Journal of Primeasia
Integrative Disciplinary Research | Online ISSN 3064-9870 | Print ISSN 3069-4353
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Volume 7 Number 1 2026
REVIEWS (Open Access)
Potassium-Ion Batteries: Emerging Anode Materials and Strategies for High-Performance Energy Storage
Abbas Mohammed Sahib 1*
Journal of Primeasia 7 (1) 1-8 https://doi.org/10.25163/primeasia.7110783
Submitted: 14 January 2026 Revised: 06 March 2026 Accepted: 16 March 2026 Published: 18 March 2026
Abstract
Potassium-ion batteries (PIBs) have recently emerged as a promising alternative to lithium-ion batteries due to the abundance, low cost, and comparable electrochemical properties of potassium. The development of high-performance anode and cathode materials is critical for realizing the full potential of PIBs. This systematic review and meta-analysis synthesizes the current advancements in PIB electrode materials, electrolyte formulations, and structural engineering strategies, highlighting their impact on energy density, cycling stability, and rate capability. Particular attention is given to carbonaceous materials, transition metal dichalcogenides (especially MoS2), and alloy-type anodes, which demonstrate diverse mechanisms such as intercalation, conversion, and alloying reactions. The review integrates quantitative performance metrics from multiple studies, providing comparative insights on reversible capacity, Coulombic efficiency, and capacity retention over extended cycling. Key findings suggest that hierarchical nanostructuring, heteroatom doping, and carbon composite formation significantly enhance potassium storage performance by mitigating volume expansion, improving conductivity, and stabilizing the solid electrolyte interphase. Moreover, electrolyte optimization, including potassium salts and solvent systems, plays a pivotal role in reducing side reactions and improving long-term stability. Despite substantial progress, challenges remain in balancing energy density with cycle life and safety, particularly for large-scale applications. This work offers a comprehensive evaluation of PIB materials and identifies critical directions for future research, emphasizing strategies to achieve high-performance, cost-effective, and sustainable potassium-ion batteries.Keywords: Potassium-ion batteries; Anode materials; MoS2; Carbon composites; Energy storage; Electrolyte optimization; Cycle stability
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