The field of rechargeable batteries has witnessed significant advancements driven by the increasing demand for efficient and sustainable energy technologies. As a key component of rechargeable battery systems, electrolytes play a crucial role in determining the battery reversibility and stability.
Electrolytes act as a transport medium for the movement of ions between electrodes and are also responsible for the enhanced performance and cell stability of batteries. Cell voltage and capacity represent energy density, while coulombic efficiency and cyclic stability indicate energy efficiency.
As a key component of rechargeable battery systems, electrolytes play a crucial role in determining the battery reversibility and stability. Nevertheless, the unsatisfactory ion conductivity and limited low-temperature behaviors of prevailing electrolytes greatly hinder the battery application scenarios.
A matter of concentration: The latest ground-breaking advances and strategies of using concentrated electrolyte for aqueous batteries, are discussed. Emphasis is placed on aqueous batteries for lithium and post-lithium chemistries, with improved energy density, resulting from the unique properties of salt-concentrated electrolytes.
Battery electrolyte has to be topped off from time to time in most car batteries, but water, and not acid, is almost always called for.
Lithium-ion battery technology is viable due to its high energy density and cyclic abilities. Different electrolytes are used in lithium-ion batteries for enhancing their efficiency. These electrolytes have been divided into liquid, solid, and polymer electrolytes and explained on the basis of different solvent-electrolytes.