Toward polymer composites based and architectural engineering induced flexible electrodes for lithium-ion batteries

Jahidul Islam, Faisal I. Chowdhury, Wahidur Raza, Xianghui Qi, M. Rezaur Rahman, Jagotamoy Das, Jamal Uddin and Hossain M. Zabed

Renewable and Sustainable Energy Reviews, 2021, vol. 148, issue C

Abstract: Recently, polymers, especially conducting (CPs) and non-conducting polymers (nCPs), have been emerged as the promising flexible electrode components for lithium-ion batteries due to their inherent high mechanical tolerance limit, excellent thermal and chemical stability, low density, ease of processing, low cost, and versatility. In addition, CPs provide good electrical conductivity. Polymeric structures remain almost the same even after hundreds to thousands of electrochemical cycles. However, some crucial factors, such as low conductivity, energy density, and rate performance, often limit the large-scale exploitation of these polymers. Although CPs, and nCPs can provide the desired flexibility, nCPs, in particular, increase the ‘dead volume’ of electrodes. In this context, it is necessary to resolve the issues existing with the polymers to make them effective confinement matrices for flexible electrodes. On the other hand, customizing the electrode architectures is vital for achieving multidirectional flexibility without compromising energy density and overall capacity. However, low active materials loading and deviation from the customized structures after several deformation cycles still affect the desired performance in terms of electrochemical and mechanical. Furthermore, the intricate and costly preparation processes of customized electrodes are the major bottlenecks toward practical applications. This review discusses the recent progress, merits, and demerits of the most widely studied polymer composites-based and architectural engineering induced flexible electrodes for lithium-ion batteries (LIBs). Both CPs and nCPs are discussed in the perspectives of current research status, major limitations, key factors associated with electrochemical performances and future outlook of the developments on polymer-based flexible electrodes.

Keywords: Polymer composites; Architectural engineering; Customized electrodes; Flexible electrodes; Lithium-ion batteries; Energy storage (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1016/j.rser.2021.111302

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