Sodium-Ion and Lithium-Ion Battery Technologies
Summary
Rechargeable batteries based on lithium and sodium ions underpin modern portable electronics, electric vehicles and grid-scale storage. Lithium-ion systems have achieved commercial maturity through optimised intercalation materials, high energy density and long cycle life. However, concerns over lithium resource supply, cost and geographic concentration have spurred interest in sodium-ion alternatives. Sodium-ion batteries share many design principles with their lithium counterparts but must accommodate the larger ionic radius and different redox chemistry of sodium. Recent advances in cathode materials—ranging from layered oxides and polyanion frameworks to Prussian blue analogues—have improved sodium-ion voltage profiles and rate capability. On the anode side, hard carbons and novel conversion materials offer pathways to enhanced specific capacity. Electrolyte formulation and electrode–electrolyte interfaces remain critical for cyclability and safety. Together, these technologies address global demands for sustainable energy storage, with lithium-ion continuing to lead in high-power applications and sodium-ion emerging as a cost-effective solution for large-scale deployment.
Research from Nature Portfolio
No recent Nature Portfolio content available.
Sodium-Ion and Lithium-Ion Battery Technologies publication trend
The graph below shows the total number of articles in sodium-ion and lithium-ion battery technologies across all publications each year (not limited to Nature Index journals).
Technical terms
Sodium-ion battery: A rechargeable cell that shuttles Na⁺ between electrodes during charge and discharge, using similar intercalation or conversion mechanisms to lithium-ion cells but tailored to the larger sodium ion.
Lithium-ion battery: A rechargeable electrochemical device in which Li⁺ migrates between negative and positive electrodes through a liquid or solid electrolyte, known for high energy density and cycle life.
Anode: The negative electrode where oxidation occurs during discharge; commonly graphite in lithium-ion cells and hard carbon or conversion materials in sodium-ion systems.
Cathode: The positive electrode where reduction occurs during discharge; typically layered metal oxides, polyanions or Prussian blue analogues in sodium-ion and lithium-ion batteries.
Intercalation: The reversible insertion of ions into a host material’s lattice without major structural change, enabling high-cycle stability.
Conversion reaction: A storage mechanism where the electrode material undergoes a phase change, often yielding higher theoretical capacity but posing challenges in volume stability and reversibility.
Electrolyte: The ionic conductor between electrodes that allows ion transport while preventing electronic short-circuiting; composition affects conductivity, voltage window and interfacial stability.
References
- Interface Engineering of Fe7S8/FeS2 Heterostructure in situ Encapsulated into Nitrogen-Doped Carbon Nanotubes for High Power Sodium-Ion Batteries. Nano-Micro Letters (2023).
- Modulation of the Oxidation End‐Product Toward Polysulfides‐Free and Sustainable Lithium‐Pyrite Thermal Batteries. Advanced Science (2023).
- Electrospun MoS2-CNTs-PVA/PVA Hybrid Separator for High-Performance Li/FeS2 Batteries. Polymers (2024).
About these summaries
This Nature Research Intelligence Topic summary is created with the cited references and a large language model. We take care to ground generated text with facts, and have systems in place to gain human feedback on the overall quality of the process in line with our AI principles. We strive to create accurate and useful summaries for people unfamiliar with the research topic and that supports this goal. These pages are a beta release and will be updated as we learn how best to help people gain value from a research topic summary.
Turn complex research questions into confident strategic decisions
When you're under pressure to set direction, justify investment, or understand your competitive position, you need more than raw data — you need trusted insights you can act on.
Benchmark your performance against global peers using robust, methodologically sound analysis.
Combine quantitative metrics with qualitative expert insight to uncover strengths, gaps and emerging opportunities.
Gain tailored, decision-ready recommendations aligned to your strategic priorities.
Talk to us to learn more about our data dashboards and bespoke strategy reports.
Grow research skills, confidence and careers with training built for every stage of the research lifecycle.
Developed with Nature Portfolio journal Editors and internationally renowned experts. Discover three ways to learn:
Self-paced, online courses in convenient bite-sized units, covering key skills across scientific writing, publishing, grant writing, data analysis, and more.
Expert trainer-led workshops with hands-on exercises and real-time feedback across core research skills, delivered via interactive group sessions.
Editor-led workshops combining core principles in writing and publishing, personalised 1:1 feedback from Nature Portfolio Editors and hands-on exercises.
Explore course catalogues and workshop agendas, enquire about the options or request institutional pricing.