Are metal ion batteries a good energy storage device?

Metal-ion batteries (such as lithium-ion batteries) are very popular energy-storage devices nowadays. However, low temperatures cause their poor electrochemical kinetics and performance, significantly limiting their wide applications in cold environments.

Are negative electrodes suitable for high-energy systems?

Current research appears to focus on negative electrodes for high-energy systems that will be discussed in this review with a particular focus on C, Si, and P.

Can negative-thermal-expansion behavior improve low-temperature electrochemical performance of metal-ion batteries?

Here, we propose that electrochemical energy-storage materials with negative-thermal-expansion (NTE) behavior can enable good low-temperature electrochemical performance, which becomes a new strategy to tackle the low-temperature issues of metal-ion batteries.

Are electrostatic microcapacitors the future of electrochemical energy storage?

Moreover, state-of-the-art miniaturized electrochemical energy storage systems—microsupercapacitors and microbatteries—currently face safety, packaging, materials and microfabrication challenges preventing on-chip technological readiness2,3,6, leaving an opportunity for electrostatic microcapacitors.

Can ultrahigh energy density and power density overcome the capacity–speed trade-off?

This simultaneous demonstration of ultrahigh energy density and power density overcomes the traditional capacity–speed trade-off across the electrostatic–electrochemical energy storage hierarchy1,16.

What is negative-thermal-expansion (NTE)?

Learn more. Electrochemical energy-storage materials with negative-thermal-expansion (NTE) behavior can enable good low-temperature electrochemical performance, which becomes a new and effective strategy to tackle the low-temperature issue of metal-ion batteries.