Zinc-Nickel Flow Batteries

Electrochemical energy storage technology is the key technology to promote the development of renewable energy. Flow batteries, an important branch of this technology, are known for their unique properties, and zinc-nickel flow batteries (ZNFBs) are particularly known for their high energy density, stability, safety, and cost-effectiveness. This chapter describes the working principle of the ZNFBs. It also outlines the major challenges and obstacles these batteries face, such as dendrite growth, polarization loss, and hydrogen evolution reactions. In addition, current academic research efforts to address these challenges by optimizing battery operating parameters and exploring innovative electrode materials are discussed. In addition, the experimental method of ZNFBs and the application of multi-scale simulation are introduced in detail. In this chapter, the internal mechanism of ZNFBs and the electrochemical process involved are described in depth, and the future development direction and application prospect of battery technology are discussed.