10. A Concept Note on Aqueous Type Graphite Dual-ion Battery: A Promising Low-Cost Electrical Energy Storage Technology

Electrical energy storage technologies are an integral part of renewable energy generation infrastructure. The rechargeable battery is a unique example of portable storage technologies. Among various rechargeable batteries, dual-ion batteries are catching the attention recently. Herein, we present a proof-of-concept of a novel and eco-friendly dual-ion battery with electrochemically processed graphite electrodes in aqueous electrolyte. We also take the advantage of the three electrons transfer process of Al³⁺ ion while operating the battery. The battery shows excellent cycling stability over 100 cycles with specific capacity of 10 mAhg⁻¹. The notable part of the work is that it proposes to use exceptionally low-cost and easily available raw materials.