 Presodiation Techniques <br>7.5 Performances Test and Failure Analysis <br>7.6 Commercial Application and Future Perspectives<br> <br>