Then the four most common electrochemical technologies are described: the lead acid battery, the lithium ion battery, the sodium sulphur battery and the redox flow battery. . Given the escalating demand for wearable electronics, there is an urgent need to explore cost-effective and environmentally friendly flexible energy storage devices with exceptional electrochemical properties. The primary and secondary reactions are described for each cell chemistry, alongside the ageing effects that occur and the. . Electrical energy storage (EES) systems constitute an essential element in the development of sustainable energy technologies. Electrical energy generated from renewable resources such as solar radiation or wind provides great potential to meet our energy needs in a sustainable manner.
