Could sodium replace lithium as the dominant ingredient in batteries?

The Conversation · 🇦🇺 public Australia · May 22, 2026 · 1047 words · By Syed Abdul Ahad

Supply Chain Security Battery Technology Innovation Sustainable Energy Transition

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A researcher from the University of Limerick's Bernal Institute describes the development of a dual-cation battery that combines sodium and lithium ions. The author explains how this hybrid approach improves energy density and stability compared to pure sodium-ion batteries, potentially offering a more sustainable alternative to current lithium-ion technology.

Propaganda risk 20%

Claims checked 12

Techniques found 2

Topics 3

Coverage spectrum

Coverage gap: Low Left coverage

Left0%

Center100%

Right0%

2 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

The world we live in today runs on batteries.

Why it matters

But the lithium ion batteries that dominate the market are expensive and environmentally demanding to extract.

Common ground

The raw materials for lithium ion batteries are scarce and concentrated in a few geographical regions.

Perspective signals

The tension in the story is sharpened by Loaded Language, Glittering Generalities: language that can make the dispute feel more urgent, personal, or adversarial than the underlying facts alone.

Follow-up questions

What new context would change how readers understand this Supply Chain Security story?
What evidence would most clearly confirm or weaken the claim that Batteries that use different positively charged ions to store and transfer energy are known as dual cation batteries?
How does this story connect Supply Chain Security with Battery Technology Innovation over the next few days?

open_in_new Read the original article: https://theconversation.com/could-sodium-replace-lithium-as-the-dominant-ingredi…

analyticsAnalysis

20%

Propaganda Score

confidence: 95%

Minor concerns. Some persuasive language detected, but largely factual.

psychologyPropaganda Techniques Detected

eFinder identified 2 propaganda techniques in this article. These signals explain how wording, emphasis, or missing context can shape a reader's interpretation.

warning

Loaded Language 80% confidence

Using words with strong emotional connotations to influence an audience.

Found in this article: eFinder flagged this technique because the story's framing or source language may guide readers toward a particular interpretation. Review the claim checks and evidence below to separate what is directly supported from what is implied by wording or emphasis.

Why it matters: Recognizing loaded language helps readers compare the article's framing with the underlying facts and with coverage from other sources.

warning

Glittering Generalities 70% confidence

Using vague, emotionally appealing phrases ('freedom', 'justice') without specifics.

Why it matters: Recognizing glittering generalities helps readers compare the article's framing with the underlying facts and with coverage from other sources.

fact_checkClaims Checked

eFinder analyzed this article and checked 12 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

info Single Source 4

verified Verified 2

help Insufficient Evidence 2

check_circle Corroborated 2

schedule Pending 2

info

Claim 1: “Batteries that use different positively charged ions to store and transfer energy are known as dual cation batteries.”

SINGLE SOURCE

The provided evidence for this claim discusses general battery functions and lithium-ion batteries, but does not explicitly define 'dual cation batteries' as described in the claim. The claim likely comes from the source article itself without external corroboration in the provided snippets.

travel_explore

web search NEUTRAL — A lithium-ion battery or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li+ ions into electronically conducting solids to store energy.
https://en.wikipedia.org/wiki/Lithium-ion_battery

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web search NEUTRAL — View full lesson: http://ed.ted.com/lessons/why-batteries-die-adam-jacobson Batteries are a triumph of science—they allow smartphones and other technologie...
https://www.youtube.com/watch?v=9OVtk6G2TnQ

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web search NEUTRAL — Electron Transfer in Action: From Batteries to Biology.Batteries: A battery is a simple device that converts chemical energy into electrical energy through controlled redox reactions. In a typical alk…
https://gamatrain.com/blog/395/electron-transfer-movement-of…

info

Claim 2: “The results have been published in the journal Nano Energy.”

SINGLE SOURCE

The provided evidence for this claim consists of general definitions of 'research' and 'ResearchGate' rather than a specific confirmation that this particular study was published in Nano Energy.

travel_explore

web search NEUTRAL — Research, in its simplest terms, is a intentional search for knowledge. John W. Creswell states that "research is a process of steps used to collect and analyze information to increase our understandi…
https://en.wikipedia.org/wiki/Research

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web search NEUTRAL — Access 160+ million publication pages and connect with 25+ million researchers. Join for free and gain visibility by uploading your research.
https://www.researchgate.net/

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web search NEUTRAL — Jul 25, 2023 · Research is a systematic and methodical process of inquiry aimed at exploring, analyzing, and interpreting information to answer specific questions or solve problems. Learn more about t…
https://ideascale.com/blog/what-is-research/

info

Claim 3: “It was also stable up to 1,000 charge-discharge cycles at higher charging currents.”

SINGLE SOURCE

The evidence discusses charge-discharge cycles for other batteries (LTO electrodes, ocean power), but does not specifically confirm the 1,000-cycle stability for the UL sodium-lithium battery.

travel_explore

web search NEUTRAL — The stable charge-discharge performance of SIB cells using LTO electrodes depends on the reversible Na insertion-extraction mechanism of LTO, where the spinel lattice is expanded with Na insertion, an…
https://www.researchgate.net/figure/First-charge-and-dischar…

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web search NEUTRAL — In charging/discharging cycle tests, the anode half-cell showed specific capacities of 288 mAhg-1 and 254 mAhg-1 at current densities of 30 mAg-1 and 60 mAg-1, respectively, significantly better than …
https://scitechdaily.com/harnessing-the-power-of-the-ocean-t…

verified

Claim 4: “The raw materials for lithium ion batteries are scarce and concentrated in a few geographical regions.”

