Sodium ion capacitors (SICs) represent a major advancement in the field of energy storage technology. SICs combine the high energy of batteries with the high power of capacitors by pairing battery-type (negative) and capacitor-type (positive) electrodes, offering a cost-effective alternative to lithium-based systems. Since its inception in 2012, numerous research works have focused on the optimization of electrode materials, particularly the porous carbons (PCs) positive electrode material. PCs such as activated carbons are mostly adopted thanks to their good compatibility with high potential windows. However, the commercial viability of SICs is currently being limited by the low discharge capacity of the activated carbon positive electrode. This review provides an in-depth analysis of how synthesis properties impact porous carbon properties (morphology, porosity, structure and surface chemistry), drawn from literature findings from comprehensive databases. It further establishes the synthesis-property correlation with the electrochemical performance of PCs in Na metal half-cell. Also, the charge storage mechanisms as related to capacitive and pseudo-capacitive mechanisms were extensively examined. Additionally, pre-sodiation strategies for building dual-carbon SIC full cells are discussed, alongside the performance of PCs incorporating various carbon-based negative electrode materials. Finally, it addresses the challenges and opportunities in improving PC performance toward SIC commercialization.
This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 25 February 2026.
All research outputs
#20,445,551
of 31,849,655 outputs
Outputs from Advanced Science
#4,730
of 9,076 outputs
Outputs of similar age
#45,260
of 150,399 outputs
Outputs of similar age from Advanced Science
#66
of 456 outputs
Altmetric has tracked 31,849,655 research outputs across all sources so far. This one is in the 34th percentile – i.e., 34% of other outputs scored the same or lower than it.
So far Altmetric has tracked 9,076 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 12.9. This one is in the 46th percentile – i.e., 46% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 150,399 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 67% of its contemporaries.
We're also able to compare this research output to 456 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 83% of its contemporaries.
