Pore structure energy storage

Can pore structure design boost ion transport?

Learn more. Porous structure design is generally considered to be a reliable strategy to boost ion transport and provide active sites for disordered carbon anodes of Na-ion batteries (NIBs). Herein, a type of waste cork-derived hard carbon material (CC) is reported for efficient Na storage via tuning the pore species.

Do pore structures increase the storage capacity of hard carbon anodes?

Notably, the pore structures play a key role in increasing the sodium storage capacity and ICE of hard carbon anodes, and the suitable pore structures (always below 1 nm) have been proved to be effective in promoting plateau capacity [6, 19].

How do we regulate the pore structure of hard carbon?

However, it is still a challenge to accurately regulate the hard carbon micropore structure and customize the appropriate interface. Herein, different heteroatoms are introduced into the precursor to regulate the pore structure of hard carbon through its pyrolytic components, and in-situ doping is also used to optimize the interface.

How can a pore size improve ice and cyclic stability?

The oxygen atoms and the abundant microporous with the pore size (0.5∼0.9 nm) can also provide plentiful active sites to enhance both the slope and plateau capacity, and the abundant C = O on the surface of hard carbon can induce the formation of NaF-rich SEI to improve the ICE and cyclic stability.

Do bioinspired high temperature pore-closing strategies help design porous carbon anodes?

The bioinspired high temperature pore-closing strategy and the new insights about the pore structure–performance relationship provide a rational guide for designing porous carbon anode of NIBs with tailored pore species and high Na storage capacity. The authors declare no conflict of interest.

Why are porous materials a cross-scale structure?

Article link copied! Porous materials, characterized by their controllable pore size, high specific surface area, and controlled space functionality, have become cross-scale structures with microenvironment effects and multiple functions and have gained tremendous attention in the fields of catalysis, energy storage, and biomedicine.