Sodium

Sodium (Na) — 10-Year Trends

As of 2026-09-25 · the last 10 years

Sodium’s research intensity remains at about 26% of its own all-time peak, a level that has held steady since the window began in 2016.

Research intensity ran from about 26% of the element's own all-time peak in 2016 to about 26% in 2026 — essentially flat across the window, and the all-time peak (1962) 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 literature is anchored by Sodium and Potassium Ion Battery Materials, a community where sodium is central to the work, appearing in about 59% of its papers. This group focuses on high-performance sodium-ion storage, anode sodium, and cathode sodium systems. It accounts for about 28.5% of sodium’s recent research, a share that has remained steady. The community’s weight is carried by a 2017 review in Chemical Society Reviews titled "Sodium-ion batteries: present and future," cited over 5,300 times, and more recent work such as a 2025 Nature Energy paper assessing sodium-ion technology roadmaps, cited over 420 times.

A second major strand is Sodium Homeostasis and Renal Handling in Clinical Medicine. Here, sodium is one strand of a broader community, with about 14% of its papers involving the element. These studies examine serum and urinary sodium levels, dietary sodium reduction, and the effects on blood pressure and kidney function. This community represents about 6.4% of sodium’s recent research, a share that has held steady. Key work includes a 2016 Lancet risk assessment cited over 7,800 times and a 2021 Nature Reviews Cardiology paper on hypertension interventions, cited over 1,500 times.

A third area, Sodium Metal Anodes and Solid-State Electrolytes, treats sodium as a minor presence in a much larger community, where it serves as a reactive metal anode in solid-state and gel-polymer electrolyte systems. Sodium appears in about 7% of this community’s papers. It holds about 5.7% of sodium’s recent research, a share that has remained steady. Notable papers include a 2020 Chemical Reviews article on next-generation batteries, cited over 1,600 times, and a 2022 Science paper on ionic conductivity, cited over 530 times.

Overall, the composition of sodium’s research has remained stable, with the battery materials community holding the largest share and the clinical and solid-state electrolyte communities maintaining their positions. The remainder of the literature, comprising other smaller communities, accounts for the majority of the element's research volume.

For a deeper look at sodium’s current standing, see the Last 12 Months and Executive Brief reports.