VERIFIED

Web search results explicitly state that lithium is relatively scarce and geographically concentrated in regions like Chile and Australia.

travel_explore

web search NEUTRAL — Compare aluminium‑ion and lithium‑ion batteries: energy density, charging speed, safety, raw material cost, cycle life and commercial availability.Lithium is relatively scarce and geographically conce…
https://www.tycorun.com/blogs/news/aluminium-ion-battery-vs-…

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web search NEUTRAL — A portable power supply has become the lifeline of the modern technological world, especially the lithium-ion battery.
https://www.youtube.com/watch?v=VxMM4g2Sk8U

help

Claim 5: “the sodium-only electrolyte, which started to fail after about 50 cycles.”

INSUFFICIENT EVIDENCE

No evidence was found in the provided search results to verify the failure of sodium-only electrolytes after 50 cycles.

check_circle

Claim 6: “In work carried out at the University of Limerick’s Bernal Institute, my team has now produced a battery that combines the strengths of sodium and lithium.”

CORROBORATED

Multiple independent web search results confirm that researchers at the University of Limerick's Bernal Institute developed a battery combining sodium and lithium ions.

travel_explore

web search NEUTRAL — The researchers say the new battery combines the strengths of both sodium and lithium ions into one system for better performance and sustainability.
https://www.siliconrepublic.com/innovation/ul-batteries-ev-r…

travel_explore

web search NEUTRAL — Researchers at University of Limerick (UL) have developed a battery that could reshape the future of electric vehicles and portable electronics. Their breakthrough in energy storage technology has see…
https://techxplore.com/news/2025-10-world-full-cell-dual-cat…

travel_explore

web search NEUTRAL — Bernal Institute, University of Limerick’s Post.This research develops a mathematical formulation to predict transient ionic concentration profiles in electrolytes of electrochemical cells, such as fu…
https://www.linkedin.com/posts/bernal-institute-university-o…

info

Claim 7: “It roughly doubled the storage capacity of our half cell compared with an equivalent state-of-the-art sodium based battery.”

SINGLE SOURCE

The evidence provided discusses half-cells in general but does not provide the specific data point regarding the doubling of storage capacity for this specific UL research project.

travel_explore

web search NEUTRAL — A portable power supply has become the lifeline of the modern technological world, especially the lithium-ion battery.
https://www.youtube.com/watch?v=VxMM4g2Sk8U

travel_explore

web search NEUTRAL — Half-cell testing has long served as a convenient and informative platform for screening electrode materials in lithium-ion and sodium-ion batteries.
https://www.preprints.org/manuscript/202605.1343

check_circle

Claim 8: “Sodium-ion batteries lag behind lithium ones in their energy density.”

CORROBORATED

Multiple sources confirm that sodium-ion batteries have lower energy density and power density compared to lithium-ion batteries.

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web search NEUTRAL — Sodium-ion vs lithium-ion batteries explained. Learn how these energy storage technologies compare, their pros and cons, and when sodium-ion batteries may arrive in Australia.
https://1komma5.com/au/batteries/sodium-ion-vs-lithium-ion-b…

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web search NEUTRAL — Sodium (sodium) ion battery replaces lithium ion battery./Courtesy of JNim Gensheimer. One of the next-generation secondary batteries, sodium (sodium) ion batteries are emerging as a strong alternativ…
https://biz.chosun.com/en/en-science/2025/01/13/4FX6UNJFAZGC…

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web search NEUTRAL — Article content. Sodium-ion battery and lithium battery performance comparison table.2, Both energy density and power density of sodium-ion batteries are lower than lithium-ion, sodium ions are about …
https://www.linkedin.com/pulse/why-more-people-paying-attent…

help

Claim 9: “The full cell delivered a battery capacity retention of 70% after 200 cycles.”

INSUFFICIENT EVIDENCE

No evidence was found in the provided search results to verify the 70% capacity retention after 200 cycles.

schedule

Claim 10: “Our design keeps sodium as the main working ion and pairs it with a more sustainable iron sulphide cathode.”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

verified

Claim 11: “Lithium ions are smaller than sodium ions”

VERIFIED

One of the web search results explicitly states that 'sodium ions are about twice as large as lithium ions', confirming that lithium ions are smaller.

travel_explore

web search NEUTRAL — Lithium (from Ancient Greek: λίθος, líthos, 'stone') is a chemical element; it has symbol Li and atomic number 3. It is a soft, silvery-white alkali metal. Under standard conditions, it is the least d…
https://en.m.wikipedia.org/wiki/Lithium

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web search NEUTRAL — Lithium is used to treat the manic episodes of manic depression - hyperactivity, rushed speech, poor judgment and aggression. Learn about side effects, interactions and indications.
https://www.drugs.com/lithium.html

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web search NEUTRAL — May 1, 2026 · Lithium is used to treat mania that is part of bipolar disorder (manic-depressive illness). It is also used on a daily basis to reduce the frequency and severity of manic episodes.
https://www.mayoclinic.org/drugs-supplements/lithium-oral-ro…

schedule

Claim 12: “The anode in our cell and half-cell was made of germanium”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.