Abstract
Sodium-ion batteries are promising alternative electrochemical energy storage devices due to the abundance of sodium resources. One of the challenges currently hindering the development of the sodium-ion battery technology is the lack of electrode materials suitable for reversibly storing/releasing sodium ions for a sufficiently long lifetime. Redox-active polymers provide opportunities for developing advanced electrode materials for sodium-ion batteries because of their structural diversity and flexibility, surface functionalities and tenability, and low cost. This review provides a short yet concise summary of recent developments in polymer electrode materials for sodium-ion batteries. Challenges facing polymer electrode materials for sodium-ion batteries are identified and analyzed. Strategies for improving polymer electrochemical performance are discussed. Future research perspectives in this important field are projected.
Highlights
The evolution of polymeric electrodeand materials from the work on polyimides, This review provides a summary of recent research developments of initial polymer electrode materials their electrochemical performance and electrode sodium storage mechanisms will work be discussed
It is believed that polymer batteries represent the future energy storage technology
While a variety of polymer electrode materials for sodium-ion batteries has been investigated, the research remains in its infancy
Summary
The ever growing and increasing demand for energy and the related environmental issues have become two major challenges to human society in the 21st century [1]. In order to address these challenges, worldwide effort has been invested into making full use of renewable and sustainable energy resources, such as wind and solar energy. These energy resources are intermittent and supply is not predictable, requiring systems to store the energy collected [2]. With the massive growth of renewable energy sources, energy storage is becoming more and more important and indispensable to the development of renewable energy
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