Do electrochemical energy storage systems self-discharge?

Further, the self-discharging behavior of different electrochemical energy storage systems, such as high-energy rechargeable batteries, high-power electrochemical capacitors, and hybrid-ion capacitors, are systematically evaluated with the support of various theoretical models developed to explain self-discharge mechanisms in these systems.

Do high-power energy storage devices have higher self-discharge than rechargeable batteries?

Generally, high-power energy storage devices show comparatively higher self-discharge than high-energy rechargeable batteries, mainly depending upon their mode of energy storage.

Is self-discharge an unwelcome phenomenon in electrochemical energy storage devices?

Self-discharge is an unwelcome phenomenon in electrochemical energy storage devices. Factors responsible for self-discharge in different rechargeable batteries is explored. Self-discharge in high-power devices such as supercapacitor and hybrid-ion capacitors are reviewed. Mathematical models of various self-discharge mechanisms are disclosed.

How to address self-discharge in energy storage systems?

Different self-discharge mechanisms are analyzed in detail and provide prospects to address the self-discharge in energy storage systems by giving directions to the various self-discharge suppression strategies, varying from diverse device components (electrode and electrolyte materials, separators, etc.) to cell assembling and protocols.

Does self-discharge affect energy storage performance?

Even though these energy storage systems are perfectly matched for different time frame applications, an unwanted process, namely, self-discharge, adversely affects their electrochemical performance and is highly related to the nature of devices.

Is self-discharge a limiting factor of energy storage devices?

Mathematical models of various self-discharge mechanisms are disclosed. Comprehensive overview of suppression strategies and future research directions. Self-discharge is one of the limiting factors of energy storage devices, adversely affecting their electrochemical performances.