Development of NVP Based Cathode Material for High Performance Sodium Ion Battery Applications

Sodium ion batteries (SIBs) are considered to be next generation energy storage devises due to promising electrochemical performance, safety, low- cost and sustainability. They can be made from widely available and inexpensive resources for use in grid energy and heavy electric vehicle applications. Research is going on around the world to develop suitable electrode materials and electrolytes to achieve specific energy and cycle life similar to that of LIBs. ARCI embarked on major research to develop different cathode materials such as Polyanionic compounds with long cycle (>500 cycles) life and layered sodium transition metal oxides with high specific capacity (>160 mAh/g) and hard carbon with low sodium insertion potential (<0.2 V vs. Na/Na + ) and high specific capacity (>250 mAh/g) as anode using novel chemical methods. Electrochemical performances of these materials have been investigated using indigenously developed non-aqueous based electrolyte.