An integrated energy-efficient electrochromic device for salt water purification

Abstract

Herein, we report a multifunctional device which integrated energy-desalination-smart electrochromic display into one single cell. Specifically, a new concept of chemical assisted electrochromic desalination battery was demonstrated using prussian blue...

Faradaic Electrodes Open a New Era for Capacitive Deionization

“…Integrating some energy-harvesting devices (e.g., solar-driven devices) with CDI cells to construct self-sustainable or energy-efficient desalination systems has also attracted research interest. [91][92][93] For example, Ramalingam et al [91] reported a novel desalination system involving internal integration of a dye-sensitized solar cell and redox-flow desalination cells with a bifunctional platinized-graphite-paper intermediate electrode. By applying visible light illumination, saline solution can be continuously desalinated to freshwater level.…”

“…By applying visible light illumination, saline solution can be continuously desalinated to freshwater level. Silambarasan et al [93] proposed a new concept of chemical assisted electrochromic desalination system, and demonstrated practical implementation by using metal hexacyanoferrate cathode and an anode consisting of Ag or redox-active polymer film in brackish water without applying any external electrical energy. In brief, such new device concepts and designs can promote the development of desalination technologies in remote regions with limited electricity.…”

“…As for the design of Faradaic flow-electrode CDI, some essential questions, such as the design of feasible flow-type electrode, the approach to regenerating Faradaic electrodes, and the actual running of the circular system, should be taken into consideration at the same time. Another direction is the advanced integration of CDI systems with other electrochemical devices to achieve practical targeted goals, such as constructing solar-driven desalination [91,92] or electrochromic desalination [93] ) to achieve self-sustainable or energyefficient desalination as mentioned in Section 2.1. Novel cell concepts should be explored.…”

Biomass Derived High Areal and Specific Capacity Hard Carbon Anodes for Sodium-Ion Batteries

“…Rechargeable battery systems such as lithium-ion batteries (LIBs), sodium-ion batteries (NIBs), and potassium-ion batteries (KIBs) are considered to be promising energy storage solutions to help alleviate the aggravating problems of global warming arising from a burgeoning energy demand. − From the sustainability point of view, it is of paramount importance to decrease our dependence on fossil-based energy production by shifting to renewable energy sources such as solar, wind, and tidal energies. The majority of the large-scale renewable energy streams have intermittent power output which will require efficient and economically viable energy storage technologies to capture the energy from these sources for successful integration into the electrical grid. − LIB technology is a well-established and ubiquitous energy storage system, which has been powering the majority of portable electronic devices mainly due to their high energy density and stable cycling characteristics . Lithium and sodium are from the same group in the periodic table and thus share very similar chemical and physical properties, which has led to substantial interest in the development of NIBs, which is mainly driven by the significantly larger natural abundance of sodium reserves relative to lithium reserves. − Both of these energy storage systems can be employed in a range of applications depending on the safety, portability, energy density, and cost-effectiveness.…”

Lithium-Ion-Assisted Ultrafast Charging Double-Electrode Smart Windows with Energy Storage and Display Applications

“…It is a suitable material for preparing transparent electrochromic batteries. In recent years, there have been many reports on electrochromic electrodes based on PB or PB analogues. − However, conventional electrochromic batteries usually have only single electrode with electrochromic material. , Actually, the battery containing double electrodes (anode and cathode) with electrochromic materials is more convenient and efficient at storing and releasing energy when needed in transparent portable electronic device, so it is of great significance to study a battery with double electrochromic electrode materials. At present, batteries containing both an anode and cathode with electrochromic materials are rather rare.…”