As of 2026-09-11 · the last 10 years
Sodium’s research intensity stands at about 33% of its own all-time peak, a level that has steadily declined since the window began.
Research intensity ran from about 40% of the element's own all-time peak in 2016 to about 33% in 2026 — a steady decline, and the all-time peak (1963) lies before this window. Over the same span its share of research attention across all elements held steady. Among the 118 elements, sodium has one of the largest research literatures of any element.
The number of papers involving the element rose from about 147,528 in 2016 to about 313,343 in 2025 (2.12x). That matches the growth of the literature as a whole over the same years: the general tide of scientific output, not a surge specific to the element.
The core of sodium’s recent research is Sodium and Potassium Ion Battery Materials, a community where sodium is central, appearing in about 62% of its papers. This group focuses on anode and cathode materials, including prussian blue and oxide cathodes, for energy storage. While this community accounted for about 43% of sodium’s recent research, its share has declined from about 72% in the previous period. The decade’s most cited work in this area is "Sodium-ion batteries: present and future" (2017), cited over 5,300 times, while recent high-impact work includes "Critically assessing sodium-ion technology roadmaps and scenarios for techno-economic competitiveness against lithium-ion batteries" (2025), cited over 400 times.
A second major strand is Sodium-Glucose Cotransporter Inhibition in Type 2 Diabetes. Here, sodium is a minor presence in a much larger community, involved in about 3% of its papers, which focus on the pharmacology of SGLT2 inhibitors. This community’s share of sodium’s research has risen sharply, from about 1% to about 7%. Key papers include "Empagliflozin in Heart Failure with a Preserved Ejection Fraction" (2021), cited over 4,700 times, and the 2022 consensus report "Management of Hyperglycemia in Type 2 Diabetes," cited over 2,000 times.
The third material community is Sodium Intake and Channel Physiology in Clinical Medicine, where sodium is one strand of a broader field, appearing in about 17% of its papers. These studies examine dietary sodium intake and voltage-gated sodium channel function. Its share of sodium’s research has remained steady at about 6%. Notable work includes "Balanced Crystalloids versus Saline in Critically Ill Adults" (2018), cited over 1,400 times, and "Effect of Salt Substitution on Cardiovascular Events and Death" (2021), cited over 740 times.
Overall, the composition of sodium’s literature is shifting away from battery materials toward clinical and biomedical applications, with the remainder of the element’s research spread across other smaller communities.
For a deeper look at sodium’s current standing, see the Last 12 Months and Executive Brief reports.
What changed in the past year: new papers, shifting applications, emerging collaborators. See the momentum over a shorter window than the decade view.
Personal →See recent trends — Personal.
A by-topic status read of what changed and what's new — built for decision-makers, not search engines. Citation clusters, emerging applications, and the papers that matter most.
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Showing Sodium's three strongest connections. Personal opens the slider and the whole 118-element graph.